NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01

NAICS 238910 — Site Preparation Contractors

Site Preparation Contractors

NAICS 238910 is the national industry code for site preparation contractors establishments in the United States. The Small Business Administration sets a size standard of $19.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: $19.0 View full SBA standard

Exclusions & Cross-References

Activities classified under other official NAICS codes:

construction equipment rental without an operator (See 532410 Construction, transportation, mining, and forestry machinery and equipment rental and leasing (CAN))
crane rental with operator (See 238990 All other specialty trade contractors (US))
dismantling tanks in oil fields (See 213118 Services to oil and gas extraction (CAN))
drilling oil and gas field water intake wells (See 213118 Services to oil and gas extraction (CAN))
earth retention or underwater trenching (See 237990 Other heavy and civil engineering construction (US))
line slash maintenance (See 561730 Landscaping services)
mining blast hole drilling (See 213117 Contract drilling (except oil and gas) (CAN))
nuclear power plant decommissioning and environmental remediation work, such as the removal of underground steel tanks for hazardous materials (See 562910 Remediation services (US))
overburden removal (See 213119 Other support activities for mining (CAN))
rights of way maintenance (See 561730 Landscaping services)
tree and brush trimming for overhead utility lines (See 561730 Landscaping services)
underground tank removal containing hazardous material (See 562910 Remediation services (US))

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

blast hole drilling (except mining) blasting and trenching, construction site building demolition construction equipment (except cranes) rental with operator digging foundations excavating contractors foundation drilling contractors land clearing, contractors pile driving, contractors power, communication and pipe lines, rights of way clearance (except maintenance) septic tanks and weeping tile, installation

Complete Index of Activities (58 recognized activities) ▼

aerial lift trucks and bucket trucks rental with operator (used by electric utilities or tree trimming)

backfilling, construction

backhoes, rental with operator

blast hole drilling (except mining)

blasting and trenching, construction site

blasting, building demolition

boring for building construction

brush clearing or cutting

building demolition

bulldozing, unspecified, rental with operator

caisson (i.e., drilled building foundations), construction

concrete breaking and cutting for demolition

construction equipment (except cranes) rental with operator

core drilling and test boring for construction

crawler work, rental with operator

cutting of rights-of-way contractor

demolishing buildings and structures

demolition contractor

dewatering, contractors

diamond drilling for building construction, contractors

digging foundations

dirt moving, for construction

dismantling of engineering structures (e.g., oil storage tanks)

drainage system installation (e.g., cesspool, septic tank), contractors

drilled pier (i.e., for building foundations) contractors

drilled shaft (i.e., drilled building foundations), construction

driving piling, general contractors

dry well construction, contractors

earth moving, contractors

equipment rental with operator (except cranes)

equipment rental, cat work (excavating, renting out), with operator

excavating contractors

excavating, earthmoving or land clearing, agricultural

excavating, earthmoving or land clearing, mining (except mine site overburden removal)

excavating, earthmoving, or land clearing contractors

foundation digging (i.e., excavation)

foundation drilling contractors

grading, construction site

grave excavation, contractors

ground thawing for construction site digging, service of

heavy machinery operations (construction), rental with operator

house demolishing contractors

hydrodemolition (i.e., demolition with pressurized water), contractor

land clearing, contractors

land levelling, irrigation, contractors

line slashing or cutting (except maintenance)

pile driving, contractors

piling (i.e., bored, cast-in-place, drilled), building foundation, contractors

power, communication and pipe lines, rights of way clearance (except maintenance)

rights of way, cutting (except maintenance)

septic systems, replacement and repair

septic tanks and weeping tile, installation

shovel equipment work, construction, rental with operator

soil compacting service, contractors

soil test drilling (for building construction)

sound barriers (earth mounds), construction

underground tank (except hazardous material) removal

wrecking, buildings or other structures, contractors

Official data

Feature	Description
Official name	North American Industry Classification System (NAICS) 2022
Issuing authority	U.S. Census Bureau with OMB, Statistics Canada, and INEGI
Tax authority	Internal Revenue Service (IRS)
Purpose	Statistical business classification and federal contracting (SAM.gov, SBA standards)
Used in	SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk)
Active since	2022 (current edition)
Hierarchy level	Sector (2-digit)
Source	https://www.census.gov/naics/