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Company lists · Data refreshed September 2026

Top 25 Platform building firms based in San Jose, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 78 companies tracked

RevenueBase identified 78 platform building firms headquartered in San Jose, United States as of September 2026 and tracks 5,745 professional contacts across them, including 1,187 with verified work emails. New York is the largest hub.

This list covers platform building firms 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
78Companies
5,745Contacts tracked
1,187Verified emails
Explore all 78 companies → Free signup · no credit card · 500 free credits

The 25 largest platform building firms based in San Jose, United States

Ranked by team size
Top 25 of 78 platform building firms 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 platform building firms: 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
ACL DigitalIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261,001-5,0002,640

“ACL Digital is a design-led Digital Experience, Product Innovation, Solutions, and Consulting offerings leader.”

Source: company website · checked Sep 5, 2026
2
Lollypop Design StudioIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 2026201-5001,078

“We are a full-stack design-to-development solution provider, that helps enterprises build future-ready products.”

Source: company website · checked Sep 5, 2026
3
Zymr, Inc. Ai-Native Product Engineering ServicesIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 2026201-500222

“Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.”

Source: company website · checked Sep 5, 2026
4
Ajmera Infotech INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-200157

“Your Technology Partner for the Digital Transformation Ajmera Infotech is a software and product development company specializing in building large-scale systems.”

Source: company website · checked Sep 5, 2026
5
Eight25Indirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-200149

“eight25 is a global digital agency that delivers high-performing web experiences for enterprise companies.”

Source: company website · checked Sep 5, 2026
6
Matellio INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 2026201-500143
Source: company website · checked Sep 5, 2026
7
Firstwire AppsIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20079

“Established in the Year 2012, We are a Leading IT Services Company and help Businesses with E-Commerce, AI Integration, Website Development, CRO, Digital Marketing, and MarTech…”

Source: company website · checked Sep 5, 2026
8
Trango TechIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20066

“We’re a full-stack digital transformation company providing unlimited 360-degree software solutions.”

Source: company website · checked Sep 5, 2026
9
ATH InfosystemsIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20061

“ATH Infosystems is a leading provider of innovative digital solutions, trusted by global clients for delivering cutting-edge technology services that drive sustainable business…”

Source: company website · checked Sep 5, 2026
10
4d PipelineIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20043

“4D Pipeline defines, designs, develops, and deploys software and digital products.”

Source: company website · checked Sep 5, 2026
11
Eike ConsultingIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5035

“With over 26 years experience bringing client visions to life, we have found that it starts with listening to you, fully absorbing your dream.”

Source: company website · checked Sep 5, 2026
12
BaunfireIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5028

“Baunfire is a digital agency in Downtown San Jose, partnering with visionary companies to design, develop, and launch impactful brand experiences on the web.”

Source: company website · checked Sep 5, 2026
13
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
14
Lunar WEB SolutionPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20020

“At Lunar Web Solutions, we’re not just building digital products; we’re transforming the way businesses connect with technology.”

Source: company website · checked Sep 5, 2026
15
Mw2 ConsultingIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20018

“MW2’s founders began their careers with Big 5 consulting firms, working on large-scale E-Commerce, Content Management Systems, ERP, and CRM projects for Fortune 500 clients.”

Source: company website · checked Sep 5, 2026
16
SLICKIndirect evidence
San Jose, United StatesHQ checked Sep 5, 202611-5017

“Leading UI/UX Design and Product Development Agency”

Source: company website · checked Sep 5, 2026
17
A-CxIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-5016

“A-CX is an AI-native software engineering company.”

Source: company website · checked Sep 5, 2026
18
Sab-Web ServicesIndirect evidence
San Jose, United StatesHQ checked Sep 5, 202611-5016

“Sab-web services is a high end webdesign boutique creating cutting-edge solutions for businesses from scratch to full digitalization, as well as solutions for scaling a business.”

Source: company website · checked Sep 5, 2026
19
Aptivar INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-20015

“Aptivar is a professionally managed company in the arena of digital transformation, digital strategy and marketing services.”

Source: company website · checked Sep 5, 2026
20
ANMLIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202611-507

“An award-winning design and development studio, ANML crafts brands from the inside out by creating the core experiences that define them.”

Source: company website · checked Sep 5, 2026
21
Jamii TechnologyIndirect evidence
San Jose, United StatesHQ checked Sep 5, 202611-507

“Jamii Technology is a Mobile Application Design & Development studio delivering value to start-ups, enterprises, and the community at large.”

Source: company website · checked Sep 5, 2026
22
Mosaic Technologies, INCPartial evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-107

“Mosaic Technologies is a platform holding company focused on scaling the built environment through capital alignment, productized design, advanced materials, and execution…”

Source: company website · checked Sep 5, 2026
23
Maahey Technologies, INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202651-2006

“Serving Best Technology Solutions!~ Web development With a firm spot in the world of web development, our latest features of web development incorporate as up-to-date guidelines…”

Source: company website · checked Sep 5, 2026
24
E8 LabsIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-106

“E8 Labs is a software development agency comprised of millennials specializing in custom software development and digital marketing.”

Source: company website · checked Sep 5, 2026
25
PixelolabsIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 20261-105

“PixeloLabs, a leading web development agency based in California, is driven by a seasoned professional with over 15 years of industry experience.”

Source: company website · checked Sep 5, 2026

Showing 25 of 78 platform building firms 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 1,187 reachable decision-makers.

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Platform building firms based in San Jose, United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 801 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
27
11-50
22
51-200
22
201-500
3
1,001-5,000
4

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 78 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 platform building firms, 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 “platform building firms”. 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 platform building firms, 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, 1,187 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.

Platform building firms by metro in the United States

Frequently asked

How many platform building firms are there based in San Jose, United States?

RevenueBase identified 78 platform building firms 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?

ACL Digital, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most platform building firms?

New York leads with 801 headquartered companies, followed by Austin (358) and Los Angeles (354).

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 1,187 verified decision-maker contacts tracked across these 78 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 78 platform building firms based in San Jose, United States. Start with a free account, no credit card.

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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 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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