Build what the country runs on.

Kolb Grading is a family-owned heavy-civil contractor that travels to the work: data centers, airports, energy sites, and infrastructure across the country. We self-perform, we invest in the equipment and training our crews use every day, and we have been doing it since Dave and Janet Kolb started the company in 1960. If you want steady work, modern iron, and a company that knows your name, we want to hear from you.