# Market Share

## Worldwide Digital Advertising Software Market Shares, 2017: Despite Intense M&A Activity, Still a Fragmented Market

Karsten Weide

## EXECUTIVE SUMMARY

The most interesting finding that has come out of this study, considering the ongoing intense merger  
and acquisition activity in the digital advertising software segment, is how fragmented it still is. Even  
the top 15 vendors represent not even 40% of the market, with a multitude of small, specialized  
vendors with limited revenue making up the rest.

The two top vendor categories are demand-side platforms (DSPs) or DSP-like offers — Criteo,  
MediaMath, AppNexus, AdRoll, The Trade Desk, dataxu, and Centro — and one-stop shops — Google,  
Adobe, and Oath (AOL and Yahoo!). These are followed by supply-side platforms (SSPs) — OpenX,  
Rubicon Project, and PubMatic — with revenue volumes about half the size of that of the DSPs.

The overall market for advertising software grew at 38% year on year, from $9.2 billion in 2016 to  
$12.7 billion in 2017. At these spending levels, advertising technology sales stood for 4.7% of total ad  
sales (2017), up from 4.0% (2016). We expect this share to grow to 7.8% by 2022 as the industry's  
push for advertising automation continues and the overall volume of spending on advertising  
continues. The transition from traditional TV advertising to digital video advertising, specifically  
connected TV advertising, will be the one major driver of future growth. The other characteristic of the  
market is the ongoing intense merger and acquisition activity, which will, however, not lead to major  
consolidation in the ad tech sector yet — as opposed to publishers and the media segment.

"The ad tech segment is still very fragmented," said Karsten Weide, VP of Media and Entertainment,  
IDC. "This means there is a lot of opportunity for acquisitions, but also for growth."

## ADVICE FOR TECHNOLOGY SUPPLIERS

- Buyers will continue to shift media purchases from traditional channels into ones optimized by

- A primary driver is the adoption of programmatic platforms (demand-side platforms, supply 
side platforms, data management platforms, ad exchanges, and dynamic creative  
optimization), which will see the fastest growth at a CAGR of around 26%. Social media  
advertising will grow as fast. Ad servers and search engine marketing (SEM) platforms, being  
fairly mature, will see the slowest growth (in the low-double-digit CAGRs). Attribution, because  
of the difficulty of implementing it, will also see slower growth.

- Most of these platforms are fueled by data. Expect more difficulty using data due to increasing  
privacy protection initiatives. This in turn could decrease advertising ROI, which could  
translate into a minor slowdown in ad tech sales.

- The application of artificial intelligence and machine learning may, however, easily more than  
make up for that decline in ROI.

- One major driver of change is the transition from traditional (linear) TV to digital video. Users  
are continuing to shift their video consumption from traditional TV to digital alternatives. While  
this shift has been steady but slow in the past, there are signs for an acceleration of that trend.

- The Google and Facebook duopoly will continue its reign. Buyers are growing increasingly  
wary of the growing might of the duopoly. For that reason, some of them have begun to shift  
budgets into Amazon. However, Amazon's ad sales are probably still only 1/20 of the size of  
Google. This means that, even if sales develop in the most favorable way for Amazon, it would  
still need four to five years to catch up to Google and Facebook.

- The growth of Google and Facebook — but also of tier 2 players such as Amazon, Verizon's  
Oath (the combination of AOL and Yahoo!), AT&T, Comcast, and Adobe — means that we will  
see a phase of continuing mergers and acquisitions, reducing the number of smaller  
independent vendors. Even Adobe may eventually be acquired (e.g., by Microsoft) or perhaps  
Facebook.

- The duopoly and the consolidation of the independent ecosystem mar independent vendors'  
growth prospects. They can still expect growth but perhaps at lower-than-segment rates.  
Slower growth and the reduction in the number of independent vendors, more integration  
between platforms, and buyers pushing for more market transparency will all increase  
competition for them.

## MARKET SHARE

The most interesting finding that has come out of this study, considering the ongoing intense merger  
and acquisition activity in the digital advertising software segment, is how fragmented it still is. Even  
the top 15 vendors represent not even 40%, with a multitude of small, specialized vendors with limited  
revenue making up the rest. And even the biggest vendor does not crack the 10%-of-market threshold.  
Figure 2 and Table 1 outline these top vendors.

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**FIGURE 2**

**Worldwide Digital Advertising Software Revenue Share by Top 15 Vendors, 2017**  
!

Note: This data excludes data vendors.

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**TABLE 1**

**Worldwide Digital Advertising Software Revenue by Top 15 Vendors, 2016**  
**and 2017**

|  | 2016 Revenue ($M) | 2017 Revenue ($M) | 2017 Share(%) | 2016-2017 Growth(%) |
| --- | --- | --- | --- | --- |
| Criteo | 730.2 | 941.1 | 7.4 | 28.9 |
| Google | 658.0 | 832.0 | 6.5 | 26.4 |
| MediaMath | 415.1 | 498.1 | 3.9 | 20.0 |
| Adobe | 295.0 | 383.0 | 3.0 | 29.8 |
| AppNexus | 258.0 | 375.0 | 2.9 | 45.3 |
| AdRoll | 300.0 | 310.0 | 2.4 | 3.3 |
| The Trade Desk | 202.9 | 260.0 | 2.0 | 28.1 |
| dataxu | 200.5 | 236.0 | 1.9 | 17.7 |
| Centro | 152.0 | 190.0 | 1.5 | 25.0 |
| OpenX | 143.3 | 172.0 | 1.3 | 20.0 |
| Oath | 104.0 | 156.0 | 1.2 | 50.0 |
| Rubicon Project | 278.0 | 155.5 | 1.2 | -44.1 |
| Neustar | 105.1 | 145.0 | 1.1 | 38.0 |
| PubMatic | 89.7 | 123.8 | 1.0 | 38.0 |
| Adform | 83.0 | 112.0 | 0.9 | 34.9 |
| Other | 5,220.1 | 7,854.6 | 61.6 | 50.5 |
| Total | 9,234.8 | 12,744.0 | 100.0 | 38.0 |

Note: This data excludes data vendors.

The two top vendor categories are demand-side platforms or DSP-like offers — Criteo, MediaMath,  
AppNexus, AdRoll, The Trade Desk, dataxu, and Centro — and one-stop shops — Google, Adobe, and  
Oath (AOL and Yahoo!). These are followed by supply-side platforms — OpenX, Rubicon Project, and  
PubMatic — with revenue volumes about half the size of that of the DSPs.

Criteo is the top vendor, followed by Google, and each has market shares above 5%. A little farther  
behind is MediaMath, with an almost 4% share, after which — still a little more removed — begins the  
long tail with Adobe.

The overall market grew at 38% year on year, from $9.2 billion in 2016 to $12.7 billion in 2017. Top  
vendors' growth rates tend to be smaller due to their greater size and maturity. At these spending  
levels, advertising technology sales stood for 4.7% of total ad sales (2017) and 4.0% (2016). We  
expect this share to grow to 7.8% by 2022 as the industry's push for advertising automation continues.

Almost all vendors grew at or around market growth rates. Rubicon Project is the only vendor that lost  
revenue, and significantly so, because the company was slow to adapt to two key trends — the shift  
from desktop to mobile advertising (in particular to mobile app-based advertising) and the introduction  
of header bidding.

The consolidation of media spending (not ad tech spending) on the walled gardens — Google,  
Facebook, Oath, and Twitter — has two consequences. One, it increases competitive pressure on  
independent ad tech vendor as this diverts spending on tech in the independent ecosystem. And two,  
overall spending on ad tech — on independent vendors and walled garden offers — decreases because  
much ad technology that comes to bear in the walled gardens is not sold as standalone offers but is  
priced into the media purchase.

## WHO SHAPED THE YEAR

This Excerpt was prepared for Criteo but also included the following vendors: MediaMath, Adobe,  
AppNexus, The Trade Desk and others.

Companies that were some of the top movers in the advertising technology segment last year are  
discussed in the sections that follow.

Criteo remained the leading ad tech provider worldwide with a 7.4% market share in 2017. It is  
interesting that Criteo's mindshare in the industry does not match its size, especially in the United  
States. The company continued to grow significantly last year; but the impact of increased privacy  
constraints in Apple's Safari browser — affecting the company's ability to target the delivery of ads via  
its core retargeting product — only hit the company very late in the year. More than 90% of the  
company's total business still depends on its retargeting product, and in 2017, about 17% of the total  
was Safari-based retargeting business. This explains why — given the previously mentioned greater  
privacy protections in Safari — the company had originally estimated 2018 annual growth to be 3–8%  
(down from 28% in 2017). But it lowered that forecast to between -1% and 1% in its 2Q18 earnings  
call, owed to the introduction of a subscription-based pricing model, which leads to a temporary  
revenue shortfall (as has been the case for other transitioning companies). It presumably introduced  
the subscription-based model precisely to dampen the impact of short-term events such as Apple's  
privacy move last year, but the price it has to pay is transitional pain.

Looking forward, Criteo has proven remarkably resilient. The European Union's General Data Protection  
Regulation (GDPR), which came into effect in May 2018 and was seen as potentially further affecting  
Criteo's retargeting business, has had no significant impact on them so far (September 2018). Criteo's  
future will depend on its ability to address the issues potentially affecting retargeting as well as its ability  
to continue to grow its business beyond retargeting.

## MARKET CONTEXT

## Significant Market Developments

Overall, the digital advertising software segment was shaped by six trends in 2017:

- Worldwide spending on digital advertising (e.g., media purchases) continued to rapidly grow  
by 19% from $228.4 billion in 2016 to $272.5 billion in 2017, increasing the volume of  
advertising that needs to be transacted and thereby growing spending on advertising  
technology.

- Intense efforts on advertising automation continue, benefiting programmatic advertising  
technology vendors.

- Greater awareness for the need of privacy protection began to dampen programmatic growth  
but has in most cases had no material impact on business. (But note the impact of Apple's  
privacy protection measures in Safari introduced last year on Criteo, as mentioned  
previously.).

- As most new digital advertising spending went to Google and Facebook, most of whose ad  
technology is priced into media purchases (e.g., is "free"), ad tech grew slower than it would  
otherwise have. This has led to a more difficult business climate for independent vendors and  
increasing competitive pressure among them.

- Intense merger and acquisition activity continued.

- The shift of advertising budgets from traditional TV into video accelerated creating opportunity  
— especially in connected TV — for those that provide relevant technology and threats for those  
that don't.

All vendor numbers are based on vendor revenue estimates from Worldwide Advertising Software  
Forecast, 2018–2022 (IDC #US43940218, June 2018). All vendor numbers are net revenue, excluding  
media sales and professional services. Estimated numbers are based on public filings, public company  
statements on revenue, acquisition valuations, and other considerations. This vendor market share  
document does not take into account data vendors as they are not technology vendors in the strict  
sense of the word, even if they were part of the underlying ad technology software forecast. It should  
be noted that a lot of advertising technology that comes to bear in transacting digital advertising is not  
payed for, but is priced into media sales, and is therefore not represented either in the advertising  
software forecast nor in this document.

IDC defines advertising software as any software program or platform that enables the business of  
advertising — specifically, media or advertising campaign planning, buying and selling advertising inventory, and ad operations (e.g., trafficking or physically inserting an ad into media, targeting an ad at  
specific demographics or individual users, automatically modifying an ad creative for better impact, and  
tracking or measuring and reporting on an advertising campaign). Ad software includes ad servers, ad  
exchanges, ad verification, attribution, data management platforms (DMPs), demand-side platforms  
(DSPs), dynamic creative optimization (DCO), search engine marketing (SEM), and social advertising  
and supply-side platforms (SSPs). Data vendors, while part of the advertising software taxonomy and the  
related forecast, are not included in this document since they do not offer advertising software in the strict  
sense of the word. Advertising software is typically a web-based, software-as-a-service (SaaS) platform  
but may also be a software locally installed on-premises.
