Company lists · Data refreshed October 2026

Top 25 Contractor background check services worldwide

RevenueBase identified 1,291 company matches for contractor background check services worldwide as of October 2026 and tracks 32,273 professional contacts across them, including 9,585 with verified work emails. The United States is the largest market and Bangalore the largest hub.

This list covers company matches for contractor background check services worldwide, 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 October 10, 2026. Country and city lists for contractor background check services follow the table.

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 Oct 10, 2026 How this list was built
1,291Companies
32,273Contacts tracked
9,585Verified emails
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The 25 largest contractor background check services worldwide

Ranked by team size
Top 25 of 1,291 company matches for contractor background check services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNashville, TN, United StatesHQ recorded Oct 10, 20261,001-5,0003,022 contacts →

Exact match

“HireRight delivers global background checks, drug testing, and employment verification services through an innovative platform.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2Exact matchIndependence, OH, United StatesHQ recorded Oct 10, 20265,001-10,0002,897 contacts →

Exact match

“Sterling was acquired by First Advantage on October 31st, 2024.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3Exact matchIrvine, CA, United StatesHQ recorded Oct 10, 20261,001-5,0001,675 contacts →

Exact match

“In a category of inflexible giants and ill-equipped startups, Accurate Background stands alone.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4Exact matchIrvine, CA, United StatesHQ recorded Oct 10, 20261,001-5,0001,540 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 · Oct 10, 2026 · View company records in RevenueBase
5Exact matchDubai, United Arab EmiratesHQ recorded Oct 10, 2026501-1,0001,460 contacts →

Exact match

“DataFlow Group is a pioneering global provider of specialized Primary Source Verification (PSV) solutions, and background screening and immigration compliance services that assist…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 10, 20261,001-5,000887 contacts →

Exact match

“DISA has been providing full-service employee screening solutions since 1987.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7Exact matchEaston, MD, United StatesHQ recorded Oct 10, 20261,001-5,000772 contacts →

Exact match

“Cisive is a trusted partner for comprehensive, high-risk compliance-driven background screening and workforce monitoring solutions, specializing in highly regulated…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8Exact matchCincinnati, OH, United StatesHQ recorded Oct 10, 2026201-500665 contacts →

Exact match

“cFIRST is a digital global background screening service provider headquartered in Cincinnati, Ohio.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9Exact matchBangalore, IndiaHQ recorded Oct 10, 2026501-1,000494 contacts →

Exact match

“Empowering Confident Hiring Decisions for 15+ Years Verifacts is India’s trusted background verification partner-delivering accurate, customizable checks across employees…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Oct 10, 20261,001-5,000472 contacts →

Exact match

“First Advantage India is the nation’s leading Background Screening Service.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11Exact matchToronto, ON, CanadaHQ recorded Oct 10, 20261,001-5,000412 contacts →

Exact match

“Sterling was acquired by First Advantage on October 31st, 2024.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12Exact matchWarminster, PA, United KingdomHQ recorded Oct 10, 2026501-1,000334 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Oct 10, 2026201-500276 contacts →

Exact match

“iCOVER Group provides high-quality Third-Party Background Screening, Monitoring, and Due Diligence services.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14Exact matchVictoria, BC, CanadaHQ recorded Oct 10, 2026201-500265 contacts →

Exact match

“Certn isn’t a background check provider with a tech department, it’s a tech-first leader innovating every part of the background screening process.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15Exact matchPhoenix, CA, United StatesHQ recorded Oct 10, 2026201-500259 contacts →

Exact match

“Universal Background provides industry leading people insights to safety sensitive organizations in a simplified experience through our best-in-class background screening, drug…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16Exact matchCleveland, OH, United StatesHQ recorded Oct 10, 2026201-500211 contacts →

Exact match

“Asurint is a leading provider of screening data and software serving the the employment, tenant, and government sectors.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17Exact matchNoida, IndiaHQ recorded Oct 10, 2026201-500202 contacts →

Exact match

“At IISERVZ, we're not just providing a service; we're delivering a solution.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18Exact matchMeridian, ID, United StatesHQ recorded Oct 10, 202651-200198 contacts →

Exact match

“At Verified First, we believe great companies start with great people.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19Exact matchFort Myers, FL, United StatesHQ recorded Oct 10, 2026201-500186 contacts →

Exact match

“Better By Every Measure.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20Exact matchMumbai, IndiaHQ recorded Oct 10, 2026201-500181 contacts →

Exact match

“SecUR Credentials Ltd is India’s first and only listed background verification companies.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21Exact matchGurgaon, IndiaHQ recorded Oct 10, 20261,001-5,000180 contacts →

Exact match

“Parishram Resources Pvt Ltd is a leading Human Resource service provider with its headquarters in Gurgaon, India.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 10, 202651-200177 contacts →

Exact match

“At Zinc, we believe in smarter, quicker, better background checks.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23Exact matchBasingstoke, United KingdomHQ recorded Oct 10, 2026201-500177 contacts →

Exact match

“Security Watchdog is a global, specialist background screening business helping organisations build and maintain workforce integrity.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24Exact matchLincolnshire, IL, United StatesHQ recorded Oct 10, 2026n/a165 contacts →

Exact match

“Welcome to ScoutLogic.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 10, 202651-200155 contacts →

Exact match

“We help organisations hire with confidence and operate with integrity through two powerful solutions: global pre-employment background screening and a secure whistleblowing…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

Showing 25 of 1,291 contractor background check services worldwide

See the full list, filter by size, metro and specialty, and access 9,585 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Contractor background check services worldwide at a glance

As of Oct 10, 2026
29.7%Verified-email coverage
25.0Average contacts per company
11-50Median size (employees)
2.9%Largest-city concentration · Bangalore
Oct 10, 2026Page data refreshed

Companies by employee count

1-10
509
11-50
496
51-200
199
201-500
57
501-1,000
12
1,001-5,000
13
5,001-10,000
3
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for contractor background check services are linked below.
What qualifies
Company records worldwide whose business descriptions match “contractor background check 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. 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 9,585 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 October 10, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Contractor background check services by location

5 lists · largest first

Every Contractor background check services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “contractor background check services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many contractor background check services are there worldwide?

RevenueBase identified 1,291 company matches for contractor background check services worldwide as of October 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?

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

Which country has the most contractor background check services?

The United States leads with 653 companies, followed by India (169) and the United Kingdom (74). Every contractor background check services list by country and city is linked on this page.

Which city has the most contractor background check services?

Bangalore leads with 37 company records, followed by Noida (18) and London (16).

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 9,585 professional contacts with verified work emails tracked across these 1,291 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 October 10, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.