The American Institute of Certified Public Accountants is the national, professional organization for all Certified Public Accountants. Its mission is to provide members with the resources, information, and leadership that enable them to provide valuable services in the highest professional manner to benefit the public as well as employers and clients.

CPA USA Network (formerly NACPAF – National Associated CPA Firms) is a group of professional accounting firms established in 1979 to provide members' clients with the broad scope of services required in today's rapidly expanding worldwide economy.

EPR Canada is a national group of progressive public accounting firms. The combined resources of EPR Canada Member Firms form a dynamic and successful source of accounting and management consulting services, one of the largest such public accounting service groups in Canada. With offices in all regions of the nation, EPR Canada Member Firms have professionals with the knowledge and expertise to respond to client needs, locally, provincially and nationally.