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Company lists · Data refreshed September 2026

Top 25 SaaS web developers based in San Francisco, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 152 companies tracked

RevenueBase identified 152 SaaS web developers headquartered in San Francisco, United States as of September 2026 and tracks 1,739 professional contacts across them, including 330 with verified work emails. New York is the largest hub.

This list covers SaaS web developers 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, how directly it supports the match, and when it was last checked. Data refreshed September 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
152Companies
1,739Contacts tracked
330Verified emails
Explore all 152 companies → Free signup · no credit card · 500 free credits

The 25 largest SaaS web developers based in San Francisco, United States

Ranked by team size
Top 25 of 152 SaaS web developers based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names SaaS web developers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
FluxonIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 2026201-500200

“Fluxon is a San Francisco-based software development team trusted by Google, Anthropic, Stripe, and top startups with the technology work that matters most.”

Source: company website · checked Sep 6, 2026
2
CoditudeIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-200108

“Coditude stands out as a rapidly growing force in the digital realm, offering straightforward, impactful tech capabilities.”

Source: company website · checked Sep 6, 2026
3
Smart ITPartial evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20068

“Smart IT is a custom software development and web development company headquartered in San Francisco.”

Source: company website · checked Sep 6, 2026
4
Span DigitalIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20060

“SPAN is a technical strategy and software engineering firm.”

Source: company website · checked Sep 6, 2026
5
Interactive Labs, INCIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20058

“Interactive Labs provides quality iOS, Android and Services design and development services.”

Source: company website · checked Sep 6, 2026
6
CmoldsPartial evidence
San Francisco, CA, United StatesHQ checked Sep 6, 2026501-1,00055

“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: company website · checked Sep 6, 2026
7
Gbsfo Custom Software Solutions ProviderIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20050

“GBSFO is a creative software development solutions company with a strong attitude.”

Source: company website · checked Sep 6, 2026
8
ScalacIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20049

“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: company website · checked Sep 6, 2026
9
GotesoIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5033

“Goteso is a product and service based software development firm.”

Source: company website · checked Sep 6, 2026
10
wizy.ioIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5031

“Digital, Cloud solutions, google cloud, GCP, custom app, android, EMM, mobility, workflow”

Source: company website · checked Sep 6, 2026
11
RoundtechsquareIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5029

“At RoundTechSquare, we believe that every business deserves digital solutions that inspire growth and innovation.”

Source: company website · checked Sep 6, 2026
12
Quimbik, INCPartial evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5023

“Quimbik is a software engineering company focused on web applications (solutions).”

Source: company website · checked Sep 6, 2026
13
CreativehubIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20023

“CreativeHub is a pioneering software development company focused on driving growth and innovation across industries.”

Source: company website · checked Sep 6, 2026
14
AppstemIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20020

“Appstem designs and develops custom software to help our clients solve complex business problems.”

Source: company website · checked Sep 6, 2026
15
CidersoftIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20016

“Cidersoft is a San Francisco based software development company that offers full-service software design and development.”

Source: company website · checked Sep 6, 2026
16
LAB Zero Innovations INCIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5015

“Lab Zero designs and develops custom software and products that move your business forward.”

Source: company website · checked Sep 6, 2026
17
High SeasIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5014

“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: company website · checked Sep 6, 2026
18
GalliotIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5013

“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.”

Source: company website · checked Sep 6, 2026
19
Novalab TechIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202651-20012

“NovaLab Tech is a software development company with over 10 years of proven industry experience.”

Source: company website · checked Sep 6, 2026
20
PassageIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 20261-1011

“Passage brings software applications and platforms to life for a host of businesses-from startups to enterprise companies.”

Source: company website · checked Sep 6, 2026
21
Apps-O-RamaIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5011

“Apps-O-Rama is a development consulting company that specializes in providing development solutions for brands, tech companies and startups.”

Source: company website · checked Sep 6, 2026
22
MindworksIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5010

“Elevate Your Business with Mindworks, the BX Cloud Software Pioneer.”

Source: company website · checked Sep 6, 2026
23
Robot SEA MonsterIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-5010

“Robot Sea Monster is custom software development studio that leverages bespoke solutions to deliver on digital ambitions.”

Source: company website · checked Sep 6, 2026
24
IM RepublicIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-509

“IM Republic, founded in 2005, is a custom software development company with offices in San Francisco, CA, and Belgrade, Serbia.”

Source: company website · checked Sep 6, 2026
25
Cloud City DevelopmentIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 202611-507
Source: company website · checked Sep 6, 2026

Showing 25 of 152 SaaS web developers based in San Francisco, United States

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SaaS web developers based in San Francisco, United States at a glance

As of Sep 6, 2026
1-10Median size (employees)
New YorkLargest hub · 416 HQs
Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
78
11-50
49
51-200
21
201-500
2
501-1,000
2

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 152 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 SaaS web developers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “SaaS web developers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among SaaS web developers, 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 an evidence 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, 330 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 6, 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.

SaaS web developers by metro in the United States

Frequently asked

How many SaaS web developers are there based in San Francisco, United States?

RevenueBase identified 152 SaaS web developers 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?

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

Which city has the most SaaS web developers?

New York leads with 416 headquartered companies, followed by Austin (251) and Sheridan (184).

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 330 verified decision-maker contacts tracked across these 152 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 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.

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