Kensington Sales Group
Vendor registration

How to register as a vendor in Massachusetts.

Where to register, what you'll need, what it costs and what to do next to sell to Massachusetts state agencies, checked against official state sources.

Updated November 1, 2026 · By Kensington Sales Group · 3-minute read

Key takeaways

  • Massachusetts's central procurement office is Executive Office for Administration and Finance, Operational Services Division (OSD), and vendors register through COMMBUYS.
  • Registration fee: Free.
  • Registering makes you visible to state buyers; it doesn't guarantee business.
  • Local governments, school districts and universities in Massachusetts often have their own vendor systems.

Quick facts

Central procurement officeExecutive Office for Administration and Finance, Operational Services Division (OSD)
Registration systemCOMMBUYS
Where to registercommbuys.com
Registration feeFree
What you'll need
  • Business legal name, address and email
  • Tax identification number
  • At least one UNSPSC code
  • A designated Seller Administrator
Bid notificationsRegistered vendors can receive bid notices, according to the state's site

How to register, step by step

  1. Gather your information. Have these ready: Business legal name, address and email; Tax identification number; At least one UNSPSC code; A designated Seller Administrator.
  2. Register in COMMBUYS. Start at commbuys.com. Use your exact legal name and taxpayer ID so your record matches tax and payment systems.
  3. Describe what you sell. If the system asks for commodity or service codes, choose them carefully: agencies and bid notices often use them to find vendors.
  4. Keep your profile current. Update contacts, codes and documents so notices and purchase orders reach the right people.
  5. Look beyond the state. Cities, counties, school districts, universities and utilities in Massachusetts often run their own vendor registration and bid systems.

Good to know

Up to three email addresses can receive bid notifications matching the vendor's UNSPSC codes.

After you register

Registration is the entry ticket, not the sale. Most state purchases above small-dollar thresholds go through competitive bids or existing contracts, including cooperative contracts many agencies use. Watch the state's bid notices, learn which contracts agencies buy from, and start conversations with the program staff who own the problems you solve before a solicitation is written. Our guides to government buying signals and cooperative purchasing explain how.

How KSG helps

Kensington Sales Group helps companies that sell to government turn registrations into meetings. Our SDRs research agencies in Massachusetts, call the people who own the need and book meetings for your sales team. See our state and local government work.

Sources

Checked November 1, 2026. Requirements change; confirm details on the official site before you register.

FAQ

Frequently asked questions

Is vendor registration in Massachusetts free?
Massachusetts's official site lists the fee as: Free.
Where do I register as a vendor with Massachusetts?
Register through COMMBUYS at commbuys.com. The central procurement office is Executive Office for Administration and Finance, Operational Services Division (OSD).
Does registering guarantee state business?
No. Registration makes you eligible and visible to buyers, and often gets you bid notices, but you still have to compete for contracts or be chosen for purchases under the state's thresholds.
Do local governments in Massachusetts use the same registration?
Not always. Many cities, counties, school districts and universities run their own vendor registration and bidding systems, so register with the local agencies you want to sell to as well.

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