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.
Washington DC Business Address · K Street
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. Family-owned since 1981.
Address activated
1629 K Street NW / Washington, DC
Claim your K Street address
Same-day setup on the K Street business address. Tell us where mail should forward and how you plan to use it.
What’s Included
More Than Just a Mailing Address
Every OSI business address comes with the infrastructure and support you need to operate professionally in DC.
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.
Who It’s For
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 the DLCP (formerly 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. Copy of OSI’s Certificate of Occupancy included at no charge.
Pricing
Simple, Transparent Pricing
No deposits. No contracts. No hidden fees. Pick the plan that fits and upgrade anytime.
Enhanced Mail Service
$65 /month
$32.50 /month
First 6 months — then $65/mo
- K Street business address included
- Daily mail sorting and filing
- Mail forwarded throughout the week
- Occupancy permit included
- Office use available at $18/hour
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
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
Why OSI
Why 1,500+ Active Members 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.
FAQ
Frequently Asked Questions
What you get and how it works
A business address gives you a commercial mailing location for registrations, filings, and correspondence — the thing banks, the IRS, and DC agencies want to see. A virtual office adds a DC phone number, live receptionist answering, and prepaid office hours on top of it. Most people start with the address at $65/month ($32.50 for your first six months) and upgrade when they need someone answering calls.
Signup is same-day, and you can put the address on business cards, your website, and correspondence right away. Before we can legally receive mail on your behalf, USPS requires a notarized Form 1583 and two forms of ID — a federal rule that applies to every mail-receiving service in the country, not an OSI hurdle. Most people clear it in a day or two.
Choose a plan, then complete and notarize USPS Form 1583 and send two forms of identification. Tell us whether you will collect mail here or have it forwarded ($5/month plus postage). No notary nearby, or you are overseas? We refer you to an online notary service and schedule a five-minute ID-verification video call. Once the form and IDs are in, your account is active.
[Your Company Name], 1629 K Street NW, Suite 300, Washington, DC 20006. Include the suite number and give it to every sender. There is no need for a "c/o" line. Most mail addressed to the building finds us even without the suite, but mail sent to a different suite number can bounce back to the sender.
Yes, and many members do not. Clients in other states and other countries use the K Street address as their Washington presence, running everything through digital mail scanning, forwarding, and the online member portal. If you are outside the US, the online notary route handles Form 1583 without a flight.
Each account holds up to four entities or trade names. The first two are included; the third and fourth are $5/month each, with a one-time $35 documentation fee per added entity. Beyond four you would open a second account. Useful if you run a holding company and an operating company, or a firm and a DBA.
Registrations, banking, and licensing
Yes. 1629 K Street NW is a real commercial office and OSI holds its own DC Certificate of Occupancy for its suites, which is what makes the address acceptable to the Department of Licensing and Consumer Protection (formerly DCRA) for LLC and corporation filings. Members routinely list it as their principal office address on formation documents.
Yes. Because this is a street address in a commercial building rather than a P.O. box, it is accepted on EIN applications and tax correspondence generally — the same reason it clears where box-style addresses get rejected.
Most banks accept it, and we can supply a lease agreement or a letter of authorization when a bank asks for verification. Send us the exact legal business name and title you want on the document and we prepare it; one lease is included with each account and additional leases are $35 each. Bank requirements vary more than people expect, so ask yours what it needs before your appointment.
Yes. Once you have signed up for mail service and submitted your notarized Form 1583, we provide a copy of OSI's own Certificate of Occupancy for our suites at 1629 K Street NW at no charge, for DC licensing, banking, and regulatory filings, with no registered agent service required. If an agency specifically demands a certificate issued in your business's name, that requires a DC Department of Buildings inspection; we provide the owner consent and host the inspection for a one-time $150 coordination fee.
Yes. DC registered agent service is $5/month per entity plus a one-time $25 setup fee, available with any active mail plan. You list OSI Management Inc. at 1629 K Street NW, Suite 300 as your agent with DLCP, and we help with the change filing. We accept service of process and legal documents during business hours, notify you the same day, and forward them according to your mail forwarding preference. Missing a service notice can cost you a case by default, which is the actual value of the line item. See the registered agent page.
For SAM.gov, yes: the address meets the physical-location requirement for registration, CAGE code assignment, and UEI, and SAM itself does not ask for a Certificate of Occupancy. DC's CBE program is stricter. It requires a principal office physically in the District, so a mail-only plan will not carry it; a dedicated desk from $340/month with a signed 12-month agreement supplies the workspace and lease documentation DSLBD looks for. We provide documentation and guidance; the filing remains yours. More for government contractors.
Yes. We provide the address along with a lease and a copy of our Certificate of Occupancy for credentialing and licensing applications, plus a letter on OSI letterhead confirming your business address and mail receipt. Credentialing bodies often want that letter specifically.
Website, letterhead, business cards, government filings, and your stated principal place of business: yes, in the full format with the suite number. Many members also use it on a Google Business Profile, but Google decides eligibility and verification for each business and no provider can guarantee approval. If Google asks for video verification, our staff can host the walk-through of the office and your reserved workspace for a one-time $75 fee once your account and Form 1583 are in place; you initiate the verification from your own Google account.
Yes. The Nonprofit Essentials plan bundles the K Street address, mail handling, and registered agent service at a nonprofit rate, month-to-month. See office space for nonprofits for details.
Mail, packages, and documents
Trained front-desk staff receive and sort mail daily. From there you choose: collect it here, have it forwarded by USPS twice weekly ($5/month plus postage at cost plus 25%), have it sent by courier (courier cost plus 25%, or use your own account), or have it scanned to you. Tell us your forwarding address and frequency and we keep it on file.
It is a $15/month add-on. Staff scan the front of incoming mail in real time and push the images to your email and the member portal. Open-and-scan of the contents is $2 per envelope, with the first six pages included and 10 cents a page after that, either on request or automatically if you switch that on. You get instant notifications, so a tax notice or a contract reaches you the day it lands regardless of where you are.
Yes, from all carriers, because this is a commercial office and not a P.O. box. Staff receive and securely store deliveries and notify you at the email on file on arrival. Collect during business hours or arrange forwarding.
Yes. Upload through the portal or email it, and staff print and postmark the same business day when received by 3:30 PM ET. Choose color or black-and-white, single or double-sided, copies, stapling or 3-hole punch, folded or flat in a 9x12. Pricing is a $3 base with the first five black-and-white pages included, then $0.15 per page black-and-white and $0.50 per page color, plus postage at cost plus 25%. USPS Certified Mail with electronic Return Receipt is available, and we can ship via FedEx with tracking.
Yes. Send us the names you want authorized and we add them to your account so we accept and hold their mail as well. Keys for mail pickup can be left in your mailbox.
There is a shred bin in the mailroom, and for scanned items you can request shredding directly from the scan notification email: one click, no trip downtown.
We hold mail for pickup for 30 days after termination, and anything arriving after that goes back to the sender. One important detail: notify your correspondents of your new address directly rather than filing a USPS change-of-address form. The Post Office classifies our address as a bulk-mail point and its forwarding system does not reliably route mail from it.
Privacy and security
That is one of the main reasons people buy it. Business registrations, registered agent listings, and SAM entity records are all publicly searchable. Putting K Street on those filings means vendors, litigants, and data brokers find a downtown office instead of your house. Some filings still require personal information we cannot shield, so check what your particular registration exposes.
We suggest members see visitors by appointment. If someone arrives when you are not here, whether we call you at that moment is your call: set the preference and we follow it. We can give an inquirer your office number; we do not hand out your personal numbers without your authorization.
Building security monitors daytime access and controls after-hours entry, with cameras covering the floor lobby, reception, and mail area. The suite door and mail area are staff-monitored and card-controlled, lockable mailboxes are available, meeting rooms have locking doors, and staff are trained in client security procedures.
No. We do not reveal confidential information about members or about their clients to general inquirers, or between members. Two defined exceptions: we disclose account information, including contact details for account principals, on request from a publicly recognized bar association or a properly identified law enforcement official.
No provider can control how a third-party website or directory classifies an address. In practice our members use the OSI address on websites, business cards, marketing materials, licensing, and business registrations without issue, and it is a suite in a commercial office building with staffed reception, not a mailbox store. We always represent your services accurately: while you are on a mail plan we will not describe you as having a full-time private office.
Cost, terms, and upgrades
Enhanced Mail, $65/month: K Street address, daily sorting, forwarding available, Certificate of Occupancy copy included, office use available hourly. Currently $32.50/month for your first six months. Starter Package, $99/month: adds a DC phone number with voicemail-to-email and two prepaid office hours; currently $49.50/month for your first six months. Phone and Mail, $115/month: live receptionist answering with call relay. Comprehensive, $165/month: sixteen prepaid hours. Add-ons: digital mail scanning $15/month, forwarding $5/month plus postage, registered agent $5/month plus a $25 setup fee, lobby directory listing $10/month, call forwarding to your own number $25/month. See plans and pricing.
Yes: 10% off for annual prepayment and 5% off for six months. We also credit $50 to your account for each client you refer to us.
No contract, no deposit, no setup fee on mail plans, month-to-month throughout. Upgrade, downgrade, or cancel without penalty; a plan change takes effect the following month. Mail-only service can end at the close of the current month; giving up a physical office or desk takes 30 days' notice. Cancel by email or phone — no certified letter required.
Credit and debit cards through the portal or by phone, PayPal, Venmo, Zelle, checks, cash, and money orders. We do not take CashApp, ACH, or wire transfers. Bills are due on the 1st, with a late fee on balances unpaid after the 20th.
Yes. Private offices are $18/hour for members, and conference rooms run from $18/hour for a small room (2 to 4 people) to $94/hour for the executive boardroom (12 to 30), each with Wi-Fi, a large display, and a whiteboard. Reserve by phone, email, or through the portal's scheduling tab; standing reservations are available if you meet clients on a recurring schedule.
You move up inside the same building at the same address, keeping your registrations and printed materials intact. Dedicated desks start at $279/month for business-hours access with mail service, $340/month for 24/7 access with meeting hours, and $500/month with live phone answering and digital mail. Furnished private offices start at $700/month interior and $1,250/month for a window office.
A P.O. box cannot take carrier deliveries and gets rejected for most business registrations. A mailbox store gives you a box number in a retail shop that agencies increasingly recognize and refuse. You get a suite number in a K Street office building with a Certificate of Occupancy, staffed reception, and rooms you can actually meet clients in. Farragut North is one block away and Farragut West two.
Get Your DC Business Address Today
50% off your first 6 months for new members — starting at just $32.50/mo. No contracts, no deposits, no hidden fees. Join 1500+ businesses on K Street.
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