Fillable Printable Form Ct-Naics, Naics Codes For Principal Business Activity
Fillable Printable Form Ct-Naics, Naics Codes For Principal Business Activity
Form Ct-Naics, Naics Codes For Principal Business Activity
Select the code that best matches your primary
business activity. Listings are arranged by type
of industry.
Agriculture, Forestry, Fishing and
Hunting
Crop Production
111100 Oilseed and Grain Farming
111210 Vegetable and Melon Farming
(including potatoes & yams)
111300 Fruit and Tree Nut Farming
111400 Greenhouse, Nursery, and Floriculture
Production
111900 Other Crop Farming (including
tobacco, cotton, sugarcane, hay,
peanut, sugar beet & all other crop
farming)
Animal Production
112111 Beef Cattle Ranching and Farming
112112 Cattle Feedlots
112120 Dairy Cattle and Milk Production
112210 Hog and Pig Farming
112300 Poultry and Egg Production
112400 Sheep and Goat Farming
112510 Animal Aquaculture (including
shellfish & finfish farms & hatcheries)
112900 Other Animal Production
Forestry and Logging
113110 Timber Tract Operations
113210 Forest Nurseries and Gathering of
Forest Products
113310 Logging
Fishing, Hunting and Trapping
114110 Fishing
114210 Hunting and Trapping
Support Activities For Agriculture and
Forestry
115110 Support Activities For Crop
Production (including cotton ginning,
soil preparation, planting & cultivating)
115210 Support Activities For Animal
Production
115310 Support Activities For Forestry
Mining
211110 Oil and Gas Extraction
212110 Coal Mining
212200 Metal Ore Mining
212310 Stone Mining and Quarrying
212320 Sand, Gravel, Clay, and Ceramic and
Refractory Minerals Mining and
Quarrying
212390 Other Nonmetallic Mineral Mining and
Quarrying
213110 Support Activities For Mining
Utilities
221100 Electric Power Generation,
Transmission and Distribution
221210 Natural Gas Distribution
221300 Water, Sewage and Other Systems
Construction
Building, Developing, and General
Contracting
233110 Land Subdivision and Land
Development
233200 Residential Building Construction
233300 Nonresidential Building Construction
Heavy Construction
234100 Highway, Street, Bridge, and Tunnel
Construction
234900 Other Heavy Construction
Special Trade Contractors
235110 Plumbing, Heating, and Air-
Conditioning Contractors
235210 Painting and Wall Covering
Contractors
235310 Electrical Contractors
235400 Masonry, Drywall, Insulation, and Tile
Contractors
235500 Carpentry and Floor Contractors
235610 Roofing, Siding, and Sheet Metal
Contractors
235710 Concrete Contractors
235810 Water Well Drilling Contractors
235900 Other Special Trade Contractors
Manufacturing
Food Manufacturing
311110 Animal Food Manufacturing
311200 Grain and Oilseed Milling
311300 Sugar and Confectionery Product
Manufacturing
311400 Fruit and Vegetable Preserving and
Specialty Food Manufacturing
311500 Dairy Product Manufacturing
311610 Animal Slaughtering and Processing
311710 Seafood Product Preparation and
Packaging
311800 Bakeries and Tortilla Manufacturing
311900 Other Food Manufacturing (including
coffee, tea, flavorings & seasonings)
Beverage and Tobacco Product
Manufacturing
312110 Soft Drink and Ice Manufacturing
312120 Breweries
312130 Wineries
312140 Distilleries
312200 Tobacco Manufacturing
Textile Mills and Textile Product Mills
313000 Textile Mills
314000 Textile Product Mills
Apparel Manufacturing
315100 Apparel Knitting Mills
315210 Cut and Sew Apparel Contractors
315220 Men’s and Boys’ Cut and Sew
Apparel Manufacturing
315230 Women’s and Girls’ Cut and Sew
Apparel Manufacturing
315290 Other Cut and Sew Apparel
Manufacturing
315990 Apparel Accessories and Other
Apparel
Leather and Allied Product Manufacturing
316110 Leather and Hide Tanning and
Finishing
316210 Footwear Manufacturing (including
rubber & plastics)
316990 Other Leather and Allied Product
Manufacturing
Wood Product Manufacturing
321110 Sawmills and Wood Preservation
321210 Veneer, Plywood, and Engineered
Wood Product Manufacturing
321900 Other Wood Product Manufacturing
Paper Manufacturing
322100 Pulp, Paper, and Paperboard Mills
322200 Converted Paper Product
Manufacturing
Printing and Related Support Activities
323100 Printing and Related Support
Activities
Petroleum and Coal Products Manufacturing
324110 Petroleum Refineries (including
integrated)
324120 Asphalt Paving, Roofing, and
Saturated Materials Manufacturing
324190 Other Petroleum and Coal Products
Manufacturing
Chemical Manufacturing
325100 Basic Chemical Manufacturing
325200 Resin, Synthetic Rubber, and Artificial
and Synthetic Fibers and Filaments
Manufacturing
325300 Pesticide, Fertilizer, and Other
Agricultural Chemical Manufacturing
325410 Pharmaceutical and Medicine
Manufacturing
325500 Paint, Coating, and Adhesive
Manufacturing
325600 Soap, Cleaning Compound, and Toilet
Preparation Manufacturing
325900 Other Chemical Product and
Preparation Manufacturing
Plastics and Rubber Products Manufacturing
326100 Plastics Product Manufacturing
326200 Rubber Product Manufacturing
Nonmetallic Mineral Product Manufacturing
327100 Clay Product and Refractory
Manufacturing
327210 Glass and Glass Product
Manufacturing
327300 Cement and Concrete Product
Manufacturing
327400 Lime and Gypsum Product
Manufacturing
327900 Other Nonmetallic Mineral Product
Manufacturing
Primary Metal Manufacturing
331110 Iron and Steel Mills and Ferroalloy
Manufacturing
331200 Steel Product Manufacturing From
Purchased Steel
ST A TE OF CONNECTICUT
DEPARTMENT OF REVENUE SERVICES
25 Sigourney Street
Hartford CT 06106-5032
(New 7/00)
FORM CT-NAICS
NAICS Codes for Principal Business Activity
for Connecticut Tax Purposes
Page 1 of 4
331310 Alumina and Aluminum Production
and Processing
331400 Nonferrous Metal (except aluminum)
Production and Processing
331500 Foundries
Fabricated Metal Product Manufacturing
332110 Forging and Stamping
332210 Cutlery and Handtool Manufacturing
332300 Architectural and Structural Metals
Manufacturing
332400 Boiler, Tank, and Shipping Container
Manufacturing
332510 Hardware Manufacturing
332610 Spring and Wire Product
Manufacturing
332700 Machine Shops; Turned Product; and
Screw, Nut, and Bolt Manufacturing
332810 Coating, Engraving, Heat Treating,
and Allied Activities
332900 Other Fabricated Metal Product
Manufacturing
Machinery Manufacturing
333100 Agriculture, Construction, and Mining
Machinery Manufacturing
333200 Industrial Machinery Manufacturing
333310 Commercial and Service Industry
Machinery Manufacturing
333410 Ventilation, Heating, Air-Conditioning,
and Commercial Refrigeration
Equipment Manufacturing
333510 Metalworking Machinery
Manufacturing
333610 Engine, Turbine, and Power
Transmission Equipment
Manufacturing
333900 Other General Purpose Machinery
Manufacturing
Computer and Electronic Product
Manufacturing
334110 Computer and Peripheral Equipment
Manufacturing
334200 Communications Equipment
Manufacturing
334310 Audio and Video Equipment
Manufacturing
334410 Semiconductor and Other Electronic
Component Manufacturing
334500 Navigational, Measuring,
Electromedical, and Control
Instruments Manufacturing
334610 Manufacturing and Reproducing
Magnetic and Optical Media
Electrical Equipment, Appliance, and
Component Manufacturing
335100 Electric Lighting Equipment
Manufacturing
335200 Household Appliance Manufacturing
335310 Electrical Equipment Manufacturing
335900 Other Electrical Equipment and
Component Manufacturing
Transportation Equipment Manufacturing
336100 Motor Vehicle Manufacturing
336210 Motor Vehicle Body and Trailer
Manufacturing
336300 Motor Vehicle Parts Manufacturing
336410 Aerospace Product and Parts
Manufacturing
336510 Railroad Rolling Stock Manufacturing
336610 Ship and Boat Building
336990 Other Transportation Equipment
Manufacturing
Furniture and Related Product
Manufacturing
337000 Furniture and Related Product
Manufacturing
Miscellaneous Manufacturing
339110 Medical Equipment and Supplies
Manufacturing
339900 Other Miscellaneous Manufacturing
Wholesale Trade
Wholesale Trade, Durable Goods
421100 Motor Vehicle and Motor Vehicle Parts
and Supplies Wholesalers
421200 Furniture and Home Furnishing
Wholesalers
421300 Lumber and Other Construction
Materials Wholesalers
421400 Professional and Commercial
Equipment and Supplies Wholesalers
421500 Metal and Mineral (except petroleum)
Wholesalers
421600 Electrical Goods Wholesalers
421700 Hardware, and Plumbing and Heating
Equipment and Supplies Wholesalers
421800 Machinery, Equipment, and Supplies
Wholesalers
421910 Sporting and Recreational Goods and
Supplies Wholesalers
421920 Toy and Hobby Goods and Supplies
Wholesalers
421930 Recyclable Material Wholesalers
421940 Jewelry, Watch, Precious Stone, and
Precious Metal Wholesalers
421990 Other Miscellaneous Durable Goods
Wholesalers
Wholesale Trade, Nondurable Goods
422100 Paper and Paper Product
Wholesalers
422210 Drugs and Druggists’ Sundries
Wholesalers
422300 Apparel, Piece Goods, and Notions
Wholesalers
422400 Grocery and Related Product
Wholesalers
422500 Farm Product Raw Material
Wholesalers
422600 Chemical and Allied Products
Wholesalers
422700 Petroleum and Petroleum Products
Wholesalers
422800 Beer, Wine, and Distilled Alcoholic
Beverage Wholesalers
422910 Farm Supplies Wholesalers
422920 Book, Periodical, and Newspaper
Wholesalers
422930 Flower, Nursery Stock, and Florists’
Supplies Wholesalers
422940 Tobacco and Tobacco Product
Wholesalers
422950 Paint, Varnish, and Supplies
Wholesalers
422990 Other Miscellaneous Nondurable
Goods Wholesalers
Retail Trade
Motor Vehicle and Parts Dealers
441110 New Car Dealers
441120 Used Car Dealers
441210 Recreational Vehicle Dealers
441221 Motorcycle Dealers
441222 Boat Dealers
441229 All Other Motor Vehicle Dealers
441300 Automotive Parts, Accessories, and
Tire Stores
Furniture and Home Furnishings Stores
442110 Furniture Stores
442210 Floor Covering Stores
442291 Window Treatment Stores
442299 All Other Home Furnishings Stores
Electronics and Appliance Stores
443111 Household Appliance Stores
443112 Radio, Television, and Other
Electronics Stores
443120 Computer and Software Stores
443130 Camera and Photographic Supplies
Stores
Building Material and Garden Equipment and
Supplies Dealers
444110 Home Centers
444120 Paint and Wallpaper Stores
444130 Hardware Stores
444190 Other Building Material Dealers
444200 Lawn and Garden Equipment and
Supplies Stores
Food and Beverage Stores
445110 Supermarkets and Other Grocery
(except convenience) Stores
445120 Convenience Stores
445210 Meat Markets
445220 Fish and Seafood Markets
445230 Fruit and Vegetable Markets
445291 Baked Goods Stores
445292 Confectionery and Nut Stores
445299 All Other Specialty Food Stores
445310 Beer, Wine, and Liquor Stores
Health and Personal Care Stores
446110 Pharmacies and Drug Stores
446120 Cosmetics, Beauty Supplies, and
Perfume Stores
446130 Optical Goods Stores
446190 Other Health and Personal Care
Stores
Gasoline Stations
447100 Gasoline Stations (including
convenience stores with gas)
Clothing and Clothing Accessories Stores
448110 Men’s Clothing Stores
448120 Women’s Clothing Stores
448130 Children’s and Infants’ Clothing
Stores
448140 Family Clothing Stores
448150 Clothing Accessories Stores
448190 Other Clothing Stores
448210 Shoe Stores
448310 Jewelry Stores
448320 Luggage and Leather Goods Stores
Sporting Goods, Hobby, Book, and Music
Stores
451110 Sporting Goods Stores
451120 Hobby, Toy, and Game Stores
451130 Sewing, Needlework, and Piece
Goods Stores
451140 Musical Instrument and Supplies
Stores
451211 Book Stores
451212 News Dealers and Newsstands
451220 Prerecorded Tape, Compact Disc, and
Record Stores
General Merchandise Stores
452110 Department Stores
452900 Other General Merchandise Stores
Miscellaneous Store Retailers
453110 Florists
453210 Office Supplies and Stationery Stores
453220 Gift, Novelty, and Souvenir Stores
Form CT-NAICS (New 7/00)
Page 2 of 4
453310 Used Merchandise Stores
453910 Pet and Pet Supplies Stores
453920 Art Dealers
453930 Manufactured (Mobile) Home Dealers
453990 All Other Miscellaneous Store
Retailers (including tobacco, candle &
trophy shops)
Nonstore Retailers
454110 Electronic Shopping and Mail-Order
Houses
454210 Vending Machine Operators
454311 Heating Oil Dealers
454312 Liquefied Petroleum Gas (Bottled
Gas) Dealers
454319 Other Fuel Dealers
454390 Other Direct Selling Establishments
(including door-to-door retailing,
frozen food plan providers, party plan
merchandisers, & coffee-break
service providers)
Transportation and Warehousing
Air, Rail and Water Transportation
481000 Air Transportation
482110 Rail Transportation
483000 Water Transportation
Truck Transportation
484110 General Freight Trucking, Local
484120 General Freight Trucking, Long-
Distance
484200 Specialized Freight Trucking
Transit and Ground Passenger
Transportation
485110 Urban Transit Systems
485210 Interurban and Rural Bus
Transportation
485310 Taxi Service
485320 Limousine Service
485410 School and Employee Bus
Transportation
485510 Charter Bus Industry
485990 Other Transit and Ground Passenger
Transportation
Pipeline Transportation
486000 Pipeline Transportation
Scenic and Sightseeing Transportation
487000 Scenic and Sightseeing
Transportation
Support Activities For Transportation
488100 Support Activities For Air
Transportation
488210 Support Activities For Rail
Transportation
488300 Support Activities For Water
Transportation
488410 Motor Vehicle Towing
488490 Other Support Activities For Road
Transportation
488510 Freight Transportation Arrangement
488990 Other Support Activities For
Transportation
Couriers and Messengers
492110 Couriers
492210 Local Messengers and Local Delivery
Warehousing and Storage
493100 Warehousing and Storage (except
lessors of miniwarehouses & self-
storage units)
Information
Publishing Industries
511110 Newspaper Publishers
511120 Periodical Publishers
511130 Book Publishers
511140 Database and Directory Publishers
511190 Other Publishers
511210 Software Publishers
Motion Picture and Sound Recording
Industries
512100 Motion Picture and Video Industries
(except video rental)
512200 Sound Recording Industries
Broadcasting and Telecommunications
513100 Radio and Television Broadcasting
513200 Cable Networks and Program
Distribution
513300 Telecommunications (including
paging, cellular, satellite, & other
telecommunications)
Information Services and Data Processing
Services
514100 Information Services (including news
syndicates, libraries, & on-line
information services)
514210 Data Processing Services
Finance and Insurance
Depository Credit Intermediation
522110 Commercial Banking
522120 Savings Institutions
522130 Credit Unions
522190 Other Depository Credit
Intermediation
Nondepository Credit Intermediation
522210 Credit Card Issuing
522220 Sales Financing
522291 Consumer Lending
522292 Real Estate Credit (including
mortgage bankers & originators)
522293 International Trade Financing
522294 Secondary Market Financing
522298 All Other Nondepository Credit
Intermediation
Activities Related To Credit Intermediation
522300 Activities Related To Credit
Intermediation (including loan
brokers)
Securities, Commodity Contracts, and Other
Financial Investments and Related Activities
523110 Investment Banking and Securities
Dealing
523120 Securities Brokerage
523130 Commodity Contracts Dealing
523140 Commodity Contracts Brokerage
523210 Securities and Commodity Exchanges
523900 Other Financial Investment Activities
(including portfolio management &
investment advice)
Insurance Carriers and Related Activities
524140 Direct Life, Health, & Medical
Insurance & Reinsurance Carriers
524150 Direct Insurance & Reinsurance
(except life, health & medical) Carriers
524210 Insurance Agencies and Brokerages
524290 Other Insurance Related Activities
Funds, Trusts, and Other Financial
Vehicles
525100 Insurance and Employee Benefit
Funds
525910 Open-End Investment Funds
525920 Trusts, Estates, and Agency
Accounts
525930 Real Estate Investment Trusts
525990 Other Financial Vehicles
Real Estate and Rental and Leasing
Real Estate
531110 Lessors of Residential Buildings and
Dwellings
531120 Lessors of Nonresidential Buildings
(except miniwarehouses)
531130 Lessors of Miniwarehouses and Self-
Storage Units
531190 Lessors of Other Real Estate Property
531210 Offices of Real Estate Agents and
Brokers
531310 Real Estate Property Managers
531320 Offices of Real Estate Appraisers
531390 Other Activities Related To Real
Estate
Rental and Leasing Services
532100 Automotive Equipment Rental and
Leasing
532210 Consumer Electronics and Appliances
Rental
532220 Formal Wear and Costume Rental
532230 Video Tape and Disc Rental
532290 Other Consumer Goods Rental
532310 General Rental Centers
532400 Commercial and Industrial Machinery
and Equipment Rental and Leasing
Lessors of Nonfinancial Intangible Assets
(Except Copyrighted Works)
533110 Lessors of Nonfinancial Intangible
Assets (except copyrighted works)
Professional, Scientific, and Technical
Services
Legal Services
541110 Offices of Lawyers
541190 Other Legal Services
Accounting, Tax Preparation, Bookkeeping,
and Payroll Services
541211 Offices of Certified Public
Accountants
541213 Tax Preparation Services
541214 Payroll Services
541219 Other Accounting Services
Architectural, Engineering, and Related
Services
541310 Architectural Services
541320 Landscape Architectural Services
541330 Engineering Services
541340 Drafting Services
541350 Building Inspection Services
541360 Geophysical Surveying and Mapping
Services
541370 Surveying and Mapping (except
geophysical) Services
541380 Testing Laboratories
Specialized Design Services
541400 Specialized Design Services
(including interior, industrial, graphic,
& fashion design)
Form CT-NAICS (New 7/00)
Page 3 of 4
Computer Systems Design and Related
Services
541511 Custom Computer Programming
Services
541512 Computer Systems Design Services
541513 Computer Facilities Management
Services
541519 Other Computer Related Services
Other Professional, Scientific, and
Technical Services
541600 Management, Scientific, and
Technical Consulting Services
541700 Scientific Research and Development
Services
541800 Advertising and Related Services
541910 Marketing Research and Public
Opinion Polling
541920 Photographic Services
541930 Translation and Interpretation
Services
541940 Veterinary Services
541990 All Other Professional, Scientific, and
Technical Services
Management of Companies (Holding
Companies)
551111 Offices of Bank Holding Companies
551112 Offices of Other Holding Companies
Administrative and Support and Waste
Management and Remediation Services
Administrative and Support Services
561110 Office Administrative Services
561210 Facilities Support Services
561300 Employment Services
561410 Document Preparation Services
561420 Telephone Call Centers
561430 Business Service Centers (including
private mail centers & copy shops)
561440 Collection Agencies
561450 Credit Bureaus
561490 Other Business Support Services
(including repossession services,
court reporting, & stenotype services)
561500 Travel Arrangement and Reservation
Services
561600 Investigation and Security Services
561710 Exterminating and Pest Control
Services
561720 Janitorial Services
561730 Landscaping Services
561740 Carpet and Upholstery Cleaning
Services
561790 Other Services To Buildings and
Dwellings
561900 Other Support Services (including
packaging & labeling services, &
convention & trade show organizers)
Waste Management and Remediation
Services
562000 Waste Management and Remediation
Services
Educational Services
611000 Educational Services (including
schools, colleges, & universities)
Health Care and Social Assistance
Offices of Physicians and Dentists
621111 Offices of Physicians (except mental
health specialists)
621112 Offices of Physicians, Mental Health
Specialists
621210 Offices of Dentists
Offices of Other Health Practitioners
621310 Offices of Chiropractors
621320 Offices of Optometrists
621330 Offices of Mental Health Practitioners
(except physicians)
621340 Offices of Physical, Occupational and
Speech Therapists, and Audiologists
621391 Offices of Podiatrists
621399 Offices of All Other Miscellaneous
Health Practitioners
Outpatient Care Centers
621410 Family Planning Centers
621420 Outpatient Mental Health and
Substance Abuse Centers
621491 HMO Medical Centers
621492 Kidney Dialysis Centers
621493 Freestanding Ambulatory Surgical
and Emergency Centers
621498 All Other Outpatient Care Centers
Medical and Diagnostic Laboratories
621510 Medical and Diagnostic Laboratories
Home Health Care Services
621610 Home Health Care Services
Other Ambulatory Health Care Services
621900 Other Ambulatory Health Care
Services (including ambulance
services & blood & organ banks)
Hospitals
622000 Hospitals
Nursing and Residential Care Facilities
623000 Nursing and Residential Care
Facilities
Social Assistance
624100 Individual and Family Services
624200 Community Food and Housing, and
Emergency and Other Relief Services
624310 Vocational Rehabilitation Services
624410 Child Day Care Services
Arts, Entertainment, and Recreation
Performing Arts, Spectator Sports, and
Related Industries
711100 Performing Arts Companies
711210 Spectator Sports (including sports
clubs & racetracks)
711300 Promoters of Performing Arts, Sports,
and Similar Events
711410 Agents and Managers for Artists,
Athletes, Entertainers, and Other
Public Figures
711510 Independent Artists, Writers, and
Performers
Museums, Historical Sites, and Similar
Institutions
712100 Museums, Historical Sites, and
Similar Institutions
Amusement, Gambling, and Recreation
Industries
713100 Amusement Parks and Arcades
713200 Gambling Industries
713900 Other Amusement and Recreation
Industries (including golf courses,
skiing facilities, marinas, fitness
centers, & bowling centers)
Accommodation and Food Services
Accommodation
721110 Hotels (except casino hotels) and
Motels
721120 Casino Hotels
721191 Bed-and-Breakfast Inns
72119 9 All Other Traveler Accommodation
721210 RV (Recreational Vehicle) Parks and
Recreational Camps
721310 Rooming and Boarding Houses
Food Services and Drinking Places
722110 Full-Service Restaurants
722210 Limited-Service Eating Places
722300 Special Food Services (including food
service contractors & caterers)
722410 Drinking Places (alcoholic beverages)
Other Services
Repair and Maintenance
811110 Automotive Mechanical and Electrical
Repair and Maintenance
811120 Automotive Body, Paint, Interior, and
Glass Repair
811190 Other Automotive Repair and
Maintenance (including oil change &
lubrication shops & car washes)
811210 Electronic and Precision Equipment
Repair and Maintenance
811310 Commercial and Industrial Machinery
and Equipment (except automotive
and electronic) Repair and
Maintenance
811410 Home and Garden Equipment and
Appliance Repair and Maintenance
811420 Reupholstery and Furniture Repair
811430 Footwear and Leather Goods Repair
811490 Other Personal and Household Goods
Repair and Maintenance
Personal and Laundry Services
812111 Barber Shops
812112 Beauty Salons
812113 Nail Salons
812190 Other Personal Care Services
(including diet & weight reducing
centers)
812210 Funeral Homes and Funeral Services
812220 Cemeteries and Crematories
812310 Coin-Operated Laundries and
Drycleaners
812320 Drycleaning and Laundry Services
(except coin-operated)
812330 Linen and Uniform Supply
812910 Pet Care (except veterinary)
Services
812920 Photofinishing
812930 Parking Lots and Garages
812990 All Other Personal Services
Religious, Grantmaking, Civic, Professional,
and Similar Organizations
813000 Religious, Grantmaking, Civic,
Professional, and Similar
Organizations
Form CT-NAICS (New 7/00) Page 4 of 4
