Rienerth has been a financial advisor since 1981, with firms including Wheat First Securities and Merrill Lynch, and in 2004 when on to found Rhino as an independent advisory firm. It offers predominantly fee-based, discretionary portfolio services.

Rienerth cited Capital Guardian’s relationship with Pershing, the clearing service and broker custodian, as one factor behind the new affiliation, as well as the service model provided by Capital Guardian's advisory services team.

In related news, last month Capital Guardian Wealth Management added offices in Wilmington, North Carolina and Pensacola, Florida. The firm also brought in two members of staff to run the new operations.