Mitchell, Sinkler & Starr | Investment Advisors Mitchell Sinkler & Starr is an independent, employee-owned, registered Investment Advisor. Founded in 1969, the Firm provides investment services to individuals and families, estates and trusts, and foundations and non-profit organizations. Mitchell Sinkler & Starr manages advisory and discretionary accounts and provides custody services. Mssadvisors.net~Site InfoWhoisTrace RouteRBL Check