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Company lists · Data refreshed September 2026

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 769 companies tracked

RevenueBase identified 769 online advertising agencies headquartered in Los Angeles, United States as of September 2026 and tracks 4,175 professional contacts across them, including 1,123 with verified work emails. New York is the largest hub.

This list covers online 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
769Companies
4,175Contacts tracked
1,123Verified emails
Unlock all 769 companies Free signup · no credit card · 500 free credits

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

Ranked by team size
Top 25 of 769 online 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 online 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.
#CompanyHeadquartersEmployeesContacts
1
Coalition TechnologiesIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026201-500320

“Coalition Technologies is one of the leading SEO & web design agencies in the United States.”

Source: company website · checked Sep 5, 2026
2
AdmediaIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026201-500242

“AdMedia helps Agencies and Brands meet their KPIs and hit their ROI objectives.”

Source: company website · checked Sep 5, 2026
3
Gr0Indirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-200157

“At GR0, we are in the business of helping businesses.”

Source: company website · checked Sep 5, 2026
4
UnfoldIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-200126

“Attention is earned.”

Source: company website · checked Sep 5, 2026
5
HawksemIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-20080

“HawkSEM is a results-driven digital marketing agency with roots in paid search that date back more than a decade.”

Source: company website · checked Sep 5, 2026
6
Spinx DigitalIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5063

“We are digital craftsmen.”

Source: company website · checked Sep 5, 2026
7
Everservice Holdings, LLCIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026201-50060

“EverService is a global holdings company specializing in B2B professional services for companies of all sizes, helping them to grow and scale.”

Source: company website · checked Sep 5, 2026
8
Veritone ONEPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-20051

“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
9
PhenomenonIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-20048

“Phenomenon is now Human Standard.”

Source: company website · checked Sep 5, 2026
10
Global Digital OnlineStrong evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5046

“Established in 2015, Global Digital Online is a successful web development and online advertising company driven by a passion for growing businesses and maximizing our client's…”

Source: company website · checked Sep 5, 2026
11
Globalwide MediaIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-20043

“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
12
Social House, INCIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5040

“Social House, Inc.® is a Digital Growth Agency.”

Source: company website · checked Sep 5, 2026
13
Atak InteractiveIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5031

“At ATAK, we never confuse hope with a plan.”

Source: company website · checked Sep 5, 2026
14
LAD SolutionsPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5030

“LAD Solutions is a nationally recognized, full service digital agency based in Los Angeles that specializes in Search Engine Optimization (SEO), Paid Advertising (PPC) and Web…”

Source: company website · checked Sep 5, 2026
15
Skylite WEBIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5030

“SkyLite Web is one of the most trusted and ethical SEO company in USA.”

Source: company website · checked Sep 5, 2026
16
Intrepid DigitalIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5029

“Intrepid Digital is an enterprise digital marketing agency building bespoke strategies for global tier-one organizations and growth-oriented enterprises.”

Source: company website · checked Sep 5, 2026
17
Yael ConsultingPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 20261-1028

“Yael Consulting offers online marketing services to businesses of all sizes, to help you increase sales and profits online.”

Source: company website · checked Sep 5, 2026
18
Teez AgencyIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5026

“Teez Agency is a Social Media Marketing firm located in Canoga Park, CA.”

Source: company website · checked Sep 5, 2026
19
Caledon VirtualIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5023

“Caledon Virtual is an award-winning full-service digital marketing agency founded in 2007 by J.”

Source: company website · checked Sep 5, 2026
20
W4Indirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202651-20022

“W4 LLC was acquired by Digital Media Solutions on July 1, 2018.”

Source: company website · checked Sep 5, 2026
21
ImforzaIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5022

“What is imFORZA?”

Source: company website · checked Sep 5, 2026
22
Ventrix AdvertisingPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5022

“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
23
Sunlight Media LLC Digital Marketing Services LOS AngelesPartial evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 20261-1020

“We are a web design & mobile app development firm with an extraordinary marketing talent and the motivation and passion for helping brands and companies get discovered online.”

Source: company website · checked Sep 5, 2026
24
Blue Wing ADSIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5019

“At Blue Wing Ads, we create and run display ad campaigns for our partner companies with no upfront cost or risk.”

Source: company website · checked Sep 5, 2026
25
Outlier Creative AgencyIndirect evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 202611-5017

“We create powerful legal brands.”

Source: company website · checked Sep 5, 2026

Showing 25 of 769 online 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 1,123 reachable decision-makers.

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

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 1111 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
511
11-50
215
51-200
26
201-500
12
501-1,000
2
1,001-5,000
1
10001+
1

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 769 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 online 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 “online 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 online 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, 1,123 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.

Online advertising agencies by metro in the United States

Frequently asked

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

RevenueBase identified 769 online 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?

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

Which city has the most online advertising agencies?

New York leads with 1111 headquartered companies, followed by Los Angeles (769) and Miami (613).

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 1,123 verified decision-maker contacts tracked across these 769 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 769 online advertising agencies based in Los Angeles, United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · Online advertising agencies in United States · All United States lists · All Online 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.

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