Company lists · Data refreshed September 2026

Top 25 Search advertising platforms worldwide

Name: Search advertising platforms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 9,234 companies tracked

RevenueBase identified 9,234 search advertising platforms worldwide as of September 2026 and tracks 77,173 professional contacts across them, including 20,340 with verified work emails. The United States is the largest market and London the largest hub.

This list covers search advertising platforms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for search advertising platforms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

9,234Companies

77,173Contacts tracked

20,340Verified emails

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The 25 largest search advertising platforms worldwide

Ranked by team size

Top 25 of 9,234 search advertising platforms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to search advertising platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	The Trade Desk	Indirect evidence	Ventura, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,307 contacts →
	Indirect evidence “It's more than just clicks.” Source: RevenueBase Database · checked Sep 29, 2026
2	media.net	Strong evidence	Dubai, United Arab EmiratesHQ checked Sep 29, 2026	1,001-5,000	2,011 contacts →
	Strong evidence “Media.net is an independent advertising technology platform that helps publishers, advertisers, and agencies achieve measurable outcomes across all formats and mediums.” Source: RevenueBase Database · checked Sep 29, 2026
3	Taboola	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,979 contacts →
	Strong evidence “Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Source: RevenueBase Database · checked Sep 29, 2026
4	TEADS	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,789 contacts →
	Strong evidence “Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Source: RevenueBase Database · checked Sep 29, 2026
5	Inmobi Advertising	Strong evidence	Bangalore, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,311 contacts →
	Strong evidence “InMobi Advertising is a leading global programmatic platform specializing in mobile-first solutions that drive customer growth.” Source: RevenueBase Database · checked Sep 29, 2026
6	Pubmatic	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 29, 2026	501-1,000	1,297 contacts →
	Partial evidence “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: RevenueBase Database · checked Sep 29, 2026
7	Mediaocean	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,050 contacts →
	Partial evidence “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: RevenueBase Database · checked Sep 29, 2026
8	Adform	Partial evidence	Copenhagen, DenmarkHQ checked Sep 29, 2026	501-1,000	847 contacts →
	Partial evidence “Adform is the most powerful and safe media buying platform in the world.” Source: RevenueBase Database · checked Sep 29, 2026
9	Equativ	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	501-1,000	705 contacts →
	Partial evidence “Equativ is a leading independent media platform that empowers advertisers and publishers to achieve real outcomes across the entire digital ecosystem.” Source: RevenueBase Database · checked Sep 29, 2026
10	MGID	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	501-1,000	568 contacts →
	Strong evidence “MGID is a global advertising platform helping brands and publishers succeed on the open web with performance-driven, AI-powered native solutions.” Source: RevenueBase Database · checked Sep 29, 2026
11	Natural Intelligence	Indirect evidence	Tel-aviv, IsraelHQ checked Sep 29, 2026	501-1,000	558 contacts →
	Indirect evidence “Natural Intelligence (est.” Source: RevenueBase Database · checked Sep 29, 2026
12	BIG ADS	Partial evidence	Sydney, AustraliaHQ checked Sep 29, 2026	n/a	409 contacts →
	Partial evidence “Big Ads has been providing digital ad-tech solutions for 3 years with great success thanks to the release of Buddy, an ad-tech platform which produces rich media creative tags to…” Source: RevenueBase Database · checked Sep 29, 2026
13	Localedge	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 29, 2026	501-1,000	383 contacts →
	Partial evidence “LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.” Source: RevenueBase Database · checked Sep 29, 2026
14	Yektanet یکتانت	Partial evidence	Tehran, IranHQ checked Sep 29, 2026	201-500	375 contacts →
	Partial evidence “YEKTANET is the biggest and most advanced online advertising network in Iran serving over 25 million unique users with 5 billion impressions per month.” Source: RevenueBase Database · checked Sep 29, 2026
15	Vertoz	Partial evidence	Mumbai, IndiaHQ checked Sep 29, 2026	201-500	322 contacts →
	Partial evidence “Vertoz (NSE: VERTOZ) is a global AI‑led digital advertising ecosystem, where strategies and execution are engineered for outcomes.” Source: RevenueBase Database · checked Sep 29, 2026
16	System1	Partial evidence	Marina Del Rey, CA, United StatesHQ checked Sep 29, 2026	201-500	302 contacts →
	Partial evidence “System1 (NYSE: SST) operates several flagship brands across multiple consumer verticals, including shopping, travel and search, and a best-in-class customer acquisition and…” Source: RevenueBase Database · checked Sep 29, 2026
17	advertising.com	Partial evidence	United StatesHQ checked Sep 29, 2026	n/a	297 contacts →
	Partial evidence “Advertising.com brings advanced programmatic solutions to companies with large user bases, helping them unlock new revenue streams, strengthen user loyalty, and deliver high-value…” Source: RevenueBase Database · checked Sep 29, 2026
18	Marin Software	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 29, 2026	201-500	284 contacts →
	Indirect evidence “Marin was acquired by Trilogy / ESW Capital in 2025.” Source: RevenueBase Database · checked Sep 29, 2026
19	W3era WEB Technology PVT LTD	Indirect evidence	Jaipur, IndiaHQ checked Sep 29, 2026	201-500	281 contacts →
	Indirect evidence “Most businesses don't struggle because they lack effort.” Source: RevenueBase Database · checked Sep 29, 2026
20	Admedia	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	201-500	242 contacts →
	Indirect evidence “AdMedia helps Agencies and Brands meet their KPIs and hit their ROI objectives.” Source: RevenueBase Database · checked Sep 29, 2026
21	Admarketplace	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	232 contacts →
	Strong evidence “adMarketplace is the largest global marketplace for Native Search advertising.” Source: RevenueBase Database · checked Sep 29, 2026
22	Artox Media Digital Group Amdg	Indirect evidence	Минск, BelarusHQ checked Sep 29, 2026	51-200	231 contacts →
	Indirect evidence “ARTOX media – digital-агентство с офисами в Москве и Минске, предоставляющее полный комплекс услуг для успешного развития и продвижения вашего бизнеса в интернете.” Source: RevenueBase Database · checked Sep 29, 2026
23	Dollarbird	Indirect evidence	Mysore, IndiaHQ checked Sep 29, 2026	201-500	221 contacts →
	Indirect evidence “Dollarbird is an emerging leader of online media operations.” Source: RevenueBase Database · checked Sep 29, 2026
24	Elocal	Partial evidence	Conshohocken, PA, United StatesHQ checked Sep 29, 2026	51-200	204 contacts →
	Partial evidence “eLocal, part of HomeServe Plc, global leader in the home services industry, is a fast-growing and highly profitable national leader in pay-for-performance digital advertising.” Source: RevenueBase Database · checked Sep 29, 2026
25	Townsquare Ignite	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	199 contacts →
	Strong evidence “Townsquare Ignite is a customer-centric, data-driven technology provider of cross-platform advertising solutions including programmatic, search, marketing and client services.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: search advertising platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names search advertising platforms.
Partial evidence: Its own public description names part of search advertising platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name search advertising platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 9,234 search advertising platforms worldwide

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Search advertising platforms worldwide at a glance

As of Sep 29, 2026

26.4%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

6,037

11-50

2,408

51-200

536

201-500

157

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among search advertising platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for search advertising platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “search advertising platforms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names search advertising platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among search advertising platforms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 20,340 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Search advertising platforms by location

60 lists · largest first

Every Search advertising platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names search advertising platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many search advertising platforms are there worldwide?

RevenueBase identified 9,234 search advertising platforms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

The Trade Desk, headquartered in Ventura, tops this list with the largest team on record.

Which country has the most search advertising platforms?

The United States leads with 1,639 companies, followed by India (883) and the United Kingdom (442). Every search advertising platforms list by country and city is linked on this page.

Which city has the most search advertising platforms?

London leads with 176 headquartered companies, followed by New York (100) and Sao Paulo (91).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 20,340 verified decision-maker contacts tracked across these 9,234 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.