Company lists · Data refreshed September 2026

Top 25 Adtech platforms based in San Francisco, United States

Name: Adtech platforms based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 211 companies tracked

RevenueBase identified 211 adtech platforms headquartered in San Francisco, United States as of September 2026 and tracks 6,824 professional contacts across them, including 2,619 with verified work emails. New York is the largest hub.

This list covers adtech platforms headquartered in San Francisco, United States, 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 21, 2026.

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 21, 2026 86% judged on-target in blind review

211Companies

6,824Contacts tracked

2,619Verified emails

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The 25 largest adtech platforms based in San Francisco, United States

Ranked by team size

Top 25 of 211 adtech platforms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to adtech 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	Appsflyer	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,516 contacts →
	Indirect evidence “AppsFlyer is the Modern Marketing Cloud that helps businesses transform complex data into clarity and growth.” Source: RevenueBase Database · checked Sep 21, 2026
2	SKAI	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	551 contacts →
	Partial evidence “Skai is the leading omnichannel platform for commerce media, enabling brands and agencies to connect data, insights, and execution across the world’s largest publishers and…” Source: RevenueBase Database · checked Sep 21, 2026
3	Quantcast	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	491 contacts →
	Partial evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 21, 2026
4	Nextroll	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	320 contacts →
	Indirect evidence “NextRoll is a leading marketing technology company that empowers businesses to drive sustainable growth while building trusted connections with their audiences.” Source: RevenueBase Database · checked Sep 21, 2026
5	Tatari	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	310 contacts →
	Indirect evidence “Tatari is building the infrastructure to modernize TV advertising for Brands, Agencies, and Publishers.” Source: RevenueBase Database · checked Sep 21, 2026
6	SIFT	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	288 contacts →
	Partial evidence “Sift is the leading fraud prevention platform delivering digital trust to 700+ global brands, allowing them to grow confidently by stopping fraud while enabling excellence in…” Source: RevenueBase Database · checked Sep 21, 2026
7	HAUS	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	287 contacts →
	Partial evidence “Haus is the causal marketing platform leading brands trust to optimize billions in ad spend worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
8	Adroll	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	170 contacts →
	Partial evidence “AdRoll is a multi-channel advertising platform built for growth-minded marketers.” Source: RevenueBase Database · checked Sep 21, 2026
9	FYBER	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	128 contacts →
	Partial evidence “Fyber, part of Digital Turbine’s independent Mobile Growth Platform, develops innovative ad monetization solutions trusted by top mobile game and app publishers.” Source: RevenueBase Database · checked Sep 21, 2026
10	Publica By IAS	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	124 contacts →
	Indirect evidence “Publica is a leading demand agnostic CTV Ad Server.” Source: RevenueBase Database · checked Sep 21, 2026
11	JAMPP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	112 contacts →
	Partial evidence “Jampp is a programmatic advertising platform used by the most ambitious companies to accelerate their mobile businesses.” Source: RevenueBase Database · checked Sep 21, 2026
12	ZEDO	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	110 contacts →
	Indirect evidence “ZEDO, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
13	BILLO	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	88 contacts →
	Partial evidence “Billo is the first-of-its-kind creator marketing platform that turns brand-creator partnerships into a measurable growth channel.” Source: RevenueBase Database · checked Sep 21, 2026
14	Chartboost	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	75 contacts →
	Partial evidence “Chartboost is a leading in-app monetization and programmatic advertising platform, empowering app developers to monetize highly engaged audiences by connecting them directly with…” Source: RevenueBase Database · checked Sep 21, 2026
15	Vungle	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	59 contacts →
	Indirect evidence “Vungle is the trusted guide for growth and engagement, transforming how people discover and experience apps.” Source: RevenueBase Database · checked Sep 21, 2026
16	Lifestreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “LifeStreet makes in-app advertising work for the world’s biggest performance marketers.” Source: RevenueBase Database · checked Sep 21, 2026
17	Omneky	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	42 contacts →
	Indirect evidence “Omneky generates personalized ads that scale.” Source: RevenueBase Database · checked Sep 21, 2026
18	Adsgency AI	Indirect evidence	San Francisco, United StatesHQ checked Sep 21, 2026	11-50	41 contacts →
	Indirect evidence “Turn your customer data into actionable campaigns!” Source: RevenueBase Database · checked Sep 21, 2026
19	Taptica	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	41 contacts →
	Partial evidence “Taptica is a publicly-traded, global end-to-end mobile advertising platform that helps the world’s top brands reach their most valuable users with the broadest range of media…” Source: RevenueBase Database · checked Sep 21, 2026
20	Demand Local	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	34 contacts →
	Indirect evidence “Demand Local empowers Advertising & Marketing agencies in the Automotive, Legal, Financial, & CPG industries to scale and grow their businesses.” Source: RevenueBase Database · checked Sep 21, 2026
21	Tenjin	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Indirect evidence “Tenjin helps fast-growing mobile publishers scale with simple, powerful advertising measurement.” Source: RevenueBase Database · checked Sep 21, 2026
22	Admybrand	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	30 contacts →
	Partial evidence “ADmyBRAND started off as a DIY omnichannel advertising platform but evolved into AI & analytics-driven Web4.0 ad exchange for advertisements on outdoor media, Influencer, digital…” Source: RevenueBase Database · checked Sep 21, 2026
23	Spaceback	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	27 contacts →
	Indirect evidence “Spaceback is the global leader and creator of the Social Display and Social CTV advertising format.” Source: RevenueBase Database · checked Sep 21, 2026
24	Plotline	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “Plotline is the agentic customer engagement platform that gives every user their own AI marketer - one that reads each user's full story and decides what to send, when, or whether…” Source: RevenueBase Database · checked Sep 21, 2026
25	MESHA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Grow your revenue with mesha.” Source: RevenueBase Database · checked Sep 21, 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: adtech 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 adtech platforms.
Partial evidence: Its own public description names part of adtech platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name adtech 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 211 adtech platforms based in San Francisco, United States

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Adtech platforms based in San Francisco, United States at a glance

As of Sep 21, 2026

38.4%Verified-email coverage

32.3Average contacts per company

11-50Median size (employees)

303.8%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 211 companies.

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 adtech 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.
What qualifies: Companies headquartered in San Francisco, United States whose own description of what they do matches “adtech 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 adtech 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 adtech platforms, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
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, 2,619 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 21, 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.

Adtech platforms by metro in the United States

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 adtech 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 adtech platforms are there based in San Francisco, United States?

RevenueBase identified 211 adtech platforms headquartered in San Francisco, United States 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?

Appsflyer, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most adtech platforms?

New York leads with 641 headquartered companies, followed by San Francisco (211) and Los Angeles (182).

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 2,619 verified decision-maker contacts tracked across these 211 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 21, 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.