Washington DC Business Address

Business Address Service in Washington, DC

Establish your business with a prestigious 1629 K Street NW address. Professional mail handling, registered agent options, and same-day setup — just $32.50/month for your first 6 months, then $65/month. No contracts or deposits.

4.9 Google Rating Since 1981 500+ Members
1629 K Street NW
Same-Day Setup

More Than Just a Mailing Address

Every OSI business address comes with the infrastructure and support you need to operate professionally in DC.

Prestigious K Street Address

Use 1629 K Street NW, Suite 300 as your official business address — recognized by banks, the IRS, state agencies, and clients nationwide.

Professional Mail Handling

Trained staff receive, sort, and manage your mail daily. Choose pickup, forwarding, or digital scanning workflows.

Registered Agent Service

Add DC registered agent service for just $5/month — receive legal documents and service of process at your K Street address.

LLC & Business Formation Ready

Use your address immediately for DC business registration, EIN applications, bank accounts, and state filings.

Meeting Room Access

Book professional conference rooms and private offices by the hour when you need face-to-face client meetings.

Phone & Receptionist Add-Ons

Upgrade to include a DC phone number, live call answering, and personalized call routing for your business.

Built for Businesses That Need a DC Presence

Whether you’re launching a new LLC or expanding into the capital, a K Street address gives you instant credibility.

LLCs & New Businesses

Register your DC business with a real commercial address. Accepted by DCRA, banks, and the IRS for formation documents.

Remote & Hybrid Teams

Maintain a professional headquarters without a full-time lease. Your team works anywhere while clients see K Street.

Consultants & Freelancers

Separate your home address from your business. A K Street address elevates proposals, invoices, and client confidence.

Government Contractors

Meet SAM.gov and CBE address requirements with a verifiable DC commercial location. Certificate of Occupancy available.

Simple, Transparent Pricing

No deposits. No contracts. No hidden fees. Pick the plan that fits and upgrade anytime.

Starter Package

$99 /month
$49.50 /month

First 6 months — then $99/mo

  • K Street address with mail handling
  • DC phone number with voicemail to email
  • 2 prepaid office hours per month
  • Occupancy permit included
  • Meeting room and conference access
Choose Plan

Comprehensive Service

$165 /month
  • Live phone answering by receptionists
  • Mail collection and sorting
  • 16 prepaid conference/meeting hours
  • K Street address with lobby listing
  • Phone relay and voicemail to email
Choose Plan

Why 500+ Businesses Choose OSI

We’ve been providing business address services in Washington DC since 1981. Here’s what sets us apart.

45 Years in Business

Established in 1981, OSI is one of the longest-operating business address providers in Washington DC.

Same-Day Setup

Start using your new business address immediately. No waiting periods, no approval delays.

No Contracts or Deposits

Month-to-month terms with no upfront costs. Scale up, downgrade, or cancel anytime without penalties.

Frequently Asked Questions

Yes. Our 1629 K Street NW address is a real commercial location accepted by DCRA, the IRS, banks, and state agencies for business formation, EIN applications, and business license filings.
Same day. Once you complete the signup process, you can immediately begin using your K Street address on business cards, websites, filings, and correspondence.
No. All OSI plans are month-to-month with no contracts, no deposits, and no setup fees. You can upgrade, downgrade, or cancel at any time without penalty.
Our front desk team receives and sorts your mail daily. Depending on your plan, you can pick up in person, have mail forwarded to any address, or receive digital scans of your correspondence.
Yes. DC registered agent service is available as an add-on for just $5/month. We’ll accept service of process and legal documents on your behalf during business hours.
Yes. Our address meets SAM.gov registration requirements and DC CBE certification address criteria. We can also provide a Certificate of Occupancy upon request.
Yes. Conference rooms and private offices are available to book by the hour. Higher-tier plans include prepaid hours, or you can reserve rooms on demand at member rates.
A business address provides a commercial mailing location for registrations and correspondence. A virtual office adds phone services, live receptionist support, and prepaid office hours. OSI offers both — start with an address and upgrade anytime.

Get Your DC Business Address Today

50% off your first 6 months — starting at just $32.50/mo. No contracts, no deposits, no hidden fees. Join 500+ businesses on K Street.