The Mather Group's acquisition of $1 billion Berman Investment Advisors closed on Oct. 1.: The Mather Group announced Tuesday it has acquired Mill Valley, Calif.-based Berman Investment Advisors, bringing the firm’s total assets under management up to $2.8 billion. Berman Investments, with AUM of about $1 billion, serves ultra-high-net-worth individuals and families in the San Francisco Bay area. “We had been tirelessly searching for the right strategic partner to help us elevate the level of service we offer clients,” said Steve Berman, founder and president of Berman Investment Advisors, who will serve as chairman of The Mather Group’s family office.