Company lists · Data refreshed September 2026
Top 25 Secure software development companies based in Denver, United States
RevenueBase identified 43 secure software development companies headquartered in Denver, United States as of September 2026 and tracks 371 professional contacts across them, including 184 with verified work emails. New York is the largest hub.
This list covers secure software development companies headquartered in Denver, 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.
The 25 largest secure software development companies based in Denver, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 111 | ||||
“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 48 | ||||
“Accuvant is a leading provider of information security services and solutions serving enterprise-class organizations across North America.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Point Solutions Group, LLCIndirect evidence | 25 | |||
“While it’s good to have a technology department, sometimes you need to call in freaky smart and talented gals, guys and everyone in between as your go-to fixers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 | ||||
“Most IT companies are great at one thing.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | FusionboxStrong evidence | 14 | |||
“Fusionbox is a software development agency in Denver, Colorado.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 13 | ||||
“Point Solutions Security was born from a belief that anything is possible when you step outside your comfort zone and push boundaries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Semper SECPartial evidence | 12 | |||
“Semper Sec is a cyber security consulting firm that helps businesses build security programs and navigate compliance in order maintain competitive advantage.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | XorfoxStrong evidence | 8 | |||
“XorFox is a professional software design and development studio, owned and operated by computer scientists.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 | ||||
“DevilDog specializes in making cybersecurity easy with complete customized security solutions from start to finish.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 | ||||
“IT.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Lost Rabbit LabsPartial evidence | 5 | |||
“Lost Rabbit Labs offers in-depth and comprehensive security assessments tailored specifically to meet any clients security needs.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 | ||||
“Every Cynthetic Systems engagement is managed and ongoing, not a one-time project.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | TechnologywestIndirect evidence | 4 | |||
“TechnologyWest is a Colorado-based IT services provider delivering cybersecurity solutions, managed IT services, cloud infrastructure, networking, unified communications, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 | ||||
“At Cypress Data Defense, our goal is to help organizations secure their IT and Application Development Operations using a pragmatic, risk-based approach.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | TapzeoIndirect evidence | 4 | |||
“Technology Aligned with your Business.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“We can help you launch a new product or seamlessly integrate with your development team to accelerate product delivery.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 | ||||
“Ironline Security is a vendor-agnostic consultancy that helps solve your information security problems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Security Pursuit, LLCPartial evidence | 3 | |||
“Security Pursuit provides computer security services to help organizations protect their business-critical information systems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“When implemented well technology is the platform to make your organization GROW.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | SpydersecPartial evidence | 2 | |||
“SpyderSec is an information security consulting organization with a straightforward mission: To enhance the security posture of our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | ZEN Technology SolutionsIndirect evidence | 2 | |||
“Delivering full service small business IT support and protecting Colorado small businesses from malware and cyber-related risk.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
“Absio moves data security to the top of the stack with application-level data security solutions and consulting services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Digital SilencePartial evidence | 1 | |||
“Digital Silence is a world-class provider of information security research and consulting services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 | ||||
“CloudSapio is a premier cybersecurity and technology consulting firm, renowned for delivering exceptional guidance and innovative solutions to a broad spectrum of clients, ranging…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Logic3iiStrong evidence | 1 | |||
“IT Consulting & Custom Software Development” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 43 secure software development companies based in Denver, United States
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Secure software development companies based in Denver, United States at a glance
As of Sep 6, 2026Companies by employee count
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 Denver, over 43 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 Denver, 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 Denver 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, 184 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
- Secure software development companies in New York183
- Secure software development companies in Houston112
- Secure software development companies in Atlanta109
- Secure software development companies in Austin104
- Secure software development companies in Washington94
- Secure software development companies in Miami91
- Secure software development companies in Dallas84
- Secure software development companies in San Francisco77
- Secure software development companies in Chicago76
- Secure software development companies in Arlington66
- Secure software development companies in Los Angeles63
- Secure software development companies in Tampa63
- Secure software development companies in Columbia60
- Secure software development companies in San Diego55
- Secure software development companies in Reston51
- Secure software development companies in Charlotte50
- Secure software development companies in San Antonio50
- Secure software development companies in Herndon49
- Secure software development companies in Fairfax48
- Secure software development companies in Mclean48
- Secure software development companies in Alexandria46
- Secure software development companies in Sheridan46
- Secure software development companies in Boston43
- Secure software development companies in Denver43
- Secure software development companies in Las Vegas38
- Secure software development companies in Baltimore37
- Secure software development companies in Seattle37
- Secure software development companies in Wilmington35
- Secure software development companies in Orlando33
- Secure software development companies in Indianapolis31
- Secure software development companies in Irvine31
- Secure software development companies in Leesburg29
- Secure software development companies in San Jose29
- Secure software development companies in Ashburn28
- Secure software development companies in Philadelphia28
- Secure software development companies in Plano28
- Secure software development companies in Dover27
- Secure software development companies in Vienna27
- Secure software development companies in Huntsville26
- Secure software development companies in Irving26
- Secure software development companies in Phoenix26
- Secure software development companies in Rockville26
- Secure software development companies in Columbus25
- Secure software development companies in Jacksonville25
- Secure software development companies in Richmond25
Frequently asked
How many secure software development companies are there based in Denver, United States?
RevenueBase identified 43 secure software development companies headquartered in Denver, 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?
Directdefense, headquartered in Denver, 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 184 verified decision-maker contacts tracked across these 43 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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