Grassi Climbs to #52 in INSIDE Public Accounting’s Top 500 Firms
New York, NY – Grassi, a leading provider of advisory, tax, and audit services, has been ranked #52 in INSIDE Public Accounting’s (IPA) 2025 Top 500 Firms list — climbing four spots from last year’s #56 ranking. This recognition reaffirms Grassi’s position among the prestigious Top 100 accounting firms in the United States.
With consistent year-over-year growth exceeding 10% and client satisfaction rates that are more than double the industry average, Grassi continues to rank among the nation’s largest and fastest-growing accounting firms. This momentum demonstrates the firm’s focus on delivering high-quality client service, investing in its people, and driving innovation across its practice areas.
A key driver of this growth has been Grassi’s unique structure as an employee-owned firm. In November 2023, Grassi announced its Employee Stock Ownership Plan (ESOP), reinforcing the firm’s long-standing commitment to independence, sustainable growth, and delivering an exceptional client experience. Today, Grassi is the second-largest ESOP accounting firm in the country.
“Advancing to the #52 spot and continuing our upward momentum in the Top 100 is a tremendous honor,” said Louis Grassi, CEO, Managing Partner and Founder of Grassi. “This recognition reflects our continued focus on helping clients navigate complex challenges and achieve their goals, and the dedication of our team members who make that possible through their commitment to service excellence.”
Grassi remains steadfast in delivering innovative, client-focused solutions and continuing its trajectory of strategic growth, service quality, and leadership in the accounting profession.