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Accounting Firm

Alexander Thompson Arnold

South-eastern US CPA and advisory firm offering audit, tax, valuation, retirement plan and consulting services

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About Alexander Thompson Arnold

Accounting and advisory across fifteen southeastern offices

ATA, short for Alexander Thompson Arnold, is a group of certified public accountants and business advisers spread over 15 offices in the southeastern United States. It serves everyone from small family-owned firms to publicly traded and international companies, and the firm says its spread of offices lets it bring the talent of a large organization to a local business. It has also been named a national Top 150 accounting firm by an industry publication every year since 2015.

Accounting, auditing and tax

The core of the work is accounting, auditing and tax planning and compliance, for private and public companies alike. The firm presents itself as a team that goes beyond routine accounting, arguing that businesses which have tried everything to restart their growth can add its experience to their own staff, with a wide network of specialists a phone call away.

Valuation in the middle of a deal

One example the firm gives involves a client in the process of buying another company. The financials of the target held many unknowns, and the data made it hard to settle on a comfortable purchase price. The firm's business valuation team set out a clearer picture of the target's past performance, and after consulting with its advisory team the client settled on a reasonable price and completed the acquisition. The firm adds that the combined business grew by double digits in its first year under new leadership.

Retirement plan administration

ATA also works with employers that sponsor retirement plans. Its team gives step-by-step instructions whenever a plan needs updating for employees, sends participant statements on time and helps with withdrawals and 401(k) loans when employees ask. The firm describes the aim as better retirement readiness for participants.

A family of firms

The firm now has a Family of Firms, a set of related companies that cover services such as digital marketing and data security. The idea is that a client can take care of more of its needs with a partner it already uses, instead of finding separate suppliers. Its consulting arm advises businesses on growth and goal setting.

TrustList summary

Alexander Thompson Arnold, known as ATA, is a firm of certified public accountants and business advisers with 15 offices across the south-eastern United States. Clients range from small family businesses to publicly traded and international companies.

Services

  • Accounting and auditing: accounts and audits for private and public companies.
  • Tax: tax planning and compliance.
  • Business valuation: valuations to support decisions such as acquisitions.
  • Retirement plan services: administration of employee retirement plans, including statements, withdrawals and 401(k) loans.
  • Consulting: advisory work to help businesses grow.
  • Family of Firms: related companies covering areas such as digital marketing and data security.

Who it works with

Small family-owned businesses, publicly traded companies and international corporations, plus employers that sponsor retirement plans.

Key facts

  • Offices: 15 across the south-eastern US
  • Recognition: named in a national list of 150 accounting firms each year since 2015

Summary written by TrustList from the business's own published information, Nov 2026.

Categories & features

Alexander Thompson Arnold rankings

Alexander Thompson Arnold is ranked on 4 TrustList rankings: #6 on 1, #7 on 1, #10 on 1 and #36 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Alexander Thompson Arnold has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 4 rankings

  • #6of 106
    Digital

    It is the only one of the top 88 here listing utilities and one of 5 here listing business services.

    Its profile: “The firm now has a Family of Firms, a set of related companies that cover services such as digital marketing and data security.”

    Of the top 88 here, 51 also cover tax and 45 also cover accounting; 5 also work in California and 4 also work in Wales.

    Behind Alexander & Co, ahead of Ankura.

  • #7of 72
    Marketing

    It is one of 2 here listing residential and one of 3 here listing energy.

    Its profile: “The firm now has a Family of Firms, a set of related companies that cover services such as digital marketing and data security.”

    Of the 72 here, 17 also cover goals and 13 also cover legal; 3 also work in Dublin and 2 also work in Carolina.

    Behind Adam Garfield CPA, ahead of Apex Group.

  • #10of 224
    Goals

    It is one of 2 here listing digital marketing and retail.

    Of the top 87 here, 12 also cover reporting and 11 also cover government; 3 also work in Georgia and 2 also work in San Diego.

    Behind Alan R David CPA, ahead of Alkamano & Associates, CPA.

  • #36of 569
    Consulting

    It is one of 3 here listing real estate and one of 4 here listing manufacturing.

    Its profile: “The firm's business valuation team set out a clearer picture of the target's past performance, and after consulting with its advisory team the client settled on a reasonable price and completed the acquisition.”

    Of the top 86 here, 8 also cover non profit and 8 also cover responsive; 3 also work in Dubai and 2 also work in United States.

    Behind Al Maqtari Auditing, ahead of Andrew Pieri CPA, P.C..

As of 2026-11-14. Organic ranks only; sponsored placements are never ranks. How TrustList ranks

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