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Company lists · Data refreshed September 2026

Top 25 Online advertising agencies based in San Jose, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 83 companies tracked

RevenueBase identified 83 online advertising agencies headquartered in San Jose, United States as of September 2026 and tracks 381 professional contacts across them, including 67 with verified work emails. New York is the largest hub.

This list covers online advertising agencies headquartered in San Jose, 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
83Companies
381Contacts tracked
67Verified emails
Unlock all 83 companies Free signup · no credit card · 500 free credits

The 25 largest online advertising agencies based in San Jose, United States

Ranked by team size
Top 25 of 83 online advertising agencies based in San Jose, 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
SocialpulsarIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20025

“SocialPulsar is an award-winning digital marketing - marketing automation company headquartered in San Francisco, Ca.”

Source: company website · checked Sep 5, 2026
2
Baytech DigitalIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20020

“Baytech Digital is a global agency providing full-service web and digital marketing.”

Source: company website · checked Sep 5, 2026
3
Salesx, INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5014

“Pay Per Click (PPC) Digital Advertising Agency.”

Source: company website · checked Sep 5, 2026
4
77 MillionIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5013

“77 Million Is a movement in excellence in ROI-focused digital marketing that ensures customer growth through creative and out-of-the-box thinking.”

Source: company website · checked Sep 5, 2026
5
SocialsellinatorIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-1011

“SocialSellinator is an award-winning, top-rated full-service digital marketing agency that partners with startups, small and mid-size B2B/B2C businesses to drive growth and…”

Source: company website · checked Sep 5, 2026
6
Localbiznetwork, LLCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5010

“What could be the next toughest challenge to running a local business?”

Source: company website · checked Sep 5, 2026
7
Demand BoostIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-508

“Demand Boost Inc.”

Source: company website · checked Sep 5, 2026
8
The Spectrum Group Online, LLCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-108

“We're a new kind of digital marketing agency.”

Source: company website · checked Sep 5, 2026
9
TESFAIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-107

“Tesfa Business Solutions Information Technology (IT) a service company, dedicated to long-term relationships with our customers.”

Source: company website · checked Sep 5, 2026
10
Marketm8Indirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-504

“We are MarketM8, a digital sales and marketing agency who leverage our team and tools to augment and scale your digital sales and marketing execution.”

Source: company website · checked Sep 5, 2026
11
MobistreakPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-504

“Mobistreak is an advertising technology & media services company, dedicated to helping top national brands, as well as local businesses, solve complex marketing problems with…”

Source: company website · checked Sep 5, 2026
12
Click Catalyst Digital Marketing AgencyIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-104

“We’re a digital marketing agency passionate about driving ROI.”

Source: company website · checked Sep 5, 2026
13
RED FIN Marketing, LLCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-104

“Internet marketing firm providing search engine marketing, website design and social media marketing services.”

Source: company website · checked Sep 5, 2026
14
TNT Digital MarketingPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-103

“TNT Digital Marketing is an online marketing agency located in San Jose, Ca.”

Source: company website · checked Sep 5, 2026
15
V9marketingIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-103

“Based in San Jose, California.”

Source: company website · checked Sep 5, 2026
16
OPO SEOPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-102

“OPO SEO is a digital marketing agency focused on helping businesses grow online.”

Source: company website · checked Sep 5, 2026
17
Netedge Marketing LLCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-502

“Since 2007, NetEdge Marketing has been dedicated to helping small and medium sized business leverage the Internet and mobile devices to generate sales leads and convert them into…”

Source: company website · checked Sep 5, 2026
18
WSI Smart WEB MarketingIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-102

“Smart Web Marketing is a WSI agency that provides innovative digital marketing solutions to businesses and organizations worldwide.”

Source: company website · checked Sep 5, 2026
19
Full Service Internet Marketing FirmIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-102

“Proprietary Technology Coupled with Pure Genius and Superior Customer Support makes FSIMF stand out from the crowd.”

Source: company website · checked Sep 5, 2026
20
Firebrand MediaIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-101

“An industry-leading ads agency specializing in running social media ad campaigns for small-medium e-commerce brands and businesses across the US, Canada, UK, and Europe.”

Source: company website · checked Sep 5, 2026
21
WSI NET AdvantageIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-101

“Complete Internet Marketing Services and Consulting.”

Source: company website · checked Sep 5, 2026
22
GS Market MediaIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-101

“GS Market Media is a digital media and marketing agency that helps clients achieve business success through comprehensive digital marketing campaigns.”

Source: company website · checked Sep 5, 2026
23
GrobyoPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-101

“Digital Marketing Agency, Bay area based providing complete online marketing function and or project management for companies and non profits nationwide.”

Source: company website · checked Sep 5, 2026
24
Agência DASIndirect evidence
San Jose, United StatesHQ checked Sep 5, 20261-101

“A Agência DAS nasceu da ideia de tornar a sua marca forte na internet, um meio de comunicação em constante crescimento aonde mais de 80 milhões de brasileiros acessam diariamente…”

Source: company website · checked Sep 5, 2026
25
Blue TartanPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-101

“Based in the heart of Silicon Valley, we are poised to service your social media and digital advertising needs.”

Source: company website · checked Sep 5, 2026

Showing 25 of 83 online advertising agencies based in San Jose, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 67 reachable decision-makers.

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Online advertising agencies based in San Jose, 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
51
11-50
22
51-200
8
201-500
2

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 San Jose, over 83 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 San Jose, 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 San Jose 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, 67 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 San Jose, United States?

RevenueBase identified 83 online advertising agencies headquartered in San Jose, 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?

Socialpulsar, headquartered in San Jose, 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 67 verified decision-maker contacts tracked across these 83 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 83 online advertising agencies based in San Jose, 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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