Our Company Gibson Capital Management (GCM) is an independent boutique registered investment advisory firm located in Roseville, California. Bob has been in the industry since 1980 and GCM was established in 1989. GCM offers no proprietary products and does not manage money. It was founded on the principle that true independence from corporate bias, quotas, and control equates to higher quality, personalized services to clients. This allows Bob the freedom to make sound investment recommendations and build solid financial plans that are truly in the best of clients.