Leading the Way for Generations

MSO®, Inc. (The Mutual Service Office, Inc.) was incorporated in 1944 as a private venture by a group of New Jersey mutual insurers who wanted an alternative to the sole stock bureau in New Jersey at the time. The 1944 office staff consisted of the Manager, Mr. Edwin Botbyl, two full time clerks and one assistant conducting town protection surveys. The rating system was developed in the company’s formative years by J.R. Harris, founder of the original The Mutual Service Office of Branchville. A variation of that system is still in use at MSO today.

Based on our commitment to solving customers’ challenges, we have grown from a local and Northeast region specialist into a national service provider for mutual and stock companies. No matter how many satisfied customers join our ranks, our goal at MSO remains the same—to provide insurers with an easier, more profitable way to underwrite risk. We offer:

  • No hidden costs for services like statistical reporting or product development
  • Expert guidance and support when modifying standardized rules and forms
  • Training for your staff and/or agents in the use of our products