Kensington Sales Group
Vendor registration

How to register as a vendor in the District of Columbia.

Where to register, what you'll need, what it costs and what to do next to sell to the District of Columbia District agencies, checked against official District sources.

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

Key takeaways

  • The District of Columbia's central procurement office is Office of Contracting and Procurement (OCP), and vendors register through DIFS Supplier Portal (District Integrated Financial System, run by OCFO).
  • Registration fee: not stated on the official pages we reviewed.
  • Registering makes you visible to District buyers; it doesn't guarantee business.
  • Local governments, school districts and universities in the District of Columbia often have their own vendor systems.

Quick facts

Central procurement officeOffice of Contracting and Procurement (OCP)
Registration systemDIFS Supplier Portal (District Integrated Financial System, run by OCFO)
Where to registercfo.dc.gov
Registration feeNot stated on the official pages we reviewed
What you'll need
  • Register in the DIFS Supplier Portal to receive payment from the District
  • Multi-factor authentication
  • Several forms including a W-9 (new suppliers)
Bid notificationsCheck the registration site for notification options

How to register, step by step

  1. Gather your information. Have these ready: Register in the DIFS Supplier Portal to receive payment from the District; Multi-factor authentication; Several forms including a W-9 (new suppliers).
  2. Register in DIFS Supplier Portal (District Integrated Financial System, run by OCFO). Start at cfo.dc.gov. 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 the District of Columbia often run their own vendor registration and bid systems.

Good to know

The DIFS Supplier Portal replaces the DC Vendor Portal effective November 2, 2026 for registration, profile management and invoicing.

After you register

Registration is the entry ticket, not the sale. Most District purchases above small-dollar thresholds go through competitive bids or existing contracts, including cooperative contracts many agencies use. Watch the District'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 the District of Columbia, 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 the District of Columbia free?
The official pages we reviewed didn't state a registration fee. Check cfo.dc.gov for current terms.
Where do I register as a vendor with the District of Columbia?
Register through DIFS Supplier Portal (District Integrated Financial System, run by OCFO) at cfo.dc.gov. The central procurement office is Office of Contracting and Procurement (OCP).
Does registering guarantee District 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 District's thresholds.
Do local governments in the District of Columbia 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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