Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, October 28 at 2:00 PM ET

Register Free →
CLEATUS
Get CLEATUS
← Back to NAICS Codes
NAICS Code· 238910

NAICS 238910: Site Preparation Contractors

This industry comprises establishments primarily engaged in site preparation activities, such as excavating and grading, demolition of buildings and other structures, and septic system installation. Earthmoving and land clearing for all types of sites (e.g., building, nonbuilding, mining) is included in this industry. Establishments primarily engaged in construction equipment rental with operator (except cranes) are also included. Illustrative Examples: Blasting, building demolition Building interior gutting and stripping Concrete breaking and cutting for demolition Cutting new rights of way Demolition, building and structure Exterior demolition contractors Foundation digging (i.e., excavation) Foundation drilling contractors Grading construction sites Interior demolition contractors Dewatering contractors Dirt moving for construction Equipment rental (except crane), construction, with operator Excavating, earthmoving, or land clearing contractors Line slashing or cutting (except maintenance) Septic system contractors Trenching (except underwater) Underground tank (except hazardous) removal Wrecking, building or other structure Whole building deconstruction Cross-References. Establishments primarily engaged in--Show more

NAICS 238910 – Site Preparation Contractors encompasses specialized earthmoving, grading, clearing, and site development services essential to federal infrastructure and facility construction projects. This sector includes excavation, topsoil removal, drainage installation, compaction, blasting, and utility trenching—all critical precursors to building construction, roadways, airfields, and energy infrastructure.

1.9K
Active Contracts
$186.8M
Total Obligations (12mo)
364
Awarded Contracts (12mo)
270
Contractors Awarded (12mo)
2
Median Bidders per Award
+18.3%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 238910.

AI Industry Description

NAICS 238910 – Site Preparation Contractors encompasses specialized earthmoving, grading, clearing, and site development services essential to federal infrastructure and facility construction projects. This sector includes excavation, topsoil removal, drainage installation, compaction, blasting, and...

NAICS 238910 – Site Preparation Contractors encompasses specialized earthmoving, grading, clearing, and site development services essential to federal infrastructure and facility construction projects. This sector includes excavation, topsoil removal, drainage installation, compaction, blasting, and utility trenching—all critical precursors to building construction, roadways, airfields, and energy infrastructure. Contractors in this space operate at the foundational layer of the built environment, often working under prime general contractors or directly for federal agencies to enable subsequent phases of construction. Their work is governed by strict environmental compliance standards, geotechnical specifications, and erosion control protocols, making technical expertise and regulatory adherence key differentiators in the federal marketplace. Top contractors in this space include MAVERICK CONSTRUCTORS, LLC, ASPEN CONSTRUCTION COMPANY, AAECON GENERAL CONTRACTING LLC, C-A NATIVE CONSTRUCTORS INC, and BHPE LLC, among others. The competitive landscape is dominated by mid-sized firms and small businesses, including Native-owned and veteran-owned entities, with strong capabilities in heavy civil earthwork and environmental site remediation. Many firms specialize in mobilizing rapidly to remote or sensitive sites, leveraging specialized equipment and permitting expertise to meet tight federal timelines. Primary federal buyers include the Department of Defense, Department of Transportation, Department of the Interior, and Department of Energy, with additional demand from NASA, the Department of Veterans Affairs, and the Department of Homeland Security. These agencies require site preparation for military base upgrades, wildfire resilience projects, national park infrastructure, energy transmission corridors, and veteran facility expansions—often in ecologically sensitive or geographically challenging terrains. The market is characterized by high entry barriers due to equipment costs, permitting complexity, and safety compliance requirements, but offers consistent opportunity density across defense, transportation, and environmental resilience programs. Contractors with proven experience in federal environmental regulations, subsurface utility coordination, and sustainable grading practices are best positioned to compete effectively.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 238910 work as a small business.

$19.0M
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 238910, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
CLARK CONSTRUCTION GROUP LLC$33.7M1
NUMUNU MARTINEZ JV, LLC$7.2M1
BHATE ENVIRONMENTAL ASSOCIATES, INC.$6.4M3
SKE SUPPORT SERVICES GMBH$6.3M1
DEFENDERCO LLC$6.1M1
COPPER CREEK, LLC$6.0M1
BLUE TRIDENT, LLC$5.7M8
THE BLACKLEDGE GROUP, INC.$5.6M1
BRICE INTEGRATED LLC$4.9M1
EQUIP-CO UNLIMITED OF NY LLC$4.3M1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 238910.

Department Of Defense134 awards$86.9M
General Services Administration1 award$33.7M
Department Of Veterans Affairs12 awards$18.1M
Department Of The Interior65 awards$11.4M
Department Of Agriculture35 awards$9.1M
National Aeronautics And Space Administration1 award$7.2M
W071 Endist Seattle8 awards$2.6M
Department Of Commerce2 awards$2.4M
Ner Supply MABO(45000)1 award$2.2M
Department Of Homeland Security10 awards$1.9M

Competition

How many companies historically bid on federal awards in NAICS 238910, from bidder counts reported on USAspending.

Fewer Bidders

Median under 3 bidders per reported award. · 19,807 reported awards

Median Bidders

2

Per reported award, all-time

Single-Bid Awards

45%

Share of reported awards with one bidder

10+ Bidder Awards

8%

Share of reported awards with 10+ bidders

Reported Awards

19,807

90% of 21,927 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
238910This Code
Site Preparation Contractors
Fewer Bidders245%
19,80790% of 21,927
23891NAICS Industry
Fewer Bidders245%
19,80790% of 21,927
2389Industry Group
Other Specialty Trade Contractors
Fewer Bidders244%
102,57790% of 113,611
238Subsector
Fewer Bidders245%
453,12790% of 505,706
23Sector
Construction
Fewer Bidders240%
1,132,66189% of 1,275,170

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Site Preparation Contractors, by shared sector, subsector, and industry group.

All Other Specialty Trade Contractors

This industry comprises establishments primarily engaged in specialized trades (except foundation, s...
238990Same Industry GroupHigh Similarity

Poured Concrete Foundation and Structure Contractors

This industry comprises establishments primarily engaged in pouring and finishing concrete foundatio...
238110Same SubsectorMedium Similarity

Structural Steel and Precast Concrete Contractors

This industry comprises establishments primarily engaged in (1) erecting and assembling structural p...
238120Same SubsectorMedium Similarity

Framing Contractors

This industry comprises establishments primarily engaged in structural framing and sheathing using m...
238130Same SubsectorMedium Similarity

Masonry Contractors

This industry comprises establishments primarily engaged in masonry work, stone setting, bricklaying...
238140Same SubsectorMedium Similarity

Glass and Glazing Contractors

This industry comprises establishments primarily engaged in installing glass panes in prepared openi...
238150Same SubsectorMedium Similarity

Roofing Contractors

This industry comprises establishments primarily engaged in roofing. This industry also includes es...
238160Same SubsectorMedium Similarity

Siding Contractors

This industry comprises establishments primarily engaged in installing siding of wood, aluminum, vin...
238170Same SubsectorMedium Similarity

Explore contracts across multiple NAICS codes Browse all NAICS Codes

Dotted
NAICS 238910 FAQ

Frequently Asked Questions

NAICS code 238910 covers Site Preparation Contractors. This industry comprises establishments primarily engaged in site preparation activities, such as excavating and grading, demolition of buildings and other structures, and septic system installation. Earthmoving and land clearing for all types of sites (e.g., building, nonbuilding, mining) is included in this industry. Establishments primarily engaged in construction equipment rental with operator (except cranes) are also included. Illustrative Examples: Blasting, building demolition Building interior gutting and stripping Concrete breaking and cutting for demolition Cutting new rights of way Demolition, building and structure Exterior demolition contractors Foundation digging (i.e., excavation) Foundation drilling contractors Grading construction sites Interior demolition contractors Dewatering contractors Dirt moving for construction Equipment rental (except crane), construction, with operator Excavating, earthmoving, or land clearing contractors Line slashing or cutting (except maintenance) Septic system contractors Trenching (except underwater) Underground tank (except hazardous) removal Wrecking, building or other structure Whole building deconstruction Cross-References. Establishments primarily engaged in--

Recently Posted in Site Preparation Contractors

NAICS: 238910
New
SLED
Drainage Improvements and Rock Check Dam InstallationThis subcontract for the West Virginia Department of Transportation involves the installation of drainage systems and erosion control structures in Lewis. The selected provider will work under prime contractors to implement rock check dams and ditchline flow improvements using specified rock materials, ensuring all work strictly adheres to WV DOT drainage specifications. The project is categorized under NAICS code 238910 and is scheduled for a response deadline of December 8, 2026. The primary objective is the successful delivery of installed rock check dams and enhanced ditchline flow to support regional infrastructure requirements.
West Virginia Department of Transportation

POSTED

in about 2 months

DEADLINE

in about 2 months
View Details
NAICS: 238910
New
SLED
Steel Bearing Pile InstallationThis subcontract focuses on the installation of steel bearing piles for bridge foundation projects under the West Virginia Department of Transportation. The scope of work specifically involves the installation of HP14X73 steel bearing piles and the provision of necessary foundation protection to ensure the delivery of installed and verified foundation piles for prime contractors. The project is located in Wyoming and is categorized under NAICS code 238910. The solicitation is scheduled for November 17, 2026, with the response deadline set for the same date.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Bridge Structure DismantlingThis subcontract for the West Virginia Department of Transportation involves the dismantling of existing bridge structures and building demolition. The scope of work includes executing structure dismantling according to Item 203001-000, performing well and septic tank abandonment, and ensuring the complete removal of all structures and debris from the project site. The project is categorized under NAICS code 238910 and is located in Wyoming. It is designed for a subcontractor to support prime contractors in the delivery of these specialized demolition and removal services.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Excavation and Subgrade PreparationThis subcontract involves performing unclassified excavation and subgrade preparation for prime contractors on West Virginia Department of Transportation bridge projects located in Wyoming. The scope of work includes the execution of 1,816 cubic yards of unclassified excavation and 158 cubic yards of subgrade preparation specifically for roadway and bridge foundations. The primary objective is to deliver excavated areas and compacted subgrade that strictly adhere to project specifications. This work falls under NAICS code 238910 and is associated with a posting date of November 17, 2026.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Clearing and Grubbing ServicesThis subcontract for Clearing and Grubbing Services involves the removal of vegetation, debris, and organic material to support prime contractors on West Virginia Department of Transportation bridge projects. The scope of work specifically requires the execution of clearing and grubbing according to Item 201001-000 to ensure the roadway and bridge sites are fully prepared for subsequent excavation and construction activities. The project is located in Wyoming and falls under NAICS code 238910. The contract is associated with the West Virginia Department of Transportation and has a posted date and response deadline of November 17, 2026.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Earthwork, Clearing, and DemolitionThis subcontract focuses on earthwork, clearing, and demolition services for road widening projects managed by the West Virginia Department of Transportation, specifically within Putnam. The contractor is responsible for performing clearing, grubbing, and building demolition, as well as the abandonment of wells and septic tanks. The scope of work includes dismantling structures, excavation, embankment, borrow excavation, and subgrade preparation using heavy machinery to ensure the site is cleared and graded for base course installation. The project is categorized under NAICS code 238910 and is associated with a posting and response deadline of November 17, 2026. The primary objective is to support prime contractors by delivering a site that is fully prepared for subsequent construction phases.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Utility and Inlet Adjustment ServicesThis subcontract for Utility and Inlet Adjustment Services is issued by the West Virginia Department of Transportation for projects located in Fayette County. The scope of work involves adjusting road utilities and drainage structures for prime contractors, specifically focusing on the adjustment of Type B Inlets through the use of specialized concrete cutting and lifting equipment to ensure all drainage inlets are fully functional. The contract falls under NAICS code 238910 and is scheduled for a response deadline of November 17, 2026. The primary objective is to provide essential infrastructure support for Division of Highways projects within the specified region.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Earthwork and ExcavationThis subcontract for Earthwork and Excavation involves performing excavation and site preparation for prime contractors on West Virginia Department of Transportation roadway projects in Marshall. The scope of work includes rock borrow excavation, the installation of base course reinforcement geogrid, and general embankment activities utilizing rock hammers and excavators to deliver prepared road bases and excavated areas. To be eligible, contractors must hold WVDOT prequalification in Division 200-Earthwork, specifically categories 206 and 207. The project falls under NAICS code 238910 and is associated with the West Virginia Department of Transportation.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Unclassified Excavation ServicesThis subcontract for Unclassified Excavation Services involves performing general excavation and earth-moving tasks for prime contractors on West Virginia Department of Transportation highway projects located in Northfork-Maybeury, McDowell. The scope of work requires the execution of 30,000 cubic yards of unclassified excavation utilizing backhoes, excavators, and hauling equipment to deliver a site prepared according to project specifications. The contract falls under NAICS code 238910 and mandates strict compliance with prevailing wage rates. All necessary responses must be submitted by November 17, 2026.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Earthwork and Clearing ServicesThis subcontract for Earthwork and Clearing Services involves providing specialized excavation and site preparation for prime contractors on West Virginia Department of Transportation facility projects in Putnam. The scope of work includes the execution of 4,484 cubic yards of unclassified excavation, 2,888 cubic yards of borrow excavation, and 298 cubic yards of subgrade preparation. Additionally, the contractor is responsible for the installation of 8,090 square yards of separation fabric using heavy excavation equipment to deliver a fully graded and prepared subgrade. To be eligible for this contract, providers must meet prequalification standards in Division 200 for Earthwork as mandated by the WVDOH. The project falls under NAICS code 238910 and is managed by the West Virginia Department of Transportation.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Aggregate Base Course InstallationThis subcontract for Aggregate Base Course Installation involves the supply and installation of stone, gravel, or slag base layers for prime contractors working on West Virginia Department of Transportation highway projects. The scope of work specifically includes the installation of Class 10 Aggregate Base Course, Stone or Gravel, and Slag in accordance with WV DOH Division 300 specifications, utilizing specialized equipment such as graders, compactors, and rollers to deliver a compacted aggregate base layer. The project is located in Barbour, West Virginia, and requires the contractor to hold WV DOH prequalification for base work. This opportunity is categorized under NAICS code 238910 and is associated with the West Virginia Department of Transportation.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details
NAICS: 238910
New
SLED
Earthwork and Excavation ServicesThis subcontract for Earthwork and Excavation Services involves performing site preparation, excavation, and material removal for prime contractors on West Virginia Department of Transportation highway projects. The scope of work includes unclassified excavation, rock borrow excavation, and shot rock operations, all of which must be executed according to WV DOH Division 200 specifications to deliver a properly excavated and graded site. The project requires the use of specialized machinery, including excavators, loaders, and rock drilling and blasting equipment. To be eligible, providers must meet WV DOH prequalification standards and ensure full compliance with Davis-Bacon wage requirements. The work is centered in Barbour, West Virginia, under NAICS code 238910.
West Virginia Department of Transportation

POSTED

in about 1 month

DEADLINE

in about 1 month
View Details

Win Contracts in Site Preparation Contractors

Get AI-powered intelligence on NAICS 238910 procurement

Real-time contract opportunities for NAICS 238910 (Site Preparation Contractors)

AI-powered matching based on your business capabilities and past performance

Competitive analysis of contractors winning awards in this industry

Automated alerts when new opportunities are posted

Miguel
Hillary
Keith Deutsch
Christine

Join 750+ contractors already using CLEATUS