“WMC presents an excellent opportunity to broaden the geographic reach, scope and scale of our combined wealth management services to individuals, businesses, trusts, not-for-profits and retirement plans,” Bert Schweizer III, Buckingham’s co-founder and chairman said in a statement.

St. Louis-based Buckingham’s firms collectively advise on more than $12 billion in assets. WMC specializes in high net worth families located mostly in and around Sonoma County. It has 150 family relationships and manages approximately $400 million.

Terms of the deal were not disclosed.