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.
Data centers & hyperscale
Mission Critical
Retail, office & institutional
Commercial
Remediation & cleanup
Environmental
Pipelines, water & power
Utilities & Infrastructure
Highways, airports & rail
Transportation
Power, oil, gas & renewables
Energy
Manufacturing & Processing
Industrial
Runways & airfields
Aviation
Parks, trails & venues
Recreation
Subdivisions & communities
Residential
Where we work
Industries
From the markets we’ve served for decades to the three frontiers driving heavy-civil demand today.
Selected work
Projects
A snapshot of recent work. Each project: what it was, where, and the scope we self-performed.
Wyndstone
Kolb Grading, LLC was chosen by McBride Duello, LLC to perform the grading and utility install at Wyndstone, a residential...
Wolf Hollow Golf Club
Carved out of the rolling hills of Franklin County, Wolf Hollow Golf Course landscape was created with more than 175...
Weldon Spring Superfund Site
The Department of Energy’s Weldon Spring Site became contaminated as a result of processing and disposal activities that took place...
Veolia Oakridge Landfill
Kolb Grading, LLC was selected to perform many phases of this landfill. On this particular project, we closed the landfill....
Upper Cedar Creek Reclamation
The State of Missouri hired Kolb Grading, LLC to perform the reclamation work at Upper Cedar Creek in Boone County,...
Troy Cuivre Elementary School
Kolb Grading, LLC was selected by Freise Construction to perform grading andfoundation preparation for the Wentzville Frontier Middle School in...
The Arbors at Meramec Bluffs
Kolb Grading, LLC was selected by JHB Properties Inc. to perform gradingand excavation for The Arbors at Meramec Bluffs in...
Team Track Facility
Kolb Grading, LLC was selected to perform clearing and major excavationat the Team Track Facility located in Washington, Missouri near...
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.
