Arthur J. Gallagher & Co., a Illinois-based international insurance brokerage firm, has acquired Mutual Insurance Services (MIS), a Washington-based managing general agent and wholesale insurance broker.

MIS, which was founded in 1985, provides property/casualty, professional business liability and other specialty insurance products and services to their independent insurance agent and broker clients primarily in the Northwestern US.

As part of the acquisition, Connie Divelbiss and her associates will continue to operate from their current location under the direction of Joel Cavaness, president of Risk Placement Services, a subsidiary of Arthur J. Gallagher & Co.

Arthur J. Gallagher & Co. president and CEO Patrick Gallagher said MIS is a great example of what they look for in an acquisition partner. Not only do they add to their geographic footprint in the Northwest, but their talented sales culture brings over 25 years of specialty product knowledge which gives them the capability to match hard to place risks with the appropriate markets.

Terms of the transaction were not disclosed.