Company lists · Data refreshed September 2026
Top 25 Adoption background check services worldwide
RevenueBase identified 584 adoption background check services worldwide as of September 2026 and tracks 11,330 professional contacts across them, including 3,409 with verified work emails. The United States is the largest market and Bangalore the largest hub.
This list covers adoption background check services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for adoption background check services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 adoption background check services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,619 contacts → | ||||
Partial evidence “In a category of inflexible giants and ill-equipped startups, Accurate Background stands alone.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,474 contacts → | ||||
Partial evidence “GIS | HireRight was established in 1966 and is one of the nation's oldest and largest background screening providers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 667 contacts → | ||||
Partial evidence “cFIRST is a digital global background screening service provider headquartered in Cincinnati, Ohio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 449 contacts → | ||||
Partial evidence “First Advantage India is the nation’s leading Background Screening Service.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 330 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 185 contacts → | ||||
Indirect evidence “At Verified First, we believe great companies start with great people.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 172 contacts → | ||||
Indirect evidence “Better By Every Measure.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 168 contacts → | ||||
Partial evidence “Security Watchdog is a global, specialist background screening business helping organisations build and maintain workforce integrity.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 147 contacts → | ||||
Indirect evidence “We've moved!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 144 contacts → | ||||
Indirect evidence “Welcome to ScoutLogic.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 137 contacts → | ||||
Indirect evidence “Vault Workforce Screening was acquired by Sterling on January 2, 2024.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 131 contacts → | ||||
Partial evidence “AMS Inform Empowering Global Background Screening Solutions At AMS Inform, we are a powerhouse of global background screening services, revolutionizing the industry from India.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 107 contacts → | ||||
Partial evidence “Founded in 1982 and a fore-runner in the Background Checking Industry, Justifacts Credential Verification's mission is to be the premier provider of thorough and informative…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 100 contacts → | ||||
Indirect evidence “At Verifile, we’re committed to helping ensure that every one of your employees is everything they claim to be.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 100 contacts → | ||||
Indirect evidence “KENTECH is an award-winning investigative technology company that helps organizations make faster, smarter, more defensible decisions about the people they hire, partner with, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 94 contacts → | ||||
Partial evidence “InfoMart is a WBENC-certified and PBSA-accredited industry leader in background screening services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 93 contacts → | ||||
Partial evidence “Verified Credentials, LLC is a leading background screening company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 91 contacts → | ||||
Indirect evidence “Inflection delivers powerful, fair, and reliable screening products to empower companies to make better and faster people decisions about who they should hire, who they should…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 85 contacts → | ||||
Indirect evidence “Hiring decisions are more complex than ever.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 81 contacts → | ||||
Partial evidence “VERIS is a professional background screening and due diligence company supporting organizations in making informed, risk-aware decisions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 81 contacts → | ||||
Indirect evidence “Crystal Screening Services – Secure Your Workforce with Confidence In today’s fast-moving business environment, hiring the right people isn’t just important-it’s critical.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 73 contacts → | ||||
Strong evidence “About Verity Intelligence Founded in 2010, Verity Intelligence is an award-winning Malaysian company specializing in Employment Background Checks and compliance solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 67 contacts → | ||||
Partial evidence “SJV Data Solutions is the most trusted name in people-data powering background screening providers with the industry’s most comprehensive screening platform featuring thousands of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 66 contacts → | ||||
Strong evidence “KarmaCheck is the leader in modern background checks and screenings for the staffing industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 63 contacts → | ||||
Indirect evidence “Owens Asia, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: adoption background check services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names adoption background check services.
- Partial evidence
- Its own public description names part of adoption background check services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name adoption background check services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 584 adoption background check services worldwide
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Adoption background check services worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among adoption background check services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for adoption background check services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “adoption background check services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names adoption background check services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among adoption background check services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 3,409 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Adoption background check services by location
3 lists · largest firstEvery Adoption background check services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names adoption background check services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many adoption background check services are there worldwide?
RevenueBase identified 584 adoption background check services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Accurate Background, headquartered in Irvine, tops this list with the largest team on record.
Which country has the most adoption background check services?
The United States leads with 361 companies, followed by India (43) and the United Kingdom (38). Every adoption background check services list by country and city is linked on this page.
Which city has the most adoption background check services?
Bangalore leads with 7 headquartered companies, followed by London (6) and Frisco (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,409 verified decision-maker contacts tracked across these 584 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.