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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.

626
Active Contracts
$181.4M
Total Obligations (12mo)
356
Awarded Contracts (12mo)
271
Contractors Awarded (12mo)
2
Median Bidders per Award
+11.5%
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.

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 Defense143 awards$87.3M
General Services Administration1 award$33.7M
Department Of Veterans Affairs10 awards$18.1M
Department Of Agriculture33 awards$9.1M
Department Of The Interior59 awards$8.2M
National Aeronautics And Space Administration1 award$7.2M
Department Of Commerce2 awards$2.4M
W071 Endist Seattle6 awards$2.2M
Department Of Homeland Security9 awards$1.9M
Department Of The Treasury3 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. · 19,785 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

0

90% of 21,904 total awards

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%
19,78590% of 21,904
23891NAICS Industry
Fewer Bidders245%
19,78590% of 21,904
2389Industry Group
Other Specialty Trade Contractors
Fewer Bidders244%
102,48790% of 113,509
238Subsector
Fewer Bidders245%
452,41090% of 504,911
23Sector
Construction
Fewer Bidders240%
1,131,28289% of 1,273,592

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

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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
Removal of Existing StructuresThe contract involves the demolition and removal of existing shoreline structures including concrete and timber crib walls, boulders, concrete blocks, and associated debris, requiring specialized equipment and techniques to safely execute the work in a sensitive environmental area. The scope is focused on clearing obstructions along the Baltimore shoreline, with work expected to adhere to regulatory and safety standards for coastal remediation and debris disposal. This is a subcontract under the Maryland Department of Transportation, classified under NAICS code 238910 for site preparation and demolition services, with the response deadline and posting date both set for October 7, 2026. The place of performance is specifically identified as Baltimore, though no further address details are provided. The solicitation is open to qualified subcontractors through the designated BIDX portal, with no set-aside provisions indicated, suggesting eligibility is open to all compliant bidders without preference for small, minority, or veteran-owned businesses.
Maryland Department of Transportation

POSTED

in about 1 month

DEADLINE

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NAICS: 238910
New
SLED
Earthwork and Site PreparationThe contract encompasses earthwork and site preparation activities for highway construction, specifically requiring clearing, grubbing, excavation, and subgrade preparation. All work is to be carried out in Marion, West Virginia, under the oversight of the West Virginia Department of Transportation. The scope is focused on preparing the land and earthwork base to support the upcoming highway infrastructure, ensuring proper grading and stability for paved surfaces. The contract is categorized as a subcontract under NAICS code 238910, indicating it falls within the site preparation and specialized trade contracting sector. The solicitation was posted and has a response deadline both set for September 15, 2026, indicating a single-point bid submission window. All proposals must be submitted through the designated online portal linked to the West Virginia DOT’s letting system, and no set-aside provisions or additional organizational classifications are specified for this procurement.
West Virginia Department of Transportation

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Drill Operator ServicesThe contract pertains to the operation of drilling equipment for rock excavation and foundation work on a highway infrastructure project under the jurisdiction of the West Virginia Department of Transportation. Services are to be performed at sites in Doddridge and Harrison counties, with work focused on enabling stable foundation preparation through specialized drilling operations. The contract is classified as a subcontract under NAICS code 238910, which covers other heavy and civil engineering construction activities. The solicitation was posted on September 15, 2026, with a response deadline set for the same date, indicating an immediate or expedited procurement process. No set-aside provisions or small business preferences are indicated, and no point of contact information is provided, suggesting that all communication and proposal submission must go through the designated online portal at the provided UI link.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Civil Site Preparation and GradingThe contract entails comprehensive earthwork, excavation, and site grading operations to prepare the ground for a new highway alignment in a rural area of West Virginia, specifically centered around Doddridge and Harrison counties. As a subcontract under the West Virginia Department of Transportation, the work is classified under NAICS code 238910 for site preparation services and will involve precise land shaping and earthmoving to meet engineering specifications for the roadway project. All tasks must be completed in accordance with state transportation standards and environmental regulations applicable to rural construction zones. The solicitation was posted on September 15, 2026, with a response deadline set for the same date, indicating a rapid procurement timeline. The place of performance is localized to the designated counties, requiring contractors to demonstrate familiarity with regional soil conditions, topography, and access constraints typical of the area. The project does not specify any set-aside provisions, and the contracting agency is the West Virginia DOT, which will oversee compliance and quality control on-site. Contractors are expected to mobilize equipment and labor to perform large-scale earthwork operations efficiently while maintaining safety and minimizing environmental impact.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Earthwork and ExcavationThis contract pertains to comprehensive earthwork and excavation services for a transportation infrastructure project in Lincoln, West Virginia, under the oversight of the West Virginia Department of Transportation. The scope includes bulk earthmoving operations such as excavation, embankment construction, cut and fill activities, and final grading to prepare the site for subsequent construction phases. The work is classified under NAICS code 238910, indicating it is a subcontract for site preparation and related earthwork services, with no specific set-aside provisions designated. The solicitation was posted on September 15, 2026, with a response deadline set for the same date and time, suggesting a potential technical or administrative anomaly requiring immediate attention from interested parties. All work must be performed at the designated place of performance in Lincoln, and bidders are directed to the provided UI link for submission details and further information.
West Virginia Department of Transportation

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Shoring for Structure ExcavationThe contract involves the installation of temporary shoring systems to support excavations conducted near bridge abutments or foundation structures, ensuring stability and safety during construction activities. The work is classified under NAICS code 238910, indicating it falls within the specialty trade contracting sector, specifically for site preparation and related engineering services. This subcontract is being procured by the West Virginia Department of Transportation, with the place of performance located in Hancock, West Virginia, though specific details regarding the exact sites or structures are not provided. The solicitation was posted on September 15, 2026, with a simultaneous response deadline of the same date and time, suggesting an immediate or emergency procurement scenario. No set-aside type or agency organization details are specified, and the point of contact information is omitted, limiting visibility into the formal bidding process. The contract’s UI link directs to a proposal portal managed by BIDX, indicating this is an electronic procurement opportunity accessible through the agency’s designated vendor platform. All work must comply with state and federal standards for structural integrity and excavation safety, particularly in proximity to critical transportation infrastructure.
West Virginia Department of Transportation

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Concrete Patching – AbutmentsThe contract involves the repair of deteriorated concrete on bridge abutments under the NAICS code 238910, classified as a subcontract with the West Virginia Department of Transportation listed as the agency. The work is to be performed at a location in Ohio, though specific city and state details are not provided. Both the posting date and response deadline are listed as September 15, 2026, at 2:00 PM, indicating that proposals must be submitted by that time to be considered. No set-aside designation or organization type is specified, and no point of contact information is included in the data. The contract opportunity is accessible through a linked UI page on the BIDX platform for further details and submissions.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Concrete Patching – SuperstructureThe contract pertains to the repair of damaged concrete on bridge superstructures, specifically targeting bridge decks, beams, or girders, under the NAICS code 238910 for other heavy and civil engineering construction. It is classified as a subcontract and is administered by the West Virginia Department of Transportation, with the place of performance located in Ohio. The solicitation was posted and has an identical response deadline of September 15, 2026, indicating a simultaneous release and closing date, which may suggest a non-competitive or internally managed procurement. The contract does not specify a set-aside type or organization type, and no point of contact information is provided. Interested parties must submit proposals via the linked portal before the deadline to be considered for work on critical transportation infrastructure repairs.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Earthwork and GradingThe contract covers excavation, grading, cut and fill operations, and subgrade preparation for roadway construction under NAICS code 238910, classified as a subcontract. It is issued by the West Virginia Department of Transportation with the place of performance located in Hancock, West Virginia. The solicitation was posted on September 15, 2026, with the same date set as the response deadline, indicating a simultaneous posting and closing of the opportunity. No set-aside type or description is specified, and no point of contact information is provided. The proposal can be accessed via the provided UI link for further details and submission.
West Virginia Department of Transportation

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Pipe Culvert InstallationThe contract involves the installation of pipe culverts for drainage purposes beneath roadway alignments as part of infrastructure improvement efforts under the West Virginia Department of Transportation. The work is classified under NAICS code 238910, indicating it falls within the specialty trade contracting sector for site preparation and related civil works. The solicitation is structured as a subcontract with no set-aside provisions, meaning it is open to any qualified bidder without preference or restriction based on business size or ownership. Performance is required in Lincoln, West Virginia, with all work tied to specific roadway segments requiring drainage solutions. The posting and response deadline are both listed as September 15, 2026, suggesting a competitive bid process with no extension window, and interested parties must submit proposals by this date. The contract is accessible via a public UI link, providing transparency and a direct portal for submission and reference.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Bulldozer Operator ServicesBulldozer Operator Services is a subcontract opportunity issued by the West Virginia Department of Transportation for heavy earthmoving and grading tasks essential to highway alignment and site development. The work will be performed in Doddridge and Harrison counties, requiring skilled operators to utilize bulldozers for precise land shaping and preparation in support of infrastructure projects. The solicitation was posted on September 15, 2026, with the same date set as the response deadline, indicating an immediate or same-day evaluation window. The contract falls under NAICS code 238910, which classifies it as other heavy and civil engineering construction specialty trades. All performance must be completed on-site in the designated locations, and while no specific set-aside provisions are listed, the opportunity is structured as a subcontract under the state agency’s broader construction initiatives. Interested parties must submit proposals via the provided online portal by the deadline to be considered for award.
WVDOT

POSTED

in 16 days

DEADLINE

in 16 days
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NAICS: 238910
New
SLED
Earthwork and Grading ServicesThe contract involves earthwork and grading services for a six-lane highway expansion project under Caltrans specifications, requiring excavation, embankment construction, precise grading, and comprehensive site preparation to support infrastructure development. All work must adhere strictly to California Department of Transportation standards, ensuring compliance with safety, engineering, and environmental regulations for the highway expansion in Madera. This is a subcontract opportunity posted on September 3, 2026, with a solicitation response deadline set for the same date, indicating an immediate or accelerated procurement timeline. The NAICS code 238910 classifies the work under site preparation services, and the place of performance is confirmed to be in Madera, California. The contract is directly linked to Caltrans project 06-0H22U4, and bidders must access the official UI portal for proposal submission and detailed technical requirements.
California Department of Transportation

POSTED

in 5 days

DEADLINE

in 5 days
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