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Dulles, Virginia (September 27, 2019) — Lerner Enterprises, one of Washington, D.C.’s largest private real estate developers, is pleased to announce that SOFIE, a West Coast-based company seeking to revolutionize diagnosis and therapy for disease, has leased 9,132 square feet on the seventh floor at 21000 Atlantic Boulevard. 21000 Atlantic Boulevard is located in the heart of Dulles, Virginia, at Dulles Town Center, Lerner's renowned master-planned development located in Loudoun County, one of the fastest-growing and wealthiest counties in the United States.

"We are very pleased to retain SOFIE as a tenant in 21000 Atlantic Boulevard. In addition to attracting new tenants including Sallie Mae, the building continues to convert existing sublease tenants to prime tenants, as is the case with SOFIE,” stated Mark D. Lerner, a principal of Lerner. “21000 Atlantic’s location, onsite amenity offering and walkable amenity base of Dulles Town Center continue to be in demand for cutting-edge companies like SOFIE, which is leading the way in the new technology of theranostics,” he added.

SOFIE was represented by Chris DiBitetto of Newmark Knight Frank. 21000 Atlantic Boulevard and Lerner were represented by Andy Klaff and Jeff Tarae of Newmark Knight Frank.


About 21000 Atlantic Boulevard

21000 Atlantic Boulevard is a seven-story, 184,000-square-foot Class ‘A’ office building located at Dulles Town Center. The building, which received the Award for Excellence in Architecture by the Virginia Foundation for Architecture, offers convenient access to Routes 28 and 7, the Dulles Toll Road and Washington Dulles International Airport. 21000 Atlantic Boulevard is part of the Dulles Town Center mixed-use master plan, which features Dulles Town Center mall with over 185 retailers and restaurants, as well as The Courtyard By Marriott at Dulles Town Center and several residential communities. The building is located in heart of Loudoun County, one of the fastest growing and wealthiest counties in the United States.


About Lerner

Founded by Theodore N. Lerner in 1952, Lerner Enterprises is a respected leader in Washington, D.C. area real estate development, investment and management. Headquartered in Rockville,
Maryland, Lerner is one of the largest and most diversified private real estate companies in the region, with expertise in all phases of commercial real estate – including planning, development, construction, leasing, asset management and property management. Lerner has developed and managed more than 20 million square feet of commercial, retail, hospitality and residential real estate throughout the Washington metropolitan area. The award-winning office portfolio features such iconic properties as Washington Square, 20 M Street SE, Two White Flint North, The Corporate Office Park at Dulles Town Center and The Corporate Office Centre at Tysons II, among many others.

The company is also a pioneer in sustainable development, with a notable LEED® Certified portfolio that includes Washington Square (LEED® Silver Certification), 20 M Street (LEED® Gold Certification), 2000 Tower Oaks Boulevard (Lerner’s Corporate Headquarters and the first LEED® Platinum office building in the entire Mid-Atlantic Region), and 1775 Tysons Boulevard (the first office building to achieve LEED® Platinum Certification in the Tysons market).

For more information, visit or follow Lerner on Twitter @LernerDC.



The early vision for molecular imaging was to revolutionize clinical diagnostics and therapeutics to better understand and treat the biology of disease. Today, SOFIE brings that vision to life by increasing the adoption and application diversity of theranostics by reducing the cost and complexity traditionally associated with the technology. With a full line of imaging and radiochemistry systems and a premier radiopharmacy network and contract manufacturing organization to supply novel agents for diagnosis and therapy, SOFIE is dedicated to improving patient health.

For more information, please visit or contact


About Newmark Knight Frank

Newmark Knight Frank ("NKF"), operated by Newmark Group, Inc. ("Newmark Group") (NASDAQ: NMRK), is one of the world's leading and most trusted commercial real estate advisory firms, offering a complete suite of services and products for both owners and occupiers. Together with London-based partner Knight Frank and independently-owned offices, NKF's 16,000 professionals operate from approximately 430 offices on six continents. NKF’s investor/owner services and products include investment sales, agency leasing, property management, valuation and advisory, diligence, underwriting, government-sponsored enterprise lending, loan servicing, debt and structured finance and loan sales. Occupier services and products include tenant representation, real estate management technology systems, workplace and occupancy strategy, global corporate services consulting, project management, lease administration and facilities management. For further information, visit

Media Contact:
Lisa B. Wood | 301.692.2396 |
Images available.

Leasing Contact:
Jeff Tarae | 703.918.0205 |

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