Directions coming from Reagan National Airport
Directions coming from Dulles Airport
Directions coming from Baltimore Airport
Coming from Northern Virginia
Coming from Southern Maryland
Metro Directions
Online Driving Directions

Some Important Notes

• OST is located on the 3rd floor in the KPMG building, at the corner of 20th and M streets.
• The main entrance is located on 20th Street.
• 3rd floor is a secure floor. Please remember to bring photo ID. Once inside, please go to the front-desk and provide meeting details. The guard will call upstairs and your contact will come down to receive and escort you to the 3rd floor.

Directions coming from Reagan National Airport

Start going towards Airport Exit on “A” ticketing/check-in arrivals. Continue to B-C Ticketing/Check in towards Airport Exit/Washington. Take George Washington Memorial Parkway North then take I-395 North/US-1 North exit towards Washington. Continue on US-1 North, Continue on 14th St NW. Bear RIGHT on Thomas Circle NW. Continue on M St NW. Arrive at 2001 M St .
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Directions coming from Dulles Airport

Start going towards the Airport Exit on Dulles Airport Access Rd. Continue on Saarinen Circle towards Terminal, continue on Copilot Way. Turn RIGHT on Cargo Drive (Cargo Drive becomes Aviation Drive. Turn LEFT to take Dulles Airport Access Road. Continue on VA-267 East, continue on I-66 East. Take E Street/(I-66 E) towards Kennedy Center/Whitehurst Freeway. Take Potomac River Freeway North towards Kennedy Center/Whitehurst Freeway. Take the L St NW exit towards Whitehurst Freeway, continue on L St NW. Take a LEFT on 20th St NW and then take another LEFT on M St NW.
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Directions coming from Baltimore Airport

Start going towards the Airport Exit on Metropolitan Blvd/Return to Terminal, Metropolitan Blvd/Return to Terminal becomes Return to Terminal. Continue on Departures towards Check-In/Daily Parking/Terminal/Ticketing, turn RIGHT on Airport Exit. Continue on Metropolitan Blvd. Continue on I-195 West. Take the Baltimore/Washington Pkwy/MD-295 South exit towards Washington, exit #2B. Take the US-50 West exit towards Washington. Continue on US-1-ALT South/US-50 West , continue on US-50 West to New York Ave NW, bear RIGHT on Mt Vernon PL NW, Continue on Massachusetts Ave NW, turn RIGHT on Thomas Circle NW, continue on M St NW.
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Coming from Northern Virginia

Take I-395/I-95 North towards Washington. Continue on US-1 North. Continue on 14th St NW Bear RIGHT on Thomas Circle NW. Continue on M St NW. Arrive at 2001 M St NW
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Coming from Southern Maryland

Take MD-4 North/Washington. Continue on Pennsylvania Ave SE, continue on John Philip Sousa BRG/Pennsylvania SE. Take I-295 North, take the I-395 North/D Street NW/New York Ave exit. Then take the Massachusetts Ave exit. Continue on 2nd Street NW. Turn LEFT on Massachusetts Ave, turn RIGHT on 7th St NW, turn LEFT on Mt Vernon PL NW, Continue on Massachusetts Ave NW. Turn RIGHT on Thomas Circle NW, Continue on M St NW, Arrive at 2001 M St NW.
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Metro Directions

Take the Red Line to Dupont Circle and take the Dupont Circle South exit. Walk south (straight ahead) for approximately 1 block and turn right on N St NW. Walk 1 block and turn left on 20th St NW. Walk approximately one block to the building entrance.
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Get Online Driving Directions

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