The Summit on Open-Source Ecosystems (SOSE 2026) will take place on December 2–3, 2026, at Fuse at Mason Square, on George Mason University’s Arlington campus, just minutes from Washington, DC.
Fuse is a state-of-the-art innovation hub designed to bring together academia, industry, government, and the broader community. Located in Arlington’s Rosslyn-Ballston innovation corridor, the venue is easily accessible by public transportation and conveniently located near hotels, restaurants, and the region’s major airports.
Address: 3351 Fairfax Drive, Arlington, VA 22201
Getting to the Venue
By Metro
The closest Metro station is Virginia Square–GMU, served by the Orange and Silver Lines.
From the station, face Fairfax Drive, cross the street, and turn right. Continue past the FDIC building to reach Fuse at Mason Square, just a short walk from the station.
For routes, schedules, and fares, visit the Washington Metropolitan Area Transit Authority (WMATA).
From Washington Dulles International Airport (IAD)
- By Metro: Take the eastbound Silver Line directly from Dulles International Airport to Virginia Square–GMU (approximately 50 minutes).
- By Taxi or Rideshare: Approximately 30–45 minutes, depending on traffic.
From Ronald Reagan Washington National Airport (DCA)
- By Metro: Take the Blue Line toward Largo to Rosslyn, then transfer to the westbound Orange or Silver Line to Virginia Square–GMU (approximately 20–30 minutes).
- By Taxi or Rideshare: Approximately 10–20 minutes, depending on traffic.
From Washington Union Station (Amtrak)
- By Metro: Take the Red Line toward Shady Grove to Metro Center, then transfer to the westbound Orange or Silver Line to Virginia Square–GMU (approximately 25–35 minutes).
- By Taxi or Rideshare: Approximately 15–30 minutes, depending on traffic.
Travel times are approximate and may vary depending on traffic, service schedules, and waiting times.
Driving and Parking
Paid visitor parking is available at George Mason University’s Mason Square campus, including the Van Metre Hall parking garage at 3351 Fairfax Drive. Garage access is via Founders Way North.
Parking is subject to availability and posted rates. Attendees are encouraged to use public transportation when possible.
For current parking information, please visit the Mason Square Campus Access page.
Hotels and Accommodations
SOSE 2026 has arranged discounted room blocks at hotels in the Arlington area. Availability is limited, and each hotel has its own reservation deadline.
Please visit our Hotels page for participating hotels, rates, booking instructions, and reservation deadlines.
Questions?
For questions about the summit or local arrangements, please contact the SOSE 2026 organizing team at [email protected].