Company lists · Data refreshed November 2026

Top 22 B2B app developers based in San Francisco, United States

Name: B2B app developers based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 140 companies tracked

RevenueBase identified 140 company matches for B2B app developers associated with San Francisco, United States as of November 2026 and tracks 2,454 professional contacts across them, including 508 with verified work emails. Across the United States, New York is the largest hub for this category (401 companies); San Francisco has 140.

This list covers company matches for B2B app developers associated with San Francisco, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

140Companies

2,454Contacts tracked

508Verified emails

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The 22 largest B2B app developers based in San Francisco, United States

Ranked by team size

Top 22 of 140 company matches for B2B app developers based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Fluxon	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	255 contacts →
	Exact match “Fluxon is a San Francisco-based software development team trusted by Google, Anthropic, Stripe, and top startups with the technology work that matters most.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Ensolvers	Exact match	San Francisco, United StatesHQ recorded Nov 6, 2026	51-200	129 contacts →
	Exact match “Ensolvers specializes in software development, architecture, product development, outsourcing, testing, and building dedicated teams for end-to-end software solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Conexa	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	117 contacts →
	Exact match “Conexa is a Long-Term Tech Partner that develops custom solutions and integrations to boost products and revenue.+100 Clients (Fiserv, UBER, Klaviyo, Shopify, Klarna…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Smart IT	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	73 contacts →
	Exact match “Smart IT is a custom software development and web development company headquartered in San Francisco.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Spiral Scout	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	66 contacts →
	Exact match “Most teams don’t struggle with building software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Appeon	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	59 contacts →
	Exact match “Appeon was founded in by a group of innovative Silicon Valley professionals with the mission to simplify and speed up enterprise application development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Interactive Labs, INC	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	59 contacts →
	Exact match “Interactive Labs provides quality iOS, Android and Services design and development services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Scalac	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	46 contacts →
	Exact match “For over 10 years, Scalac has been delivering high-quality software, successfully aiding FinTechs, HealthTechs, EdTechs, AdTechs and startups in their efforts to scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Gbsfo Custom Software Solutions Provider	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “GBSFO is a creative software development solutions company with a strong attitude.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Iyrix Technologies	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	39 contacts →
	Exact match “Iyrix Tech is a custom software development company having 10+ years of experience with a team of high quality engineers and well-versed specialists providing innovative solutions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Goteso	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	33 contacts →
	Exact match “Goteso is a product and service based software development firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Roundtechsquare	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Quimbik, INC	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	25 contacts →
	Exact match “Quimbik is a software engineering company focused on web applications (solutions).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Creativehub	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	23 contacts →
	Exact match “CreativeHub is a pioneering software development company focused on driving growth and innovation across industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Appstem	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	20 contacts →
	Exact match “Appstem designs and develops custom software to help our clients solve complex business problems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	LAB Zero Innovations INC	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Lab Zero designs and develops custom software and products that move your business forward.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Cidersoft	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	13 contacts →
	Exact match “Cidersoft is a San Francisco software development company that helps US businesses build and scale production software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Apps-O-Rama	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	12 contacts →
	Exact match “Apps-O-Rama is a development consulting company that specializes in providing development solutions for brands, tech companies and startups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Novalab Tech	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	11 contacts →
	Exact match “NovaLab Tech is a software development company with over 10 years of proven industry experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Webdevelop PRO	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “We are a full-stack software development company, that can drive a project from an early stage idea to stable business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Passage	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	1-10	9 contacts →
	Exact match “Passage brings software applications and platforms to life for a host of businesses-from startups to enterprise companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Human Decode	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “Human Decode provides technical consulting services to SMB and high-growth companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “B2B app developers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 140 B2B app developers based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 508 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B app developers based in San Francisco, United States at a glance

As of Nov 6, 2026

20.7%Verified-email coverage

17.5Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data 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 for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 140 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with San Francisco, United States whose business descriptions match “B2B app developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 508 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

B2B app developers by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “B2B app developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B app developers are there based in San Francisco, United States?

RevenueBase identified 140 company matches for B2B app developers associated with San Francisco, United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Fluxon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most B2B app developers?

New York leads the United States with 401 company records, followed by Austin (223) and Chicago (171). San Francisco has 140.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 508 professional contacts with verified work emails tracked across these 140 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 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.