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I am still “the new guy” at Mandeville Insurance Agency, Inc.  I have been in the insurance world since 2010.  I work with all types of commercial insurance and oversee the day to day activities in the office.  I have the privilege of working next to a wonderful staff of talented insurance individuals.

 My wife and I live on a ranch east of Columbus and have 3 young, active, and very energetic boys.  I am actively involved with the Big I of MT and am the 2019 President. I sit on various local boards to stay involved with our community.  Our family enjoys any outdoor activities and is heavily engaged in youth sports.  With the busy and crazy lifestyle, we enjoy you can reach me anytime at 406-670-5461. • Cell:  406-670-5461

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I began my insurance career with Mandeville Agency in 1975. I am a Certified Insurance Counselor and a licensed insurance consultant. I am now officially the old guy who sits in the back office. I specialize in life and health insurance and would be happy to visit with you about Medicare supplement insurance, long term care insurance and health and life insurance. I am a native of Columbus and am convinced that there is no better place to live and raise a family than Stillwater County. My wife, June, and I have two grown sons and five grandchildren. •  Cell: 406-321-5361



Although a Columbus native, I started working in the insurance business in 1983 in Anchorage, Alaska. We moved back to Montana in 1993 and I started working at Mandeville Insurance Agency in 1996. I work primarily with personal insurance, writing home and automobile insurance. I also work as Webb's assistant helping with his farm and ranch and commercial insurance accounts. •  Cell: 406-290-4549


TJ Hansen

I was born and raised in Molt, MT.  I am married to my beautiful wife Maggie and we have a new baby boy named Henry.  My wife and I love everything about MT and try to do our best to enjoy the many great adventures that this great state has to offer.  I am licensed in P&C and Crop Insurance.   With an extensive agriculture background my primary focus, and passion is the ag side of the business.  I enjoy meeting new clients and helping them find a solution to their insurance needs.  I look forward to helping you in the future! •  Cell: 406-670-0154 



I am a Colorado Native who fell in love with Montana and have been part of the Stillwater Community since 2011. I value my time with my family and friends and living on our family ranch. My hobby is anything and everything home design.  I enjoy working with people and being able to assist them with their needs as I have been in customer service for over 15 years. I am excited to be part of the team at Mandeville Insurance Agency. I am currently assisting Tom and Susie with their accounts and studying for my insurance license. I look forward to working with you!

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I began working remotely for Mandeville Agency in April 2021, although I previously was employed here from 2000 – 2007 before moving to Colorado. I was born & raised in Absarokee, living and graduating high school, before moving to Columbus.


I currently live in Western Colorado with my husband of 20+ years. We have one son, Alex, who is 22, and three dogs who keep us very active outdoors. My main focus will be data entry & processing quotes and applications for the other agents in the office. My hope is to be back in Montana some day!


Pete Wenzel

I grew up in Broadus, MT and started my insurance career in 2013 at Broadus Insurance. I am new at Mandeville Insurance, starting my remote position in 2021, and have loved every minute of it. I truly enjoy helping Montana people and businesses from the many risks we face in our great state. I enjoy spending time with my fiancé in the outdoors, camping, hiking and golfing.



I have worked for Mandeville Agency since 1982.  My time at Mandeville is spent working commercial insurance, keeping up with Tom in assisting him with his accounts & keeping the office running smoothly as the office manager.  I grew up in Absarokee & in 2001 moved to Columbus.  My heart belongs to my two daughters and three grandchildren who I adore.  After work and on the weekends, you’ll find me doing my favorite past-time gardening & landscaping.   I also enjoy traveling and attending my grandchildren’s many activities! • Cell:  406-321-1452 

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Rhonda Peterson

I was born & raised in Rapelje, MT. I moved to Columbus in 2015 to take care of my mom. I love spending time with my family, especially camping, boating, fishing, and riding my side-by-side. I love the outdoors and the small-town life! I have been doing books for over 35 years and am excited to grow into the bookkeeping position at Mandeville Insurance Agency.





I was born and raised on the family cattle ranch west of Red Lodge, where I reside with my wife and three children today.

I have been a Montana insurance agent for 16+ years, earning my Certified Insurance Counselor designation in 2012.  My focus is farm/ranch and small business coverage, but offer all types of commercial and personal insurance services.

Over the years, I have been involved in the Rotary Club of Red Lodge, a coach for the high school football team, and active in the Independent Insurance Agents of Montana.  My heart is in Red Lodge, and am excited to be your hometown agent and a part of the Mandeville team! •  Phone: 406-425-4323   


RaeAnn Gransbery

I began my insurance career with Mandeville Insurance Agency in 1997 and returned to the office in June 2022 after a few years of working remotely. I am licensed in Property & Casualty and Multiple Peril Crop Insurance. My primary focus will be working with personal lines insurance, along with crop hail and MPCI insurance. My husband and I have one son and enjoyed raising him in Columbus. We love traveling, road trips, and value time spent with family and friends.

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