Company lists · Data refreshed November 2026

Top 23 App api development services based in San Francisco, United States

Name: App api development 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 112 companies tracked

RevenueBase identified 112 company matches for app api development services associated with San Francisco, United States as of November 2026 and tracks 1,818 professional contacts across them, including 347 with verified work emails. Across the United States, New York is the largest hub for this category (303 companies); San Francisco has 112.

This list covers company matches for app api development 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

112Companies

1,818Contacts tracked

347Verified emails

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The 23 largest app api development services based in San Francisco, United States

Ranked by team size

Top 23 of 112 company matches for app api development 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	Solveit	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	51-200	83 contacts →
	Exact match “Building more than just apps.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	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
6	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
7	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
8	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
9	Velos Mobile	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	24 contacts →
	Exact match “We're Velos, a trusted mobile development agency and consultancy based in beautiful San Francisco.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Going Merry	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	23 contacts →
	Exact match “Ahoy!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	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
14	High Seas	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “High Seas is a technology-focused digital agency that specializes in custom Mobile App and Website solutions that improve performance and productivity for small, medium, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Geekbears	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Do you have a great idea for a web or mobile app but not sure where to start?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Wlcm Welcome APP Studio	Exact match	San Francisco, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Top US-based App Design and Development Agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Galliot	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “At our core, we provide exceptional software engineering and design services, offering an array of solutions designed to foster growth, cut costs, and expedite timelines.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	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
19	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
20	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
21	Madhupa	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Thinkapps	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	5 contacts →
	Exact match “ThinkApps is an on-demand service for designing and building stunning apps for web, mobile, and wearable devices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Britesnow	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “Dev Team as a Service >> Cloud Web and Mobile Web Application Development.” 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 “app api development 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 23 of 112 app api development services based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 347 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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App api development services based in San Francisco, United States at a glance

As of Nov 6, 2026

19.1%Verified-email coverage

16.2Average 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 112 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 “app api development 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 347 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.

App api development 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 “app api development services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many app api development services are there based in San Francisco, United States?

RevenueBase identified 112 company matches for app api development 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 app api development services?

New York leads the United States with 303 company records, followed by Austin (127) and San Francisco (112).

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 347 professional contacts with verified work emails tracked across these 112 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.