In 1938 Alton A. Prock & Sons was founded by Alton A. Prock. The company was incorporated in 1963 and became known as Prock Marine Company.

Being a family business Prock Marine Company’s wall of presidents presently consists of Alton and his four sons, Wallace, Ancil, Merle and Maynard. Alton’s sons have since retired and currently three of his grandsons currently run the family business: Kevin, Todd and Eric; a fourth grandson, Randy retired in 2017. There are also five great-grandsons working in the company.

Prock Marine strives for honesty and efficiency with each and every one of our customers. We have received several outstanding contractor awards from the United States Army Corp of Engineers. In 1992 and 2008 we were given the Waterfront Development & Enhancement Award plaque from the Rockland-Thomaston Area Chamber of Commerce.

Prock Marine Company established an Employee Stock Ownership Program (ESOP) in 2012. This provides Prock Marine Company Employees with an ownership interest within Prock Marine Company.