Catch up with the latest developments at BBD.

BBD Joins Its Practice with Withum

On March 31, 2024, BBD LLP (BBD), a public accounting, tax and advisory firm dedicated to serving nonprofit and government organizations headquartered in Philadelphia, PA, will join its practice with WithumSmith+Brown, PC (Withum), a nationally recognized CPA and advisory firm with 23 offices, and annual revenue of $540M, ranking in the top 25 firms in the country. BBD’s five partners and 40 team members will be added to the Withum roster, remaining at their current Philadelphia office location at 1835 Market Street, Suite 300. Withum’s current Philadelphia office is located conveniently in the same building, residing in Suite 1710.


“We are excited to join a firm that aligns with our client-centric values while offering our staff endless career opportunities,” said Adam Watson, Managing Partner at BBD. “This union is the next phase in our story while we continue to help our clients reach new levels of success.”


“We are thrilled about this partnership with BBD as it further deepens our existing bench of expertise in the Not-for-Profit and Government sectors and underpins our commitment to serving our communities,” says Withum’s Managing Partner and CEO, Pat Walsh, CPA. “It also expands our presence in the dynamic Philadelphia business community and within the MidAtlantic region.”


About WithumSmith+Brown, PC

Established in 1974, Withum is a national top-ranking public accounting firm providing advisory, tax and audit services to businesses and individuals on a local-to-global scale. Headquartered in Princeton, NJ, Withum has a presence in major financial centers, including New York City, Boston, MA, Philadelphia, PA, Washington, DC, and Orlando, FL. Withum is an independent member of HLB, the global advisory and accounting network. For more information, please visit



BBD LLP (BBD) is a boutique CPA firm exclusively dedicated to serving the audit and tax needs of nonprofit and government organizations. With over 500 clients in the Greater Philadelphia area and throughout the Mid-Atlantic, BBD is a leader among CPA firms serving the nonprofit and government community. Visit for more information.