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Top BPO Service Companies for Auditing

6 of 8 BPO service companies ranked on evidence in the Q4 2026 edition.

Between them, the 8 BPO service companies on this page cover medical (7), medical billing (3), government (3) and monitoring (3). 8 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

6 of 8 BPO service companies ranked on evidence held on 6 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

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All BPO service companies 6 ranked SMEs 6 ranked

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DRS Acquisitions
Also in Minnesota and Minneapolis
DRS Acquisitions runs national outbound telemarketing from a call centre in rural Sauk Centre, Minnesota.
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Why #1: Founded 1995 · Team of 75+, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Bsi Medical Billing
Medical Billing · Medical · Government
Medical billing, coding, credentialing and auditing services for physician practices and healthcare providers since 1992
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Why #2: Founded 1992, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Fastnet
Medical Billing · Medical · Government
Fastnet Medical Billing handles billing for healthcare providers, from insurance checks to collections.
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Why #3: Founded 1994, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Hartley and Associates
Call Center · Medical
Hartley and Associates is a telephone answering and call centre service based in Santa Rosa, California.
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Why #4: In business 30+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Integrated Physicians Management Services
Practice Management · Medical · Agile
Integrated Physicians Management Services, known as IPMS, is a medical practice management firm.
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Why #5: In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Keizer Solutions
Call Center · Practice Management · Medical · Also in Phoenix
Keizer Solutions supplies back-office support to healthcare organisations.
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Why #6: Founded 2010, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
ARDEM Incorporated
Medical · Government · Monitoring
ARDEM Incorporated provides business process outsourcing, taking back-office and data-heavy tasks off clients' hands.
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Fortis Medical Billing
Medical Billing · Medical · Outsourcing
Fortis Medical Billing handles billing and compliance for healthcare providers in the United States.
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Top BPO Service Companies for Auditing

DRS Acquisitions

Bsi Medical Billing

Fastnet

Hartley and Associates

Integrated Physicians Management Services

Keizer Solutions

ARDEM Incorporated

Fortis Medical Billing

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