Maas Brothers Construction

Maas Brothers Construction, Inc. has long been a successful family business. Established by brothers Albert W. and Alvin (Ollie) Maas in 1922 in Watertown, it is one of Wisconsin’s oldest general contracting firms. After surviving the Great Depression, the company thrived during the post-World War II construction boom. In the 1940s, Albert’s sons, Earl and Albert Jr., joined the company. Together, they ran the family business from 1949 until 1990, when they retired and handed management of the company over to Earl’s son, Robert. Because of Maas Brothers’ reputation for providing quality work, many clients from the 1940s and ‘50s still rely on the company for their construction and plant maintenance needs.