Kamminga & Roodvoets, Inc. (K&R) is a prominent contractor specializing in road building, site preparation, and underground utility construction, with operations centered in Grand Rapids, Michigan, and Tampa, Florida. Founded in 1951, the company originated from humble beginnings in a garage, when John Roodvoets allowed his son Roger and his friend Elwin Kamminga to start a bulldozing enterprise. What began as a small operation quickly expanded as they took on more complex projects, transitioning from basement excavations to substantial residential developments, and ultimately to large scale highway, underground, and airport work.
As K&R navigated through the decades, significant milestones marked its growth. By the 1960s, the company moved to its current office location, becoming a corporation and enhancing its equipment fleet. The firm shifted its focus from subcontracting to leading major projects, scaling up its capabilities significantly over the years.
The 1970s brought innovation, with the establishment of ventures such as Laser Alignment to advance excavating technology. Despite facing the tragic loss of its founders, K&R cultivated a new generation of leaders ensuring the sustainability of its founder’s vision.
Today, K&R stands as an industry leader, renowned for its commitment to safety, quality, and efficiency. The company employs over 200 dedicated professionals who uphold its long-standing values of integrity and ambition. K&R continues to undertake significant infrastructure projects, reinforcing its reputation in both Michigan and Florida's construction landscapes, while relentlessly pursuing opportunities to innovate within the construction industry.
