naics code for residential construction contractors. 2361. naics code for residential construction contractors

 
 2361naics code for residential construction contractors Performing specialized construction work on houses and other residential buildings, generally on a subcontract basis: classified in NAICS Code - 238 - Specialty Trade Contractors

• Everything NAICS • NAICS Code Search • NAICS Code FAQ • NAICS to SIC Crosswalk • NAICS Code Appends • High Risk NAICS Code • SBA Size Standards. 23 Reviews. Concrete sealing, coating, waterproofing, or dampproofing--are classified in Industry 238390, Other Building Finishing Contractors; and Paving residential driveways, commercial parking lots, and other private parking areas--are classified in Industry 238990 , All Other Specialty Trade Contractors. . Division C: Construction | Major Group 15: Building Construction General Contractors And Operative Builders | Industry Group 152: General Building Contractors-residential 1521 General Contractors-Single-Family HousesNAICS Code 236220 - Commercial and Institutional Building Construction sits in the 2-digit Construction sector. Contractor Registration 550 S. Major Group 17: Construction Special Trade Contractors. NAICS Code List; NOC Code List; SIC Code List; SOC Codes;. 2012. The residential work performed may include new work, additions, alterations, maintenance, and repairs. This industry comprises establishments primarily responsible for the construction. NAICS Codes. 238350 - Finish Carpentry Contractors. , from. NAICS Code 238150 - Glass and Glazing Contractors is a final level code of the “Construction” Sector. 334600. Special trade contractors primarily engaged in the construction of private driveways and sidewalks are classified. . The industry comprises establishments primarily engaged in general contractors - residential buildings, other than single-family. 561730-09. General and special trade contractors primarily engaged in the construction of water and sewer mains, pipelines, and communications and power lines. NAICS Code 2379 – Other Heavy and Civil Engineering Construction. Search 1,625 Ocala general contractors to find the best general contractor for your project. Establishments primarily engaged in furnishing building cleaning and maintenance services, not elsewhere classified, such as window cleaning, janitorial service, floor waxing, and office cleaning. See Companies for SIC 1522. for "roofing contractor". 236220-03 - Basketball Court Construction. as terms to merit a NAICS code as a distinct green industry. This section provides information relating to employment and unemployment in construction. General and special trade contractors primarily engaged in the construction of water and sewer mains, pipelines, and communications and power lines. The industry comprises establishments primarily engaged in general contractors - residential buildings, other than single-family. It is part of the Foundation, Structure, and Building Exterior Contractors (2381) Industry Group, and part of the Construction (23) Sector. Industry: 1542—General Contractors—Nonresidential Buildings, Other than Industrial Buildings and Warehouses General contractors primarily engaged in the construction (including new work, additions, alterations, remodeling, and repair) of nonresidential buildings, other than industrial buildings and warehouses. industry comprises general contractor establishments primarily responsible for the construction of new multifamily residential housing units (e. NAICS Canada 2022 Version 1. NAICS Code Description. The NAICS code 23611 is described as Residential Building Construction. 1629 - Heavy Construction, Not Elsewhere Classified. The work performed may include new work, reconstruction, rehabilitation, and repairs. Establishments primarily engaged in: Manufacturing of industrial equipment with incidental installation-are classified in Sectors 31-33, ManufacturingNAICS 238900 - Other Specialty Trade Contractors These national industry-specific occupational employment and wage estimates are calculated with data collected from employers of all sizes, in metropolitan and nonmetropolitan areas in every state and the District of Columbia, in NAICS 238900 - Other Specialty Trade Contractors. 5213 - Dam or Lock Construction - Concrete Work - All Operations. House painting, residential. Painting contractors have the job of putting a fresh coat of paint on everything. Solv Energy LLC. 238910 ; Site Preparation Contractors . New Single-Family Housing Construction (except For-Sale Builders) 236116. Establishments primarily engaged in managing construction projects for others on a contract or fee basis, but assuming no responsibility for completion of the construction project, are classified in services, SIC Code. Building Finishing Contractors: NAICS 2383. Cypress Creek Rnwbles Hldngs L. 1 – 15 of 2,031 professionals. Performing specialized construction work on multifamily housing and other residential buildings, generally on a subcontract basis--are classified in Subsector 238, Specialty Trade Contractors; and Constructing and leasing residential buildings on their own account--are classified in Industry 531110 , Lessors of Residential Buildings and Dwellings. 11025 Westminster Lane, Oklahoma City, OK 73165. 0 : 236118 . 177 - Concrete Work. NAICS Code Description. SIC. 237110. These establishments include residential housing general contractors, operative builders and. 237110 ; Water and Sewer Line and Related Structures Construction . NAICS Code 238150 - Glass and Glazing Contractors is a final level code of the “Construction” Sector. 201 of the Code of Federal Regulations (CFR) or in SBA’s table of small. How Often Do NAICS Codes Change? NAICS Codes are updated across North America including The US, Canada & Mexico once every 5 years to reflect changes and innovations in the North American economy. . Special Trade Contractors, NEC (indoor swimming pool construction contractors) 236220. Facilities (except computer operation) support services. There are 1,064 companies verified as active in this industry in the USA with an estimated. The industry comprises establishments primarily engaged in residential remodelers . NAICS. NAICS. 17 - Construction Special Trade Contractors. Per AS 43. Water well drilling, digging, boring or sinking (except water intake wells in oil and gas fields) 237110. General building contractors who combine a special. Included in this industry are industrial building general contractors, industrial building for-sale builders, industrial building design-build firms, and industrial. 43290 Other construction installation. Links to OEWS estimates for other industries. Contractors, Article 4. North American Industry Classification System, code for Residential building construction is NAICS 23611. Examples: Aqueduct construction - general contractors, Cable laying construction. Professional Remodeling and Construction Management Since 1985. 1542-27. 238331 - Residential Flooring Contractors. In-depth Industry Analysis: Explore Comprehensive Details on NAICS Code Extended Pages. (314) 231-3700. For guides to other industries, see our index of over 400 industries. Residential Building Construction : 508,034: 236115: New Single-Family Housing Construction (except For-Sale Builders) 362,729: 236116: New Multifamily Housing. NAICS Code Description. 5469. 238221 - Residential Plumbing, Heating, and Air-Conditioning Contractors. g. General contractors primarily engaged in construction (including new work, additions, alterations, remodeling, and repair) of single-family houses. 238912 - Nonresidential Site Preparation Contractors. for "building-rental". & Drivers 3724 Door--Installation--Overhead & Drivers 5183 Plumbing NOC & Drivers. What is the US SIC Code for General Contractors - Nonresidential Buildings, Other Than Industrial Buildings and Warehouses? US SIC Code 1542. 91562 - Concrete or Cement Distributing Towers - Rented To Others - Installation, Repair or Removal Operations Only. Blast hole drilling (except mining) Blasting, building demolition. 15420300 Garage and service station contractors. Residential & Commercial Painters (view report) House Painting & Decorating Contractors (view report) Comprehensive industry research reports provide in-depth industry analysis and five-year forecasts, with special focus on the underlying structure and external. Airport runway construction - general contractors, Alley construction - general contractors, Asphalt paving: roads, See Companies for SIC 1611. NAICS. Federal government websites often end in . k. The NAICS code 238340 is described as Tile and Terrazzo Contractors. NCCI Class Code. 020(d) IF the Alaska NAICS code you have chosen falls within a regulated profession, THEN an Alaska business license will not be issued UNTIL you are able to provide a. g. 1731 - Electrical Work. 91583 Contractors--Subcontracted Work--In Connection with Building Construction, Reconstruction, Repair or Erection--One- or Two-Family Dwellings. Code Systems. Incinerators, building equipment type, installation: 238290: 238290: Performing specialized construction work on houses or other residential buildings, generally on a subcontract basis--are classified in Subsector 238, Specialty Trade Contractors; and Constructing and leasing residential buildings on their own account--are classified in Industry 531110 , Lessors of Residential Buildings and Dwellings. 236115. 23832 - Painting and Wall Covering Contractors. Spyglass Construction. Special trade contractors primarily engaged in carpentry work. The NAICS code for general contractors is 236115 when working primarily on new residential single-family dwellings. 48: Electrical power generation. Extended NAICS Codes (8-digit) for Masonry Contractors. 238350-07 - Garage Doors Repairing. The five-digit code denotes the specific NAICS industry. Construction equipment rental with an operator (except cranes) or preparing land for building construction-are classified in NAICS Code - 23891 - Site Preparation Contractors. . NAICS 236 - Construction of Buildings NAICS 237 - Heavy and Civil Engineering Construction NAICS 238 - Specialty Trade Contractors NAICS 233 - Building, Developing, and General Contracting NAICS 234 - Heavy Construction NAICS 235 - Special Trade ContractorsNAICS Code Description. Iap-Hill LLC. 236116. See Companies for SIC 3271. 5 . 423300. 213112. S. 572,056. 1,154. For some business types, there may be a similar industry to NAICS Code 238911 - Residential Site Preparation Contractors that is a better classification match. 0 238320 Painting and Wall Covering. Mobile (manufactured) home rental or leasing, on-site. The related GL Class Code (s) for NAICS Code 238990 - All Other Specialty Trade Contractors is: 91560 - Concrete Construction. What is the Naics code for residential construction? The NAICS, a. SIC Search. . 63010 - Dwellings - One - Family Lessor's Risk Only. Industry 236116, New Multifamily Housing Construction (except For-Sale Builders); Remodeling or repairing existing houses and other residential buildings, either for others or on own account for sale--are classified in U. - converts to SIC codes 1522,1531,1541,1542,1799,8741. 2023-06-01. 1629 - Heavy Construction, Not Elsewhere Classified. This industry comprises establishments commonly referred to as contractors primarily engaged in (1) cutting materials owned by others for apparel and accessories and/or (2) sewing materials owned by others for apparel and accessoriesWhat is the NAICS Code for Painting and Wall Covering Contractors? NAICS Code 238320. 2018-03-23. This BLS industry comprises establishments primarily engaged in nonresidential site preparation activities, such as excavating and grading, demolition of buildings and other structures, septic system installation, and house moving. g. 19. NAICS Code Description. NAICS Code 236115. NAICS Code 2373 – Highway, Street, and Bridge Construction. Before sharing sensitive information, make sure you're on a federal government site. Industry 236118. industry comprises establishments primarily responsible for the remodeling construction (including additions, alterations, reconstruction, maintenance, and repairs) of houses and other residential buildings. 1521 - General Contractors-Single-Family Houses 1522 - General Contractors-Residential Buildings, other than Single-Family. is included in this industry. g. Industry: 1799—Special Trade Contractors, Not Elsewhere Classified. . The related NAICS Code (s) for NCCI Workers Compensation Class Code 5223 - Swimming Pool - Construction - Not Iron or Steel & Drivers is: 238990 - All Other Specialty Trade Contractors. Included in this industry are residential housing general contractors (i. additions, alterations and renovations of multifamily buildings, by operative builders. These national industry-specific occupational employment and wage estimates are calculated with data collected from employers of all sizes, in metropolitan and nonmetropolitan areas in every state and the District of Columbia, in NAICS 236100 - Residential Building. The related GL Class Code (s) for NAICS Code 236210 - Industrial Building Construction is: 91584 - Contractors - Subcontracted Work - In Connection With Construction, Reconstruction, Repair or Erection Of Buildings - For Industrial Use. 23815 - Glass and Glazing Contractors. 23839 - Other Building Finishing Contractors. 23819 - Other Foundation, Structure, and Building Exterior Contractors. NAICS 236100 - Residential Building Construction; NAICS 236200 - Nonresidential Building Construction; Links to OEWS estimates for other industries. This industry comprises establishments primarily engaged in interior or exterior painting or interior wall covering. C-29 - Masonry Contractor. This U. NAICS. Examples: Architecture block concrete: e. Extended NAICS Codes (8-digit) for Other Building Finishing Contractors. 7057. 238331 - Residential Flooring Contractors. additions, alterations and renovations of residential buildings, by operative builders. Green Goods and Services Industries by NAICS Code For Public Comment (Federal Register Notice): 3/15/2010. 236220-01 - Airport Designers. BBB Rating: A+. e. The related NAICS Code(s) for NCCI Workers Compensation Class Code 5645 - Carpentry - Construction of Residential Dwellings Not Exceeding Three Stories in. e. 237210 - Land Subdivision. Pay Online. NAICS. Maintenance Contractors. One-family house construction—general contractors. 5474. 60015 - Apartment Hotels - Less Than 4 Stories. com and their detailed description pages. NAICS Code Description. 236115. 0 : 236116 . The description for the SIC Code 1521 - Residential Remodelers in the Construction sector is: General Contractors Primarily Engaged In Construction (including New Work, Additions, Alterations, Remodeling, and Repair) Of Single - Family Houses. 23812 - Structural Steel and Precast Concrete Contractors. This industry comprises establishments commonly referred to as contractors primarily engaged in (1) cutting materials owned by others for apparel and accessories and/or (2) sewing materials owned by others for apparel and accessories. Residential Construction, Nec: 35,890: 152200: Residential construction, nec: 28,422: 15220000: Residential construction, nec: 28,422: 152201: Hotel/motel and multi-family. 5 ; 236220 . For some business types, there may be a similar industry to SIC Code 15-17 - Construction that is a better classification match. Mar 31, 2022Performing specialized construction work on houses and other residential buildings, generally on a subcontract basis: classified in NAICS Code - 238 - Specialty Trade. 2007 NAICS 2012 NAICS 2017 NAICS Building custom kitchen and bath cabinets (except freestanding) in a shop--are classified in Industry 337110, Wood Kitchen Cabinet and Countertop Manufacturing. 15420000 Nonresidential Construction, Nec. SOC Major Groups in. All Other Specialty Trade Contractors. NAICS Code 238160: NAICS Code for roofing contractors, shake and shingle roof installation, sheet metal roofing installation, skylight installation. NAICS 11 - Sector 11--Agriculture, Forestry, Fishing and Hunting NAICS 21 - Sector 21--Mining NAICS 22 - Sector 22--Utilities NAICS 23 - Sector 23--Construction NAICS 31 - Sector 31-33--Manufacturing NAICS 42 - Sector 42--Wholesale Trade NAICS 44 - Sector 44-45--Retail Trade NAICS 48 - Sector 48-49--Transportation and Warehousing NAICS 51 - Sector 51--Information NAICS 52 - Sector 52--Finance. Special trade contractors primarily engaged in plumbing, heating, air-conditioning, and similar work. 23811 - Poured Concrete Foundation and Structure Contractors. Construction equipment rental with an operator (except cranes) or preparing land for building construction: classified in NAICS Code - 238910 - Site Preparation Contractors. It includes lumber and other building materials dealers and paint, glass, and wallpaper stores selling to the general public, even if sales to construction contractors account for a larger proportion of total sales. It is part of the Building Finishing Contractors (2383) Industry Group, and part of the Construction (23) Sector. • Everything NAICS • NAICS Code Search • NAICS Code FAQ • NAICS to SIC Crosswalk • NAICS Code Appends • High Risk NAICS Code • SBA Size Standards. Industry Codes. for "restoration-contractor". Industry Examples of NAICS 238321. 238390-02 - Skylights. NAICS Code 2382 Description. 238390-01 - Cornices-Building. $16. NAICS 238320 - Painting and Wall Covering Contractors is part of: NAICS 238300 - Building Finishing Contractors. 175 - Carpentry and Floor Work. licensing. Machinery, construction (except cranes), rental with operator. Buy Business List - SIC 1521. 238290 Other Building Equipment Contractors $22. 5. 238130-03 - Patio Doors-Suppliers & Installers. 236220 - Commercial and Institutional Building Construction. 2012. 701 Washington Ave N STE 600, Minneapolis, MN 55401-2832. . This industry comprises establishments primarily responsible for the construction (including new work, additions, alterations, maintenance, and repairs) of commercial and institutional buildings and related structures, such as stadiums, grain elevators, and. Examples: Administration building construction - general contractors, Auditorium construction - general contractors, Bank See Companies for SIC 1542 Buy Business List - SIC 1542INDUSTRYEdge ® for General Contractors. NAICS Canada 2022 Version 1. NAICS Code Description. Wayne of Victoria said: "Paul, First rate job! You and. Construction/Building trade Construction of Buildings 236. About the Heavy and Civil Engineering Construction subsector. Repairing buildings, single-family-general contractors; Residential construction, single-family-general contractors; Rowhouse (single family) construction-general contractors;. Contracting In Carpentry, Inc. 236220-05 - Building Contractors. Chambers Bay believes in providing the. 2007. Building multifamily residential buildings for others as general contractors--are classified in U. Chimney sweep (i. NAICS for "contractor-painting". Nebraska Department of Labor. NAICS. SOC Major Groups in NAICS 238320 - Painting and Wall Covering Contractors: 00-0000 All Occupations; 11-0000 Management Occupations; 13-0000 Business and Financial. 238171 Residential siding contractors Y 2 2 Installation of energy-efficient or LEED-eligible siding; installing siding on LEED project. Discover the captivating works of Caroline Wright, an acclaimed author known for her spellbinding storytelling. . These establishments are known as retail in the trade. Audio equipment installation (except automotive) contractors: 238210: 238210: 238210: Building automation system installation contractors: 238210: 238210: 238210: Burglar alarm system, electric, installation only. This industry comprises establishments primarily engaged in masonry work, stone setting, brick laying, and other stone work. Electrical. Code Systems. Residential Building Construction. 0 . North American Industry Classification System (NAICS) Canada 2017 Version 1. North American Industry Classification System (NAICS) Canada 2017 Version 1. NAICS Code 238160 - Roofing Contractors is a final. $45. . The official NAICS code structure consists of a two-through-six-digit hierarchy of classifications with five levels of detail: The two-digit code indicates the economic sector. 238330-04 - Floor Armoring. Falsework construction: 238190: 238190: NAICS 236 - Construction of Buildings NAICS 237 - Heavy and Civil Engineering Construction NAICS 238 - Specialty Trade Contractors NAICS 233 - Building, Developing, and General Contracting NAICS 234 - Heavy Construction NAICS 235 - Special Trade Contractors NAICS Code Description. To obtain the Local Business Tax Receipt, please call 941. Earth moving, not connected with building construction-general;Included in this industry are industrial building general contractors, industrial building for-sale builders, industrial building designbuild firms, and industrial building construction management firms. General and special trade contractors primarily engaged in the construction of water and sewer mains, pipelines, and communications and power lines. The related NCCI Code (s) for 238110 - Poured Concrete Foundation and Structure Contractors is: 5506 - Street or Road Construction - Paving or Repaving & Drivers. 561210. The related NAICS Code (s) for NCCI Workers Compensation Class Code 5403 - Carpentry - NOC is: 238130 - Framing Contractors. 97651 - Metal Erection - Frame Structures Iron Work On Outside Of Buildings. 236210 Industrial building construction Y 2 2 LEED-certified buildings. Residential Remodelers : $45. Establishments primarily engaged in: Construction equipment rental without an operator-are classified in U. 213112. 0. NAICS Code 238311 Description. 510,294. NAICS Description. 2 1. This industry group includes nonresidential general contractors, nonresidential for-sale builders, nonresidential design-build firms, and nonresidential project construction management firms. General and special trade contractors primarily engaged in the construction of heavy projects, not elsewhere classified. 315210 - Cut and Sew Apparel Contractors. 42220 Construction of utility projects for electricity and telecommunications. . BLS aggregates output price changes captured at the assembly level each month to represent the change in output price for the total structure. Foundation, Structure, and Building Exterior Contractors : 168,585: 238110: Poured. 758. Classifications. That's why it's important to work with a contractor who has experience in this field and knows how to handle all the challenges that come with it. 561790 - Other Services to Buildings and Dwellings. 3154 SE Gran Park Way Stuart, Florida 34997. Deck construction, residential-type: 238350: 238350: 238350: Door and window frame construction: 238350: 238350:NAICS Code Description. Phraseology. More Details. The NAICS code 238310 is described as Drywall and Insulation Contractors. 23814 - Masonry Contractors. mil. Index Entries for 238350. for "contractor-painting". 238350-01 - Building Finish. Subcategories of NAICS Code 23 Hierarchy of NAICS Code 23 - Construction | SICCODE. 0 Furnishing and installing tile in all types of buildings. Establishments primarily engaged in building and installing cabinets at the job site are classified in this industry. 1531 - Operative Builders. Erecting the basic structure of buildings by pouring concrete--are classified in Industry 238110, Poured Concrete Foundation and Structure Contractors; Interior marble, granite, and slate work--are classified in Industry 238340, Tile and Terrazzo Contractors; and. Special trade contractors primarily engaged in the wrecking and demolition of buildings and other structures, except marine. Buy Business List - SIC 1542. Eric Smith, Builders renovated our bathroom, deck and installed hardwood floors downstairs. 508,034. This industry group includes nonresidential general contractors, nonresidential for-sale builders, nonresidential design-build firms, and nonresidential. 213112. General Contractor, Commercial Contractors. building Alterations, Single - Family - General Contractors. Top Businesses by Annual Sales for 237990 – Click for Complete Profiles: This industry comprises establishments primarily engaged in heavy and civil engineering construction projects (excluding highway, street, bridge, and distribution line construction). 23 - Construction. Examples: Aqueduct construction - general contractors, Cable laying construction. Apr 25, 2023NAICS Code 23611 – Residential Building Construction NAICS Code 2362 – Nonresidential Building Construction NAICS Code 236210 – Industrial Building Construction NAICS Code 236220 – Commercial and. Industry 213112, Support Activities for Oil and Gas Operations;. 238160 - Roofing Contractors Top Businesses by Annual Sales for 238160 – Click for Complete Profiles: Centimark Corporation:. e. Commitment to business diversity starts with its top leadership,. List Building. Responds Quickly. single-family housing, general contractors; Building, residential, addition, alteration and renovation; Construction management, residential remodeling;The NAICS code 238220 is described as Plumbing, Heating, and Air-Conditioning Contractors. 237110. 238221 - Residential Plumbing, Heating, and Air-Conditioning Contractors. 42910 Construction of water projects (for example for water supply) 42990Construction of other civil engineering projects n. 238130 - Framing Contractors Top Businesses by Annual Sales for 238130 – Click for Complete Profiles:. 12484 Heatherton Ct #53, San Diego, CA 92128. SIC Manual; Description for 7349: Building Cleaning and Maintenance Services, Not Elsewhere; SIC Search. $200. 238390-04 - Waterproofing Contractors. Send Message. These establishments may operate on their own account or under contract to other establishments. Fire and flood restoration of commercial and institutional buildings This description is a subset of 236220 COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION. 236117. Philip does excellent work and is very attentive to detail. Establishments known as Internet cafes, primarily engaged in offering limited Internet connectivity in. purchase a company record naics code drill-down sic code drill-down naics lookup help…Industry Analysis, Statistics, Trends, and Forecasts. Residential Contractor Endorsement Renewal Application #08-4204, Revised 01/03/2023;SIC Search. 87 - Engineering, Accounting, Research, Management, and Related Services. 541490. 3167 St Johns Bluff Rd S #205, Jacksonville, FL 32246. 531110. S. NAICS Codes. 23817 - Siding Contractors. 237990 other heavy and civil engineering construction $421,297 naics code dla troop support dollars obligatedMod/LCM reset. . within their NAICS code(s) and can assist businesses in determining marketing. Establishments primarily engaged in the wholesale distribution of roofing and siding (except wood) and insulation materials. 561210. 0 NAICS CODE Building Finishing Contractors SIZE CAP ($ MIL) 238310 Drywall and Insulation Contractors $ 15. 2007 NAICS 2012 NAICS 2017 NAICS Index Entries for 561621; 561621: 561621: 561621: Alarm system monitoring services: 561621: 561621: 561621: Alarm systems sales combined with installation, repair, or monitoring servicesAfter approval and prior to the issuance of your certificate of competency, you must obtain a Local Business Tax Receipt. g. Dun & Bradstreet gathers Construction business information from trusted sources to help you understand company performance, growth potential, and competitive pressures. Earth stations (except satellite telecommunication carriers) 517919. 1629 - Heavy Construction, Not Elsewhere Classified. 98640 - Renovating - Outside Surfaces Of Buildings. Our data analysts are standing by to assist in your list setup and target marketing. NAICS Code Description. C-34 - Pipeline Contractor. In-depth Industry Analysis: Explore Comprehensive Details on NAICS Code Extended Pages. 444190 - Other Building Material Dealers No Companies Listed in 444190. Marrow Construction. dampproofing, fireproofing, sandblasting, and steam cleaning of building exteriors. NAICS. The work performed may include new work,. Acoustical tile cleaning service; Building cleaning service, interior. 2361. Installing electrical controls for HVAC systems--are classified in Industry 238210, Electrical Contractors and Other Wiring Installation Contractors; Duct cleaning--are classified in Industry 561790, Other Services to Buildings and Dwellings; and; Installing septic tanks--are classified in Industry 238910, Site Preparation Contractors.