Company lists · Data refreshed September 2026

Top 25 Programmatic advertising agencies based in Los Angeles, United States

Name: Programmatic advertising agencies based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 143 companies tracked

RevenueBase identified 143 programmatic advertising agencies headquartered in Los Angeles, United States as of September 2026 and tracks 2,631 professional contacts across them, including 960 with verified work emails. New York is the largest hub.

This list covers programmatic advertising agencies headquartered in Los Angeles, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

143Companies

2,631Contacts tracked

960Verified emails

Explore all 143 companies → Free signup · no credit card · 500 free credits

The 25 largest programmatic advertising agencies based in Los Angeles, United States

Ranked by team size

Top 25 of 143 programmatic advertising agencies based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names programmatic advertising agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	MGIDPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	501-1,000	568
	“MGID is a global advertising platform helping brands and publishers succeed on the open web with performance-driven, AI-powered native solutions.” Source: company website · checked Sep 5, 2026
2	AdmediaIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	201-500	242
	“AdMedia helps Agencies and Brands meet their KPIs and hit their ROI objectives.” Source: company website · checked Sep 5, 2026
3	USIMIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	218
	“USIM is a full-service media agency delivering innovative, data-driven strategies to navigate today’s evolving media landscape.” Source: company website · checked Sep 5, 2026
4	Target Media PartnersPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	501-1,000	197
	“Target Media Partners (TMP) is dedicated to helping auto dealerships and other SMBs grow their business through our mix of digital advertising solutions, and we are the only media…” Source: company website · checked Sep 5, 2026
5	Cannella Media DTCIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	96
	“Cannella Media: Drive Profitable Response.” Source: company website · checked Sep 5, 2026
6	Hawthorne AdvertisingPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	95
	“Hawthorne Advertising, a creative, analytics and technology-driven advertising agency specializing in strategic planning, creative development, production, media planning and…” Source: company website · checked Sep 5, 2026
7	FCA Fonseca Chan AssociatesIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	85
	“FCA is a full-service marketing agency based in Los Angeles.” Source: company website · checked Sep 5, 2026
8	CausalPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	71
	“Causal is a leading programmatic audience development and activation solution.” Source: company website · checked Sep 5, 2026
9	Exverus By BrainlabsIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	54
	“Exverus by Brainlabs is an independent media agency for culture-creating brands, combining brand and performance under one scientific brain.” Source: company website · checked Sep 5, 2026
10	GP GeneratePartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	53
	“Smart advertising campaigns begin with smart media choices.” Source: company website · checked Sep 5, 2026
11	Veritone ONEPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	51
	“Veritone One (formerly Veritone Media) is a full service agency creating native and traditional advertising for some of the world’s most recognizable brands.” Source: company website · checked Sep 5, 2026
12	MBMGIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	45
	“Founded in 2003, Milner Butcher Media Group is a full service media agency specializing in the planning, negotiation, and implementation of integrated media campaigns that are…” Source: company website · checked Sep 5, 2026
13	Globalwide MediaIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	43
	“GlobalWide Media (GWM), a leader in data-driven digital marketing, provides premium media solutions for the world’s leading brands and agencies.” Source: company website · checked Sep 5, 2026
14	Peak VenturesPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	27
	“At Peak Ventures, we build technology that makes digital advertising smarter, faster, and more effective.” Source: company website · checked Sep 5, 2026
15	True XPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	27
	“true[X] delivers effective advertising for on-demand, interactive media.” Source: company website · checked Sep 5, 2026
16	Giant MediaPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	22
	“Performance-focused video advertising technology and services.” Source: company website · checked Sep 5, 2026
17	Ventrix AdvertisingPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	22
	“Ventrix Advertising provides digital advertising and marketing to nationally known brands, by leveraging our own portfolio of proprietary media solutions and web properties.” Source: company website · checked Sep 5, 2026
18	Sabio HoldingsIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	21
	“Sabio Holdings (TSXV: SBIO, OTCQB: SABOF) is a technology and services leader in the fast-growing, ad-supported streaming space.” Source: company website · checked Sep 5, 2026
19	Brill MediaPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	20
	“Brill Media is a performance media buying agency helping brands and agencies scale across CTV/OTT, programmatic, digital audio, search, and social.” Source: company website · checked Sep 5, 2026
20	Anti Agency GroupIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	19
	“No Fluff.” Source: company website · checked Sep 5, 2026
21	10k AdvertisingPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	1-10	17
	“10K Advertising is a Los Angeles-Based Advertising Agency Specializing in Media Planning and Buying Nationwide.” Source: company website · checked Sep 5, 2026
22	Ceg, Creator's Entertainment Group. A Precise Influence CompanyPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	1-10	16
	“The New Era of Influence is Partnership Advertising.” Source: company website · checked Sep 5, 2026
23	Dial-Up MediaIndirect evidence	Los Angeles, United StatesHQ checked Sep 5, 2026	11-50	15
	“CTV is a complex ecosystem at the intersection of technology and old-school media.” Source: company website · checked Sep 5, 2026
24	Citizennet, A Condé Nast CompanyIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	14
	“CitizenNet, A Conde Nast company, specializes in workflows for sales and social media buying advertisers.” Source: company website · checked Sep 5, 2026
25	HypewellIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	11-50	14
	“We run ads” Source: company website · checked Sep 5, 2026

Showing 25 of 143 programmatic advertising agencies based in Los Angeles, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 960 reachable decision-makers.

Free signup · no credit card

See all 143 companies

Programmatic advertising agencies based in Los Angeles, United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

New YorkLargest hub · 411 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 143 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 programmatic advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Los Angeles, United States whose own description of what they do matches “programmatic advertising agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among programmatic advertising agencies, and records with no verified work email. Companies headquartered outside Los Angeles 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 an evidence 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, 960 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 5, 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.

Programmatic advertising agencies by metro in the United States

Frequently asked

How many programmatic advertising agencies are there based in Los Angeles, United States?

RevenueBase identified 143 programmatic advertising agencies headquartered in Los Angeles, 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?

MGID, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most programmatic advertising agencies?

New York leads with 411 headquartered companies, followed by Los Angeles (143) and Miami (102).

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 960 verified decision-maker contacts tracked across these 143 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 143 programmatic advertising agencies based in Los Angeles, United States. Start with a free account, no credit card.

Get the full list

Related lists

Programmatic advertising agencies by geography

Browse the directory

Browse: Companies home · Programmatic advertising agencies in United States · All United States lists · All Programmatic advertising agencies lists · New lists

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 SmartSearch, 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.