Look up NAICS and SIC codes, confirm your classification, or build targeted company and contact lists.
Codes are based on what a business primarily does. This example shows the reviewed classification, why it fits, and the company records connected to that code.
U.S. company records classified under NAICS 444110 in the SICCODE.com database.
Example for classification reference. No affiliation or endorsement implied.
Describe your ideal prospects. Our team will identify the right NAICS/SIC scope and estimated business list counts before you order.
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Select the targeting or data service you need. SICCODE.com combines industry classification with list building, appending, enterprise data delivery, and custom work.
Targeted lists by industry, location, company size, and buyer profile, built on verified NAICS/SIC classification.
Add standardized NAICS and SIC codes to your customer, prospect, vendor, or business database.
Use business data for platforms, analytics, enrichment, AI systems, and enterprise workflows.
SICCODE.com data has supported research, analysis, list building, and classification projects across public-sector, academic, financial, consulting, insurance, and enterprise environments.
Custom list refinement
Industry codes get the list started. Custom refinement helps find the right companies inside the market, so your list has better matches and less noise.
A NAICS or SIC code helps us find the right general market, like choosing the right neighborhood.
We create the list using the industry scope, location, company size, revenue, employees, and contact filters you choose.
When you need a sharper list, we can add custom rules to help keep better-fit companies and reduce records that do not match your goal.
Start with the plumbing industry code. Then refine the list around the type of plumbing companies you actually want to reach.
You may want commercial, industrial, municipal, emergency-service, drain-cleaning, mechanical, or specialty-service companies, while excluding residential-only businesses where possible.
Find Companies That Match My MarketHow custom refinement works
Basic list targeting starts with industry codes and standard business filters. Custom refinement is available when your target is more specific than the code itself.
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.
It helps reduce noise. The goal is a cleaner list with more companies that look like your ideal prospects and fewer records that only loosely fit the industry.
Large-scale data products
Use NAICS, SIC, firmographics, and industry intelligence to power AI systems, CRMs, analytics, market research, compliance, and enterprise applications.
Classification & Data Governance
SICCODE.com connects free NAICS and SIC lookup tools with reviewed classification methodology, named reviewers, citation-backed research, and business data quality controls. The same classification foundation supports business lists, code appending, enterprise licensing, and custom data projects.
Choose your next step
Explore NAICS, SIC, and related classification systems, or start with expert help if you are building a business list.
31-33
Manufacturing
44-45
Retail Trade
48-49
Transportation and Warehousing
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
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.
Yes. We build targeted business and email lists by NAICS, SIC, geography, company size, executive role, and more.
Yes. Start with a free targeting preview to identify the industries most likely to buy what you sell. After the base list is built, custom refinement can help narrow the results around your exact target and reduce poor-fit records.
Yes. Code appending helps standardize customer, prospect, vendor, or business records for reporting and segmentation.
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.
SICCODE.com combines classification expertise, business-record coverage, review standards, and data delivery workflows.
Yes. Enterprise data projects can include business records, NAICS and SIC enrichment, firmographics, custom delivery, and recurring updates.