Insurance broker Arthur J. Gallagher made five acquisitions in a busy month for M&A activity.

AJG says it acquired:

Coyle Insurance Agency in Peoria, Ill., a property and casualty agency founded in 1984.
Unison, Inc. in Minnetonka, Minn., an employee benefits firm founded in 1980.
Park Row Associates in Providence, R.I., an employee benefits firm founded in 1994.
IBIS Advisors, an employee benefits and compensation consulting firm established in 1997 and based in Los Angeles.
Aires Consulting Group, Inc., headquartered in Batavia, Ill., founded in 1985, a licensed professional architectural and engineering firm providing consulting services.

Chicago-based Hub International Ltd., announced two acquisitions:

Other acquisitions announced during the month of October:

Short Hills, N.J.-based Bollinger acquired The Morville Agency of Newton, N.J.
New York-based Preferred Concepts, a national program administrator and specialty broker acquired Metro Insurance Services of New Jersey.
Towers Watson of New York acquired DaVinci Consulting Group.
Markel Corp. acquired Essentia Insurance Co. from OneBeacon Insurance Group. The acquisition is expected to be completed in January.

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AJG Leads October With 5 Acquisitions