V-Glass, an R&D firm focused on next-generation vacuum-insulated glass (VIG), announced it has raised $3 million in a seed funding round led by the Grantham Foundation for the Protection of the Environment and its affiliate, Neglected Climate Opportunities.
The funding will support the company’s transition from lab-scale production to a pilot manufacturing plant, marking a key step toward commercialization of its technology. The raise is complemented by a recent $1 million grant from the U.S. Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) under its GLASING program, which aims to accelerate the development of advanced super-insulating glass technologies.
V-Glass is developing a manufacturing platform designed to enable low-cost production of vacuum insulated glass with significantly improved thermal performance. The company states its VIG products can deliver two to three times the thermal efficiency of ENERGY STAR-rated windows, last twice as long, and be produced at comparable cost to existing solutions.
The company is targeting a major inefficiency in buildings, where windows account for a disproportionate share of heat loss. While high-efficiency insulated glass units such as triple-pane windows and first-generation VIG products have existed for years, their high cost has limited widespread adoption.
V-Glass aims to address this cost-performance gap with a solution that combines affordability, improved energy efficiency, and sustainability benefits. Its technology uses non-toxic materials and is fully recyclable, positioning it as an environmentally friendly alternative to traditional glass solutions.
The company also highlighted its long-standing collaboration with the Department of Energy and national laboratories, which has provided technical support and non-dilutive funding over the past 15 years. More recently, V-Glass secured its first contract with the U.S. Army Engineer Research and Development Center.
With the new funding, V-Glass plans to advance its automation and manufacturing processes and move closer to scaling production for broader market adoption.
KEY QUOTES:
“Windows are the weak thermal link in the built environment, comprising only 8% of building surface area while accounting for 45% of thermal energy loss. And while higher efficiency insulated glass units (IGUs), such as triple panes and 1st gen VIGs, have been commercially available for decades, they remain too expensive to achieve mass market penetration. Affordable, ultra-high efficiency V-Glass bridges that cost/performance paradigm, thereby generating compelling financial returns for building owners/homeowners.”
Mike Petit, Co-Founder & CEO, V-Glass
“We’ve reviewed many new building technologies and believe V-Glass’s innovative approach offers a major breakthrough for both thermal efficiency and affordability. Their technology not only delivers significant energy savings but sets a new environmental standard with 100% recyclability and non-toxic materials—clear advantages over existing IG solutions.”
Josh Agenbroad, Grantham Foundation
