Company lists · Data refreshed September 2026

Top 25 Secure software development companies based in San Francisco, United States

Name: Secure software development companies 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 6, 2026 77 companies tracked

RevenueBase identified 77 secure software development companies headquartered in San Francisco, United States as of September 2026 and tracks 436 professional contacts across them, including 134 with verified work emails. New York is the largest hub.

This list covers secure software development companies 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

77Companies

436Contacts tracked

134Verified emails

Explore all 77 companies → Free signup · no credit card · 500 free credits

The 25 largest secure software development companies based in San Francisco, United States

Ranked by team size

Top 25 of 77 secure software development companies 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 secure software development companies: 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.
#	Company	Headquarters	Employees	Contacts
1	MINDKStrong evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	51-200	124
	“MindK is a software development and IT consulting company that helps businesses build software products, automate business processes, modernize technology and infrastructure.” Source: company website · checked Sep 6, 2026
2	SentantIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	11-50	24
	“Sentant is a next-generation cybersecurity & IT services firm with a team of experienced technology professionals.” Source: company website · checked Sep 6, 2026
3	Code RED PartnersPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	20
	“Code Red specializes in cyber security staffing.” Source: company website · checked Sep 6, 2026
4	CidersoftStrong evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	51-200	16
	“Cidersoft is a San Francisco based software development company that offers full-service software design and development.” Source: company website · checked Sep 6, 2026
5	LCN ServicesPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	11-50	9
	“LCN Services is a top-tier IT consulting firm breaking down the boundaries of big data analytics, enterprise security, observability and automation.” Source: company website · checked Sep 6, 2026
6	HubbasePartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	11-50	8
	“Web pentesting with Defensive Security and Offensive Security.” Source: company website · checked Sep 6, 2026
7	Trustiphi, LLCPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	11-50	5
	“We help clients design “trust” into their next-generation electronic and software-based products to ensure the platforms and the digital data they create and manage are protected…” Source: company website · checked Sep 6, 2026
8	909cyberIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	5
	“Fraud doesn’t break in.” Source: company website · checked Sep 6, 2026
9	Dogpatch Solutions INCIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	4
	“Dogpatch Solutions is a leading IT consulting firm that specializes in cybersecurity assessments, migrations, networking and cloud computing solutions.” Source: company website · checked Sep 6, 2026
10	Gecko SecurityPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	4
	“Gecko finds and fixes security vulnerabilities in your codebase, just like having a security engineer making your code secure.” Source: company website · checked Sep 6, 2026
11	Yes-Security INCPartial evidence	San Francisco, United StatesHQ checked Sep 6, 2026	1-10	4
	“Our startup is dedicated to providing comprehensive security solutions for low-code/no-code products.” Source: company website · checked Sep 6, 2026
12	METLOPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	“Effortless API Security” Source: company website · checked Sep 6, 2026
13	Safet, INCIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	11-50	3
	“Three times, our founders built a category before the market had a name for it: business intelligence, applied AI, the data cloud (with technology that ended up inside Snowflake).” Source: company website · checked Sep 6, 2026
14	Consult OUR Source, LLCIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	“Consult Our Source is a Certified Small Disadvantaged Business, Minority Owned, and headquartered in San Francisco; specializing in complex environments in Information Technology…” Source: company website · checked Sep 6, 2026
15	SecurenexaPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	“SecureNexa is a global cybersecurity partner for small and mid-sized businesses.” Source: company website · checked Sep 6, 2026
16	cloudsec.aiStrong evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“We help ambitious software companies build strategic security programs, aligned with their business's unique goals and context.” Source: company website · checked Sep 6, 2026
17	Cobaltix ComplianceIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“Cobaltix Compliance provides risk assessments, creates policies and procedures, conducts vulnerability assessments and penetration testing, and performs vendor due diligence…” Source: company website · checked Sep 6, 2026
18	Valorcode LLCStrong evidence	San Francisco, United StatesHQ checked Sep 6, 2026	1-10	1
	“Working with clients to design and build full-stack software applications, including mobile applications, security practices, microservices, and database design.” Source: company website · checked Sep 6, 2026
19	ExcelsitorPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Excelsitor is a San Francisco-based software engineering company.” Source: company website · checked Sep 6, 2026
20	D3 NetworksIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“D3 Networks specializes in meeting the information technology and cybersecurity needs of firms in the financial industry.” Source: company website · checked Sep 6, 2026
21	Osmosis Security, LLCPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Boutique consultancy providing Information Security and Compliance advisory and testing services for startups to Fortune 100 companies.” Source: company website · checked Sep 6, 2026
22	Emerose Advisory ServicesPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Emerose is an independent consulting practice providing security consulting services to enterprise and startup customers alike.” Source: company website · checked Sep 6, 2026
23	BadgereyesecurityPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“We are mainly focused on providing managed security services as well as consultancy on security architecture.” Source: company website · checked Sep 6, 2026
24	Fusion Security Solutions INCPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Fusion Security Solutions provides expert knowledge and methods, while delivering effective, efficient, and consistent security and managed services solutions for your business.” Source: company website · checked Sep 6, 2026
25	FOG City Code WorksPartial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“We've been writing custom software applications for Silicon Valley companies for over 25 years.” Source: company website · checked Sep 6, 2026

Showing 25 of 77 secure software development companies based in San Francisco, United States

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Secure software development companies based in San Francisco, United States at a glance

As of Sep 6, 2026

1-10Median size (employees)

New YorkLargest hub · 183 HQs

Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 77 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 secure software development companies, 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 “secure software development companies”. 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 secure software development companies, 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, 134 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.

Secure software development companies by metro in the United States

Frequently asked

How many secure software development companies are there based in San Francisco, United States?

RevenueBase identified 77 secure software development companies 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?

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

Which city has the most secure software development companies?

New York leads with 183 headquartered companies, followed by Houston (112) and Atlanta (109).

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 134 verified decision-maker contacts tracked across these 77 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.