Find the right NAICS & SIC code.
Build the right company list.
Look up NAICS and SIC codes, then use the same classification data to reach targeted companies and contacts.
NEW Website-Reviewed & Enriched lists go beyond NAICS and SIC.
U.S. company records classified under NAICS 444110 in the SICCODE.com database.
Example for classification reference. No affiliation or endorsement implied.
Tell us who you want to reach.
We'll build your business list.
Describe your ideal prospects. Our team will identify the right NAICS/SIC scope, estimate available counts, and help keep your business or email list precisely targeted.
Not sure which approach fits? We'll recommend the best one.
NEW
Website-Reviewed & Enriched
Get the companies that best match your target, not everyone in the industry. Specialists review each company website to identify products, services, markets, and fit.
- Company-level website research
- Products and services identified
- Markets and specialties
- Fit review & prioritization
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Tell us who you want to reach
Describe the companies, products, services, or use case. You do not need a NAICS or SIC code to start.
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Get your free count and sample
We recommend the mix of classifications, company data, and website research that fits your target, then send a count and sample.
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Approve and receive your list
Review your count, sample, scope, and quote. Once approved, we'll complete the review and deliver your list.
Example: Commercial Plumbers
Your target is commercial plumbers, not every plumbing company.
Tell us that. We can use plumbing NAICS and SIC where they help, then review websites to keep commercial, industrial, municipal, emergency, drain-cleaning, and specialty shops, and leave out residential-only businesses where possible.
Is this included with every list?
A standard list uses industry codes and business filters. Website-Reviewed & Enriched is for when your target is more specific than a code: products, services, markets, and fit.
Why is it a custom service?
Every buyer has a different target. One customer may want commercial plumbers, while another may want residential repair companies, suppliers, contractors, or specialty service providers.
What does it improve?
Website-Reviewed & Enriched helps reduce noise. The goal is a cleaner list with more companies that match your ideal prospect profile and fewer records that only loosely fit your target.
Browse Industry Classification Directories
Explore NAICS, SIC, and related classification systems, or get help identifying the right industries for a targeted business list.
NAICS codes · 20 sectors
31-33
Manufacturing
44-45
Retail Trade
48-49
Transportation and Warehousing
SIC codes · 10 divisions
01-09
Agriculture, Forestry, Fishing
10-14
Mining
15-17
Construction
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
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
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
Common Questions
Where can I browse NAICS and SIC codes?
You can browse the NAICS code lookup directory or the SIC code lookup directory, then use search to narrow by keyword, business activity, or code.
What is Website-Reviewed & Enriched?
Website-Reviewed & Enriched is a custom list service where specialists review company websites to confirm products, services, markets, and fit, so your file matches who you actually want to reach, not just everyone in a NAICS or SIC code. Get a free count and sample.
When should I use Website-Reviewed & Enriched instead of a standard business list?
Use Website-Reviewed & Enriched when your target is more specific than an industry code, for example commercial plumbers, not every plumbing company, or suppliers to restaurants, not restaurants themselves. For a standard business list built from NAICS, SIC, and firmographics, start with codes and filters.
Do I need a NAICS or SIC code to start?
No. Tell us who you want to reach. We use codes where they help, then website research to narrow the list to companies that fit your target.
Can SICCODE.com append NAICS or SIC codes to my database?
Yes. Code appending helps standardize customer, prospect, vendor, or business records for reporting and segmentation.
Who assigns NAICS and SIC codes?
There is no single universal registry that assigns one definitive NAICS or SIC code to every business for every use. Agencies, businesses, lenders, data providers, and procurement systems may classify a company differently depending on purpose and data source. SICCODE.com has helped organizations classify, verify, and apply industry codes since 1998.
Can I license SICCODE.com data or get a custom file?
Yes. Enterprise data projects can include business records, NAICS and SIC enrichment, firmographics, custom delivery, and recurring updates.
Governed NAICS & SIC Classification Reference
Maintained classification documentation, research tools, and standards-aligned guidance since 1998.
Establishment-level classification
Every U.S. business can be classified using NAICS and SIC based on its primary business activity. These standardized industry frameworks support research, analysis, segmentation, reporting, and business applications.
Applied data services
Business intelligence services built on the same governed classification framework support segmentation, outreach, and analytics while remaining anchored to standardized taxonomies.
Standards and governance
NAICS and SIC define primary business activity for analytics, compliance, and institutional research. SICCODE.com documents methodology, named reviewers, and citation-backed guidance.
Organizations Using SICCODE.com Classification Standards
Classification frameworks and reference data support industry classification, research, and reporting across government, academic, and enterprise environments.
What Clients Say
“We needed information on certain businesses in a market with addresses and phone numbers. The SICCODE Team is able to narrow down the area to what you need. They show you a sample first and help define the parameter to have an effective result. The experience is easy, fast, and I would recommend.”
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