Quick Contact

Agency Phone: 906-632-3337

After Hours Contact

On-Line Contact Form


Our Staff

Administrative Staff

Lynette Culbertson

Lynette Culbertson
  • Graduated from Roosevelt High School in Portland, OR
  • Moved to Michigan in 1998
  • Licensed in Insurance in 1999
  • Became a Partner of Superior Insurance Agency in 2009

Mallory Baier

Mallory Baier
  • Born and raised in Sault Ste Marie
  • Graduate of Sault Area High School
  • Began working for Superior Insurance in 2016
Commercial Lines Division

No Photo

John Madigan
  • Born in Munising Michigan in 1959, John Madigan has always been committed to the residents of the Upper Peninsula of Michigan. John graduated from Northern Michigan University in 1982 and taught high school until joining an insurance agency in 1995. He has been selling and servicing the insurance needs of the Eastern Upper Peninsula residents since that time. Currently an owner of the Superior Insurance Agency of Sault St. Marie he continues his commitment to his current clients and is always willing to help anyone with insurance needs.
  • John has served on many boards of directors and state agencies over his career.
  • He is married to Kristin Madigan and they have on daughter who is currently in graduate school.

Bill Goldenbogen

Bill Goldenbogen
  • Graduated in 1979 from Holy Cross High school, Marine City, Michigan
  • Graduated in 1984 from Wayne State University, Detroit Michigan with a Bachelor of Science in Business Management.
  • Over 28 years in the sales industry and also a licensed Realtor.
  • Moved to the Upper Peninsula in 2008 to become a partner in the Superior Insurance Agency
  • Licensed in Property, Casualty, Life and Health Insurance.

Heather London

Heather London
  • Life long resident of the Eastern Upper Peninsula.
  • Graduated from Pickford High school in 1997
  • Received a Bachelors of Science in History with a minor in Political Science from Lake Superior State University in 2003.
  • 2002 started working in the insurance field, and became licensed in 2004 as a Property and Casualty producer.
  • Joined the Superior Insurance Agency team in June of 2012 and became a Commercial Lines CSR in 2013.
Personal Lines Division

Shelley Bossom

Shelley Bossom
  • Grew up in the Central UP and attended Superior Central High School, Eben Junction, Mi.
  • Majored in Finance & Economics at Lake Superior State University in Sault Ste. Marie, MI.
  • My career in Insurance began in September of 2008, obtained my License to be an Agent for Property & Casualty Insurance in October of 2008.

Becky Hoornstra

Becky Hoornstra
  • Life long resident of Sault Ste Marie. A graduate of Sault Area High School
  • Attended Lake Superior State University where she took courses in Paralegal studies.
  • Joined the Superior Insurance Agency in April of 2009. In 2010 she received a Property and Casualty license.

No Photo

Kevin White
  • Graduated from Sault Area High School in 2007.
  • Graduated from LSSU in 2011 with a Bachelor of Science in Exercise Science and an Associate’s Degree in Health/Fitness
  •  Licensed in Property, Casualty, Life, and Health since 2014, started at Superior Insurance Agency in 2015.
  •  Works with several different non-profit organizations in the community
Employee Benefits Division (Life and Health)



Carrie Lemaster
  • Born in Sault Ste Marie Ontario.
  • Graduate of Sault Area High School and went on to earn an associates degree from the University of Phoenix.
  • Carrie has been with the Superior Insurance agency since 2012 and she plans to stay for many years to come!
  • Licensed in Life & Health
Maria (Lee) Brown Maria (Lee) Brown
  • A graduate of Sault Area High School and Lake Superior State University
  • Has lived in the Sault Ste Marie area for over 30 years
  • Licensed in Life and Health Insurance for both Personal and Commercial Group
  • Joined Superior Insurance Agency in 2014
Kryptronic Internet Software Solutions