Company lists · Data refreshed September 2026

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

Name: Secure software development companies based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 55 companies tracked

RevenueBase identified 55 secure software development companies headquartered in San Diego, United States as of September 2026 and tracks 744 professional contacts across them, including 232 with verified work emails. New York is the largest hub.

This list covers secure software development companies headquartered in San Diego, 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

55Companies

744Contacts tracked

232Verified emails

Explore all 55 companies → Free signup · no credit card · 500 free credits

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

Ranked by team size

Top 25 of 55 secure software development companies based in San Diego, 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	Innovasystems International, LLCPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	201-500	210
	“Creating extraordinary solutions through innovative software.” Source: company website · checked Sep 6, 2026
2	SoluteIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	51-200	108
	“SOLUTE, a Sigma defense company, is headquartered in San Diego, California with a presence in many major military areas.” Source: company website · checked Sep 6, 2026
3	Moebius Solutions, INCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	51-200	94
	Source: company website · checked Sep 6, 2026
4	X-FedsIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	51-200	37
	“X-Feds is a Small Business headquartered in San Diego, CA with satellite offices located in Norfolk, Virginia; Charleston, South Carolina; Crane, Indiana and Washington, DC.” Source: company website · checked Sep 6, 2026
5	CompuoneIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	22
	“We are now serving IT needs in the greater Chicago area!” Source: company website · checked Sep 6, 2026
6	Sapient Logic LLCPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	19
	“Sapient Logic is a premier mission technology provider focused on advancing secure cloud innovations to serve and protect national defense capabilities.” Source: company website · checked Sep 6, 2026
7	SD SharpStrong evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	13
	“SD Sharp is a boutique Software Development agency with one of the best Dev Teams in California.” Source: company website · checked Sep 6, 2026
8	TbdcyberIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	9
	“TBDCyber is a cybersecurity company focused on strategy, assessments, and program build services.” Source: company website · checked Sep 6, 2026
9	MeijunIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	8
	“Meijun is a technology solutions provider that specializes in creating tailored, innovative technology solutions to help businesses achieve their objectives.” Source: company website · checked Sep 6, 2026
10	Odyssey Computing, INCStrong evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	7
	“Odyssey Computing is a privately held custom software and mobile app development company based in San Diego.” Source: company website · checked Sep 6, 2026
11	ITERQIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	6
	“iterQ is a U.S-based company focused on business-technology consulting and offering professional services based on Microsoft, Omada, and One Identity solutions in the Identity &…” Source: company website · checked Sep 6, 2026
12	HannulawellsPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	6
	“HannulaWells is a cyber security services provider, servicing enterprise level environments to SMB's.” Source: company website · checked Sep 6, 2026
13	NexifyPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	11-50	6
	“Our Vision Nexify helps clients achieve operational efficiency, data security, and strategic tech integration, focusing on Artificial Intelligence, Data Governance, and…” Source: company website · checked Sep 6, 2026
14	Fylaxcyber INCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	5
	Source: company website · checked Sep 6, 2026
15	SAN Diego IT ProsPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	“IT Consulting firm based in San Diego, offering consulting on security, network management, infrastructure, cloud services, and more.” Source: company website · checked Sep 6, 2026
16	Somerset Recon, INCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	Source: company website · checked Sep 6, 2026
17	WorkstersIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	3
	“Worksters is a San Diego–based small business focused on cybersecurity, IT modernization, and encryption hardware.” Source: company website · checked Sep 6, 2026
18	Basic Business IT Consulting ServicesIndirect evidence	San Diego, United StatesHQ checked Sep 6, 2026	1-10	3
	“Founded in 2013 on the IDEA to provide Basic Foundational IT Solutions and Support with an Excellent Customer Experience.” Source: company website · checked Sep 6, 2026
19	Prometheus CybersecurityPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“Prometheus Cybersecurity is an information security company based out of San Diego, California.” Source: company website · checked Sep 6, 2026
20	Taro Technology LLCPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“Providing IT / security and consulting services to medium sized business” Source: company website · checked Sep 6, 2026
21	Cybersecurity Consulting CompanyPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“Atlant Security engineers the cybersecurity posture that enterprise procurement teams approve on sight.” Source: company website · checked Sep 6, 2026
22	Cyclic Security SolutionsPartial evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	2
	“Cyclic Security Solutions (CS2) is a leading provider of Cyber Security Engineering, Program Management and Systems Integration by providing technical services and solutions.” Source: company website · checked Sep 6, 2026
23	Heitech Custom Solutions, LLCIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Heitech Custom Solutions, LLC is a full-service consulting company based in San Diego, CA.” Source: company website · checked Sep 6, 2026
24	Geeky Clean TechnologyIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Geeky Clean Technology (GCT) is San Diego’s premier ethical IT consultancy, serving Pacific Beach, La Jolla, and Mount Soledad since 2006.” Source: company website · checked Sep 6, 2026
25	BitchipIndirect evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1-10	1
	“Providing managed IT services with an emphasis on cybersecurity.” Source: company website · checked Sep 6, 2026

Showing 25 of 55 secure software development companies based in San Diego, United States

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Secure software development companies based in San Diego, 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 Diego, over 55 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 Diego, 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 Diego 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, 232 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 Diego, United States?

RevenueBase identified 55 secure software development companies headquartered in San Diego, 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?

Innovasystems International, LLC, headquartered in San Diego, 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 232 verified decision-maker contacts tracked across these 55 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.