Accounting and business management firm RBZ LLP has merged in Kaufman + Bernstein, building its business management practice in Los Angeles, particularly for entertainment industry clients.

The deal adds 19 new members to RBZ, including founders Roy D. Kaufman and Howard M. Bernstein, both of whom are CPAs and bring more than four decades of experience. They specialize in providing business management services to the entertainment industry, including actors, writers, directors, producers, composers, as well as company executives and high net worth individuals who come to them for advice on long-term preservation and growth of their net worth. The firm has also been known as Kaufman Bernstein Wertenbruch Thompson & Robert.

“Roy and Howard have built one of the most prestigious, reputable business management firms in Los Angeles,” said RBZ Business Management partner-in-charge Ken Coelho in a statement. “We are both thrilled and honored that they have joined RBZ.”

RBZ was one of the Regional Leaders on Accounting Today’s 2013 list of the Top 100 Firms, with $24.72 million in annual revenue in 2012.

“Ken Coelho has the vision and ambition to continue to grow their business management practice,” said Kaufman. “RBZ is a first-rate firm and our business management clients will benefit from access to their superb technical competencies.”

“We look forward to capitalizing on RBZ’s resources, their technical expertise and recruiting practices, which attracts the best and the brightest, said Bernstein. “The combination of our respective strengths will make for a thriving practice for years to come.”

In addition to the two founders, other members of the firm who are joining RBZ include Alicia Carrera, Tricia Fatherree, Kuliema Ginyard, Hilda Hakim; Breanna Herron, Patti Lawhon, Jean Lee, Marco Luna, Nash Naidoo, Samantha Naidoo, Ferdinand Padilla, Janet Phuong, Glynis B. Robert, Miriam Salinas, Nadia Siddiki, Michael Thompson and Scott Wilson.