Insight Service Group (ISG), a national provider of claim and litigation support services, announced the appointment of Michael Sieger, former Claims Group President at Progressive Insurance, to its Board of Advisors.

Sieger spent 32 years at Progressive Insurance, joining in 1990 and retiring in 2022. During his tenure, he held leadership roles in claims process management and regional general management across the Northeast and Washington. He holds an MBA from the University of Chicago.

The appointment marks ISG's third board addition in 2026, following Seth Ingall in January and Edmund Murphy in March, according to a company statement.

Sieger currently serves on the Board of Directors for RB Global, Inc. (NYSE: RBA) and Crash Champions, a national collision repair operator, and holds additional advisory roles in the insurance and automotive sectors.

"ISG is addressing challenges that every carrier faces such as fragmentation, inefficiency and the need for defensible, technology-supported decisioning," Sieger said. "The opportunity to support a model that unifies critical services under one coordinated framework is both compelling and timely."

ISG provides services including independent medical examinations, record retrieval, clinical services, investigations, and workflow technology to the insurance and legal industries.