Company lists · Data refreshed September 2026

Top 16 Cybersecurity contractors based in Manassas, United States

Name: Cybersecurity contractors based in Manassas, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 31 companies tracked

RevenueBase identified 31 company matches for cybersecurity contractors associated with Manassas, United States as of September 2026 and tracks 1,270 professional contacts across them, including 150 with verified work emails. Across the United States, New York is the largest hub for this category (293 companies); Manassas has 31.

This list covers company matches for cybersecurity contractors associated with Manassas, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

31Companies

1,270Contacts tracked

150Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 16 largest cybersecurity contractors based in Manassas, United States

Ranked by team size

Top 16 of 31 company matches for cybersecurity contractors based in Manassas, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ISCI	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	201-500	446 contacts →
	Exact match “Since 2001, Information Sciences Consulting, Inc.(ISCI) has earned an exemplary reputation for providing superior customer service to our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Progeny Systems-A General Dynamics Mission Systems Business	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	201-500	373 contacts →
	Exact match “Progeny Systems is a business area of General Dynamics Mission Systems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Broadleaf, INC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	114 contacts →
	Exact match “ASRC Federal has acquired Broadleaf, Inc, a leading information technology services company that provides cybersecurity, network engineering, cloud migration, training and program…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Evigilant Security NOW Evolver	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	51-200	68 contacts →
	Exact match “eVigilant is now Evolver!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	EMD LLC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	23 contacts →
	Exact match “EMD LLC is a service disabled veteran, woman-owned, economically disadvantaged small business that provides consulting and contracting services to help fulfill the ever increasing…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Slamm Technologies	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	1-10	23 contacts →
	Exact match “SLAMM Technologies is an IT organization based in the United States and Ghana, providing cybersecurity, IT, and technology infrastructure services to businesses and organizations…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Defense Engineering INC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	51-200	22 contacts →
	Exact match “For over two decades, Defense Engineering Inc.(DEi) has delivered innovative enterprise IT engineering and mission-focused technology solutions to the Federal Government.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Force Security Solutions LLC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	15 contacts →
	Exact match “Force Security Solutions provides the highest level of Electronic Security including Intrusion Detection, Access Control and IP Video Surveillance technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	BRCI	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	14 contacts →
	Exact match “BRCI is a turnkey-systems integrator providing design, installation, and integration of public security and safety systems including: • Access Control • Intrusion Detection…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Mountchor Technologies Delivering Innovative Solutions For Cybersecurity & Fire & Life Safety	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	51-200	14 contacts →
	Exact match “MountChor Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Applica Solutions, INC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	51-200	12 contacts →
	Exact match “Applica Solutions, Inc.(Applica), an ISO 9001:2015, ISO ISO 27001:2022 certified, CMMI Level 3 Appraised for SVC and DEV, CMMC Level 2 self-assessed, SBA certified HUBZone, has…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Signal Hill Technologies	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “Adapt to an evolving cybersecurity landscape.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Eccn INC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match “ECCN is a minority and women owned organization founded in 2010.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Integrated Access Control Services, INC	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	4 contacts →
	Exact match “Since 2001 Integrated Access Control Services Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	HILO	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	11-50	3 contacts →
	Exact match “To be prepared for the inevitable, knowledge of how and where adversaries will strike is critical.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Trusted Consulting Solutions	Exact match	Manassas, VA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “Trusted Consulting Solutions is a women-owned cybersecurity company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 16 of 31 cybersecurity contractors based in Manassas, United States

See the full list, filter by size, metro and specialty, and access 150 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Cybersecurity contractors based in Manassas, United States at a glance

As of Sep 21, 2026

11.8%Verified-email coverage

41.0Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Manassas, so it is reported there. Company counts and contact totals on this page are exact for Manassas, over 31 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Manassas, United States whose business descriptions match “cybersecurity contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 150 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Cybersecurity contractors by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity contractors are there based in Manassas, United States?

RevenueBase identified 31 company matches for cybersecurity contractors associated with Manassas, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ISCI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most cybersecurity contractors?

New York leads the United States with 293 company records, followed by Washington (220) and Austin (170). Manassas has 31.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 150 professional contacts with verified work emails tracked across these 31 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 31 cybersecurity contractors based in Manassas, United States. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity contractors by geography

Browse the directory

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.