SIC Codes Lookup - Standard Industrial Classification

Search or browse the Standard Industrial Classification (SIC) system. Verify the correct SIC code using definitions, scope boundaries, and industry hierarchy.

What is a SIC Code · How to Find My SIC Code ·
Instructions
Governed classification reference since 1998 · Full SIC coverage · Included/excluded boundary checks

What is the SIC Code Lookup / Directory?

The SIC Code Lookup / Directory on SICCODE.com offers a structured, research‑grade method for locating accurate 2‑ to 4‑digit SIC classifications. Users can search by keyword or known SIC code to surface potential matches, then validate the correct classification by reviewing industry definitions, scope notes, and the hierarchical placement within each major division. For guided exploration, begin with a major division and follow the hierarchy downward - from broad industry categories to the most specific 4‑digit SIC code.

🔹 Direct Lookup

Quickly identify SIC codes by entering a keyword or code number, then open the corresponding page to review definitions, scope boundaries, and classification notes.

🔹 Hierarchical Navigation

Start at the division level and move through major groups to reach the exact 4‑digit SIC code, following the original structure of the SIC system.

🔹 Standards‑Aligned Reference

Relies on authoritative SIC definitions and industry scope guidance to support accurate classification and reduce ambiguity.

🔹 Classification Governance Support

Applies primary‑activity principles and establishment‑level logic to help ensure consistent, defensible SIC code assignment across use cases.

Browse SIC Code List

Start with the sector that best matches the establishment's primary activity, then narrow by business model and scope to reach the correct 4-digit SIC code.

01-09
Agriculture, Forestry, Fishing
01 - Agricultural Production - Crops 02 - Agricultural Production - Livestock 07 - Agricultural Services 08 - Forestry 09 - Fishing, Hunting and Trapping
10-14
Mining
10 - Metal Mining 12 - Bituminous Coal and Lignite Mining 13 - Oil and Gas Extraction 14 - Mining and Quarrying of Nonmetallic Minerals, except Fuels
15-17
Construction
15 - Building Construction General Contractors and Operative Builders 16 - Heavy Construction other than Building Construction Contractors 17 - Construction Special Trade Contractors
20-39
Manufacturing
20 - Food and Kindred Products 21 - Tobacco Products 22 - Textile Mill Products 23 - Apparel and other Finished Products Made from Fabrics and Similar Materials 24 - Lumber and Wood Products, except Furniture 25 - Furniture and Fixtures 26 - Paper and Allied Products 27 - Printing, Publishing, and Allied Industries 28 - Chemicals and Allied Products 29 - Petroleum Refining and Related Industries 30 - Rubber and Miscellaneous Plastics Products 31 - Leather and Leather Products 32 - Stone, Clay, Glass, and Concrete Products 33 - Primary Metal Industries 34 - Fabricated Metal Products, except Machinery and Transportation Equipment 35 - Industrial and Commercial Machinery and Computer Equipment 36 - Electronic and other Electrical Equipment and Components, except Computer Equipment 37 - Transportation Equipment 38 - Measuring, Analyzing, and Controlling Instruments; Photographic, Medical and Optical Goods; Watches and Clocks 39 - Miscellaneous Manufacturing Industries
40-49
Transportation & Public Utilities
40 - Railroad Transportation 41 - Local and Suburban Transit and Interurban Highway Passenger Transportation 42 - Motor Freight Transportation and Warehousing 43 - United States Postal Service 44 - Water Transportation 45 - Transportation by Air 46 - Pipelines, except Natural Gas 47 - Transportation Services 48 - Communications 49 - Electric, Gas and Sanitary Services
50-51
Wholesale Trade
50 - Wholesale Trade-Durable Goods 51 - Wholesale Trade-Nondurable Goods
52-59
Retail Trade
52 - Building Materials, Hardware, Garden Supply, and Mobile Home Dealers 53 - General Merchandise Stores 54 - Food Stores 55 - Automotive Dealers and Gasoline Service Stations 56 - Apparel and Accessory Stores 57 - Home Furniture, Furnishings, and Equipment Stores 58 - Eating and Drinking Places 59 - Miscellaneous Retail
60-67
Finance, Insurance, Real Estate
60 - Depository Institutions 61 - Non-Depository Credit Institutions 62 - Security and Commodity Brokers, Dealers, Exchanges, and Services 63 - Insurance Carriers 64 - Insurance Agents, Brokers and Service 65 - Real Estate 67 - Holding and other Investment Offices
70-89
Services
70 - Hotels, Rooming Houses, Camps, and other Lodging Places 72 - Personal Services 73 - Business Services 75 - Automotive Repair, Services, and Parking 76 - Miscellaneous Repair Services 78 - Motion Pictures 79 - Amusement and Recreation Services 80 - Health Services 81 - Legal Services 82 - Educational Services 83 - Social Services 84 - Museums, Art Galleries, and Botanical and Zoological Gardens 86 - Membership Organizations 87 - Engineering, Accounting, Research, Management, and Related Services 88 - Private Households 89 - Miscellaneous Services
91-99
Public Administration
91 - Executive, Legislative, and General Government, except Finance 92 - Justice, Public Order, and Safety 93 - Public Finance, Taxation, and Monetary Policy 94 - Administration of Human Resource Programs 95 - Administration of Environmental Quality and Housing Programs 96 - Administration of Economic Programs 97 - National Security and International Affairs 99 - Nonclassifiable Establishments

Conversions / Cross-References

Frequently Asked Questions

  • How do I find a company's SIC code?

    Use the SIC code lookup by entering a keyword related to the business's primary activity or by browsing the SIC industry list. Open the SIC code page to confirm the definition and scope.

  • How many SIC codes can a company have?

    An establishment typically has one primary SIC code based on its main activity. Additional SIC codes may be recorded for secondary activities, depending on the use case.

  • Can I change my company's SIC code?

    SIC codes are commonly self-selected. If a code no longer reflects the business's primary activity, it should be updated to maintain accuracy and consistency.