Flex Plan — Virtual Mail
- K Street business mailing address
- Mail receipt and notification
- Use on business cards and letterhead
- No long-term contract required
Establish your government contracting presence on K Street — walking distance to GSA, OPM, the World Bank, and IMF. A prestigious DC address that builds credibility with contracting officers and positions your firm at the center of federal procurement.
K Street is the epicenter of government contracting in Washington DC. A business address at 1629 K Street NW places your firm within walking distance of the General Services Administration (GSA), the Office of Personnel Management (OPM), the World Bank, the International Monetary Fund (IMF), and dozens of other federal agencies and contracting offices.
When contracting officers review your bid, your address signals permanence and proximity. A K Street presence communicates that your firm is established, accessible, and committed to the DC market — not operating from a residential address or a P.O. box in the suburbs.
OSI Offices provides the infrastructure government contractors need without the overhead of a traditional office lease. Use your K Street address on SAM.gov registrations, CBE applications, CAGE code filings, and proposal cover pages. Meet contracting officers and teaming partners in professional conference rooms steps from the Metro.
With two Metro stations within a block — Farragut North (Red Line) and Farragut West (Blue/Orange/Silver Line) — your clients and partners can reach you easily from anywhere in the DC metropolitan area.
Every plan includes a prestigious K Street business address. Choose the level of service that matches your contracting requirements.
Our Dedicated Desk plan is specifically designed to meet the physical nexus requirements for DC government certifications and federal registrations.
Washington DC's Certified Business Enterprise (CBE) program requires businesses to demonstrate a physical presence in the District. A P.O. box or mail-only address does not satisfy this requirement. OSI's Dedicated Desk plan provides a real workspace with a lease agreement and Certificate of Occupancy at 1629 K Street NW, Suite 300 — documentation that meets the DC Department of Small and Local Business Development (DSLBD) requirements for CBE certification.
For federal contracting through SAM.gov, your business needs a verifiable physical address tied to your CAGE code and Unique Entity Identifier (UEI), formerly the DUNS number. OSI provides the address verification and supporting documentation needed for these registrations.
Whether you are applying for CBE certification, registering in SAM.gov, obtaining a CAGE code, or updating your UEI, OSI Offices provides the lease agreements, address verification letters, and Certificate of Occupancy documentation required to support your application. Our team has supported hundreds of government contractors through this process over 45 years in business.
Everything you need to run a professional government contracting operation from K Street.
Use 1629 K Street NW, Suite 300, Washington DC 20006 on SAM.gov, contract bids, business cards, and all official correspondence. A prestigious address that signals credibility to contracting officers.
Professional live receptionist answers calls in your company name during business hours. Never miss a call from a contracting officer, teaming partner, or subcontractor.
Incoming mail is received, scanned, and delivered to your secure client portal with AI-powered sorting and notification. Track government correspondence and contract documents in real time.
Reserve professional meeting rooms at 1629 K Street NW for client meetings, proposal reviews, and discussions with contracting officers. Walking distance to federal agencies.
Add registered agent service for just $5/month. OSI receives legal documents, tax notices, and government correspondence on behalf of your DC business entity.
All mail and legal documents are handled by trained professional staff with secure storage and digital delivery. Maintain confidentiality for sensitive government contract materials.
Common questions from government contractors about OSI's virtual office solutions in Washington DC.
Build a complete government contracting presence in Washington DC with OSI's full suite of office services.
Compliant dedicated desk solutions for CBE and SAM certifications. Physical nexus support for DC government contractors.
Learn MoreDC registered agent service for $5/month. Same-day document notification at 1629 K Street NW.
Learn MoreK Street business address, professional mail handling, live phone support, and meeting room access.
Learn MoreCompare all OSI plans side by side. Find the right package for your government contracting needs.
View PlansEstablish your firm at 1629 K Street NW — walking distance to federal agencies, CBE/SAM compliant plans available, no long-term contracts. Trusted by DC government contractors for over 45 years.
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