Find and compare U.S. SIC code candidates. Read the government’s industry scopes, check close alternatives and keep a source-backed shortlist.
Search the government’s industry titles and example activities. Read what each candidate covers, compare close alternatives and keep the source with your decision.
Keep up to three four-digit industry candidates. Source and version details travel with your export.
Open an industry result and choose “Keep this candidate” to start.
Official text, inspectable boundaries, local comparison. For a different version or system, start with the recipient’s instructions.
Source notes ↓Start with what the establishment actually does. A broad word such as “software” can describe several industries; the official scope helps separate them.
7371 Computer Programming Services covers programming on a contract or fee basis. 7372 Prepackaged Software covers the design, development and production of prepackaged software. The 7372 definition directs custom programming to 7371.
Compare the actual business activity rather than picking a code from the word “software.”
Read the official software boundary →0782 Lawn and Garden Services lists lawn care, mowing and related services. Its official description directs artificial turf installation to 1799 Special Trade Contractors, Not Elsewhere Classified.
A search should not treat an excluded activity as a positive lawn-care match. Keep the leading zero in 0782.
Read the official lawn-service boundary →The letter identifies a division in the reference. Two digits identify a major group, three an industry group and four a detailed industry. A form that asks for a code may specify a different level; read its instructions.
NAICS replaced SIC for U.S. federal statistical classification in 1997. It reorganized industries; a SIC code does not identify one universal current NAICS equivalent.
Find and compare 2022 U.S. NAICS candidates →Companies House uses a separate five-digit condensed SIC list. A UK code such as 01110 must not be shortened into the U.S. code 0111.
Use the official UK SIC list →The SEC publishes its own filing-code list, including codes such as 6770. That list and a company’s EDGAR assignment are separate from this general 1987 industry reference.
Check the SEC filing-code list →Standard Industrial Classification groups establishments by activity. This lookup uses the U.S. 1987 SIC reference presented by OSHA. Four-digit entries describe detailed industries; two- and three-digit groups provide broader context.
This tool searches industry definitions and example activities. For an assigned code, use the relevant registry or receiving organization; for SEC filers, start with the company’s EDGAR record and the SEC list.
No. An NEC entry belongs to a particular activity group. Read its scope and compare neighboring industries. An unmatched search is not a reason to automatically choose an NEC code or 9999.
9999 is the separate Nonclassifiable Establishments reference. The original OMB manual puts its branch in Division K; OSHA places that branch under J. It is kept separately here and is not an ordinary industry candidate for the shortlist.
Search and comparison run in this browser tab after loading a fixed reference file. Your activity words and shortlist are not sent to a search API, put in a URL or automatically saved. Download or copy the shortlist when you want to keep it.
Classification: U.S. SIC 1987. Text: an immutable OSHA HTML archive committed 5 August 2020, downloaded 5 October 2026. Actual page-capture time is unknown. Selected current official records were independently checked on 5 October 2026; this date does not mean every archived record was rechecked live.
The complete archived inventory reconciles to 1,004 classified industries plus the separate 9999 entry. Some official descriptions are absent or incomplete. Their original wording and status are retained in the detail, comparison and export.
Government-text attribution does not imply endorsement of BiznTools.
The original manual’s separate nonclassifiable branch is Division K. OSHA’s 9999 reference is preserved separately from normal industry candidates.