NAICS / SIC Code Service

Identify Companies by Industry for Better B2B Intelligence

NAICS / SIC Code Service

NAICSs and the older SIC Code provide a way to classify U.S., Mexico and Canada businesses into industry-specific categories. Send us your business customer file and our Service Bureau will code all your business records so you have better intelligence about your target markets.

  • Identify companies by business type to enhance marketing & sales efforts
  • Append NAICS & SIC codes to lists to hone in on customers most likely to respond to your products & services
  • Get to know businesses & prospects better with industry-based information in 20 sectors, 99 subsectors, 312 industry groups & more

How NAICS/SIC Coding Works

Our NAICS/SIC Coding process quickly codes your business records and identifies by business type. Send your file to us via secure online link.Upload file here.

How Melissa Direct NAICS/SIC Coding Service Works

What is NAICS?

NAICS, or the North American Industry Classification System, is used to classify and measure businesses in the United States, Canada and Mexico. It is often used in conjunction with or instead of the Standard Industrial Classification (SIC) system. Both are economy-based codes used to determine the type of industry into which a business can be categorized. NAICS replaced SIC codes for the most part, due to additional technology-based classification needs as market trends shifted and the Internet grew, but many companies find SIC codes more than meet their needs.

How to Read a NAICS Code

NAICS codes are 6-digits long and supply all the necessary information you need to define a business’s industry. By breaking down each part of the code, you can better understand your target markets.

The first two digits in NAICS provide the sector for the business, although there are three specific cases where more than one 2-digit code specifies sector: Manufacturing, Retail Trade, and Transportation and Warehousing, each comprise a code range.

NAICS codes are 6-digits long and suppl all the necessary information to define a business's industry. Example of NAICS codes for businesses in the Information sector.

NAICS Identifies 20 Main Sectors

  • Agriculture, Forestry, Fishing & Hunting
  • Mining, Quarrying, Oil & Gas Extraction
  • Utilities
  • Construction
  • Manufacturing
  • Wholesale Trade
  • Retail Trade
  • Transportation & Warehousing
  • Information
  • Finance & Insurance
  • Real Estate, Rental & Leasing
  • Professional, Scientific, & Technical Services
  • Management of Companies & Enterprises
  • Administrative, Support, Waste Management & Remediation Services
  • Educational Services
  • Health Care & Social Assistance
  • Arts, Entertainment, & Recreation
  • Accommodation & Food Services
  • Other Services (except Public Administration)
  • Public Administration

After identifying a main sector for the industry of a business, NAICS shows more in-depth information, including 99 subsectors, 312 industry groups, 713 industries and 1,066 U.S. industries. The third digit in a NAICS code is the subsector, the fourth digit is the industry group level, the fifth digit is the international industry level, and the sixth digit is reserved for U.S. designation.

What is SIC?

SIC stands for the Standard Industrial Classification (SIC) system. NAICS replaced SIC codes for the most part in 1997, due to additional technology-based classification needs as market trends shifted and the Internet grew, but many companies find SIC codes more than meet their needs.

How to Read a SIC Code

The first two digits of a SIC code identify the major industry group, such as Manufacturing or Transportation. The third digit identifies the industry group, such as Electronic Components under the Electronics category. Finally, the fourth digit identifies the industry. And if an industry cannot be located, the number “9” is used in the third or fourth digit position to show NEC or Not Elsewhere Classified industries.

SIC code charts are still used by many companies; The 4-digit codes identify major industry groups.

NAICS / SIC Code Pricing

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NAICS / SIC Code Service


NAICS / SIC Code Service

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All pricing is subject to change without notice and is in U.S. dollars. Please contact our nearest sales office for pricing.

Required & Returned Fields

Required Fields
Company Name, Address, City, State, and 5-digit ZIP Code/postal code

Returned Fields
NAICS Code or SIC Code