Grant Thornton LLP provides assurance, tax, and advisory services, plus AI-powered technology solutions, to organizations across 16 industries from 59 US offices within a 150-market global network.
Grant Thornton LLP operates as the US member firm of a global professional services network founded in Chicago in 1924 and active across 150 markets. The firm ranks as the 9th largest accounting firm in the United States, with 8,500+ employees across 59 US offices and $1.9 billion in US annual revenue. The wider network reports $8.5 billion in revenue from more than 80,000 professionals, growing at 6.1% annually. Clients span 16 distinct industries, including dynamic, growth-stage businesses.
The firm's offering is structured around three core lines - assurance, tax, and advisory services - supplemented by AI-powered technology solutions. For private equity owners, the combined platform addresses the full deal and hold-cycle agenda: audit and assurance to support financial reporting and diligence standards; tax advisory and compliance across jurisdictions and transaction structures; and advisory work that extends beyond traditional accounting to help clients realize specific operational and strategic ambitions. Technology-enabled delivery leverages AI to improve analysis and unlock growth potential within portfolio companies.
Operating scale is paired with industry-specific insight and a stated philosophy that "how we serve matters as much as what we do," emphasizing collaborative, trust-based client relationships. The firm positions itself as combining global reach with deep local insight - a structure that supports multi-site portfolio companies and cross-border activity while retaining accountability at the engagement level. Its long operating history, since 1924, and steady revenue growth provide a stable platform for governance-sensitive mandates.
