The Purchasing office is open for appointments only, Monday through Friday. Call us at (503) 988-5111 for an appointment to visit with a specific Procurement Analyst.  If you wish to view Invitation to Bid (ITB) or Request for Proposals (RFP) files, please review the Bid & Proposal page (all tabs- Open/Closed/Awarded) or call for an appointment.

Review the information on this page to learn what you need to know to do business with Multnomah County, then visit our Bid and Proposal Opportunities page for access to current open solicitations.

How Multnomah County Purchases Goods & Services

The County purchases supplies, equipment and services (including public improvements and professional services) necessary to operate and support jails, health clinics, office buildings, libraries, animal services, elections and law enforcement. The following are procurement methods Multnomah County uses:

Purchases less than $10,000

Competitive solicitation is encouraged but not required for these purchases. However, County departments shall, where practicable, obtain informal quotes. Utilization of minority business, women-owned business, and emerging small business (COBID) is strongly encouraged in all Multnomah County contracting.  

How does the County's Procurement system work?

CHAPTER 279A, B AND C of the State of Oregon Statutes governs all public purchasing in the state.  Multnomah County Public Contract Review Board (PCRB) Administrative Rules (ARs) and county Administrative Procedures (APs) guide specific County purchases and exemptions.  These laws and rules are to assure that business conducted with vendors is fair, ethical and competitive. The following are methods and types of County purchases.

Bid & Proposal Opportunities

  • Opportunities to do business with the County.

Multco Marketplace Supplier Network

Public Works Programs

  • Requirements and Documents, including Prequalification Applications

COBID (Certification Office for Business Inclusion & Diversity)

 Sustainable Business Practices

  • Triple Bottom Line of Sustainability: Environment, Social Equity, & Economic Impacts.

IRS Form W-9

Public Contracting Review Board Rules

  • The rules that govern how the County does business

Supplier Code of Conduct  Supplier Code of Business Conduct - Multco (17.34 KB)

  • The County's expectations for its contractors


All of our Procurement files are provided in either Acrobat Reader® format (.pdf) or PKZIP® (.zip) format. If you do not have this software you may get the software you need at the following sites.

Americans with Disabilities Act (ADA) Compliance


In accordance with the requirements of Title II of the Americans with Disabilities Act of 1990, 28 CFR Part 35, Multnomah County will not discriminate against qualified individuals on the basis of disability in its services, programs, or activities.

Multnomah County will generally, upon request, provide appropriate assistance to support effective communication for qualified persons with disabilities so they can participate equally in County programs, services, and activities, including qualified sign language interpreters, documents in Braille, and other ways of making information and communications accessible to people who have speech, hearing, or vision impairments. This policy is in accordance with Multnomah County’s Language, Communication, and Cultural Access Policy.

For additional information please contact us: Phone: 503-988-5111 or email:

EEO Certification Requirement

Multnomah County's PCRB Rule 60-0040 requires that all contractors furnishing goods and services to the County in excess of $75,000 must be certified as an Equal Opportunity Employer. (This dollar amount may vary for other government agencies).  Contracts in excess of $75,000 are subject to the County’s Equal Employment Opportunity (EEO) requirements and will include vendor certification as indicated in the Sample Multnomah County Contract.  The County will not execute a contract over $75,000 with any contractor who fails to become certified.

Supplier Preference

As indicated in the specifications contained in our solicitations, Multnomah County shall prefer, all else being equal, goods produced in the State of Oregon. For more information please refer to project specifications.  The State of Oregon has also enacted a "reciprocal preference law." The law requires that, when determining the lowest responsible bidder, Multnomah County must add a percent increase to each nonresident bidder's price equal to the percent of preference given to local bidders in the nonresident bidder's home state.  The following link gives more information on the law and provides access to the most current information on states with preference laws: Reciprocal Preference Laws by State.

Electronic Submissions

All sourcing events (procurement) as they will be called in Multco Marketplace Supplier Network, MMP, will be managed electronically. All bids, proposals and other sourcing event activities will reside in MMP. We will no longer accept paper submissions unless otherwise stated in the sourcing event. We will provide assistance to any suppliers (vendors) who do not have access to technology. For additional information please contact us: Phone: 503-988-5111 or Email:

Multnomah County Purchasing

501 SE Hawthorne Blvd
Ste 125 - MAP
Portland OR 97214

Phone: 503.988.5111
Fax: 503.988.3252
Hours: 8:00am - 5:00 pm
Monday - Friday