Company lists · Data refreshed September 2026

Top 25 Secure software development firms based in the United States

Name: Secure software development firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 6,121 companies tracked

RevenueBase identified 6,121 secure software development firms headquartered in the United States as of September 2026 and tracks 97,848 professional contacts across them, including 34,803 with verified work emails. New York is the largest hub.

This list covers secure software development firms headquartered in the 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 29, 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 29, 2026 86% judged on-target in blind review

6,121Companies

97,848Contacts tracked

34,803Verified emails

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The 25 largest secure software development firms based in the United States

Ranked by team size

Top 25 of 6,121 secure software development firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to secure software development firms: 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	Presidio	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,798 contacts →
	Indirect evidence “At Presidio, speed and quality meet technology and innovation.” Source: RevenueBase Database · checked Sep 29, 2026
2	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,222 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 29, 2026
3	Exadel	Strong evidence	Walnut Creek, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,874 contacts →
	Strong evidence “Exadel is a leading global software consulting and development company that looks beyond the code to maximize the technology-driven business impact our partners want to make.” Source: RevenueBase Database · checked Sep 29, 2026
4	V Group INC	Indirect evidence	Cranbury, NJ, United StatesHQ checked Sep 29, 2026	n/a	1,347 contacts →
	Indirect evidence “Since V Group Inc.” Source: RevenueBase Database · checked Sep 29, 2026
5	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,252 contacts →
	Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 29, 2026
6	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 29, 2026
7	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 29, 2026
8	Checkmarx	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 29, 2026	501-1,000	1,042 contacts →
	Partial evidence “Checkmarx helps the world’s largest enterprises get ahead of application risk without slowing down development.” Source: RevenueBase Database · checked Sep 29, 2026
9	PPC	Indirect evidence	Trevose, PA, United StatesHQ checked Sep 29, 2026	201-500	979 contacts →
	Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 29, 2026
10	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	874 contacts →
	Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 29, 2026
11	Telos Corporation	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	501-1,000	629 contacts →
	Partial evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 29, 2026
12	Planned Systems International	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	611 contacts →
	Indirect evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 29, 2026
13	NIC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	n/a	581 contacts →
	Indirect evidence “NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.” Source: RevenueBase Database · checked Sep 29, 2026
14	Ultraviolet Cyber	Partial evidence	Mclean, VA, United StatesHQ checked Sep 29, 2026	501-1,000	523 contacts →
	Partial evidence “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: RevenueBase Database · checked Sep 29, 2026
15	Actionet, INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	510 contacts →
	Indirect evidence “ActioNet, Inc, headquartered in Vienna, Virginia, is a CMMI®-DEV Level 4, CMMI®-SVC Level 4, ISO ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong…” Source: RevenueBase Database · checked Sep 29, 2026
16	Blue Mantis	Partial evidence	Portsmouth, NH, United StatesHQ checked Sep 29, 2026	201-500	503 contacts →
	Partial evidence “Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization by applying…” Source: RevenueBase Database · checked Sep 29, 2026
17	Aujas Cybersecurity	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	473 contacts →
	Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 29, 2026
18	Newfire Global Partners	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 29, 2026	501-1,000	434 contacts →
	Partial evidence “Newfire Global Partners is an American IT service company forging software for the most innovative companies in the world.” Source: RevenueBase Database · checked Sep 29, 2026
19	Lohika	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 29, 2026	501-1,000	422 contacts →
	Indirect evidence “Lohika is now part of Capgemini.” Source: RevenueBase Database · checked Sep 29, 2026
20	United Security, Inc. USI	Partial evidence	Red Bank, NJ, United StatesHQ checked Sep 29, 2026	1,001-5,000	416 contacts →
	Partial evidence “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Source: RevenueBase Database · checked Sep 29, 2026
21	Eximietas Design	Strong evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	413 contacts →
	Strong evidence “Eximietas Design is a leading technology consulting and solutions development firm specializing in Chip design, Firmware & Embedded Software development, Cloud Computing, Cyber…” Source: RevenueBase Database · checked Sep 29, 2026
22	Edgewater Federal Solutions, INC	Indirect evidence	Frederick, MD, United StatesHQ checked Sep 29, 2026	501-1,000	410 contacts →
	Indirect evidence “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Source: RevenueBase Database · checked Sep 29, 2026
23	Viva USA INC	Indirect evidence	Rolling Meadows, IL, United StatesHQ checked Sep 29, 2026	501-1,000	385 contacts →
	Indirect evidence “VIVA USA Inc.(VIVA), certified Woman and Minority Owned, is a Technology and IT consulting company based in the greater Chicago area.” Source: RevenueBase Database · checked Sep 29, 2026
24	Novacoast	Strong evidence	Wichita, KS, United StatesHQ checked Sep 29, 2026	201-500	369 contacts →
	Strong evidence “Novacoast is an international cybersecurity company specializing in IT services and software development.” Source: RevenueBase Database · checked Sep 29, 2026
25	Paladion An Atos Business	Indirect evidence	Reston, VA, United StatesHQ checked Sep 29, 2026	501-1,000	369 contacts →
	Indirect evidence “As of April 2023, Paladion is part of Atos Group.” Source: RevenueBase Database · checked Sep 29, 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: secure software development firms. 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 secure software development firms.
Partial evidence: Its own public description names part of secure software development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name secure software development firms. 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 6,121 secure software development firms based in the United States

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Secure software development firms based in the United States at a glance

As of Sep 29, 2026

35.6%Verified-email coverage

16.0Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

3,216

11-50

1,981

51-200

704

201-500

124

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,121 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 firms, 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 the United States whose own description of what they do matches “secure software development firms”. 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 secure software development firms), 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 secure software development firms, and records with no verified work email. Companies headquartered outside United States 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, 34,803 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 29, 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 firms by metro

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 secure software development firms, 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 secure software development firms are there based in the United States?

RevenueBase identified 6,121 secure software development firms headquartered in the 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?

Presidio, headquartered in New York, tops this list with the largest team on record.

Which city has the most secure software development firms?

New York leads with 195 headquartered companies, followed by Houston (113) 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 34,803 verified decision-maker contacts tracked across these 6,121 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 29, 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.