50 Best Windows Companies to Watch in 2026

The most prominent windows companies ranked by global prominence, funding activity, and market position. Showing the top 50 out of 160 companies tracked on Fsome.

160
Total Companies
$122.5M
Total Funding
$766K
Avg Funding
London
Top Location
# Company Location Employees Total Funding Last Round Last Funded
1
GigSky
GigSky is global mobile data service provider. The service was launched in 2015 …
Palo Alto 51 - 100 $24.9M Debt Financing 2016-07-06
2
Ubiquitous Energy
Ubiquitous Energy makes transparent solar technology for windows, electronics, a…
Redwood City 11 - 50 $75.0M Series B 2022-01-11
3
Drawboard
Drawboard creates easier and collaborative PDF software for architecture, engine…
Melbourne 11 - 50 $6.0M Series Unknown 2022-09-10
4
AvaloniaUI
Cross-platform UI frameworks.
Tallinn 1 - 10 $3.0M Corporate Round 2025-07-02
5
iGlass Technology
iGlass Technology has created “digital blinds” - durable film with digitally tu…
Irvine 11 - 50 $6.0M Seed 2017-12-20
6
Indow
Indow makes window inserts which press inside existing window frames to block dr…
Portland 51 - 100 $5.2M Convertible Note 2016-06-28
7
Vsion
Vsion is researching and developing a PDLC film with adjustable transparency/opa…
Daegu 1 - 10 $391K Seed 2023-07-31
8
Nueco Group
Nueco Group is an expert in the design, coordination, supply & installation of b…
Marylebone 11 - 50 $279K Debt Financing 2022-09-30
9
Stärke Group
Stärke is a design company that provides a complete line of residential, archite…
Auckland 51 - 100 $116K Grant 2021-09-01
10
Block42
Block42 uses artificial intelligence to develop easy to use and cost effective,…
Parramatta 1 - 10 $90K Seed 2020-09-01
11
Fentrend
Bringing Transparency & Efficiency to the market for Windows, Doors & Skylights.
Brooklyn 1 - 10 $405K Non Equity Assistance 2016-10-01
12
DAWGS
DAWGS is a manufacturer and provider of steel panels (Door and Window Guards) us…
Chicago, United States 101 - 250 Private Equity 2025-04-01
13
Midland Garage Door
Midland Garage Door is a manufacturing company that manufactures custom resident…
West Fargo, United States 251 - 500 Private Equity 2023-07-20
14
Quest Edtech
Quest Edtech provides online real-time platform to allow a pathway to the digita…
Samut Prakan 1 - 10 Seed 2020-02-28
15
NGS Films and Graphics
NGS Films and Graphics offers window film specification, engineering, and instal…
Atlanta 11 - 50 Private Equity 2021-12-22
16
Loqus Fleet
LOQUS is an ICT solutions group that provide its customers with products and ser…
San Gwann 101 - 250 $55K Grant 2016-01-08
17
Eagle Speak
Eagle Speak is an award winning technology company that develops cutting edge co…
Springfield 1 - 10 Seed 2017-12-13
18
Ethnomedia
Ethnomedia is an internet cinema that specializes in films, cartoons, and series…
Bishkek Pre Seed 2022-09-01
19
Nes4 You
Nes4 You is a photosensitive smart window company that manufactures smart window…
Daejeon Seed 2019-11-30
20
MAS
MAS manufactures and installs window, door, and facade systems made from alumini…
Sfax 1 - 10 Series Unknown 2016-09-22
21
NZ Fire Doors
NZ Fire Doors is a manufacturing company that offers doors, windows, painting, a…
Auckland 11 - 50 $47K Grant 2015-11-05