Top Commercial Glazing Companies and Manufactures

Introduction

The commercial glazing market, integral to modern architecture, involves the design, production, and installation of glass systems for non-residential buildings like offices, retail, and hotels. The global commercial glazing market is valued at $36.8 billion in 2024, estimated to reach approximately $38.7 billion in 2025, and is projected to grow at a CAGR of 5.6% to reach around $63.2 billion by 2034, driven by demand for energy-efficient and sustainable glazing solutions. Key drivers include stringent energy regulations, green building standards like LEED, and innovations in low-emissivity (low-E) and smart glazing. Challenges such as supply chain issues and labor shortages persist, but opportunities arise from smart city initiatives and retrofitting projects.

Top Companies in the Commercial Glazing Market

Based on industry rankings and market data, here are the leading players in commercial glazing, covering manufacturers of glass products and contractors handling installation.

Leading Manufacturers

1. Saint-Gobain (France)
   A global giant, Saint-Gobain provides high-performance glass, including insulated glazing units (IGUs) and fire-resistant glass. Their glazing segment contributes significantly to their €47.1 billion revenue in 2023.
2. AGC Inc. (Japan)
   AGC specializes in architectural glass with advanced coatings, reporting over ¥1 trillion ($6.5 billion) in glass segment sales in 2024, focusing on sustainable solutions.
3. NSG Group (Japan, as Pilkington)
   Known for float glass and solar control glazing, NSG’s architectural glass sales reached ¥300 billion ($2 billion) in 2024, emphasizing dynamic glazing.
4. Guardian Industries (USA)
   A major U.S. producer of coated and fabricated glass, Guardian supports commercial facades and is part of Koch Industries, with strong growth in 2024.
5. PPG Industries (USA)
   PPG’s architectural glass division offers solarban low-E glass, contributing to their $18.2 billion net sales in 2024, with coatings as a growth driver.

Leading Contractors/Glaziers

6. Harmon Inc. (USA)
   Ranked #1 in Glass Magazine’s Top 50 Glaziers, Harmon reported $349 million in 2023 sales, excelling in curtain wall systems for high-rises.
7. Enclos Corp. (USA)
   A leader in unitized curtain walls, Enclos had $284 million in 2023 sales, focusing on innovative facade solutions.
8. Permasteelisa North America (Italy/USA)
   Known for bespoke facades, Permasteelisa reported $253 million in 2023 sales, specializing in complex glazing designs.

Recent Developments (2024-2025)

Saint-Gobain: Vacuum Glazing and Sustainability

In October 2024, Saint-Gobain launched INSIO® vacuum glazing at glasstec 2024, featuring ECLAZ® LUMI coatings for superior insulation and light transmission, targeting commercial retrofits by mid-2025. Q1 2025 financials showed a 3.2% sales increase, with an expected operating margin above 11%. Projects include energy-efficient facades for Mexico’s housing initiatives and Egypt’s new administrative capital.

AGC Inc.: High-Performance Solutions

AGC emphasized low-carbon glass in December 2024, reducing building energy use by up to 40%. At CES 2024 and 2025, they showcased glass with integrated sensors for smart buildings. Their 2025 Integrated Report highlighted progress toward net-zero emissions by 2050, with expanded North American production to meet commercial demand.

NSG Group (Pilkington): Production Expansion

NSG started a U.S. solar glass production line with TCO technology in January 2025, enhancing commercial solar glazing. A new St Helens, UK, line opened in July 2025 to supply North America and Europe. At glasstec 2024, NSG displayed dynamic electrochromic glazing, with plans for resource-conserving products at BAU 2025.

Guardian Industries: Dynamic Glazing Innovations

In September 2024, Guardian partnered with Privacy Glass Solutions to commercialize Lyto™, a full-blackout dynamic glazing, launched at GlassBuild 2024. Their March 2025 Commercial Project Awards recognized glaziers using their coated glass in iconic U.S. projects. Guardian supports the U.S. glazing market’s growth to $12.3 billion by 2032.

PPG Industries: Coating Advancements

PPG showcased durable metal coatings for glazing at the AIA Conference 2025, enhancing facade aesthetics and weather resistance. Q2 2025 financials reported strong sales in industrial coatings, including low-VOC options for green buildings, aligning with the U.S. commercial windows market’s 5.6% CAGR.

Harmon Inc.: Leading Complex Projects

Harmon retained its #1 ranking in 2024, excelling in facades with dichroic fins and electrochromic glass. Key projects include Block 162 in Denver and 650 Main in Salt Lake City, leveraging natural light. They addressed labor shortages through talent recruitment in 2025, supporting the market’s growth to $10.12 billion by 2033.

Enclos Corp.: Innovative Facades

In December 2024, Enclos advanced multi-layer and dynamic glazing systems, improving insulation and tinting. Projects like the Seattle Convention Center Summit and Capital One Block A in 2024 showcased high-strength glazing. Enclos is aligned with the sector’s 3% CAGR in 2025.

Permasteelisa North America: Strategic Growth

Permasteelisa acquired Benson Industries’ assets in January 2025, boosting their facade engineering capabilities. They completed One Boston Wharf Road in 2024, an 18-storey commercial hub with advanced glazing, contributing to the Top 50’s sales growth.