Company lists · Data refreshed September 2026
Top 25 Security clearance staffing firms based in the United States
RevenueBase identified 465 company matches for security clearance staffing firms associated with the United States as of September 2026 and tracks 17,625 professional contacts across them, including 2,317 with verified work emails. Washington is the largest hub.
This list covers company matches for security clearance staffing firms associated with the 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 29, 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 25 largest security clearance staffing firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,853 contacts → | ||||
Exact match “As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 1,474 contacts → | ||||
Exact match “GIS | HireRight was established in 1966 and is one of the nation's oldest and largest background screening providers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 677 contacts → | ||||
Exact match “OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 541 contacts → | ||||
Exact match “A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 433 contacts → | ||||
Exact match “ClearanceJobs.com the largest security-cleared career network, specializes in defense jobs for professionals with security clearances.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 389 contacts → | ||||
Exact match “Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 338 contacts → | ||||
Exact match “For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 337 contacts → | ||||
Exact match “CTR Group provides staffing and recruiting services across the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 327 contacts → | ||||
Exact match “Founded in 1989, The Midtown Group pioneers 360-degree staffing services and solutions for organizations across both public and private sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 326 contacts → | ||||
Exact match “Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 313 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 283 contacts → | ||||
Exact match “We're more than a staffing company.We're more than a security company.We're more than a temporary agency.We are your Custom Employment Solution!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 254 contacts → | ||||
Exact match “From defense to civilian agencies, we provide staffing solutions that meet the demands of federal, local and state agencies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 252 contacts → | ||||
Exact match “ADC supports government and corporate clients with two primary services - personnel security, ranging from pre-employment checks to comprehensive background investigations and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 207 contacts → | ||||
Exact match “Luke & Associates (Luke) is a trusted provider of healthcare and professional services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 203 contacts → | ||||
Exact match “As the U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 199 contacts → | ||||
Exact match “NVT Staffing is a direct reflection of the rapid growth and expansion of our parent company, Northern Virginia Temporaries, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 198 contacts → | ||||
Exact match “Paladin Consulting is a nationwide Talent Acquisition and Placement consulting firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 194 contacts → | ||||
Exact match “TAG PGS, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 153 contacts → | ||||
Exact match “Founded in 2002, headquartered in Reston, VA, Quadrant, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 143 contacts → | ||||
Exact match “iWorks Corporation, founded in 2005, is a leading provider of information technology and professional services to the federal government.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 142 contacts → | ||||
Exact match “Corporate Job Bank has built our business and reputation since 1985 by finding the best people.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 137 contacts → | ||||
Exact match “Vault Workforce Screening was acquired by Sterling on January 2, 2024.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 120 contacts → | ||||
Exact match “Excel Security Corp.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 115 contacts → | ||||
Exact match “Founded in 1993, Vitaver and Associates offers three decades of expertise in professional recruitment services.” Recorded in the RevenueBase company graph · Sep 29, 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 “security clearance staffing firms”. 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 465 security clearance staffing firms based in the United States
See the full list, filter by size, metro and specialty, and access 2,317 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Security clearance staffing firms based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 465 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 the United States whose business descriptions match “security clearance staffing firms” 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 2,317 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 29, 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.
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 “security clearance staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security clearance staffing firms are there based in the United States?
RevenueBase identified 465 company matches for security clearance staffing firms associated with the 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?
Chenega Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most security clearance staffing firms?
Washington leads with 18 company records, followed by Reston (10) and Fairfax (8).
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 2,317 professional contacts with verified work emails tracked across these 465 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 465 security clearance staffing firms based in the United States. Start with a free account, no credit card.
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Security clearance staffing firms by geography
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security clearance staffing firms based in Australia
- Security clearance staffing firms based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 security clearance staffing firms based in the 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 465 matching company records for security clearance staffing firms based in the United States, with 17,625 tracked contacts and 2,317 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 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 25 security clearance staffing firms based in the 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 |  Chenega Corporationchenega.comHQ: Anchorage, AK, United StatesReported employees: 5,001-10,000 | Anchorage, AK, United States | 5,001-10,000 | Exact match | 1,853 contacts → |
“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  GISgeninfo.comHQ: Irvine, CA, United StatesReported employees: 1,001-5,000 | Irvine, CA, United States | 1,001-5,000 | Exact match | 1,474 contacts → |
“GIS | HireRight was established in 1966 and is one of the nation's oldest and largest background screening providers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Omniplex World Services Corporationomniplex.comHQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 677 contacts → |
“OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Tech USAtechusa.netHQ: Millersville, MD, United StatesReported employees: 501-1,000 | Millersville, MD, United States | 501-1,000 | Exact match | 541 contacts → |
“A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Clearancejobsclearancejobs.com HQ: Centennial, CO, United StatesReported employees: 51-200 | Centennial, CO, United States | 51-200 | Exact match | 433 contacts → |
“ClearanceJobs.com the largest security-cleared career network, specializes in defense jobs for professionals with security clearances.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Softworld, A Kelly Companysoftworldinc.comHQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 389 contacts → |
“Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Master Securitymastersecurity.usHQ: Hunt Valley, MD, United StatesReported employees: 201-500 | Hunt Valley, MD, United States | 201-500 | Exact match | 338 contacts → |
“For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  CTR Groupctrc.comHQ: Newport News, VA, United StatesReported employees: 201-500 | Newport News, VA, United States | 201-500 | Exact match | 337 contacts → |
“CTR Group provides staffing and recruiting services across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  The Midtown Groupthemidtowngroup.comHQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 327 contacts → |
“Founded in 1989, The Midtown Group pioneers 360-degree staffing services and solutions for organizations across both public and private sectors.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Peerless Technologies Corporationepeerless.com HQ: Fairborn, OH, United StatesReported employees: 201-500 | Fairborn, OH, United States | 201-500 | Exact match | 326 contacts → |
“Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Cambay Consulting LLCcambaycs.comHQ: Katy, TX, United StatesReported employees: 1,001-5,000 | Katy, TX, United States | 1,001-5,000 | Exact match | 313 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Job1usajob1usa.comHQ: Toledo, OH, United StatesReported employees: 1,001-5,000 | Toledo, OH, United States | 1,001-5,000 | Exact match | 283 contacts → |
“We're more than a staffing company.We're more than a security company.We're more than a temporary agency.We are your Custom Employment Solution!” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Abbtechabbtech.comHQ: Sterling, VA, United StatesReported employees: 201-500 | Sterling, VA, United States | 201-500 | Exact match | 254 contacts → |
“From defense to civilian agencies, we provide staffing solutions that meet the demands of federal, local and state agencies.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ADC LTD NMadcltdnm.comHQ: Albuquerque, NM, United StatesReported employees: 501-1,000 | Albuquerque, NM, United States | 501-1,000 | Exact match | 252 contacts → |
“ADC supports government and corporate clients with two primary services - personnel security, ranging from pre-employment checks to comprehensive background investigations and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Luke Staffinglukestaffing.comHQ: Rockledge, FL, United StatesReported employees: 1,001-5,000 | Rockledge, FL, United States | 1,001-5,000 | Exact match | 207 contacts → |
“Luke & Associates (Luke) is a trusted provider of healthcare and professional services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Acts-Aviation Securityacts-sec.comHQ: Des Plaines, IL, United StatesReported employees: 1,001-5,000 | Des Plaines, IL, United States | 1,001-5,000 | Exact match | 203 contacts → |
“As the U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  NVT Staffing, INCnvtstaffing.comHQ: Falls Church, VA, United StatesReported employees: 501-1,000 | Falls Church, VA, United States | 501-1,000 | Exact match | 199 contacts → |
“NVT Staffing is a direct reflection of the rapid growth and expansion of our parent company, Northern Virginia Temporaries, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Paladin Consultingpaladininc.comHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 198 contacts → |
“Paladin Consulting is a nationwide Talent Acquisition and Placement consulting firm.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TAD Pgs, INCtadpgs.com HQ: Bradenton, FL, United StatesReported employees: 51-200 | Bradenton, FL, United States | 51-200 | Exact match | 194 contacts → |
“TAG PGS, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Quadrant, INCquadrantinc.comHQ: Reston, VA, United StatesReported employees: 501-1,000 | Reston, VA, United States | 501-1,000 | Exact match | 153 contacts → |
“Founded in 2002, headquartered in Reston, VA, Quadrant, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Iworks Corporationiworkscorp.com HQ: Reston, VA, United StatesReported employees: 51-200 | Reston, VA, United States | 51-200 | Exact match | 143 contacts → |
“iWorks Corporation, founded in 2005, is a leading provider of information technology and professional services to the federal government.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Corporate JOB Bankcorporatejobbank.comHQ: Tempe, AZ, United StatesReported employees: 1,001-5,000 | Tempe, AZ, United States | 1,001-5,000 | Exact match | 142 contacts → |
“Corporate Job Bank has built our business and reputation since 1985 by finding the best people.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Vault Workforce Screening, A First Advantage Companyvaulthealth.comHQ: Coral Gables, FL, United StatesReported employees: 201-500 | Coral Gables, FL, United States | 201-500 | Exact match | 137 contacts → |
“Vault Workforce Screening was acquired by Sterling on January 2, 2024.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Excel Security Corporationexcelsecurity.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 120 contacts → |
“Excel Security Corp.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Fort Lauderdale, FL, United StatesReported employees: 51-200 | Fort Lauderdale, FL, United States | 51-200 | Exact match | 115 contacts → |
“Founded in 1993, Vitaver and Associates offers three decades of expertise in professional recruitment services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 465 company matches
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Security clearance staffing firms: dataset insights
September 29, 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
465 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 465 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 29, 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 ↗
Questions about this company list
What does Exact match mean for security clearance staffing firms?
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 security clearance staffing firms did RevenueBase find based in the United States?
The saved snapshot records 465 matching company records, 17,625 tracked contacts and 2,317 verified emails. The public preview displays 25 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 29, 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
Security clearance staffing firms by geography
Cite this list
RevenueBase Data Team. Top 25 security clearance staffing firms based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-clearance-staffing-firms/united-states.
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
- Security clearance staffing firms based in Australia
- Security clearance staffing firms based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 security clearance staffing firms based in the United States
RevenueBase records 465 matching company records for security clearance staffing firms based in the United States, with 17,625 tracked contacts and 2,317 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 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 25 security clearance staffing firms based in the 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 | Chenega Corporationchenega.com HQ: Anchorage, AK, United StatesReported employees: 5,001-10,000 | Anchorage, AK, United States | 5,001-10,000 | Exact match | 1,853 contacts → |
“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | GISgeninfo.com HQ: Irvine, CA, United StatesReported employees: 1,001-5,000 | Irvine, CA, United States | 1,001-5,000 | Exact match | 1,474 contacts → |
“GIS | HireRight was established in 1966 and is one of the nation's oldest and largest background screening providers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Omniplex World Services Corporationomniplex.com HQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 677 contacts → |
“OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Tech USAtechusa.net HQ: Millersville, MD, United StatesReported employees: 501-1,000 | Millersville, MD, United States | 501-1,000 | Exact match | 541 contacts → |
“A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Clearancejobsclearancejobs.com HQ: Centennial, CO, United StatesReported employees: 51-200 | Centennial, CO, United States | 51-200 | Exact match | 433 contacts → |
“ClearanceJobs.com the largest security-cleared career network, specializes in defense jobs for professionals with security clearances.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Softworld, A Kelly Companysoftworldinc.com HQ: Waltham, MA, United StatesReported employees: 1,001-5,000 | Waltham, MA, United States | 1,001-5,000 | Exact match | 389 contacts → |
“Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Master Securitymastersecurity.us HQ: Hunt Valley, MD, United StatesReported employees: 201-500 | Hunt Valley, MD, United States | 201-500 | Exact match | 338 contacts → |
“For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | CTR Groupctrc.com HQ: Newport News, VA, United StatesReported employees: 201-500 | Newport News, VA, United States | 201-500 | Exact match | 337 contacts → |
“CTR Group provides staffing and recruiting services across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Midtown Groupthemidtowngroup.com HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 327 contacts → |
“Founded in 1989, The Midtown Group pioneers 360-degree staffing services and solutions for organizations across both public and private sectors.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Peerless Technologies Corporationepeerless.com HQ: Fairborn, OH, United StatesReported employees: 201-500 | Fairborn, OH, United States | 201-500 | Exact match | 326 contacts → |
“Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Cambay Consulting LLCcambaycs.com HQ: Katy, TX, United StatesReported employees: 1,001-5,000 | Katy, TX, United States | 1,001-5,000 | Exact match | 313 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Job1usajob1usa.com HQ: Toledo, OH, United StatesReported employees: 1,001-5,000 | Toledo, OH, United States | 1,001-5,000 | Exact match | 283 contacts → |
“We're more than a staffing company.We're more than a security company.We're more than a temporary agency.We are your Custom Employment Solution!” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Abbtechabbtech.com HQ: Sterling, VA, United StatesReported employees: 201-500 | Sterling, VA, United States | 201-500 | Exact match | 254 contacts → |
“From defense to civilian agencies, we provide staffing solutions that meet the demands of federal, local and state agencies.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ADC LTD NMadcltdnm.com HQ: Albuquerque, NM, United StatesReported employees: 501-1,000 | Albuquerque, NM, United States | 501-1,000 | Exact match | 252 contacts → |
“ADC supports government and corporate clients with two primary services - personnel security, ranging from pre-employment checks to comprehensive background investigations and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Luke Staffinglukestaffing.com HQ: Rockledge, FL, United StatesReported employees: 1,001-5,000 | Rockledge, FL, United States | 1,001-5,000 | Exact match | 207 contacts → |
“Luke & Associates (Luke) is a trusted provider of healthcare and professional services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Acts-Aviation Securityacts-sec.com HQ: Des Plaines, IL, United StatesReported employees: 1,001-5,000 | Des Plaines, IL, United States | 1,001-5,000 | Exact match | 203 contacts → |
“As the U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | NVT Staffing, INCnvtstaffing.com HQ: Falls Church, VA, United StatesReported employees: 501-1,000 | Falls Church, VA, United States | 501-1,000 | Exact match | 199 contacts → |
“NVT Staffing is a direct reflection of the rapid growth and expansion of our parent company, Northern Virginia Temporaries, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Paladin Consultingpaladininc.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 198 contacts → |
“Paladin Consulting is a nationwide Talent Acquisition and Placement consulting firm.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TAD Pgs, INCtadpgs.com HQ: Bradenton, FL, United StatesReported employees: 51-200 | Bradenton, FL, United States | 51-200 | Exact match | 194 contacts → |
“TAG PGS, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Quadrant, INCquadrantinc.com HQ: Reston, VA, United StatesReported employees: 501-1,000 | Reston, VA, United States | 501-1,000 | Exact match | 153 contacts → |
“Founded in 2002, headquartered in Reston, VA, Quadrant, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Iworks Corporationiworkscorp.com HQ: Reston, VA, United StatesReported employees: 51-200 | Reston, VA, United States | 51-200 | Exact match | 143 contacts → |
“iWorks Corporation, founded in 2005, is a leading provider of information technology and professional services to the federal government.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Corporate JOB Bankcorporatejobbank.com HQ: Tempe, AZ, United StatesReported employees: 1,001-5,000 | Tempe, AZ, United States | 1,001-5,000 | Exact match | 142 contacts → |
“Corporate Job Bank has built our business and reputation since 1985 by finding the best people.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vault Workforce Screening, A First Advantage Companyvaulthealth.com HQ: Coral Gables, FL, United StatesReported employees: 201-500 | Coral Gables, FL, United States | 201-500 | Exact match | 137 contacts → |
“Vault Workforce Screening was acquired by Sterling on January 2, 2024.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Excel Security Corporationexcelsecurity.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 120 contacts → |
“Excel Security Corp.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Fort Lauderdale, FL, United StatesReported employees: 51-200 | Fort Lauderdale, FL, United States | 51-200 | Exact match | 115 contacts → |
“Founded in 1993, Vitaver and Associates offers three decades of expertise in professional recruitment services.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 465 company matches
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Security clearance staffing firms: dataset insights
September 29, 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
465 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 465 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 29, 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 ↗
Questions about this company list
What does Exact match mean for security clearance staffing firms?
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 security clearance staffing firms did RevenueBase find based in the United States?
The saved snapshot records 465 matching company records, 17,625 tracked contacts and 2,317 verified emails. The public preview displays 25 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 29, 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
Security clearance staffing firms by geography
Cite this list
RevenueBase Data Team. Top 25 security clearance staffing firms based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/security-clearance-staffing-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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