Company lists · Data refreshed September 2026

Top 25 Custom software development companies for small business based in San Francisco, United States

Name: Custom software development companies for small business based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 117 companies tracked

RevenueBase identified 117 custom software development companies for small business headquartered in San Francisco, United States as of September 2026 and tracks 1,665 professional contacts across them, including 217 with verified work emails. Across the United States, New York is the largest hub for this category (353 companies); San Francisco has 117.

This list covers custom software development companies for small business headquartered in San Francisco, 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 27, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

117Companies

1,665Contacts tracked

217Verified emails

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The 25 largest custom software development companies for small business based in San Francisco, United States

Ranked by team size

Top 25 of 117 custom software development companies for small business based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development companies for small business: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RAW Engineering	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	97 contacts →
	Indirect evidence “Raw Engineering’s Innovative digital solutions and services are trusted by the world’s best Fortune 500 Enterprises, Sports & Entertainment companies and Startups to provide…” Source: RevenueBase Database · checked Sep 27, 2026
2	Smart IT	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	68 contacts →
	Strong evidence “Smart IT is a custom software development and web development company headquartered in San Francisco.” Source: RevenueBase Database · checked Sep 27, 2026
3	Interactive Labs, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	58 contacts →
	Partial evidence “Interactive Labs provides quality iOS, Android and Services design and development services.” Source: RevenueBase Database · checked Sep 27, 2026
4	Cmolds	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	55 contacts →
	Strong evidence “CMOLDS is a tech development company founded in 2016, focused on building mobile and web applications, UX/UI design systems, and custom software solutions.” Source: RevenueBase Database · checked Sep 27, 2026
5	Appeon	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	54 contacts →
	Partial evidence “Appeon was founded in by a group of innovative Silicon Valley professionals with the mission to simplify and speed up enterprise application development.” Source: RevenueBase Database · checked Sep 27, 2026
6	Scalac	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	49 contacts →
	Partial evidence “For over 10 years, Scalac has been delivering high-quality software, successfully aiding FinTechs, HealthTechs, EdTechs, AdTechs and startups in their efforts to scale.” Source: RevenueBase Database · checked Sep 27, 2026
7	Iyrix Technologies	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	39 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
8	Goteso	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	33 contacts →
	Strong evidence “Goteso is a product and service based software development firm.” Source: RevenueBase Database · checked Sep 27, 2026
9	Roundtechsquare	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	29 contacts →
	Indirect evidence “At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.” Source: RevenueBase Database · checked Sep 27, 2026
10	Breezeworks	Indirect evidence	San Francisco, United StatesHQ checked Sep 27, 2026	11-50	27 contacts →
	Indirect evidence “Running your own service company is hard.” Source: RevenueBase Database · checked Sep 27, 2026
11	Quimbik, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	23 contacts →
	Partial evidence “Quimbik is a software engineering company focused on web applications (solutions).” Source: RevenueBase Database · checked Sep 27, 2026
12	Proleadsoft	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	23 contacts →
	Strong evidence “At Proleadsoft we specialize in the design, development and implementation of apps, software and digital marketing solutions.” Source: RevenueBase Database · checked Sep 27, 2026
13	Creativehub	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	23 contacts →
	Strong evidence “CreativeHub is a pioneering software development company focused on driving growth and innovation across industries.” Source: RevenueBase Database · checked Sep 27, 2026
14	Appify	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	22 contacts →
	Indirect evidence “Build rich web & mobile solutions that are sophisticated, easy to use, and can connect to any system of record.” Source: RevenueBase Database · checked Sep 27, 2026
15	Appstem	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	20 contacts →
	Strong evidence “Appstem designs and develops custom software to help our clients solve complex business problems.” Source: RevenueBase Database · checked Sep 27, 2026
16	raptech.ai	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	18 contacts →
	Strong evidence “Raptech.ai creates AI-powered business software solutions built around the way each customer actually works.” Source: RevenueBase Database · checked Sep 27, 2026
17	LAB Zero Innovations INC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	15 contacts →
	Strong evidence “Lab Zero designs and develops custom software and products that move your business forward.” Source: RevenueBase Database · checked Sep 27, 2026
18	High Seas	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	14 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
19	Novalab Tech	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	12 contacts →
	Strong evidence “NovaLab Tech is a software development company with over 10 years of proven industry experience.” Source: RevenueBase Database · checked Sep 27, 2026
20	Apps-O-Rama	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	11 contacts →
	Partial evidence “Apps-O-Rama is a development consulting company that specializes in providing development solutions for brands, tech companies and startups.” Source: RevenueBase Database · checked Sep 27, 2026
21	Baruni Solutions	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	201-500	10 contacts →
	Strong evidence “Baruni Solutions is a custom software development company based in Jabalpur, MP, India with proven expertise in Microsoft technologies, Web application development, Mobile…” Source: RevenueBase Database · checked Sep 27, 2026
22	Robot SEA Monster	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	10 contacts →
	Strong evidence “Robot Sea Monster is custom software development studio that leverages bespoke solutions to deliver on digital ambitions.” Source: RevenueBase Database · checked Sep 27, 2026
23	IM Republic	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	9 contacts →
	Strong evidence “IM Republic, founded in 2005, is a custom software development company with offices in San Francisco, CA, and Belgrade, Serbia.” Source: RevenueBase Database · checked Sep 27, 2026
24	Madhupa	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
25	Torres Atlantic, LLC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Strong evidence “San Francisco-based software development consulting agency.” Source: RevenueBase Database · checked Sep 27, 2026

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: custom software development companies for small business. 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 custom software development companies for small business.
Partial evidence: Its own public description names part of custom software development companies for small business, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development companies for small business. 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 117 custom software development companies for small business based in San Francisco, United States

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Custom software development companies for small business based in San Francisco, United States at a glance

As of Sep 27, 2026

13.0%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

Sep 27, 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 117 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 custom software development companies for small business, 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 Francisco, United States whose own description of what they do matches “custom software development companies for small business”. 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 custom software development companies for small business), 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 custom software development companies for small business, and records with no verified work email. Companies headquartered outside San Francisco 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, 217 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 27, 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.

Custom software development companies for small business by metro in the United States

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 custom software development companies for small business, 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 custom software development companies for small business are there based in San Francisco, United States?

RevenueBase identified 117 custom software development companies for small business headquartered in San Francisco, 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?

RAW Engineering, headquartered in San Francisco, tops this list with the largest team on record.

Which city in the United States has the most custom software development companies for small business?

New York leads the United States with 353 headquartered companies, followed by Austin (211) and Houston (147). San Francisco has 117.

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 217 verified decision-maker contacts tracked across these 117 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 27, 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.