Company lists · Data refreshed November 2026

Top 19 Software engineering services based in San Francisco, United States

Name: Software engineering services 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 191 companies tracked

RevenueBase identified 191 company matches for software engineering services associated with San Francisco, United States as of November 2026 and tracks 2,822 professional contacts across them, including 661 with verified work emails. Across the United States, New York is the largest hub for this category (483 companies); San Francisco has 191.

This list covers company matches for software engineering services 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

191Companies

2,822Contacts tracked

661Verified emails

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The 19 largest software engineering services based in San Francisco, United States

Ranked by team size

Top 19 of 191 company matches for software engineering services 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	Treinetic	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	82 contacts →
	Exact match “Treinetic™ is a leading software product engineering and technology consulting company, recognized for its innovative and award-winning solutions.” 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	Sudolabs	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	72 contacts →
	Exact match “We are a go-to digital product-building studio dedicated to helping US startups and enterprises shape and build their product ideas and set up a long-term growth trajectory.” 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	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
8	Syndicode	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “Syndicode is an engineering partner for product delivery, data infrastructure, and AI systems - secure and compliant by design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Optic Power	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	44 contacts →
	Exact match “Optic Power (also known as Code Power after 2022) was a global engineering and product execution company with over 100+ clients (startups and enterprises) worldwide that…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	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
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	Alto Acq. By Revelo	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	32 contacts →
	Exact match “Alto is a San Francisco-based technology company specializing in assembling and managing global software engineering teams across 30+ countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Mayven Studios	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	27 contacts →
	Exact match “Mayven Studios is a software design and engineering partner that helps you build and scale successful digital products and experiences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	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
15	Hypotenuse Labs	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	26 contacts →
	Exact match “Hypotenuse Labs is a product-minded software consultancy trusted by leading startups and enterprise teams to deliver high-quality engineering at startup speed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	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
17	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
18	AKAVA	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Akava is a premier technology consultancy specializing in digital transformation, technology due diligence, and value creation services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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

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 “software engineering services”. 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 19 of 191 software engineering services based in San Francisco, United States

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Software engineering services based in San Francisco, United States at a glance

As of Nov 6, 2026

23.4%Verified-email coverage

14.8Average 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

5,001-10,000

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 191 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 “software engineering services” 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 661 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.

Software engineering services 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 “software engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many software engineering services are there based in San Francisco, United States?

RevenueBase identified 191 company matches for software engineering services 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 software engineering services?

New York leads the United States with 483 company records, followed by Austin (291) and Houston (195). San Francisco has 191.

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 661 professional contacts with verified work emails tracked across these 191 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.