Company lists · Data refreshed September 2026
Top 25 Inmate services providers worldwide
RevenueBase identified 626 inmate services providers worldwide as of September 2026 and tracks 16,885 professional contacts across them, including 3,770 with verified work emails. The United States is the largest market and Philadelphia the largest hub.
This list covers inmate services providers 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 20, 2026. Country and city lists for inmate services providers 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 inmate services providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,786 contacts → | ||||
Indirect evidence “Global Leader in Evidence-Based Rehabilitation The GEO Group is committed to providing leading, evidence-based rehabilitation programs to individuals while in-custody and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 639 contacts → | ||||
Indirect evidence “The Fortune Society’s mission is to support successful reentry from incarceration and promote alternatives to incarceration, thus strengthening the fabric of our communities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 443 contacts → | ||||
Indirect evidence “Bob Barker Company has been serving and transforming the criminal justice system for more than 50 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 394 contacts → | ||||
Indirect evidence “Advanced Correctional Healthcare, Inc.(ACH) is the nation’s largest jail contract management company, managing contracts for health care teams and customized programs in a variety…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 393 contacts → | ||||
Indirect evidence “Abraxas Youth & Family Services is a nonprofit provider of a diversified array of services to over youth, adults and families each year.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 353 contacts → | ||||
Indirect evidence “Southern Health Partners is a leading provider of healthcare services to county and city correctional facilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 261 contacts → | ||||
Indirect evidence “Osborne is committed to transforming lives, communities, and the criminal justice system through- Direct services and programs in five community sites-in the Bronx (our…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 248 contacts → | ||||
Indirect evidence “Kintock is a non-profit organization that provides quality reentry programs that assist individuals in making and sustaining transformative life changes.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 162 contacts → | ||||
Indirect evidence “Our organization breaks the cycle of incarceration, helping people who are ready to change find true independence, learn healthier ways of living and become self-sufficient and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 158 contacts → | ||||
Indirect evidence “We help break the cycle of recidivism by positively impacting the lives of those we serve through food, training & jobs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 143 contacts → | ||||
Indirect evidence “Founded in 1961, Good News Global is a Christian outreach that provides chaplains, volunteers, counseling, and educational programs to jails and prisons in 21 US states and 24…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 141 contacts → | ||||
Indirect evidence “As Australia’s largest provider of private correctional services, our focus is on rehabilitating prisoners and giving them the support and growth to become positive and productive…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 141 contacts → | ||||
Indirect evidence “For more than 90 years, we’ve worked to keep the humanity in justice.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 135 contacts → | ||||
Indirect evidence “With a firm belief in human resilience, Exodus Transitional Community delivers innovative programming tailored to adults and youth affected by the justice system, and advocates…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 126 contacts → | ||||
Indirect evidence “Since 1977, ATTIC Correctional Services, Inc.(ACS) has provided correctional programs for the criminal justice system.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 118 contacts → | ||||
Indirect evidence “The first CMGC member, California Forensic Medical Group (CFMG), was founded in 1983, and provides correctional medical and mental health services to nearly half of California’s…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 109 contacts → | ||||
Indirect evidence “QCC provides Medical, Mental and Addiction treatment services to incarcerated individuals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 100 contacts → | ||||
Indirect evidence “ICSolutions equips our correctional agency partners with the most sophisticated technology available to meet the challenges of today’s corrections environment.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 99 contacts → | ||||
Strong evidence “Our Vision Telmate is a leading provider of inmate communications services with a primary mission to create innovative technologies that lower recidivism by increasing the secured…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 97 contacts → | ||||
Strong evidence “TK Health provides comprehensive health care services to diverse inmate populations, with services tailored to each client's need.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 97 contacts → | ||||
Indirect evidence “Tiger Correctional Services is the single source provider for the services your facility needs most.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 95 contacts → | ||||
Indirect evidence “Located in Columbus, Ohio, CompDrug is both the largest comprehensive organization in Ohio offering prevention, intervention and treatment programs for persons with substance…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 81 contacts → | ||||
Indirect evidence “For over 50 years, St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “Pay Tel began operating in 1986, providing payphone service to clients throughout the southeastern United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 72 contacts → | ||||
Indirect evidence “For more than four decades, Renewal has created pathways to help the men and women in our care successfully transition back into society.” Source: RevenueBase Database · checked Sep 20, 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: inmate services providers. 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 inmate services providers.
- Partial evidence
- Its own public description names part of inmate services providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name inmate services providers. 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 626 inmate services providers worldwide
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Inmate services providers worldwide at a glance
As of Sep 20, 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 inmate services providers, 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 inmate services providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “inmate services providers”. 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 inmate services providers), 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 inmate services providers, 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, 3,770 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 20, 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.
Inmate services providers by location
1 lists · largest firstEvery Inmate services providers 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 inmate services providers, 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 inmate services providers are there worldwide?
RevenueBase identified 626 inmate services providers 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?
The GEO Group, INC, headquartered in Boca Raton, tops this list with the largest team on record.
Which country has the most inmate services providers?
The United States leads with 434 companies. Every inmate services providers list by country and city is linked on this page.
Which city has the most inmate services providers?
Philadelphia leads with 9 headquartered companies, followed by Denver (8) and Los Angeles (8).
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 3,770 verified decision-maker contacts tracked across these 626 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 20, 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.