Illinois Agencies Partner With One of the Midwest's Leading Independent Insurance Organizations

Carlinville, IL - January 19, 2026 - Dimond Bros. Insurance is pleased to announce that Guthrie-Wynn Insurance Agency and Wagner Insurance Group has officially joined the Dimond Bros. family as of January 19, 2026. This relationship represents a blending of long-standing agency legacies and a shared commitment to serving communities with integrity, professionalism, and care.

A Legacy of Service

Guthrie-Wynn Insurance traces its roots back to 1957, when John Guthrie founded Guthrie Insurance in Carlinville, Illinois. A World War II pilot and respected community leader, John built the agency on trust, service, and strong local relationships, values that continue to define the organization today.

In 1967, John's son Michael Guthrie joined the agency, continuing the family tradition. Michael became a partner in 1978 and assumed sole ownership in 1990, expanding the agency's reach while maintaining its personalized approach to client service.

A new chapter began in 2002 when Michael Guthrie partnered with John Wynn to form Guthrie-Wynn Insurance Agency, Inc. The agency celebrated its 50th anniversary in 2007 with a community-wide event, highlighting its deep roots in Carlinville and dedication to the people it serves.

In 2012, John Wynn became the sole owners of Guthrie-Wynn. Just a year later, he guided the agency into a new era of growth by acquiring Wagner Insurance Group. A second location in Carlinville broadened their ability to serve clients across the region.

Looking Ahead

Wynn joins the Dimond Bros. team serving as a Sales Executive. In addition, Tammy Voyles (with the agency since 1998) and Amanda McCoig (2024) will be serving as Account Executives at the Dimond Bros. Carlinville Office located at 505 N. Broad St.

This relationship allows Guthrie-Wynn Insurance Agency and Wagner Insurance Group to maintain their strong local presence while gaining access to expanded resources, technology, and carrier relationships through Dimond Bros. Insurance.

About Dimond Bros. Insurance

Founded in 1867 and headquartered in Paris, Illinois, Dimond Bros. Insurance is one of the Midwest's leading independent insurance organizations. With more than 40 locations across Illinois, Indiana, Wisconsin, and South Carolina, Dimond Bros. provides insurance solutions and risk management solutions for individuals, businesses, and communities, while remaining committed to local relationships and trusted service.

Dimond Bros. is proud to welcome Guthrie-Wynn Insurance Agency and Wagner Insurance Group to the Dimond Bros. family and looks forward to the strength this relationship brings as we continue serving clients with enhanced support and expertise.