Operator
Greetings. Welcome to Double Verify's first quarter 2023 financial results conference call. At this time, all participants are in a listen-only mode. A question and answer session will follow the formal presentation. If anyone should require operator assistance during the conference, please press star zero on your telephone keypad. Please note this conference is being recorded. I will now turn the conference over to TJL Engman, Investor Relations. Thank you. You may begin.
TJL Engman
Good afternoon and welcome to Double Verify's first quarter 2023 earnings conference call. With us today are Mark Zagorski, CEO and Nicola Lai, CFO. Today's press release and this call may contain forward-looking statements that are subject to inherent risks, uncertainties and changes and reflect our current expectations and information currently available to us and our actual results could differ materially. For more information, please refer to the risk factors in our recent SEC filings, including our Form 10-Q and our annual report of Form 10-K. In addition, our discussion today will include references to certain supplemental non-GAAP financial measures and should be considered in addition to and not as a substitute for our GAAP results. Reconciliations for the most comparable GAAP measures are available in today's earnings press release, which is available on our Investor Relations website at ir.doubleverified.com. Also, during the call today, we'll be referring to the slide deck posted on our website. With that, I'll turn it over to Mark.
Mark Zagorski
Thanks, Agil, and thank you all for joining us today. I'm excited to discuss our strong first quarter performance and optimistic outlook for the rest of the year. We started 2023 laser-focused on a few key areas. First, on launching innovative, outcome-driving products anchored in our deep expertise and legacy investments in machine learning and data science. scaling our independently accredited core verification solutions across the leading social and CTV platforms. And finally, expanding our partnerships with large advertisers and preeminent digital ad platforms around the globe. On all three fronts, we can confidently state that we are executing ahead of our expectations. In the face of a challenging macro environment, our performance remains resilient due to the efficacy and utility of our solutions and the deep trust we have built with all of our stakeholders as an unbiased, independent analytics engine committed to making the digital advertising ecosystem stronger, safer, and more secure. This steadfast vision continues to be DV's North Star, core to the value we deliver and proven to generate exceptional ROI for our customers and partners. Our first quarter results exemplify the impact of this commitment when it is embraced and empowered by a passionate group of DVT members in 21 locations around the world. We grew first quarter revenue by 27% year over year to $123 million, exceeding the top end of our guidance and significantly outpacing the growth rates of both the digital ad industry and our competitors. We saw strong, sustained, and broad-based demand for DV solutions with each of our three business lines delivering double-digit growth. Advertiser demand for both our premium-priced, authentic brand suitability programmatic solution and our social measurement solutions continue to grow, resulting in strong business expansion with existing customers and new customer wins. We won numerous RFPs in the first quarter, representing meaningful expansions with existing clients. including Merck adopting DV measurement and ABS in 60 international markets, Airbnb making DV authentic ad its measurement currency in multiple LATAM markets, and Amazon Prime Video deploying DP's proprietary pre-campaign activation and post-campaign measurement solutions on YouTube. On the customer acquisition front, in addition to previously announced Q1 wins, including Air France and Swarovski in EMEA, and Mattress Firm in the U.S., we closed additional new logos in the first quarter, including Evoke Health and New York Presbyterian in the U.S., Dakin in APAC, and the Public Investment Fund of Saudi Arabia in the Middle East. Our win rate across all opportunities remained above 80%, with 67% of our first quarter wins being Greenfield, which we define as wins where the advertiser wasn't using third-party tools for the business that DV won. This steady rate of greenfield wins exemplifies the underpenetrated TAM that DV continues to benefit from. These new client wins play into our successful land and expand strategy, through which we grew the number of advertiser customers generating more than $200,000 over the last 12 months by 31% in the first quarter. With 45% of our top 700 customers using less than half of our key products in 2022, the opportunity to expand within our existing customer base remains significant. Our acquisition strategy also continues to pay dividends when it comes to client growth. By focusing on M&A that accelerates our product roadmap, As complementary new technologies and expands new local market coverage, we create growth opportunities across the DV portfolio and drive measurement currency ubiquity. Since integrating our acquired social activation tools at the beginning of 2022, over 65 new customers have activated DV's pre-campaign social solutions on YouTube and or on Meta. Newly acquired resources help drive growth across our international measurement customer base, with over 60 new customers activating the DV authentic ad in EMEA since the fourth quarter of 2021. DV continues to outpace the industry and gain market share due to three key differentiators, our rapidly growing scale, our industry-leading innovation, and the deep level of trust we've built with our customers as an unbiased and independent partner. Beginning with innovation, DV's innovation engine is fueled by the unparalleled scale and ubiquity of the data we capture and which is brought to life by the proprietary data science that drives our machine learning technologies. AI and machine learning that powers it have become buzzwords with little explanation of how they drive differentiation and build advantages for the companies that leverage them. Let's discuss how this works for DV. Head-to-head tests that show that DV's ML-supported pre-bid brand safety and suitability solutions consistently drive greater reductions in post-bid block rates than our competitors' solutions do. We believe this is due to our differentiated and proprietary text and video classification technologies that leverage sophisticated models that have been built and trained over the last decade. The same is true for our fraud verification capabilities. The DV Fraud Lab consists of dedicated data scientists, mathematicians, and analysts from the cyber fraud prevention community who have developed and trained DV's proprietary algorithms, making them incredibly effective at identifying millions of bot and malware devices daily. The growth of AI also may have an interesting impact on the utility and opportunity for our product suite as an increasing number of advertisers are wrestling with their approach to AI-created content, and their comfort with having ads associated with it. DD currently identifies low quality content that may be algorithmically generated and is working with clients to determine how we evolve classification to meet their new demands. The data science rigor that powers our AI models is best in class, extending from contextual classification to fraud detection and now to attention. Today, DV offers the industry's most robust cross-platform attention solution, which uses impression-level data, not limited to panels, to measure 50 unique data points related to the exposure and engagement of ad impressions that are first verified as viewable by DV's industry-accredited standards. Last week, we were thrilled to make the leap from attention to action by launching the DV Universal Attention Segment. the industry's first automated attention optimization solution for programmatic media buying. Powered by DB's global attention data, our pre-bid universal attention segment enables brands to improve performance by optimizing away from low attention environments without sacrificing scale and reach. Across numerous leading DSPs, any advertiser can activate DB's universal attention segment, including those that use our competitors' measurement solutions. not only creating a fast, long-term activation opportunity, but also unlocking a large measurement upsell opportunity down the road. Speaking of measurement, DV authentic attention measurement continues to gain momentum with first quarter test volumes doubling and campaign activations tripling year over year. Nearly 80 advertisers have activated DV authentic attention campaigns so far in 2023. exceeding the number of advertisers that activated campaigns in all of 2022. Our pioneering work and attention goes beyond thought leadership. DeeDee has real attention solutions. They're at the forefront of driving attention as a currency and generating real results for our customers in market today. Let's move on to one of DeeDee's most successful and important product innovations, authentic brand suitability. Since its release in 2018, we've significantly enhanced the value ABS delivers through the release of new performance driving functionality, including brand suitability tiers, CTV exclusion and inclusion lists, page exception lists, and new content avoidance categories that outstrip any competitive offering. On the heels of our successful price bifurcation for our standard programmatic products in 2022, We've also started to implement a bifurcation of ABS's pricing by introducing a higher rate for ABS video while maintaining the original price for display. ABS revenue grew 56% year over year in the first quarter, driven by a 55% increase in volume and a 1% increase in price. Our ability to raise prices even on our premium price products while continuing to deliver strong volume growth speaks to the value of our solutions delivered to our customers and the long-term potential for DV to evolve towards a more value-based pricing model, particularly for higher CPM media, such as CTV. On top of these great revenue-generating innovations, DV continues to launch self-service automation tools like Campaign Automator and Pinnacle 2.0, our upgraded client UI. which lower client overhead to employ DV solutions, making it easier than ever to efficiently drive results across a client's full portfolio of brands. With our next differentiator, scale, let me begin with social measurement, which delivered 33% year-over-year volume growth in the first quarter. Our social measurement growth in dollar terms was led by advertisers leveraging our solutions on Meta's platform, which generates almost half of our social measurement revenue, followed by YouTube applications and then DV tools on TikTok. Existing social customers such as Mondelez and Airbnb expanded their use of DV social solutions on Meta and YouTube and activated the authentic ad on TikTok for the first time, with new logo wins also contributing to the social measurement growth. Our customers are rapidly activating the DeFi authentic ad on TikTok, where we have doubled the number of customers year over year and have grown TikTok's first quarter revenue contribution by over 50% compared to the fourth quarter of 2022. In fact, we generated nearly as much TikTok revenue in Q1 as we did in the full year of 2022. With TikTok supporting their badge measurement partners brand safety and suitability expansion to nearly 45 markets, We are scaling our coverage across key English, Spanish, French, and Portuguese-speaking markets this year with a focus on maximizing market coverage for our top advertiser customers. As a badged Meta business partner, we value Meta's ongoing commitment to providing advertisers with transparency through brand suitability controls and verifications. We are excited to begin expanding our offerings over the coming months and remain in consultation with Meta for brand suitability verification and measurement solutions on the feed, which will complement our viewability and invalid traffic solutions, enabling further expansion of DD's authentic ad coverage to an even broader array of consumer engagements. Turning to CTV scale, we grew CTV measurement volumes by 39% in the first quarter, outpacing the 14% CTV revenue growth expected of the industry in 2023, according to IAB research. We launched viewability verification and fraud protection coverage on Netflix ad-supported plan, with DV's verification on Netflix now available in 12 markets globally. CTV remains a strong differentiator for DV due to our comprehensive coverage industry-leading solutions, and proprietary ability to identify CTV fraud. Only DD covers all of the platforms that receive the majority of CTV ad spend, and our industry-leading solutions span all aspects of CTV, from pre-bid avoidance to post-bid blocking and monitoring. Most importantly, we believe that no other company has made as comprehensive as an investment in people, infrastructure, and partnerships to ensure that CTV transactions are fraud free. Let me wrap up on scale with a focus on our international business expansion, where we delivered 26% year-over-year measurement revenue growth in the first quarter, with both the EMEA and APAC regions exhibiting double-digit growth. Since the beginning of 2021, we've nearly doubled our international sales, marketing, and client services headcount, including appointing several new country leaders to cultivate local business. With approximately 170 commercial personnel in the ME&APAC and a market growth plan that includes opening five new international markets, we'll expand DD's commercial footprint to 26 locations by year-end. We couldn't be more excited about our prospects outside of North America in the coming years. A great example of the payoff of our increased international investments is the deal we recently closed with the TVS television network in Japan, a news site owned by 28 Japan news network TV broadcasting companies. TVS has adopted DV's publisher suite, an analytics and automation solution that comprehensively supports ad quality control and revenue analysis for publishers and media companies globally. Our final differentiator is trust. which underpins our relationships with advertisers and platform partners and is core to the value we deliver to the digital advertising ecosystem. DV has a comprehensive suite of accreditations and certifications and has never lost an international accreditation or had one revoked. Our globally recognized TAG certifications and MRC accreditations demonstrate DV's commitment to innovation and delivery against the highest possible industry standards. This trust extends to how we approach privacy and data management as well. DV was recently ranked in the top 1% of over 1,600 data providers scored by Neutronian in their latest transparency ratings report and has renewed its Neutronian cookie-less certification badge, which provides marketers with verification that the certified data provider is future-proofed for the deprecation of third-party cookies. Our concerted action to uncover and publicize sophisticated global fraud schemes that attempt to siphon millions of dollars of ad spend across industry channels cements our position as a trusted partner acting in the best interests of our customers and the industry. Aggressively unearthing fraud is core to DV's mission and the basis upon which any advertising outcome should be measured. Last year, DV's Fraud Lab detected and mitigated dozens of fraud schemes and variants, with new fraud schemes more than doubling over the last two years. This year, DV uncovered BeatSting, an audio fraud scheme, and partnered with Roku to expand its Watermark technology to uncover many more fraud use cases, including sophisticated user spoofing that creates fake impressions. This was the case with Smokescreen, a fraud scheme that DV identified that continues to generate more than 300 million ad requests and siphons over $6 million monthly from unprotected advertisers and publishers. Trust isn't only about accreditations and reports. It's about people and relationships. Since the day I joined nearly three years ago, my drive has been to build a powerful, diverse, and stable leadership team made up of the most innovative, customer-centric minds in the space. Our transparent commitment to a clear common goal has allowed us to attract the best talent who become a consistent voice to all of our stakeholders and generating trust across the advertising ecosystem. Driven by a common mission and belief in our long-term vision, our team sticks together and based on our 95% gross revenue retention rate over the last three years, they are a big factor in why our clients stick with us too. To conclude, we often talk about how scale, innovation, and trust are three key differentiators. Execution is arguably the most critical to the success of any business. DV continues to win because we execute better, period. Our ability to successfully innovate drives better product performance that helps us win new clients, which in turn provides the data fuel that powers a flywheel that ultimately grows our business. We are pleased with the strong start to the year and remain laser focused on growing and realizing our solid pipeline of new and expansionary deals that will further drive our market share and create an even stronger long-term growth trajectory. With that, let me hand the call over to Nicola.
Agil
Thanks, Mark, and good afternoon, everyone. We're pleased to have delivered strong revenue growth and profitability in the first quarter. The outperformance relative to our expectations was primarily driven by stronger than expected measurement growth, which gives us the confidence to raise our full year 2023 revenue and adjusted EBITDA guidance. Total revenue grew 27% in Q123 to $123 million, primarily driven by advertiser revenue growth of 28%. which continues to be volume-led. In the first quarter, MTMs were up 25% year-over-year, while MTFs grew 3% year-over-year. Activation revenue continues to be driven by our premium ABS programmatic solution, which is now in its fifth year since launch. ABS delivered 56% revenue growth and comprised 56% of activation revenue compared to 48% in the prior year period. As Mark mentioned, ABS volumes were up 55%, and the ABS-60 was 1% higher as we rolled out bifurcated ABS pricing for display and video impressions following the implementation of a similar price bifurcation for our standard programmatic products in the first quarter of last year. The ABS price bifurcation was assumed in our original full-year 2023 guidance. And most of ABS's first quarter growth came from volume expansion by existing customers who continue to deploy this industry-leading solution across additional markets. Turning to measurement, revenue grew 22%, driven by existing customer expansion on social and by the ramp of new enterprise customers that we signed last year. Social measurement growth was led by Meta and by TikTok, which almost achieved its full year 2022 revenue contribution in the first quarter alone. International growth of 26% in the first quarter outpaced overall measurement growth and now represents 26% of total measurement revenue. Supply side revenue grew 15%, driven in particular by continued platform revenue growth from Amazon and LinkedIn. Shifting to expenses, cost of revenue increased by approximately $7 million, primarily due to higher costs from revenue sharing arrangements with programmatic partners tied to higher programmatic revenue, and also due to an increase in cloud services costs. Revenue-less cost of sales of 80% in Q123 is expected to remain relatively stable for the remainder of the year as we continue to invest in scaling the infrastructure needed to support our growth. First quarter research and development expenses increased due to investments in AI and machine learning engineering resources. Sales and marketing and G&A expenses combined remain relatively stable year over year, as our growing scale is driving leverage on these two operating expense lines. Adjusted EBITDA of $36 million in Q123 represented a 29% margin, and was ahead of plan due to higher revenue as well as a moderated pace of hiring, which we expect to accelerate in the second quarter. Net operating cash flow was $21 million, primarily driven by higher year-over-year net income and stronger cash collections. We ended the quarter with nearly $286 million in cash on hand and continue to have zero debt outstanding. Turning to guidance, we expect second quarter revenue in the range of $131 to $135 million, which implies year-over-year growth of 21% at the midpoint. The sequential growth implied by our revenue guidance reflects a tough comparison with the second quarter of 2022 when large new advertisers significantly ramped their revenue contribution and when the standard programmatic price bifurcation was fully rolled out. We expect second quarter adjusted EBITDA in the range of $37 to $39 million, which implies a 29% margin at the midpoint. For the second quarter, we expect stock-based compensation to range between $14 and $16 million, and weighted average diluted shares outstanding to range between 171 and 173 million shares. For full year 2023 guidance, we expect revenue in the range of $557 to $569 million, which implies year-over-year growth of 24% at the midpoint. And we expect adjusted EBITDA in the range of $171 to $179 million, which implies a 31% margin at the midpoint. We have raised full-year revenue and adjusted EBITDA guidance due to a stronger first quarter performance and an expectation that the positive business trends, particularly measurement, will continue. We expect full-year adjusted EBITDA margins of 31% based on the strength in first quarter profitability while reflecting our plan to continue to invest in hiring engineering and sales talent, enhancing machine learning capabilities, and further building out the IT infrastructure to support our growth. On a sequential basis, we expect the third quarter to represent a little less than 25% of full-year revenue, and we expect third quarter adjusted EBITDA margins to remain consistent with the second quarter. To close, we delivered a strong first quarter with double-digit revenue growth across all of our business lines and are focused on successfully executing against our plan for the rest of the year. And with that, we will open the line for questions. Operator, please go ahead.
Operator
Thank you. If you would like to ask a question, please press star 1 on your telephone keypad. A confirmation tone will indicate your line is in the question queue. You may press star 2 if you would like to remove your question from the queue. And for participants using speaker equipment, it may be necessary to pick up your handset before pressing the star keys. Our first question is from Michael Graham with Canaccord Genuity. Please proceed.
Michael Graham
Hey, congrats on the strong numbers. I just wanted to focus in on the international measurement growth for a minute because the last couple of quarters, that growth rate had really slowed down, and you accelerated to 26% growth this quarter against a tough comp in Q1 of last year of 40% growth. So I really just wanted to hear a little bit more about how you're achieving that sort of growth rebound internationally.
Mark Zagorski
Thanks, Michael, for the question. And we're really pleased with the progress that we've made in the markets outside the U.S. EMEA grew at 23% year-over-year for the quarter, APAC at 31%. And I think a lot of that had to do with something we've been talking about for the last few quarters, which is our continued investment in commercial resources outside of the U.S., And then a commercial reorg, which we started at the beginning of last year, which really started to close up at the end of the year. Those two things gave us a lot of confidence in the fact that we had the right people in the right places outside the U.S., and they had the right mission in front of them. Because of that, we saw a really strong pipeline coming out of Q4, which we mentioned earlier this year on our first call. That pipeline really came to fruition.
Michael
and Q1.
Mark Zagorski
So it was a lot of hard work by our teams. It was a lot of investment in people and in the planning, and ultimately it turned into just better sales, better sales, better pipeline, and that pipeline came to bear in Q1 of this year.
Michael Graham
Okay. Thanks for the call, Mark.
Operator
Our next question is from Arun Bhatta with William Blair. Please proceed.
William Blair
Hey guys, thanks and congrats on the strong quarter here. I noticed you were optimistic. You raised your full year guide, obviously, and you called out, I think, optimism on the measurement side of the business. One, can you just talk about what makes you confident in raising guidance for the year and what are you seeing in measurements specifically that's giving you, that's making you optimistic on the rest of the year here?
Mark Zagorski
Thanks for the question, Arjun. You know, we've always said that kind of measurement and the core measurement business was the backbone or the workhorse of the business. And a lot of our success there is related to what I mentioned to the question from Michael, you know, investment in sales resources and sales planning and reorganization of that sales team. Those are the guys that go out, close the deals, and measurement, as you said, is kind of core to spinning that flywheel, like they say, of upselling into programmatic, upselling into performance solutions. So when that base hits, it's great news for us for the year. I wouldn't totally equate it to a SaaS business where they get a big chunk of their meat up front and they know what the years are going to look like, but we know measurement customers When they buy in, they buy in and stick, and that sticks with their spend throughout the year. So I think we've got confidence in the fact that those customers that come in are measurement customers. Those dollars are not as fluid as activation dollars, which tend to move with programmatic spend. So that gives us a good amount of confidence that, yeah, we're in the right place where we need to be to raise the guide for the year, and we've got a good basis from which to do so.
William Blair
Perfect. Thanks, Mark. That's very helpful. And then I wanted to touch on attention. It seems like that product is starting to get some good traction here. Are we crossing the chasm with that solution? And maybe just would love to hear how you think the pre-bid capabilities that you launched with universal attention might help advance some of the adoption of this attention solution here.
Mark Zagorski
Yeah, I think it's a great question, and we do talk a lot about attention. I think, I don't know if we call it a chasm, but let's call it a mountain to climb. And, you know, we've started making our way up that mountain, and I think we're getting some good traction. You know, we saw two times the volumes of tests year over year, two times the volume of revenue in Q1 year over year, three times the volume of campaign blueprints and attentions. So we're getting there, right? The scale is getting there. I think a big part of it, and I think we also mentioned this on our last call, was we love the value prop of having pre-bid and post-bid work together. We've seen the power of that with our core verification solutions. We've seen the power of that with ABS working with measurement. And I think the ability for us to kind of grow the attention category as a whole I think will also benefit from having pre-bid and post-bid working together. So I think we always say it's still early days, even though it's been a long period of early days, but as the industry catches up with standardization and those things get locked in, and even as competition gets greater, I think competition is okay in this space because it actually kind of justifies the idea that attention matters and attention matters to advertisers we're going to see more traction there. So we love the introduction of a pre-bid solution. We think that's going to help kind of drive that optimization cycle. And this is just the beginning for pre-bid on attention. We think there's an evolution of that to an even more powerful solution on the pre-bid side, the same way we evolved standard brand safety and brand suitability into authentic brand suitability, which is arguably now still one of our most powerful products. I think we've got a long way to go, but we're taking those steps one by one, and the introduction of really the first scaled optimization pre-bid attention segment out there is a great step towards that.
William Blair
Thank you, Mark, and congrats again on the quarter, guys.
Operator
Thank you. Our next question is from Justin Patterson with KeyBank Capital Markets. Please proceed.
Justin Patterson
Great. Thank you. Two questions. I'll do the first and then follow up after. I just wanted to touch on ABS. You know, it's been your biggest solution, five years in launch and now still growing 56%. I think most of that was driven by volume this quarter. Just talk about how you see that volume expansion potential from existing customers going forward. And then I'll there and go to my follow-up after.
Mark Zagorski
Yeah. ABS continues to be a real powerhouse for us. As you noted, a majority of the growth that we had from ABS, the revenue growth, came from existing customers this quarter. 94 of our top 100 customers are using ABS right now in Q1. What that shows to me is that even with pretty significant penetration, our top 100 customers. To be able to grow at a 56% year-over-year growth rate means ABS works. Clients are using it in more markets. They're using it across more brands. And, you know, it's still got legs. So we continue to lead with our programmatic solutions in many pitches. We continue to have opportunities below the top 100 clients to continue to grow and, you know, we think ABS is going to continue to drive growth for us, even after, as we noted, price bifurcation, in which we raised the price on video, we saw very little friction from that price increase. So it not only shows the utility of the product, but the value that we're creating for advertisers to show that growth.
Justin Patterson
Great, thanks. And then for the second question, I wanted to touch on social measurement a bit more. Meta and TikTok almost achieving their 22 revenue contribution in just the first quarters. Very impressive. Would love to hear more about just how you're thinking about social progressing in the year and whether that could actually turn into a channel that brings net new advertisers into the broader DV ecosystem. Thank you.
Agil
Yeah, Justin, I'll take this one. So just to clarify, it is TikTok revenue that achieved all of 22 revenue in Q1-23. Meta is a much larger base, and we've had products with Meta for a much longer period of time. But your points around social are the right ones. We were very pleased with how strong the uptake is on the TikTok product. It is now already our third largest social platform. It remains small if you compare it to Meta and YouTube, but it is an indicator that our products are really resonating in the social channel. Social is about 38% of our measurement business in the quarter, and that was up from where it was last year. So we feel very strongly that we will continue to see traction on the social as we continue to put more products out there and go into new markets.
Mark Zagorski
And I'll throw one other point there too, Justin, which is, you know, you mentioned, does it have the ability to attract new customers? You know, in Q1 it certainly did, because 40% of our revenue growth was from new customers in the quarter, in social measurement growth, that is, was from new customers. And, you know, It was folks like Mars, Paramount, Bumble, BuyerStore, ConAgra, big brands who are activating across social. TikTok is certainly helping on that front because people are moving there. So, again, social is a place that we're going to feel very comfortable, continue to focus on growth there, and we'll continue to invest as well.
spk00
Thank you both.
Operator
Our next question is from Andrew Boone with JMP Securities. Please proceed.
Andrew Boone
Hi, thanks for taking my questions. Mark, you took the EBITDA guide up a point, and earlier you mentioned the investments that you made last year in international. I guess my question is, are you now at a scale with resources that you can let more upside flow through to EBITDA and profitability? And then for my second, You guys mentioned 45% of the top 700 clients are using less than half of the key products in 2022. Can you just talk about that upsell cycle? What's left that you guys really want to push as you think about 23 and 24? What do you think is the low-hanging fruit from here on the upsell? Thanks so much.
Mark Zagorski
Sure. I'll take the second half of that question and let Nicola take the first half. Anything that says EBITDA, I put that to the CFO. He's much better with those numbers. But when we look at the upsell cycle, and you're right, we've got still a pretty decent amount of product upsells to make across the board. We talk about ABS. Although ABS has some pretty high penetration in our top 100 clients, we've still got a lot of room in our next several hundred to go after. And that's always going to be our first go-to when we look at the upsell cycle is, move anybody who's using standard brand safety or brand suitability to AES, right? A, so I think that's a big one. The second one is when we look at social. Social measurement continues to be a great growth engine for us, but we look at social as a separate category. So just because you're doing measurement for us in the open web or even using programmatic on open web doesn't mean you're a client that's using us for measurement on social. So when we think of like, First two things we're going to walk into a customer to do and we're going to upsell is going to be AVS and then social. And I think we've got room on both of those products as we look at the potential upsell. Plus, we know that they're both great mortgage drivers for us, great growth drivers for us, particularly in opportunities outside the U.S.
Agil
Yeah, in terms of EBITDA margins and expectations and how we think about it for the future of the business, you know, we did have a strong first quarter around profitability. I think that the numbers that make us feel very strongly that, you know, we have a business that can scale is really where the investments were. So we were able to essentially have virtually year-on-year flat on sales and marketing and G&A. And we've spoken about the fact that we've already invested in SG&A in prior years and And in a quarter where, for example, you see 26% growth in international, it's not as though we have to invest additional resources to achieve that growth. So there is inherent scale coming from those two lines as we become a larger company. However, we are continuing to choose to invest in R&D. That is one area where you will see growth in investments year on year, and that is specifically around data scientists to allow us to go deeper into AI machine learning investments. These are not brand-new investments. We've been doing it for many years already, but the opportunity there to continue to invest is available to us, and we're going to do it because it's going to accelerate our product roadmap. So it's a long way to say we are choosing to continue to invest. Our EBITDA margin is still very healthy, but we're already seeing the benefits of the scaling of our business in sales and marketing and G&A. Thank you. Sure.
Operator
Our next question is from Mark Murphy with JP Morgan. Please proceed.
Mark Murphy
Thank you so much, and I'll add my congrats. Mark, I wanted to ask you, the win rates remain very high. Can you refresh us on the role of accreditations through that lens just to help you win business? And how wide is the gap today in the accreditations between DoubleVerify And if we compare that to the number two and number three competitors, then I have a quick follow-up.
Mark Zagorski
Yeah, look, accreditations are definitely part of the matrix of elements that go into the decision process for an advertiser. It's an important one, as is customer service and customer support, as is pricing. But probably still the most important one is the performance of the platforms. And that's where we continue to lean in. That's why technology expense is such an important one for us to keep investing in. Because when those platforms go head-to-head, we've said this time and again, whichever platform delivers the highest ROI by filtering out the most fraud, by creating the greatest level of brand suitability, granularity, is the one that's going to win. And I think that's driving a great win ratio for us. But when it does come to accreditations, I mean, We look at the number across the multiple different organizations that are out there. Our best estimate is we're anywhere from 50% more different accreditations to almost double depending on it. It's hard to find. There's lots of different places where people have accreditations in different countries, but we certainly outpace our competitors by a significant amount in that space.
Mark Murphy
Okay, and then as a quick follow-up, What are you discovering in terms of viewability in the CTV realm? What I mean is, are there fewer issues because in some cases you have much larger screens or are you finding that there are more issues because you can encounter buffering or ad placement problems or some of the ad skipping capabilities of those platforms?