Company lists · Data refreshed September 2026
Top 25 Platform building firms based in San Jose, United States
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, its RevenueBase Smart Search rating, 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 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.
The 25 largest platform building firms based in San Jose, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,640 contacts → | ||||
Indirect evidence “ACL Digital is a design-led Digital Experience, Product Innovation, Solutions, and Consulting offerings leader.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,078 contacts → | ||||
Indirect evidence “We are a full-stack design-to-development solution provider, that helps enterprises build future-ready products.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 222 contacts → | ||||
Indirect evidence “Zymr is a fast-paced Silicon Valley-based software company that is leading the digital change.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 157 contacts → | ||||
Partial evidence “Your Technology Partner for the Digital Transformation Ajmera Infotech is a software and product development company specializing in building large-scale systems.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 149 contacts → | ||||
Indirect evidence “eight25 is a global digital agency that delivers high-performing web experiences for enterprise companies.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 143 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 66 contacts → | ||||
Indirect evidence “We’re a full-stack digital transformation company providing unlimited 360-degree software solutions.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 61 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Indirect evidence “4D Pipeline defines, designs, develops, and deploys software and digital products.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 28 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Indirect evidence “Baytech Digital is a global agency providing full-service web and digital marketing.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 20 contacts → | ||||
Partial evidence “At Lunar Web Solutions, we’re not just building digital products; we’re transforming the way businesses connect with technology.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Indirect evidence “Leading UI/UX Design and Product Development Agency” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect evidence “A-CX is an AI-native software engineering company.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “Aptivar is a professionally managed company in the arena of digital transformation, digital strategy and marketing services.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence “An award-winning design and development studio, ANML crafts brands from the inside out by creating the core experiences that define them.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Jamii Technology is a Mobile Application Design & Development studio delivering value to start-ups, enterprises, and the community at large.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Partial evidence “Mosaic Technologies is a platform holding company focused on scaling the built environment through capital alignment, productized design, advanced materials, and execution…” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “E8 Labs is a software development agency comprised of millennials specializing in custom software development and digital marketing.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “PixeloLabs, a leading web development agency based in California, is driven by a seasoned professional with over 15 years of industry experience.” Source: RevenueBase Database · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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: platform building firms. 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 platform building firms.
- Partial evidence
- Its own public description names part of platform building firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name platform building firms. 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 78 platform building firms based in San Jose, United States
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Platform building firms based in San Jose, United States at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Jose, 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 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 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.
- 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 platform building firms), 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 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 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, 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
- Platform building firms in New York801
- Platform building firms in Austin358
- Platform building firms in Los Angeles354
- Platform building firms in San Francisco287
- Platform building firms in Miami258
- Platform building firms in Chicago255
- Platform building firms in Houston216
- Platform building firms in Sheridan214
- Platform building firms in Atlanta196
- Platform building firms in Dallas169
- Platform building firms in San Diego143
- Platform building firms in Denver136
- Platform building firms in Seattle124
- Platform building firms in Boston112
- Platform building firms in Orlando104
- Platform building firms in Portland104
- Platform building firms in San Jose78
- Platform building firms in Washington74
- Platform building firms in Irvine73
- Platform building firms in Tampa73
- Platform building firms in Wilmington72
- Platform building firms in Brooklyn68
- Platform building firms in Dover68
- Platform building firms in Minneapolis68
- Platform building firms in Philadelphia66
- Platform building firms in Charlotte60
- Platform building firms in Richmond57
- Platform building firms in Las Vegas56
- Platform building firms in New York City49
- Platform building firms in Arlington47
- Platform building firms in Albuquerque46
- Platform building firms in St Petersburg45
- Platform building firms in Phoenix44
- Platform building firms in Columbus43
- Platform building firms in Frisco43
- Platform building firms in Pittsburgh43
- Platform building firms in Boulder42
- Platform building firms in Nashville42
- Platform building firms in Raleigh42
- Platform building firms in Sacramento42
- Platform building firms in Baltimore41
- Platform building firms in Newark40
- Platform building firms in San Antonio39
- Platform building firms in Santa Monica38
- Platform building firms in Detroit36
- Platform building firms in Plano36
- Platform building firms in Cincinnati35
- Platform building firms in Grand Rapids35
- Platform building firms in Irving35
- Platform building firms in Salt Lake City35
- Platform building firms in Cheyenne33
- Platform building firms in Columbia33
- Platform building firms in Fort Lauderdale33
- Platform building firms in Indianapolis33
- Platform building firms in Scottsdale30
- Platform building firms in Fremont29
- Platform building firms in Middletown29
- Platform building firms in Casper28
- Platform building firms in Jacksonville28
- Platform building firms in Jersey City27
- Platform building firms in Sunnyvale27
- Platform building firms in Alpharetta26
- Platform building firms in Boca Raton26
- Platform building firms in Lewes26
- Platform building firms in Oakland26
- Platform building firms in St. Petersburg26
- Platform building firms in Albany25
- Platform building firms in Kansas City25
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 platform building firms, 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 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.
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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.
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