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Mark Mannisto began their work experience in 1976 at Polymershapes, where they worked as a Project Design Engineer. In this role, they were responsible for designing bandit barrier systems for financial institutions, utilizing Auto Cad and Excel extensively in the engineering process. Mark gained over 40 years of knowledge and experience in the security industry. Mark retired in February 2022 from their role at Insulgard Security Products.

Mark Mannisto attended Lansing Community College from 1996 to 2002. No specific degree or field of study information is provided.