SSC CPAs + Advisors Combines with Harrison Henderson in Oklahoma

Mergers and Acquisitions | January 7, 2026

SSC CPAs + Advisors Combines with Harrison Henderson in Oklahoma

Topeka, KS-based SSC CPAs + Advisors, an INSIDE Public Accounting top 400 firm by revenue, has merged with Harrison Henderson, a public accounting firm with offices in Oklahoma.

Jason Bramwell

Topeka, KS-based SSC CPAs + Advisors, an INSIDE Public Accounting top 400 firm by revenue, has merged with Harrison Henderson PLLC, a public accounting firm with offices in Oklahoma.

Financial terms of the deal weren’t disclosed.

Founded in 1984, SSC CPAs + Advisors is a 100% employee-owned CPA and wealth management firm. It went to an employee stock ownership plan in 1999. The firm has more than 80 employees throughout offices in Topeka, Lawrence, Overland Park, Salina, and Meriden, KS.

SSC CPAs + Advisors has built a practice serving clients in multiple markets and includes tax, accounting, business advisory and CFO services, wealth management, retirement and estate planning, as well as ESOP advisory and consulting.

Brian Lang

“The integration of Harrison Henderson with our firm reinforces our foundation and broadens our horizons. This merger is a testament to shared values, shared commitment to exceptional service, and a shared vision for future success for our employee owners,” Brian Lang, CEO of SSC CPAs + Advisors, said in a statement.

Harrison Henderson is an independent accounting firm based in Oklahoma that specializes in bookkeeping, as well as individual and corporate tax preparation services. Founded in 1986, the firm operates in Tulsa, Norman, and Perry.

For Harrison Henderson, the transition to employee ownership will directly reward its employees and maximize future career opportunities, said Steven Henderson, managing partner of Harrison Henderson.

“Joining forces with SSC CPAs + Advisors opens the door to expanded opportunities—for our clients, our markets, and our people,” he said in a statement. “Together, we are stronger, more agile, and better positioned to deliver the high-touch service and forward-thinking solutions today’s companies require.”

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