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Commodity Code Lookup

Photograph of Arch Rock on Mackinac Island with Lake Huron in the background.
Department of Technology, Management and Budget

Commodity Code Lookup

NOTE: This page is for commodity code lookup only.

This tool is for the search and review of commodity codes and is for reference purposes only. Vendors must add commodity codes to their account via the SIGMA VSS system.


About Commodity Codes

Commodity codes are a numerical classification system that correlate to various goods and services. When vendors register to do business with the state, they add commodity codes to their account in SIGMA VSS that correspond to the goods and services they sell. The State of Michigan uses the National Institute of Governmental Purchasing (NIGP) code system. Commodity codes are sometimes referred to as "NIGP codes" for this reason.

The Importance of Commodity Codes

There are three primary reasons you should select commodity codes and keep them updated:

  • Bid Notifications. Including commodity codes and email addresses in your SIGMA VSS profile is the only way to be notified of state bid opportunities.
  • Additional Opportunities. Michigan schools and other local governments use SIGMA VSS. Identifying the correct commodity codes for your business ensures that the system will notify you of bids that match your codes.
  • Tells a Story. Commodity codes are the best and quickest way to communicate to the state what products and services your company can provide. This helps us understand our bidder pool and categorize opportunities appropriately.

NIGP versus NAICS Codes

Federal procurement systems such as use North American Industry Classification System (NAICS) codes. This is a similar but different system than NIGP codes which the State of Michigan uses. 

The State of Michigan does not use NAICS codes. The State of Michigan uses NIGP codes.

Commodity Code Lookup Questions

If you need assistance with adding commodity codes to your SIGMA VSS account, contact the State of Michigan (SIGMA VSS) Support Center:


If you have questions about the content of this page, please contact:

Commodity Code Lookup

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Top 25 Commodity Codes

The list below breaks out the 25 most commonly used commodity codes in the State of Michigan based on total spend. The data used to comprise this list currently spans state FY 22 and FY 23 (October 1, 2021 through September 31, 2023).

Vendors that do the kind of work detailed below should ensure that these codes are a part of their SIGMA VSS profile.

Commodity Code Commodity Description
90921 Building Construction, Industrial (Warehouse, etc.)
94846 Hospital Services, Inpatient and Outpatient
9IM13 Systems, General Software General Software Maintenance
91831 Construction Consulting
90735 Designing Services
91871 IT Consulting
91504 Advertising, Outdoor Billboard, etc.
91829 Computer Software Consulting
92002 Access Services, Data
94855 Medical and Laboratory Services (Non-Physician)
97514 Automobiles and Other Passenger Vehicles (Including Emergency)
95327 Claims Processing Services
95363 Life Insurance
95243 Family and Social Services (Including Shopping and Buying Services)
91573 Public Information Services (Incl. Press Releases)
90607 Architect Services, Professional
94848 Health Care Services (Not Otherwise Classified)
9IM02 Systems, Benefits: Benefits Systems Maintenance
40513 Gas, Natural (Incl. Compressed Natural Gas (CNG))
96183 Utility Services, Electric
92420 Examination and Testing
9IM15 Systems, Health: Health Systems Maintenance
19340 Diagnostic Reagents and Tests (For Diseases, Pregnancy, etc.)
ITS02 Benefits Systems & Software