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Top Business Service Companies for Non Profit

14 of 29 business service companies ranked on evidence in the Q4 2026 edition.

Between them, the 29 business service companies on this page cover accounting (12), tax (11), production (5) and government (4). They also list work in Washington and Michigan. 29 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

14 of 29 business service companies ranked on evidence held on 12 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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  1. Carlex Group logo

    Accounting · Tax · Production · Also in Texas and Detroit

    Carlex Group is an accounting and tax firm in Detroit. It offers bookkeeping, consulting, tax preparation and tax resolution for businesses and individuals, including non-profit…

    Why #1: In business 35+ years · professional accreditation, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  2. Card, Palmer, Sibbison & Co logo

    Accounting · Tax · Internet · Also in Ohio

    Card, Palmer, Sibbison & Co is a certified public accounting firm that has advised owners and businesses in Northeastern and Central Ohio since 1920.

    Why #2: Founded 1920, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  3. Kerkering Barberio logo

    Accounting · Tax · Banking

    Kerkering Barberio is a certified public accounting firm in Sarasota, FL that provides tax, audit and accounting services to businesses and individuals.

    Why #3: Founded 1972, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  4. Ference & Company logo

    Government · Also in Vancouver and Georgia

    Ference & Company is a program evaluation and research consulting firm in Canada, with its office in Vancouver, BC.

    Why #4: Founded 1980, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  5. KNF&T logo

    Tax · Also in New Hampshire and Bedford

    KNF&T is a locally owned and managed staffing firm operating since 1983.

    Why #5: Founded 1983, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  6. Leek & Associates logo

    Responsive

    Leek & Associates is an accounting firm of certified public accountants, formed in 1987 to serve businesses, non-profit organisations and individuals, mainly in Arkansas.

    Why #6: Founded 1987, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  7. Grass, Coffey & Scharlau logo

    Accounting · Tax · Residential

    Grass, Coffey & Scharlau, CPAs (GCS) is a full-service accounting firm that has served the valley of the sun for more than 35 years.

    Why #7: In business 35+ years, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  8. Lane & Company logo

    Accounting · Tax · Also in Maryland and Wisconsin

    Lane & Company, CPAs is a public accounting firm in Washington, DC.

    Why #8: In business 30+ years, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  9. Accounting and Business Consultants, LLC logo

    Accounting · Also in New York and York

    Accounting and Business Consultants, LLC is a specialised consulting firm in the greater Philadelphia area.

    Why #9: Founded 1997, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  10. Blackstone Technology Group logo

    Business Services · Government · Security

    Blackstone Technology Group is the parent of two firms: Blackstone Talent Group and Trellis Energy.

    Why #10: Founded 1998, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  11. Lingua Technologies logo

    Government · Also in Asia

    Lingua Technologies is a translation services provider in Singapore, working with businesses and organisations for over two decades.

    Why #11: In business 20+ years, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  12. Events By Renee logo

    Production · external · Creative · Also in Philadelphia

    Events By Renee is a full-service wedding and event planning firm that works under the name EBR.

    Why #12: In business 15+ years, as stated on its own website, read 9 Oct 2026

    Not yet on record: client reviews, vetting.

  13. Brothers Events and Entertainment logo

    Also in India

    Brothers Events and Entertainment is an event management company set up in 2015 in Ahmedabad, Gujarat.

    Why #13: Founded 2015, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  14. Blue Ridge Event Staffing logo

    Event staffing company supplying bar and food service staff for weddings, corporate events and fundraisers in Western North Carolina

    Why #14: In business 10+ years, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  15. 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
  16. AAFCPAs logo

    Business Services · Internet · Education · Also in California and Washington

    AAFCPAs is a certified public accounting firm that positions itself as an alternative to the large national accountancies.

  17. CBSI logo

    Production

    CBSI (Communication Business Services, Inc.) is a veteran-owned answering service based in Marietta, GA.

  18. DeMoss Accounting and Bookkeeping Services logo

    Accounting · Goals · Also in Chattanooga and Tennessee

    DeMoss Accounting and Bookkeeping Services is a CPA firm in Chattanooga, Tennessee.

  19. Detroit Action logo

    Also in Michigan

    Detroit Action is a grassroots, community-based organisation in Detroit, Michigan.

  20. EJK Accounting & Tax logo

    Accounting · Tax

    EJK Accounting & Tax is an accounting and tax services firm that serves Seattle and the wider Pacific Northwest.

  21. EventWise logo

    Production · Goals · Education · Also in Washington

    EventWise is an event planning and production business. It designs, plans and delivers events, including corporate events, non-profit functions, private parties, weddings and…

  22. Flock Event Design logo

    Production · Creative

    Flock Event Design plans and produces virtual, festival, conference and corporate events with a focus on inclusion and sustainability

  23. Foster & Dolleck, CPA's logo

    Accounting · Tax · Goals · Also in Nebraska and Omaha, Nebraska

    CPA firm in Omaha, Nebraska offering small business accounting, tax and attest services plus non-profit grant accounting

  24. Gka, P.C logo

    Accounting · Government · Also in Washington

    Gka, P.C is a public accounting and consulting firm serving clients across the Washington DC metropolitan area.

  25. Green Hasson Janks logo

    Business Services · Accounting · Tax · Also in Sutton

    Green Hasson Janks, known as GHJ, is a national advisory, accounting and tax firm with clients across the globe.

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