NAICS Code 31-33 – Manufacturing
Official NAICS sector U.S. Census Bureau NAICS 2022
At a glance
Available companies
Contains
Get counts, pricing and a free sample
Official definition
The Manufacturing sector comprises establishments engaged in the mechanical, physical, or chemical transformation of materials, substances, or components into new products. The assembling of component parts of manufactured products is considered manufacturing, except in cases where the activity is appropriately classified in NAICS Code 23 - Construction. Establishments in the Manufacturing sector are often described as plants, factories, or mills and characteristically use power-driven machines and material handling equipment. However, establishments that transform materials or substances into new products by hand or in the worker's home and those engaged in selling to the general public products made on the same premises from which they are sold, such as bakeries, candy stores, and custom tailors, may also be included in this sector. Manufacturing establishments may process materials or may contract with other establishments to process their materials for them. Both types of establishments are included in manufacturing. Selected industries in the Manufacturing sector are comprised solely of establishments that process materials for other establishments on a contract or fee basis. Beyond these dedicated contract manufacturing industries, establishments that process materials for other establishments are generally classified in the Manufacturing industry of the processed materials. The materials, substances, or components transformed by manufacturing establishments are raw materials that are products of agriculture, forestry, fishing, mining, or quarrying as well as products of other manufacturing establishments. The materials used may be purchased directly from producers, obtained through customary trade channels, or secured without recourse to the market by transferring the product from one establishment to another, under the same ownership. The new product of a manufacturing establishment may be finished in the sense that it is ready for utilization or consumption, or it may be semi-finished to become an input for an establishment engaged in further manufacturing. For example, the product of the alumina refinery is the input used in the primary production of aluminum; primary aluminum is the input to an aluminum wire drawing plant; and aluminum wire is the input for a fabricated wire product manufacturing establishment. The subsectors in the Manufacturing sector generally reflect distinct production processes related to material inputs, production equipment, and employee skills. In the machinery area, where assembling is a key activity, parts and accessories for manufactured products are classified in the industry of the finished manufactured item when they are made for separate sale. For example, an attachment for a piece of metalworking machinery would be classified with metalworking machinery. However, component inputs from other manufacturing establishments are classified based on the production function of the component manufacturer. For example, electronic components are classified in NAICS Code 334 - Computer and Electronic Product Manufacturing, and stampings are classified in NAICS Code 332 - Fabricated Metal Product Manufacturing. Manufacturing establishments often perform one or more activities that are classified outside the Manufacturing sector of NAICS. For instance, almost all manufacturing has some captive research and development or administrative operations, such as accounting, payroll, or management. These captive services are treated the same as captive manufacturing activities. When the services are provided by separate establishments, they are classified in the NAICS sector where such services are primary, not in manufacturing. The boundaries of manufacturing and the other sectors of the classification system can be somewhat blurry. The establishments in the Manufacturing sector are engaged in the transformation of materials into new products. Their output is a new product. However, the definition of what constitutes a new product can be somewhat subjective. As clarification, the following activities are considered manufacturing in NAICS:
Milk bottling and pasteurizing; Water bottling and processing; Fresh fish packaging (oyster shucking, fish filleting); Apparel jobbing (assigning materials to contract factories or shops for fabrication or other contract operations) as well as contracting on materials owned by others; Printing and related activities; Ready-mix concrete production; Leather converting; Grinding lenses to prescription; Wood preserving; Electroplating, plating, metal heat treating, and polishing for the trade; Lapidary work for the trade; Fabricating signs and advertising displays; Rebuilding or remanufacturing machinery (i.e., automotive parts); Ship repair and renovation; Machine shops; Making manufactured homes (i.e., mobile homes) or prefabricated buildings, whether or not assembling/erecting at the customers' site; and Tire retreading.Conversely, there are activities that are sometimes considered manufacturing, but which for NAICS are classified in another sector (i.e., not classified as manufacturing). They include: 1. Logging, classified in NAICS Code 11 - Agriculture, Forestry, Fishing and Hunting, Forestry, Fishing and Hunting, is considered a harvesting operation; 2. Beneficiating ores and other minerals, classified in NAICS Code 21 - Mining, Quarrying, and Oil and Gas Extraction, Quarrying, and Oil and Gas Extraction, is considered part of the activity of mining; 3. Constructing structures, assembling prefabricated buildings, and fabricating at the construction site by contractors are classified in NAICS Code 23 - Construction; 4. Breaking bulk and reselling in smaller lots, including packaging, repackaging, or bottling products, such as liquors or chemicals; assembling and selling computers on a custom basis; sorting and reselling scrap; mixing and selling paints to customer order; and cutting metals to customer order for resale are classified in NAICS Code 42 - Wholesale Trade, or Sector 44-45, Retail Trade; and 5. Publishing and the combined activity of publishing and printing, classified in NAICS Code 51 - Information, transform information into a product for which the value to the consumer lies in the information content, not in the format in which it is distributed (i.e., the book or software compact disc).Source: U.S. Census Bureau, NAICS 2022
Need help identifying the right NAICS code for your business? Our classification team can review your activities and recommend the most appropriate classification. Get expert assistance →
Business Lists & Company Data for NAICS 31-33 - Manufacturing
Request a free sample to review the data before buying.
Showing: United States | All states
See which companies you could reach
Get a free sample of matching companies, with locations, contacts, and more.
✓ Free sample · ✓ Pay only if you order · ✓ No obligation
Short request form · takes about 30 seconds
What your sample looks like
Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Intel Corp Santa Clara, CA | ||||
| Micron Technology Inc Boise, ID | ||||
| Amgen Inc Newbury Park, CA |
-
Intel Corp · Santa Clara, CA
Contact Website Phone Employees -
Micron Technology Inc · Boise, ID
Contact Website Phone Employees
- Company
- Address
- Phone
- Website
- Contact name & title
- Business email
- Employees
- Sales volume
- SIC & NAICS
Includes: company, address, phone, website, contacts, emails, employees, sales volume, SIC & NAICS.
✓ Website-reviewed data included with U.S. lists · How we review →
Need several industries? Build a multi-industry list →
Already have a customer or prospect list?
What's included in a business list? Data fields, contacts, classifications, and delivery options.
A delivered list can include company name, address, phone, website, NAICS and SIC codes, employee size, and sales volume. Contact name, title, and business email are available on U.S. records when we have them. Field availability varies by record, and Canadian deliveries do not include business email addresses.
How are these company counts verified? Data sources, verification process, and count methodology.
Counts are SICCODE.com business locations available for purchase, not government census totals. Headquarters and branches are counted separately, and each location is classified by its primary SIC industry. Counts refresh when you change the country or state filter on this page.
Example companies
See how SICCODE.com evaluates businesses using documented activities and official definitions. Select a company to review its classification and the reasoning behind it.
272,227 verified U.S. companies
- LCI Industries Elkhart, IN View classification →
- General Motors Company Detroit, MI View classification →
- 3m Co Saint Paul, MN View classification →
- United States Steel Corp Pittsburgh, PA View classification →
- Conagra Brands Inc Chicago, IL View classification →
- A O Smith Corp Milwaukee, WI View classification →
- Brown Forman Corp Louisville, KY View classification →
- Procter And Gamble Company Cincinnati, OH View classification →
Key facts
- Code
- 31-33
- Classification level
- Official NAICS sector
- Official source
- U.S. Census Bureau · NAICS 2022
Industry statistics
Historical statistics
2017 Economic Census
2017 Economic Census
- Establishments (2017)
- 416,380
Why do company counts differ?
The U.S. Economic Census counts establishments with paid employees that operated during the census year, including businesses that may have since closed. Its industry classifications draw on business-reported information and government records. SICCODE.com's counts reflect verified business records currently available for purchase, with classifications based on documented business activities. Differences in reporting periods, database coverage, classification methods and verification criteria mean the totals may differ.
NAICS classification hierarchy
Five official Census levels, from sector to national industry, plus a commercial extended level.
-
Sector 31-33 Manufacturing
One example classification path is shown. Other branches may exist. Extended 8-digit codes are commercial segments, not official Census NAICS codes.
Subsectors
Explore the subsectors within this sector to find more specific NAICS classifications.
- 311 Food Manufacturing
- 312 Beverage and Tobacco Product Manufacturing
- 313 Textile Mills
- 314 Textile Product Mills
- 315 Apparel Manufacturing
- 316 Leather and Allied Product Manufacturing
- 321 Wood Product Manufacturing
- 322 Paper Manufacturing
- 323 Printing and Related Support Activities
- 324 Petroleum and Coal Products Manufacturing
- 325 Chemical Manufacturing
- 326 Plastics and Rubber Products Manufacturing
- 327 Nonmetallic Mineral Product Manufacturing
- 331 Primary Metal Manufacturing
- 332 Fabricated Metal Product Manufacturing
- 333 Machinery Manufacturing
- 334 Computer and Electronic Product Manufacturing
- 335 Electrical Equipment, Appliance, and Component Manufacturing
- 336 Transportation Equipment Manufacturing
- 337 Furniture and Related Product Manufacturing
- 339 Miscellaneous Manufacturing
Sources
-
Official classification source U.S. Census Bureau.
North American Industry Classification System (2022), NAICS 31-33. U.S. Census Bureau → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
SICCODE.com is an independent publisher. Official NAICS titles and definitions come from the U.S. Census Bureau. Commercial database counts are SICCODE.com records.
About this classification
This page combines the official U.S. Census Bureau NAICS definition with classification crosswalks and SICCODE.com commercial data. Classifications are reviewed regularly by the Classification Review Team.