Grassi Advances on Accounting Today’s Top 100 Firms and Regional Leaders List
New York, NY — Grassi, a leading independent provider of advisory, tax, and accounting services, today announced its advancement on Accounting Today’s 2026 Top 100 Firms and Regional Leaders list. The firm advanced three spots nationally and one spot regionally, securing its position as a Top 10 Leader in the Mid-Atlantic region for the third consecutive year.
Grassi’s rise in the national and regional rankings reflects more than four decades of sustained, organic growth driven by long-term client relationships and a commitment to service quality. In 2025, the firm reported a 12.7% revenue increase, delivering consistent double-digit, year-over-year growth. Grassi’s strong performance is supported by its employee-owned ESOP (Employee Stock Ownership Plan) structure, which aligns the firm’s outcomes with client success and has contributed to client satisfaction scores that are more than double the industry average.
The firm’s rankings also reflect strategic expansion into new markets and deliberate investment in talent and leadership to support evolving client needs. In November 2025, Grassi acquired Denver-based OnePoint Franchise Accounting, expanding in Colorado and strengthening services for franchise and restaurant businesses nationwide. Throughout the year, Grassi welcomed new Partners and Practice Leaders in tax, audit, advisory, and key industry sectors, growing its team by 24%.
As Grassi expands its capabilities, talent and geographic reach, its placement on Accounting Today’s 2026 Top Firms and Regional Leaders lists reflects the firm’s stable, sustained growth and continued advancement as one of the nation’s leading accounting and advisory firms.
Accounting Today’s annual Top 100 Firms and Regional Leaders report compiles performance data from accounting firms across the United States and features perspectives from industry leaders on key trends shaping the profession, including insights from Grassi CEO and Founder, Louis C. Grassi.
