Greg Zimmer named CEO of Alliant Insurance Services

Alliant Insurance Services has announced the appointment of Greg Zimmer as CEO. He assumes the role from longtime Alliant leader Tom Corbett, who will remain as the company’s executive chairman.

Corbett, who joined Alliant in 1977, served as Alliant’s CEO for more than 30 years, guiding the company’s emergence into one of the nation’s top names in insurance brokerage and consulting.

Zimmer joined Alliant in 1998 as CFO and was named President in 2007. As President, he was responsible for implementing the overall strategic direction of the company while overseeing all mergers and acquisitions activity. Under his guidance, Alliant completed 100+ acquisitions in strategic markets across the US while seeing its employee population grow to nearly 11,000.

“Tom’s outstanding leadership of Alliant has placed our organization in a remarkable position, bolstered by an entrepreneurial, collaborative culture that allows us to maximize our impact and grow with purpose. We continue to attract the best talent in the industry and take tremendous pride in offering our clients an unparalleled level of service.” – Greg Zimmer.

“During his exceptional career with Alliant, Greg has successfully guided the company through a period of tremendous growth and expansion with both visionary leadership and an entrepreneurial focus. Greg’s appointment to CEO will ensure long-term stability for Alliant and will support our continued growth well into the future. I believe our best days are ahead of us.” – Tom Corbett.

Additional leadership promotions include:

  • Zimmer’s role of president will be filled by Ralph Hurst, who previously oversaw the company’s retail brokerage operations.
  • Peter Arkley will assume Hurst’s position of president, National Brokerage, overseeing Retail Property & Casualty and Employee Benefits.
  • Sean McConlogue will lead Alliant Underwriting and Consumer Solutions as president, which combines the current underwriting and consumer operations under one umbrella.
  • CFO Ilene Anders and COO Peter Carpenter will continue in their current roles.

The new leadership roles will take effect April 1, 2024.