About MWI

Proud of our history and are committed to the future

Moynahan Williams, Inc.

Moynahan Williams, Inc. is an Indianapolis-based real estate management and investment firm. It is owned by the father-son team of Don and Mike Williams and has been since 1998. The firm grew out of Moynahan Properties which was started in 1923 when the Moynahan family began building apartment buildings in Indianapolis. Donald Williams joined Tom Moynahan in 1982 and Michael Williams joined the firm in 1996.

Don Williams was born in Ohio but spent most of his youth in Indianapolis. He is a graduate of the University of Notre Dame and has been active in real estate for over 50 years. Don was a varsity member of the Notre Dame golf team and in his spare time still plays regularly. Don’s other interests include travel, reading, and exercising, but his passion has always been his family.


is a leader in the fee management business in Indiana.

Mike Williams, Owner/VP

Mike Williams was born and raised in Indianapolis. He is a proud graduate of Butler University and while a student there was a varsity member of their golf team. Mike's role at MWI includes managing all facets of the day-to-day operations, business development, and identifying new investment options. In his spare time Mike still competes in amateur golf tournaments, exercises, coaches high school golf, and watches his children compete in their various sporting and school endeavors.

MWI prides itself on the quality of services that we offer our clients and our tenants. Our guiding principles are honesty, a willingness to outwork our competition, fiscal responsibility, and treating everyone with the same respect we expect from others. It’s not flashy or innovative, but it is hard to do and our goal as a company is to perform in this manner day in and day out.

Moynahan Williams, Inc. has owned and managed investment real estate in Indiana since 1923. Through the guidance of father and son team, Don and Mike Williams, the company has grown to include many aspects of the commercial real estate business.