Tandem Wealth Advisors, founded in 2011 and headquartered in Phoenix, Arizona, is a fee-only registered investment advisor managing approximately $223.4 million in assets for 292 clients, with an advisor-to-client ratio of 1:58 citeturn0search1. The firm offers a range of services including investment management, retirement planning, and trust and estate services, emphasizing a traditional, long-term, risk-controlled approach citeturn0search0. Tandem’s team comprises experienced professionals such as C. Angus Schaal, CFP®, Senior Managing Director, and Amy Bush, CFA, Chief Investment Officer citeturn0search2.