Inc. magazine revealed its annual ranking of America’s Fastest-Growing Private Companies and a number of door, window and glass companies made the list. The 2025 Inc. 5000 list ranked companies according to percentage revenue growth from 2021 to 2024. In order to be included, they must be United States-based, privately held, for-profit and independent (not subsidiaries or divisions of other companies).
According to Inc. officials, the median revenue growth among the top 500 companies was 1,552%. Median revenue growth for all companies listed came in at 169%.
“Our commitment to innovation and customer satisfaction is what sets us apart,” says Kevin Blansett, CEO of Quaker Windows & Doors, which was named to the list for the third time, reporting a three-year growth rate of 52%. “This recognition is a testament to the hard work and dedication of our entire team. Our growth and success are driven by the passion we bring to every project.”
Also making the list were:
GlassTemp, an Illinois-based provider of fabricated and tempered products, including flat, insulating and laminated glass, which made the list for the second time, reporting three-year growth of 144%;
JKR Windows, a Utah-based window dealer, making it for the third time, reporting three-year growth of 106%;
Mister Window, a Florida-based dealer of hurricane-rated doors and windows, making the list for the first time, reporting a three-year growth rate of 85%;
Porter Family Exteriors, a family-owned business in Pennsylvania that specializes in exterior products and services, making the list for the first time, with a three-year growth of 80%;
Ace Door & Window Company, a Jacksonville, Florida-based door and window dealer, in its first time on the list, reporting a three-year growth of 78%;
Privacy Glass Solutions, a Florida-based designer and manufacturer of privacy glass products for medical facilities, high-security environments and learning institutions, making the list for the second time with a 75% three-year growth; and
Window Nation, a Maryland-based dealer, making the list for the ninth time, with a three-year growth of 72%.
