Company lists · Data refreshed November 2026

Top 25 Information technology services based in Herndon, United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 155 companies tracked

RevenueBase identified 155 company matches for information technology services associated with Herndon, United States as of November 2026 and tracks 16,313 professional contacts across them, including 5,255 with verified work emails. Across the United States, New York is the largest hub for this category (943 companies); Herndon has 155.

This list covers company matches for information technology services 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 November 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

155Companies

16,313Contacts tracked

5,255Verified emails

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The 25 largest information technology services based in Herndon, United States

Ranked by team size

Top 25 of 155 company matches for information technology services based in Herndon, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026	5,001-10,000	10,193 contacts →
	Exact match “About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Eplus INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,901 contacts →
	Exact match “ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	LTS	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	374 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 · Nov 6, 2026 · View company records in RevenueBase
4	TD Synnex Public Sector	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	201-500	312 contacts →
	Exact match “For more than 30 years, TD SYNNEX Public Sector has been dedicated to accelerating public sector growth for technology companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	EMW	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	141 contacts →
	Exact match “EMW was founded in 1995 by engineers and managers who formerly held senior positions in well known telecommunications and information technology companies to pursue their vision…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Attainx, INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	140 contacts →
	Exact match “AttainX is an SBA certified 8a / EDWOSB / WOSB and CMMI L3, ISO 9001:201, QMS certified company that delivers information technology solutions to Federal and state agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Nextpoint Group	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	201-500	139 contacts →
	Exact match “NextPoint Group is a mission enablement, technology focused and culture rich IT professional service provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Idea Entity	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	125 contacts →
	Exact match “Idea Entity makes ideas real through the application of technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Vista Applied Solutions Group INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	201-500	124 contacts →
	Exact match “VASG Inc has a strong reputation as a business and information technology consulting company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Foxhole Technology	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	115 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 · Nov 6, 2026 · View company records in RevenueBase
11	Indigo IT LLC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	104 contacts →
	Exact match “Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Truestone, LLC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	99 contacts →
	Exact match “Truestone provides full lifecycle, business driven technology and information security-oriented services and solutions across the public and private sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Makpar	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	84 contacts →
	Exact match “Makpar is a comprehensive professional and technical solutions provider for the Federal government.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	SSA Tech INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	201-500	74 contacts →
	Exact match “SSA Tech Inc is an IT Technical consulting solutions and services provider with proven expertise across various technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Ascella Technologies, INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	68 contacts →
	Exact match “Who We Are Ascella's founders are all veterans of the IT industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Reston Consulting Group, INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	67 contacts →
	Exact match “Network Design * Engineering * Integration * Operations * Security RCG has more than 35 years' experience supporting some of the world's largest and most highly visible IT…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Allwyn Corporation	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “Allwyn Corporation, headquartered in Washington DC, was founded in 2003 with a mission to help customers solve complex technology problems by bringing tools, technologies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Akima Global Technology	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	61 contacts →
	Exact match “Akima Global Technology is a technology solutions, program management and support company that collaborates with technology partners and the Federal Government to deliver IT…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Lore Systems	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	51 contacts →
	Exact match “Lore Systems has been providing IT professional services (managed services, network engineering, hosting and colocation, cloud computing) to hundreds of government, commercial…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Synapse Business Systems, INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	49 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Solution Street	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	47 contacts →
	Exact match “We are a passionate team of builders and problem solvers!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Etelligent Group	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “15+ Years of Trusted IT Solutions for Federal Agencies- Data Security & Management: Safeguarding sensitive information with scalable, reliable solutions - Scalable Identity…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Network Depot	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	38 contacts →
	Exact match “Network Depot has been serving the DC Metro area since 1991, providing technical support and cybersecurity consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Sphinx Solutions INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	11-50	38 contacts →
	Exact match “Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	L2t, LLC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	51-200	38 contacts →
	Exact match “L2T is a rapidly growing technology company located in Herndon, VA, taking pride in our technical excellence as well as premium customer support.” Recorded in the RevenueBase company graph · Nov 6, 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 “information technology services”. 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 155 information technology services based in Herndon, United States

See the full list, filter by size, metro and specialty, and access 5,255 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information technology services based in Herndon, United States at a glance

As of Nov 6, 2026

32.2%Verified-email coverage

105.2Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 155 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 Herndon, United States whose business descriptions match “information technology services” 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 5,255 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 November 6, 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.

Information technology services 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 “information technology services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information technology services are there based in Herndon, United States?

RevenueBase identified 155 company matches for information technology services associated with Herndon, United States as of November 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 information technology services?

New York leads the United States with 943 company records, followed by Houston (650) and Atlanta (445). Herndon has 155.

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 5,255 professional contacts with verified work emails tracked across these 155 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 November 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.