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Welcome to COMMBUYS

COMMBUYS is the only official procurement record system for the Commonwealth of Massachusetts' Executive Departments. COMMBUYS offers free internet-based access to all public procurement information posted here in order to promote transparency, increase competition, and achieve best value for Massachusetts taxpayers.

For more information on COMMBUYS please visit the COMMBUYS support pages.

Buyer Training Resources:
Buyer Training Overview
Job Aids for Buyers
Buyer Webcast Training

Vendor Training Resources:
Vendor Training Overview
Job Aids for Vendors
Vendor Webcast Training

Local Government Resources:
Posting a Bid Notice on COMMBUYS – Quick Reference Guide

Information about Statewide Contract Purchasing:
Statewide Contract Index | Contract User Guides | Procurement Schedule
(NEW!) Tradespersons Contract Index

UNSPSC Look-Up Tool for Buyers and Vendors:
UNSPSC Look-Up Tool
UNSPSC Look-Up Tool Instructions

RPA Transactions for FY18

Although COMMBUYS transactions for FY18 are closed, OSD recognizes and encourages the use of RPAs to record transactions after the fact to complete the purchasing record in COMMBUYS. To record FY18 RPA transactions, users must create the RPA document in COMMBUYS and then call the COMMBUYS Help Desk, to temporarily open the FY18 window, which will allow the transactions to be processed.

We appreciate all efforts to use the RPA functionality and thank you for your cooperation. Please direct any questions to the COMMBUYS Help Desk ( / 617-720-3197).

Please be advised we are experiencing intermittent phone outages on the COMMBUYS Helpline. If you cannot reach us by phone please email us at

Attention Vendors: 135 Newly posted bids – Week starting 8/20