
New Member
Bostwick Investment Consulting was founded on decades of experience and a vision for delivering investment advice defined by independence, trust, and personal connection. Rooted in Grand Rapids, Michigan, co-founders Quan Mac and Kathleen Vogelsang bring distinguished careers—Quan as CEO and CIO of Greenville Asset Management, and Kathleen as longtime CIO of the $2 billion Van Andel Institute endowment. They forged a conviction that discerning investors deserve counsel unclouded by sales incentives. With deep expertise in high-net-worth, institutional, and family office investing, they are committed to providing objective, empathetic, and long-term guidance
Member Since: 2026