KSM Climbs to No. 40 on INSIDE Public Accounting's 2026 Top 500 Firms List

Summary: KSM climbed to No. 40 on INSIDE Public Accounting’s 2026 Top 500 Firms list, reflecting the employee-owned accounting and advisory firm’s continued growth, strategic expansion, and commitment to serving clients nationwide.

INDIANAPOLIS – KSM (Katz, Sapper & Miller), a leading employee-owned accounting and advisory firm, has been ranked No. 40 on INSIDE Public Accounting’s (IPA) 2026 Top 500 Firms list, moving up seven spots from No. 47 in 2025.

The annual IPA Top 500 ranks the nation’s largest CPA firms based on net revenue and is widely regarded as one of the accounting profession’s leading benchmarks for firm growth, size, and market position.

KSM’s continued rise in IPA’s rankings reflects another year of strategic growth and investment. In 2025, Chicagoland firm MichaelSilver joined KSM, expanding the firm’s presence and capabilities in the Chicago market. Earlier this year, KSM also launched KSM Corporate Finance, its investment banking service line, through the addition of Charter Capital Partners’ investment banking team, further strengthening the firm’s ability to serve clients throughout every stage of the business lifecycle.

“Our continued growth is the result of an intentional strategy and, most importantly, the incredible people who bring it to life every day,” said Tim Cook, KSM CEO and president. “We’re committed to building a firm that delivers exceptional value to our clients while creating meaningful opportunities for our employees to grow their careers. Advancing in the IPA rankings reflects that commitment and the momentum we’ve built together.”

Over the past several years, KSM has continued to expand its geographic footprint, deepen its advisory capabilities, and invest in talent and technology to meet the evolving needs of clients across industries. As an employee-owned firm, KSM’s growth is driven by a long-term commitment to helping clients, communities, and employees succeed.

Learn more about the 2026 IPA Top 500 rankings at Inside Public Accounting.