Company lists · Data refreshed September 2026

Top 25 Secure software development companies based in Fairfax, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 48 companies tracked

RevenueBase identified 48 secure software development companies headquartered in Fairfax, United States as of September 2026 and tracks 1,111 professional contacts across them, including 408 with verified work emails. New York is the largest hub.

This list covers secure software development companies headquartered in Fairfax, 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

48Companies

1,111Contacts tracked

408Verified emails

Explore all 48 companies → Free signup · no credit card · 500 free credits

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

Ranked by team size

Top 25 of 48 secure software development companies based in Fairfax, 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	ICS Nett, Inc. ICSIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	140
	“ICS is a strategically diversified technology solutions company operating in different markets serving both Federal and Commercial clients with innovations that span…” Source: company website · checked Sep 6, 2026
2	OnpointPartial evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	104
	“OnPoint is a technology and consulting services partner helping government leaders secure their systems, effectively operate, and deliver critical services in today’s increasingly…” Source: company website · checked Sep 6, 2026
3	Chainbridge SolutionsStrong evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	91
	“Founded in 2010, Chainbridge Solutions is a mission-focused technology company delivering secure, mission-critical software and services for federal agencies.” Source: company website · checked Sep 6, 2026
4	JCS Solutions LLCIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	81
	“JCS Solutions is a premier cybersecurity and technology solutions provider.” Source: company website · checked Sep 6, 2026
5	Tiber Creek Consulting, INCIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	201-500	73
	“Tiber Creek Consulting Inc.” Source: company website · checked Sep 6, 2026
6	InforelianceIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	201-500	70
	“When organizations need to be on time-and on budget-they call InfoReliance.” Source: company website · checked Sep 6, 2026
7	True Zero TechnologiesIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	53
	“True Zero Technologies ("True Zero") is a seasoned, Veteran-Owned Small Business (VOSB) specializing in comprehensive cybersecurity and consulting services.” Source: company website · checked Sep 6, 2026
8	Stratus Technology Integration ServicesStrong evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	49
	“Stratus Technology Integration Services, LLC (Stratus) is a certified small business that was founded in 2014 and has been providing software development, security services and…” Source: company website · checked Sep 6, 2026
9	Usmax CorporationIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	39
	“USmax Corporation is an ISO 9001:2015 registered, ISO registered, ISO 27001:2013 registered, and CMMI-SVC Level 3 appraised Enterprise Information Technology (IT) and Professional…” Source: company website · checked Sep 6, 2026
10	ZimpaticaPartial evidence	Fairfax, United StatesHQ checked Sep 6, 2026	11-50	30
	“Zimpatica focuses on modernizing businesses by creating and tailoring software solutions.” Source: company website · checked Sep 6, 2026
11	Moriarty And Associates Consulting CorporationIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	30
	“Moriarty and Associates Consulting Corporation (MAC) is a U.S-based technology company supporting dynamic, complex environments within the military, intelligence, and private…” Source: company website · checked Sep 6, 2026
12	HarmonytechIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	25
	“HarmonyTech is a leading-edge IT professional services provider that is ISO 9001:2015 registered, CMMI DEV /SVC 3 appraised, that specializes in Agile/DevSecOps Delivery, App Dev…” Source: company website · checked Sep 6, 2026
13	Zeva IncorporatedIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	24
	“Zeva Inc.” Source: company website · checked Sep 6, 2026
14	Total Cyber SolutionsIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	1-10	23
	“We provide Vulnerability services including: Vulnerability Assessments Penetration Testing Compliance and Policy Analysis Cybersecurity as a Service (also known as MSP) Cloud…” Source: company website · checked Sep 6, 2026
15	Intellisoft TechnologiesIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	1,001-5,000	20
	“Empowering Innovation with Intellisoft Technologies, Inc.” Source: company website · checked Sep 6, 2026
16	Senet InternationalPartial evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	16
	“SeNet International Corporation is a company of information technology consulting professionals committed to helping public and private sector organizations securely operate their…” Source: company website · checked Sep 6, 2026
17	Polito, INCIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	15
	Source: company website · checked Sep 6, 2026
18	Lp3Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	51-200	14
	“LP3 is a highly experienced cyber and integration company with offices in Fairfax, VA, Syracuse, NY, St.” Source: company website · checked Sep 6, 2026
19	TellengerStrong evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	13
	“Tellenger specializes in software development, enterprise IT and cloud solutions.” Source: company website · checked Sep 6, 2026
20	AssuritIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	13
	“CMMC Level 2 \| CAGE 6VE87 \| UEI DL3JL6J1XG98 \| SBA 8(a)\| 8(a) STARS \| HACS SINs \| CMMI-SVC \| ISO 9001 \| ISO 27001 \| ISO \| Assurit, an 8(a) certified and recognized leader in…” Source: company website · checked Sep 6, 2026
21	Information Analysis IncorporatedIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	11
	“Tellenger, Inc.(formerly Information Analysis Incorporated) is a wholly owned subsidiary subsidiary of WaveDancer, a publicly traded company (NASDAQ: WAVD), and certified small…” Source: company website · checked Sep 6, 2026
22	Elite Systems INCStrong evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	9
	“Systems Integration, Cloud Migration, Software Development, Network Security, Applications Security, Industrial Cyber Security Quality Assurance, RF Benchmark, Wireless…” Source: company website · checked Sep 6, 2026
23	Deci TechnologyPartial evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	11-50	9
	“IT consulting company providing cyber security, analytics and data science services.” Source: company website · checked Sep 6, 2026
24	CapsentinelIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	1-10	6
	“CapSentinel is a Small Business that offers world class Information Technology (IT) Risk, Cybersecurity, and financial management solutions to help commercial and federal…” Source: company website · checked Sep 6, 2026
25	InnotacIndirect evidence	Fairfax, VA, United StatesHQ checked Sep 6, 2026	1-10	5
	“Founded in Innotac, Inc is a Washington, DC-based high tech company dedicated to delivering innovative solutions to today’s enterprise.” Source: company website · checked Sep 6, 2026

Showing 25 of 48 secure software development companies based in Fairfax, United States

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

As of Sep 6, 2026

11-50Median 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

1,001-5,000

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 Fairfax, over 48 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 Fairfax, 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 Fairfax 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, 408 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 Fairfax, United States?

RevenueBase identified 48 secure software development companies headquartered in Fairfax, 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?

ICS Nett, Inc. ICS, headquartered in Fairfax, 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 408 verified decision-maker contacts tracked across these 48 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.