Newmark Arranges Lease for Vannevar Labs in Arlington’s Flagship Tech Hub, Fuse at Mason Square

June 26, 2025 9:00 AM

Newmark announces the company has arranged a 6,448-square-foot lease for Vannevar Labs at Fuse at Mason Square, a newly delivered Class A innovation property in Arlington, Virginia. Newmark Executive Managing Directors Andy Klaff and Steve Hoffeditz, along with Associate Debbie Cross, serve as exclusive leasing agents for the property on behalf of landlord Mason Innovation Partners LLC, an entity led by Edgemoor Infrastructure & Real Estate.

Fuse at Mason Square is a 345,000-square-foot, LEED Platinum, Net Zero Energy building delivered in late 2024 and serves as the centerpiece of Arlington’s innovation corridor. Anchored by George Mason University’s Institute for Digital Innovation, Fuse offers an immersive ecosystem of academic collaboration, tech commercialization and entrepreneurial resources. Key sectors include artificial intelligence, cyber, robotics, virtual reality, NextG and simulation technologies.

We request to remove - “Fuse at Mason Square offers a rare opportunity to establish a classified space in a secure, future-forward environment,” said [Name], Vice President at Vannevar Labs” portion.

“The building’s mission-aligned community, proximity to top talent at George Mason University, and potential for research partnerships made this location a clear strategic fit as we continue to scale.”

Founded in 2019, Vannevar Labs is a defense technology company building software in support of U.S. national security. The firm works across the U.S. military, intelligence community, and partner organizations to strengthen strategic capabilities in information operations, data analysis, and perception management.

Vannevar Labs joins a growing roster of tech-driven companies at Fuse, including JSI Telecom, CorvexAI, Cybastion Technology and Oasis Hill, among others. On-site amenities include specialized lab space, collaborative programming, curated events and Wood & Iron Gameday Restaurant and Bar, opening Fall 2025.

Located one block from the Virginia Square-GMU Metro station, Fuse at Mason Square offers direct access to Clarendon’s retail, dining and lifestyle amenities, alongside a year-round calendar of public events and technology activations. Fuse at Mason Square provides immediate access to leading-edge labs, collaboration zones and convening spaces, as well as highly activated and curated programs, day and night, for the building’s occupants, visitors and the wider community.

According to Newmark Research, Class A office space in Northern Virginia continues to see steady leasing interest amid a constrained development pipeline and rising tenant demand. The region recorded positive net absorption for a second consecutive quarter, with sublease availability declining to near pre-pandemic levels—signaling flight-to-quality demand and limited supply of move-in ready space.

Cushman & Wakefield’s Craig Estey represented the tenant.

About Newmark
Newmark Group, Inc. (Nasdaq: NMRK), together with its subsidiaries (“Newmark”), is a world leader in commercial real estate, seamlessly powering every phase of the property life cycle. Newmark’s comprehensive suite of services and products is uniquely tailored to each client, from owners to occupiers, investors to founders, and startups to blue-chip companies. Combining the platform’s global reach with market intelligence in both established and emerging property markets, Newmark provides superior service to clients across the industry spectrum. For the twelve months ended March 31, 2025, Newmark generated revenues of over $2.8 billion. As of March 31, 2025, Newmark and its business partners together operated from 165 offices with approximately 8,100 professionals across four continents. To learn more, visit nmrk.com or follow @newmark.

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