Buoyed by a private equity infusion, The Mather Group reinforced its regional footprint in D.C. and Houston this week. : The Mather Group, a Chicago-based wealth management firm with 12 offices nationwide and more than $7.5 billion in assets under management, announced it has acquired two registered independent advisors with a combined total of $136 million in assets under management. Founded in 2011 by Stewart Mather, the firm embarked on an acquisitive growth strategy in 2018, adding 17 firms since October of that year.