Trusted on the largest mission-critical sites in the country
We build the ground the future stands on.
A nationwide, niche heavy-civil contractor. Centrally located, we go wherever our clients build, from data centers and energy to aviation, industrial, and environmental cleanup.
Kolb isn't just a grading contractor. We self-perform the whole site.
Sitework, utilities, earthwork, demolition, crushing, paving, stabilization, and environmental. One accountable partner, coast to coast. Centrally based in Missouri, mobilized wherever the work is.
What we self-perform
Services
Fourteen scopes, consolidated into eight core capabilities: the full breadth of heavy-civil sitework under one roof.
Site Development
Environmental
Stabilization
Earthwork
Crushing & Aggregate
Asphalt & Paving
Utilities
Demolition & Blasting
Mission Critical
We build the digital frontier.
Hyperscale data centers, neo-cloud campuses, and the power infrastructure behind them. When uptime is everything, Kolb self-performs every major scope, earthwork to final grade, on the sites shaping the next industrial revolution.
Trusted by the world's leading hyperscalers
Why Kolb
The Kolb advantage
Self-perform everything
One accountable team across every major scope, fewer subs, tighter schedules, better control.
Certified & equipped
Environmental certifications, Helix Pier foundations, and a modern, tech-driven fleet.
Safety
first
A safety culture built for the scale and complexity of mission-critical sites.
Fast, reliable pay
Industry-leading days-payable. Vendors and partners choose to work with us because we pay quickly.
Where we work
Industries
From the markets we’ve served for decades to the three frontiers driving heavy-civil demand today.
Mission Critical
Hyperscale data centers, neoclouds, third-party providers
Commercial
Retail, office & institutional
Industrial
Concrete & industrial plants, manufacturing, processing
Energy
Power, oil, gas & renewables
Aviation
Runways & airfields
Transportation
Highways, airports & rail
Utilities & Infrastructure
Pipelines, water & power
Environmental
Remediation & cleanup
Recreation
Parks, trails & venues
Residential
Subdivisions & communities
Selected work
Projects
A snapshot of recent work. Each project: what it was, where, and the scope we self-performed.
Wyndstone
Kolb Grading was chosen by McBride Duello, LLC to handle grading and utility installation at Wyndstone, a residential development in...
Wolf Hollow Golf Club
Wolf Hollow Golf Course was carved out of the rolling hills of Franklin County, Missouri, with more than 175 feet...
Weldon Spring Superfund Site
The Department of Energy’s Weldon Spring Site in Missouri became contaminated through processing and disposal activities from the 1940s through...
Veolia Oakridge Landfill
Kolb Grading performed many phases of work at the Veolia Oakridge Landfill, ultimately closing the landfill in close coordination with...
Upper Cedar Creek Reclamation
The State of Missouri hired Kolb Grading to perform reclamation at Upper Cedar Creek in Boone County, where stream restoration...
Troy Cuivre Elementary School
Kolb Grading was selected by Freise Construction to perform grading and foundation preparation for the school site. The work included...
The Arbors at Meramec Bluffs
Kolb Grading was selected by JHB Properties Inc. to perform grading and excavation for The Arbors at Meramec Bluffs in...
Team Track Facility
Kolb Grading performed clearing and major excavation at the Team Track Facility in Washington, Missouri, near the Missouri River. The...
Family-owned. Built over generations.
Our Story
People trust Kolb because they know where we came from, a family business that grew from local grading into a nationwide heavy-civil contractor without losing the values it started with.
19XX
19XX
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19XX
Careers
Build Big Things.
Go where the work is.
From operators to project leadership, Kolb crews run the country’s most ambitious sites. Grow a career with a family-owned company that’s going places.
