Company lists · Data refreshed September 2026

Top 25 Defense technology software startups based in Herndon, United States

Name: Defense technology software startups based in Herndon, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 38 companies tracked

RevenueBase identified 38 company matches for defense technology software startups associated with Herndon, United States as of September 2026 and tracks 12,160 professional contacts across them, including 3,754 with verified work emails and 5,712 with mobile numbers. Across the United States, Huntsville is the largest hub for this category (68 companies); Herndon has 37.

This list covers company matches for defense technology software startups associated with Herndon, 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 10, 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 10, 2026 How this list was built

38Companies

12,160Contacts tracked

3,754Verified emails

5,712Mobile numbers

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

The 25 largest defense technology software startups based in Herndon, United States

Ranked by team size

Top 25 of 38 company matches for defense technology software startups based in Herndon, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 10, 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	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
2	LTS	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	356 contacts →
	Exact match “From disaster response and automated healthcare kiosks to occupational health services and federal IT consulting, we operate at the intersection of mission-critical need and…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
3	Dark Wolf	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	501-1,000	348 contacts →
	Exact match “Dark Wolf provides DevSecOps agile software development, information operations, penetration testing and incident response, applied research and rapid prototyping, machine…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
4	Sotera Defense Solutions, INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	1,001-5,000	214 contacts →
	Exact match “Sotera Defense Solutions (Sotera) has joined KeyW Corporation.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
5	Solerity	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	201-500	128 contacts →
	Exact match “Since 1991, Solerity, Inc.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
6	Netcentrics	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	122 contacts →
	Exact match “For 30 years, NetCentrics has excelled as an innovative technology solutions provider for the U.S.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
7	Nextpoint Group	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	201-500	119 contacts →
	Exact match “NextPoint Group is a mission enablement, technology focused and culture rich IT professional service provider.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
8	Foxhole Technology	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	117 contacts →
	Exact match “Foxhole Technology is a thought-leading technology firm offering a robust suite of cybersecurity, software development, systems engineering, and test & evaluation solutions for…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
9	Alku Government Solutions	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	102 contacts →
	Exact match “ALKU Government Solutions is a National Security Defense Contractor serving the defense, energy, homeland security and intelligence communities.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
10	Probity INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	97 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
11	Blackhorse Solutions	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	97 contacts →
	Exact match “BlackHorse Solutions, Inc.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
12	Qvine Corporation	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	61 contacts →
	Exact match “QVine is a leading provider of Agile software development, cloud computing, big data, and other Information Technology (IT) services in the National Security and Defense sectors.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
13	Chameleon Consulting Group LLC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	59 contacts →
	Exact match “Chameleon Consulting Group, LLC was founded by a small group of professionals with extensive experience in cyber operations, software engineering, data analysis, and physical…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
14	MKGCS	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	34 contacts →
	Exact match “MKGCS is the premier software development company for advanced, large scale mission critical systems for commercial and government applications.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
15	Rssi Onezero Solutions	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	33 contacts →
	Exact match “In October 2021, OneZero Solutions, LCC (OneZero), a leading federal cybersecurity and IT solutions provider, announced its acquisition of Right-Sized Solutions Inc.(RSSi), a…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
16	Optimal Solutions INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	29 contacts →
	Exact match “Optimal Solutions, Inc.(OSI) is a small, disadvantaged business and certified Capability Maturity Model Integration (CMMI) for Development (DEV) Level 3, International…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
17	IP Network Solutions	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	26 contacts →
	Exact match “At IPNS, we work exclusively in the Federal marketplace, providing agencies in the Civilian, Defense and Intelligence communities with advanced IT systems solutions and…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
18	Berryville Holdings, LLC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	11-50	25 contacts →
	Exact match “Berryville Holdings, LLC is a software development and services company dedicated to providing leading-edge technology solutions to customers whose security and operational…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
19	Delex Systems, INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	19 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
20	Byte Systems, LLC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	11-50	17 contacts →
	Exact match “BYTE Systems is a Government focused Veteran Owned information technology services company.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
21	KLC Network Services, INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	51-200	16 contacts →
	Exact match “KLC Network Services, Incorporated is an SBA business based in Herndon, Virginia that provides technical solutions to our valued customers.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
22	The Reckon Crew	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	1-10	9 contacts →
	Exact match “At Reckon, we are the vanguard of a new era in government IT consulting, a small but mighty startup driven by a mission to empower government agencies with cutting-edge technology…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
23	Modern Government Solutions MGS	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	11-50	9 contacts →
	Exact match “At Modern Government Solutions (MGS), we deliver mission-critical solutions that empower the Department of Defense, Intelligence Community, and federal agencies to achieve…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
24	Excel Technologies, LLC	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	11-50	6 contacts →
	Exact match “A Woman-Owned Small Business focusing on mission-oriented solutions supporting citizen and national security centric Federal programs.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase
25	Veloxxity	Exact match	Herndon, VA, United StatesHQ recorded Sep 10, 2026	1-10	3 contacts →
	Exact match “Veloxxity delivers tailored solutions that enable our clients to think and act strategically.” Recorded in the RevenueBase company graph · Sep 10, 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 “defense technology software startups”. 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 25 of 38 defense technology software startups based in Herndon, United States

See the full list, filter by size, metro and specialty, and access 3,754 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense technology software startups based in Herndon, United States at a glance

As of Sep 10, 2026

30.9%Verified-email coverage

47.0%Mobile-number coverage

320.0Average contacts per company

51-200Median size (employees)

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

3,3150–30

25731–60

261–90

090–180

180180+

Company record updated

Median 73.0d

00–30

3,89131–60

6,39961–90

1,39490–180

476180+

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 Herndon, United States whose business descriptions match “defense technology software startups” 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 3,754 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 10, 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.

Defense technology software startups 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 “defense technology software startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defense technology software startups are there based in Herndon, United States?

RevenueBase identified 38 company matches for defense technology software startups associated with Herndon, 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?

Mantech 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 defense technology software startups?

Huntsville leads the United States with 68 company records, followed by Reston (47) and Washington (46). Herndon has 37.

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 3,754 professional contacts with verified work emails tracked across these 38 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 10, 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.