Alexander Thompson Arnold, PLLC (ATA) is a CPA, advisory, tax, and accounting firm headquartered in Jackson, Tennessee. The firm serves individuals, small businesses, corporations, family-owned businesses, publicly traded companies, and international corporations through in-person and remote service formats.

ATA provides a broad mix of accounting, tax, audit, and advisory services, including bookkeeping, payroll, tax planning, tax preparation, sales tax, IRS notice and audit help, new business formation, business valuation, client accounting services, CFO/controller outsourcing, risk advisory, and transaction advisory. Its listed industry experience includes agriculture, construction and real estate, financial institutions, governmental, healthcare, manufacturing and distribution, nonprofit, small and emerging business, utility systems, and private equity.

The firm also lists capabilities beyond traditional accounting, including data security, IT consulting, digital marketing, software design and development, wealth management, and retirement TPA.