Chicago, IL - BDO Alliance USA, one of the nation’s largest alliances of independently owned local and regional accounting, consulting and service firms, welcomes several new CPA firms as members. The new members are as follows: Rockville, Virginia-based Clarkson David, CPA, P.C.; Danbury, Connecticut-based Anthony J. Mercaldo & Associates, P.C.; Tampa, Florida-based Astra Audit & Advisory, LLC; Phoenix, Arizona-based Walker and Armstrong, LLP; Englewood, Colorado-based Richey, May & Co., LLP; Sant Mateo, California-based Gilmore Advisors, LLC; Coral Gables, Florida-based AbitOs Accountants + Advisors; Honolulu, Hawaii-based Accuity Advisors, LLC; Somerset, New Jersey-based RRBB Advisors, LLC; San Clemente, California-based Bourque & McLucas CPAs, Inc.; Audubon, Pennsylvania-based Behunin & Associates, P.C.; and Burbank, California-based Smith Mandel & Associates, LLP. The BDO Alliance USA now has 248 CPA member firms in 720 locations nationwide.
Clarkson David, CPA, P.C. joined January 1, 2026, and provides assurance, tax, and advisory services to businesses and high-net-worth individuals, especially in the medical, manufacturing, construction, and real estate industries, along with start-up businesses seeking support with tax credits.
Anthony J. Mercaldo & Associates, P.C. joined January 1, 2026, and provides assurance, tax, and advisory services to a variety of businesses, especially construction companies in the Connecticut and New York areas.
Astra Audit & Advisory, LLC joined January 15, 2026, and provides assurance services to a variety of businesses, especially small emerging growth companies focused on technology, healthcare, internet content, and advertising industries. They concentrate on PCAOB audits.
Walker and Armstrong, LLP joined February 1, 2026, and provides assurance, tax, and advisory services to businesses and high net worth individuals in Arizona, especially governmental, and nonprofits.
Richey, May & Co., LLP joined March 1, 2026, and provides assurance, tax, and advisory services to businesses and high net worth individuals, especially mortgage banking, alternative investments, family offices, and real estate companies throughout the United States.
Gilmore Advisors, LLC joined March 1, 2026, and provides assurance, tax, and advisory services to businesses and high net worth individuals, especially nonprofits, and construction companies in the San Francisco Peninsula.
AbitOs Accountants + Advisors joined May 1, 2026, and is part of Crete PA (private equity backed), joining several other independent members of the BDO Alliance USA connected with Crete. They provide assurance, tax and advisory services to businesses and high net worth individuals in South Florida, typically with connections in Latin America and Western Europe.
Accuity Advisors, LLC joined on May 1, 2026, and provides assurance, tax, and advisory services to closely held businesses, professional services firms, real estate and development entities, construction companies, and high net worth individuals, primarily throughout Hawaii.
RRBB Advisors, LLC joined May 1, 2026, and is part of Crete PA (private equity backed), joining several other independent members of the BDO Alliance USA connected with Crete. They had acquired a member of the BDO Alliance, Mendonca & Partners, based in Union, New Jersey. They provide assurance, tax, and advisory services to businesses and high net worth individuals throughout the Northeast.
Bourque & McLucas CPAs, Inc. joined July 15, 2026, and provides tax services to small and medium sized businesses and high net worth individuals in south Orange County, California.
Behunin & Associates, P.C. joined July 15, 2026, and provides Internal Controls, IT and Business Process Controls services, including SOX and SOC work, to public companies that require robust internal control environments in order to meet their reporting requirements and stakeholder expectations.
Smith Mandel & Associates, LLP joined July 15, 2026, and provides assurance, tax, and client accounting services to businesses and high net worth individuals in the Greater Los Angeles Area.
“We are excited to welcome another group of exceptional firms to our Alliance in 2026, further strengthening the vibrant community we are building together. Our continued growth reflects the value of a collaborative ecosystem where members connect, share expertise, and create new opportunities for success. As we look ahead, we remain committed to expanding this dynamic community and enhancing the collective value that sets our Alliance apart,” said Michael Horwitz, BDO USA, P.C. Principal and Executive Director of Alliance Services.
About the BDO Alliance USA
The BDO Alliance USA is a nationwide association of independently owned local and regional accounting, consulting and service firms with similar client service goals. The BDO Alliance USA presents an opportunity for these firms, by accessing the resources of BDO USA, P.C. and other Alliance members, to expand services to their clients without jeopardizing their existing relationships or their autonomy. The BDO Alliance USA was developed to provide Member firms with an alternative strategy for gaining competitive advantage in the face of a changing business landscape. The Alliance represents an opportunity for BDO to enhance relationships with reputable firms. The BDO Alliance USA is a subsidiary of BDO USA, P.C., a Virginia professional corporation.