Company lists · Data refreshed September 2026
Top 20 Federal contractors based in Mclean, United States
RevenueBase identified 31 company matches for federal contractors associated with Mclean, United States as of September 2026 and tracks 14,322 professional contacts across them, including 1,449 with verified work emails. Across the United States, Washington is the largest hub for this category (35 companies); Mclean has 31.
This list covers company matches for federal contractors associated with Mclean, 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 16, 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.
The 20 largest federal contractors based in Mclean, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,964 contacts → | ||||
Exact match “DynCorp International is now part of Amentum.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 1,899 contacts → | ||||
Exact match “Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 478 contacts → | ||||
Exact match “J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 349 contacts → | ||||
Exact match “OBXtek is a relationship-driven information technology and diversified professional services company.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 236 contacts → | ||||
Exact match “Zachary Piper Solutions (ZPS) provides technical and professional services in support of the United States government across six key sectors: Intelligence, Defense, Energy…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 223 contacts → | ||||
Exact match “We modernize legacy infrastructure, secure mission-critical systems and design digital experiences that impact millions of federal workers & American citizens every day.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 176 contacts → | ||||
Exact match “BE is a trusted partner on missions of vital importance to our customers, the nation and the world.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 152 contacts → | ||||
Exact match “Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 72 contacts → | ||||
Exact match “E3/Sentinel, a NewSpring Holdings company, is a mission-focused services and solutions company headquartered in McLean, VA.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 69 contacts → | ||||
Exact match “Trowbridge & Trowbridge, An Agile Defense Company, delivers transformational technology solutions that anticipate emerging requirements, increase operational efficiencies and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 60 contacts → | ||||
Exact match “ZenPoint is a small, 8(a) certified, woman-owned IT Services company.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 57 contacts → | ||||
Exact match “OCT Consulting LLC is a Small Business providing professional services and information technology solutions to U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 45 contacts → | ||||
Exact match “Blackwatch is a small business headquartered in Mclean, VA with offices in O'Fallon, IL and Carmichael, CA.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 42 contacts → | ||||
Exact match “Infinity Technology, LLC, is a certified 8(a), Service-Disabled Veteran-Owned, Small Disadvantaged Business.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 31 contacts → | ||||
Exact match “MSI provides unique mission support requirements for U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 22 contacts → | ||||
Exact match “EnDyna provides innovative solutions to government agencies, backed by our strong commitment to quality.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 18 contacts → | ||||
Exact match “Sunrays International is a globally-integrated consulting, program management and shared services provider.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “ViaTech Systems, Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “Roffman Horvitz, PLC is a law firm focused on assisting government contractors in complying with the laws and regulations that are enforced by the U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match “GRYT Contracting (GRYT) is a privately held woman and minority-owned SBA 8(a) Small Disadvantaged Business (SDB), WOSB & EDWOSB.” Recorded in the RevenueBase company graph · Sep 16, 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 “federal 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 20 of 31 federal contractors based in Mclean, United States
See the full list, filter by size, metro and specialty, and access 1,449 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Federal contractors based in Mclean, United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Mclean, so it is reported there. Company counts and contact totals on this page are exact for Mclean, 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 Mclean, United States whose business descriptions match “federal 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 1,449 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 16, 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.
Federal 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 “federal contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many federal contractors are there based in Mclean, United States?
RevenueBase identified 31 company matches for federal contractors associated with Mclean, 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?
Dyncorp International 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 federal contractors?
Washington leads the United States with 35 company records, followed by Herndon (33) and Mclean (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 1,449 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 31 federal contractors based in Mclean, United States. Start with a free account, no credit card.
Download this list →Related lists
Federal contractors by geography
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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.
More company lists
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- New lists
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Company intelligence · public preview
Top 20 federal contractors based in Mclean, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 31 matching company records for federal contractors based in Mclean, United States, with 14,322 tracked contacts and 1,449 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 federal contractors based in Mclean, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Dyncorp Internationaldyn-intl.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 9,964 contacts → |
“DynCorp International is now part of Amentum.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  American Systemsamericansystems.comHQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,899 contacts → |
“Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | J&j Worldwide Servicescbregds.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 478 contacts → |
“J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Obxtekobxtek.comHQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 349 contacts → |
“OBXtek is a relationship-driven information technology and diversified professional services company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Zachary Piper Solutionszacharypiper.comHQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 236 contacts → |
“Zachary Piper Solutions (ZPS) provides technical and professional services in support of the United States government across six key sectors: Intelligence, Defense, Energy…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cybermedia Technologies, LLC Ctecctec-corp.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 223 contacts → |
“We modernize legacy infrastructure, secure mission-critical systems and design digital experiences that impact millions of federal workers & American citizens every day.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Be, INCteambe.usHQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 176 contacts → |
“BE is a trusted partner on missions of vital importance to our customers, the nation and the world.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Valiant Solutionsvaliantsolutions.comHQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 152 contacts → |
“Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  E3 Federal Solutionsavantusfederal.comHQ: Mclean, VA, United StatesReported employees: 501-1,000 | Mclean, VA, United States | 501-1,000 | Exact match | 72 contacts → |
“E3/Sentinel, a NewSpring Holdings company, is a mission-focused services and solutions company headquartered in McLean, VA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Trowbridge & Trowbridge Llc, An Agile Defense Companyagiledefense.comHQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 69 contacts → |
“Trowbridge & Trowbridge, An Agile Defense Company, delivers transformational technology solutions that anticipate emerging requirements, increase operational efficiencies and…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Zenpoint Solutions LLCzpsolutions.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 60 contacts → |
“ZenPoint is a small, 8(a) certified, woman-owned IT Services company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  OCT Consulting LLCoctconsulting.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 57 contacts → |
“OCT Consulting LLC is a Small Business providing professional services and information technology solutions to U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Blackwatch International Corporationblackwatchintel.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 45 contacts → |
“Blackwatch is a small business headquartered in Mclean, VA with offices in O'Fallon, IL and Carmichael, CA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Infinity Technology, LLCitllc.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 42 contacts → |
“Infinity Technology, LLC, is a certified 8(a), Service-Disabled Veteran-Owned, Small Disadvantaged Business.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mission Services LLC MSImissions2i.com HQ: Mclean, VA, United StatesReported employees: 11-50 | Mclean, VA, United States | 11-50 | Exact match | 31 contacts → |
“MSI provides unique mission support requirements for U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Endyna INCendyna.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 22 contacts → |
“EnDyna provides innovative solutions to government agencies, backed by our strong commitment to quality.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Sunrays Internationalsunraysint.comHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 18 contacts → |
“Sunrays International is a globally-integrated consulting, program management and shared services provider.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Viatech Systemsviatech-systems.netHQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 9 contacts → |
“ViaTech Systems, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Roffman Horvitz, PLCroffmanhorvitz.com HQ: Mclean, VA, United StatesReported employees: 1-10 | Mclean, VA, United States | 1-10 | Exact match | 5 contacts → |
“Roffman Horvitz, PLC is a law firm focused on assisting government contractors in complying with the laws and regulations that are enforced by the U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Gryt Contractinggrytcontracting.com HQ: Mclean, VA, United StatesReported employees: 1-10 | Mclean, VA, United States | 1-10 | Exact match | 4 contacts → |
“GRYT Contracting (GRYT) is a privately held woman and minority-owned SBA 8(a) Small Disadvantaged Business (SDB), WOSB & EDWOSB.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 31 company matches
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Federal contractors: dataset insights
September 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
31 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Mclean, so it is reported there. Company counts and contact totals on this page are exact for Mclean, over 31 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Federal contractors by metro in the United States
Questions about this company list
What does Exact match mean for federal contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many federal contractors did RevenueBase find based in Mclean, United States?
The saved snapshot records 31 matching company records, 14,322 tracked contacts and 1,449 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Federal contractors by geography
- Federal contractors based in Alexandria, United States
- Federal contractors based in Chantilly, United States
- Federal contractors based in Fairfax, United States
- Federal contractors based in Herndon, United States
- Federal contractors based in Reston, United States
- Federal contractors based in Washington, United States
- Federal contractors based in the United States
Cite this list
RevenueBase Data Team. Top 20 federal contractors based in Mclean, United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/federal-contractors/united-states/mclean.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Federal contractors based in Alexandria, United States
- Federal contractors based in Chantilly, United States
- Federal contractors based in Fairfax, United States
- Federal contractors based in Herndon, United States
- Federal contractors based in Reston, United States
- Federal contractors based in Washington, United States
Company intelligence · public preview
Top 20 federal contractors based in Mclean, United States
RevenueBase records 31 matching company records for federal contractors based in Mclean, United States, with 14,322 tracked contacts and 1,449 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 federal contractors based in Mclean, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Dyncorp Internationaldyn-intl.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 9,964 contacts → |
“DynCorp International is now part of Amentum.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | American Systemsamericansystems.com HQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,899 contacts → |
“Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | J&j Worldwide Servicescbregds.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 478 contacts → |
“J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Obxtekobxtek.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 349 contacts → |
“OBXtek is a relationship-driven information technology and diversified professional services company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Zachary Piper Solutionszacharypiper.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 236 contacts → |
“Zachary Piper Solutions (ZPS) provides technical and professional services in support of the United States government across six key sectors: Intelligence, Defense, Energy…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cybermedia Technologies, LLC Ctecctec-corp.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 223 contacts → |
“We modernize legacy infrastructure, secure mission-critical systems and design digital experiences that impact millions of federal workers & American citizens every day.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Be, INCteambe.us HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 176 contacts → |
“BE is a trusted partner on missions of vital importance to our customers, the nation and the world.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Valiant Solutionsvaliantsolutions.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 152 contacts → |
“Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | E3 Federal Solutionsavantusfederal.com HQ: Mclean, VA, United StatesReported employees: 501-1,000 | Mclean, VA, United States | 501-1,000 | Exact match | 72 contacts → |
“E3/Sentinel, a NewSpring Holdings company, is a mission-focused services and solutions company headquartered in McLean, VA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Trowbridge & Trowbridge Llc, An Agile Defense Companyagiledefense.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 69 contacts → |
“Trowbridge & Trowbridge, An Agile Defense Company, delivers transformational technology solutions that anticipate emerging requirements, increase operational efficiencies and…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Zenpoint Solutions LLCzpsolutions.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 60 contacts → |
“ZenPoint is a small, 8(a) certified, woman-owned IT Services company.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | OCT Consulting LLCoctconsulting.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 57 contacts → |
“OCT Consulting LLC is a Small Business providing professional services and information technology solutions to U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Blackwatch International Corporationblackwatchintel.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 45 contacts → |
“Blackwatch is a small business headquartered in Mclean, VA with offices in O'Fallon, IL and Carmichael, CA.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Infinity Technology, LLCitllc.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 42 contacts → |
“Infinity Technology, LLC, is a certified 8(a), Service-Disabled Veteran-Owned, Small Disadvantaged Business.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Mission Services LLC MSImissions2i.com HQ: Mclean, VA, United StatesReported employees: 11-50 | Mclean, VA, United States | 11-50 | Exact match | 31 contacts → |
“MSI provides unique mission support requirements for U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Endyna INCendyna.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 22 contacts → |
“EnDyna provides innovative solutions to government agencies, backed by our strong commitment to quality.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sunrays Internationalsunraysint.com HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 18 contacts → |
“Sunrays International is a globally-integrated consulting, program management and shared services provider.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Viatech Systemsviatech-systems.net HQ: Mclean, VA, United StatesReported employees: 51-200 | Mclean, VA, United States | 51-200 | Exact match | 9 contacts → |
“ViaTech Systems, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Roffman Horvitz, PLCroffmanhorvitz.com HQ: Mclean, VA, United StatesReported employees: 1-10 | Mclean, VA, United States | 1-10 | Exact match | 5 contacts → |
“Roffman Horvitz, PLC is a law firm focused on assisting government contractors in complying with the laws and regulations that are enforced by the U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Gryt Contractinggrytcontracting.com HQ: Mclean, VA, United StatesReported employees: 1-10 | Mclean, VA, United States | 1-10 | Exact match | 4 contacts → |
“GRYT Contracting (GRYT) is a privately held woman and minority-owned SBA 8(a) Small Disadvantaged Business (SDB), WOSB & EDWOSB.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 31 company matches
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Federal contractors: dataset insights
September 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
31 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Mclean, so it is reported there. Company counts and contact totals on this page are exact for Mclean, over 31 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Federal contractors by metro in the United States
Questions about this company list
What does Exact match mean for federal contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many federal contractors did RevenueBase find based in Mclean, United States?
The saved snapshot records 31 matching company records, 14,322 tracked contacts and 1,449 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 20 federal contractors based in Mclean, United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/federal-contractors/united-states/mclean.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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