Prestigious Address
Use a recognized K Street location in Washington DC to strengthen trust with clients, vendors, and agencies.
Washington DC Virtual Office
A Prestigious K Street Business Presence Without Traditional Overhead
OSI combines address credibility, professional operations support, and on-demand workspace access so your business looks established and runs efficiently from day one.
1629 K Street NW
40+ Years Trusted
Why OSI
Designed for Serious Professionals
Everything in our virtual office model is optimized for business credibility, operational speed, and flexible growth.
Professional Mail Handling
Get structured mail receipt, optional scanning workflows, forwarding options, and reliable handling by trained staff.
Phone Support Options
Add a DC number, live answering, and call routing so your business phone experience matches your brand standards.
Meeting Room Access
Reserve offices and conference rooms when needed for client meetings, team sessions, or focused workdays.
Month-to-Month Flexibility
Scale up or down without long contracts, security deposits, or setup fees that slow down your operations.
Technology-Backed Workflow
Use digital systems to track account activity, communication workflows, and service requests in one place.
Popular Plans
Start with the Plan That Fits Today
Pick a plan that matches your current workflow and adjust as your business evolves.
Enhanced Mail Service
$65 /month
- K Street business address
- Mail receipt and handling
- Optional forwarding/scanning workflows
- Access to office amenities as needed
Comprehensive Service
$165 /month
- Mail handling plus live receptionist phone support
- 16 prepaid office/conference hours monthly
- Phone relay, lobby listing, and registered-agent options
- Built for established professional operations
Starter Package
$99 /month
- Balanced entry point for virtual office needs
- 2 prepaid office hours each month
- Phone and mail service foundations
- Upgrade path to comprehensive services
Support
More Than a Mailing Address
OSI gives you ongoing operational support from a local team that understands the needs of professionals working in DC.
Responsive Team
Work directly with experienced front desk and account support staff for daily business needs.
Extended Building Hours
Use workspace access windows that support early starts, late meetings, and flexible schedules.
Professional Community
Join a long-standing network of attorneys, consultants, startups, and independent practitioners.
Ready to Build Your DC Presence?
Get a high-credibility address, proven support systems, and flexible service plans designed for business momentum.