As has been the case for other accounting firms that have sold stakes to private equity firms, including at least 15 of the top 50 firms by revenue in the U.S., Capstone said the outside capital will provide the financial and strategic support needed to accelerate its long-term growth, strengthen client service offerings, and expand its market presence through mergers and acquisitions. Capstone Accounting and Tax is the brand name under which Capstone CPAs LLC and Capstone Accounting Services LLC provide professional services. Capstone CPAs is a licensed independent CPA firm that provides attest services to its clients, and Capstone Accounting Services, which isn’t a licensed CPA firm, provides tax and business consulting services to clients.