About Mainstay Capital Management, LLC
<p>Known for working with employees and retirees from major Michigan auto employers, Mainstay Capital Management, LLC advises clients tied to companies such as General Motors, Ford, and Stellantis. The firm is an independent, fee-only Registered Investment Advisor (RIA) and takes a fiduciary approach to its recommendations.</p> <p>Founded in 2000, Mainstay is headquartered in Grand Blanc in the Flint area, with additional Michigan offices in Troy, Novi, and Ann Arbor across the Detroit and Ann Arbor metro region. It also has an office in Naples, serving clients in Southwest Florida.</p> <p>On the retirement plan side, Mainstay supports workplace savings and individual retirement accounts, including 401(k), 457, and 403(b) accounts. The firm offers 3(21) fiduciary services and also provides financial planning and investment management as part of its advisory work. As of 2026, it reports $4.8B in assets under management.</p> <p>One point of differentiation is the firm’s visibility in personal finance media, with its CEO contributing to outlets such as Forbes and appearing on financial news networks.</p> <ul> <li><a href="/plan-advisors">Plan advisor</a> services, including 3(21) fiduciary support</li> <li>401(k), 457, and 403(b) account management</li> <li>Financial planning and wealth management</li> <li>Multi-office coverage in Michigan plus Naples, Florida</li> </ul>
Website: https://www.mainstaycapital.com/
Founded: 2000
Office Locations
- Ann Arbor, MI
- Naples, FL
- Grand Blanc, MI (Headquarters)
- Troy, MI
- Novi, MI
Services Offered
- 3(21) Investment Advisor
Client Statistics (2026)
- Total Clients: 0
- Total AUM: $4.8B