The Global LOW-E Glass Market was valued at USD 23,620 Million in 2024 and is projected to reach USD 30,020 Million by 2032, growing at a Compound Annual Growth Rate (CAGR) of 3.6% during the forecast period (2025–2032). This robust growth is being driven by stringent global energy efficiency regulations, surging demand for green buildings, and the accelerating adoption of advanced coating technologies across residential, commercial, and automotive sectors.

As the construction industry intensifies its focus on sustainability and carbon footprint reduction, the spotlight is on the key manufacturers who are driving innovation in thermal insulation and solar control glazing. In this blog, we profile the Top 10 Companies in the LOW-E Glass Industry—a mix of global glass giants, technology innovators, and regional leaders shaping the future of energy-efficient fenestration.

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🔟 1. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: Planitherm™, Cool-Lite™, and EGLAS® LOW-E Glass Series

Saint-Gobain is a global leader in the construction materials sector and a pioneer in advanced glass solutions. Their extensive LOW-E glass portfolio caters to diverse climatic needs, offering products with superior thermal insulation and solar control properties. The company serves major architectural projects worldwide, with a strong focus on innovation through its dedicated R&D centers.

Sustainability Initiatives:

• Aiming for carbon neutrality by 2050

• Investing in high-performance triple-silver coating technologies

• Developing circular economy solutions for glass production and recycling

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9️⃣ 2. NSG Group (Pilkington)

Headquarters: Tokyo, Japan
Key Offering: Pilkington Optitherm™, Pilkington Suncool™ LOW-E Glass

NSG Group, operating under the renowned Pilkington brand, is one of the world’s largest glass manufacturers. The company offers a comprehensive range of LOW-E glasses, including hard-coat and soft-coat variants, for both residential and commercial applications. Their global manufacturing footprint ensures widespread availability and technical support.

Sustainability Initiatives:

• Committed to reducing CO2 emissions by 30% by 2030

• Pioneering ultra-thin double-silver and triple-silver coatings

• Expanding production capacity for high-performance vacuum insulated glass (VIG)

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8️⃣ 3. AGC Inc.

Headquarters: Tokyo, Japan
Key Offering: Stopray®, ENERGIOP™, and ANTHERMA™ LOW-E Glass

AGC Inc. is a leading global glass manufacturer known for its technological innovation in glass and ceramics. The company’s LOW-E glass products are engineered for exceptional energy performance, with advanced coatings that optimize light transmission and thermal insulation. AGC serves a diverse clientele, including automotive, aerospace, and construction sectors.

Sustainability Initiatives:

• Targeting 30% reduction in greenhouse gas emissions by 2030

• Developing next-generation LOW-E coatings with enhanced durability

• Investing in smart glass technologies integrating photovoltaic functions

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7️⃣ 4. Guardian Industries

Headquarters: Auburn Hills, Michigan, USA
Key Offering: Guardian Clarity™, Sunguard® LOW-E Glass

Guardian Industries is a major global manufacturer of float glass and fabricated glass products. The company’s LOW-E glass solutions are designed to meet the highest energy efficiency standards, with products tailored for specific climate zones. Guardian operates glass manufacturing facilities across the Americas, Europe, Asia, and the Middle East.

Sustainability Initiatives:

• Focus on manufacturing efficiency and waste reduction

• Developing solar control LOW-E glass for hot climates

• Expanding product lines for residential retrofit markets

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6️⃣ 5. PPG Industries

Headquarters: Pittsburgh, Pennsylvania, USA
Key Offering: Solarban®, Starphire® LOW-E Glass

PPG Industries is a leading paints, coatings, and specialty materials supplier with a strong presence in the glass industry. The company’s Solarban® series of solar control LOW-E glasses are among the most specified brands in commercial construction, known for their high light transmission and superior solar heat gain control.

Sustainability Initiatives:

• Committed to sustainable product innovation and manufacturing

• Investing in coating technologies that reduce material usage

• Developing LOW-E glass solutions for historic building preservation

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5️⃣ 6. Cardinal Glass Industries

Headquarters: Eden Prairie, Minnesota, USA
Key Offering: LoĒ³-366, LoĒ²-272, and LoĒ-180 Glass Series

Cardinal Glass Industries is North America’s largest independent manufacturer of residential insulated glass units. The company specializes in high-performance LOW-E glass for the window and door industry, with a focus on energy-efficient solutions for both new construction and replacement markets.

Sustainability Initiatives:

• Pioneering triple-silver LOW-E coatings for maximum performance

• Implementing energy-efficient manufacturing processes

• Focusing on products that help buildings achieve ENERGY STAR® certification

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4️⃣ 7. CSG Holding Co., Ltd.

Headquarters: Shenzhen, China
Key Offering: CSG ECO, CSG UVG LOW-E Glass

CSG Holding is China’s largest glass manufacturer and a significant global player in the industry. The company produces a wide range of LOW-E glass products, including online pyrolytic coatings and offline magnetron sputtered coatings. CSG serves both domestic Chinese markets and international clients across Asia, Europe, and North America.

Sustainability Initiatives:

• Investing in production technology upgrades for better efficiency

• Expanding capacity for high-performance LOW-E glass

• Developing products compliant with international green building standards

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3️⃣ 8. Xinyi Glass Holdings Limited

Headquarters: Hong Kong
Key Offering: Xinyi Energy-Saving, Xinyi Ultra-Clear LOW-E Glass

Xinyi Glass is one of the world’s largest comprehensive glass manufacturers, with a strong focus on float glass, automotive glass, and architectural glass. The company’s LOW-E glass products are known for their competitive pricing and reliable performance, making them popular in both residential and commercial construction markets.

Sustainability Initiatives:

• Expanding production facilities with energy-efficient technologies

• Developing cost-effective LOW-E solutions for emerging markets

• Increasing automation to improve manufacturing precision and reduce waste

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2️⃣ 9. Schott AG

Headquarters: Mainz, Germany
Key Offering: Schott PYRAN®, Schott RESOLAR® LOW-E Glass

Schott AG is a leading international technology group with expertise in specialty glass and glass-ceramics. The company’s LOW-E glass solutions are engineered for high-performance applications, including fire-resistant glazing, solar energy, and specialty architectural projects requiring exceptional thermal and optical properties.

Sustainability Initiatives:

• Focus on developing multifunctional glass solutions

• Investing in glass compositions with improved environmental performance

• Pioneering innovative coating technologies for extreme climate applications

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1️⃣ 10. Central Glass Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: C-U Glass, Super C-U Glass LOW-E Products

Central Glass is a major Japanese glass manufacturer with a strong presence in architectural and automotive glass markets. The company’s LOW-E glass products are designed for the specific climate conditions of the Asian market, balancing solar control and thermal insulation properties. Central Glass maintains a reputation for quality and technological innovation.

Sustainability Initiatives:

• Developing earthquake-resistant LOW-E glass for seismic zones

• Focusing on energy-efficient manufacturing processes

• Expanding product offerings for the growing Asian construction market

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LOW-E Glass Market – View in Detailed Research Report

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🌍 Outlook: The Future of LOW-E Glass Is Smarter and More Integrated

The LOW-E glass market is undergoing a significant transformation. While traditional coatings still dominate production volumes, the industry is investing heavily in smart glass technologies, advanced coating methods, and integrated building solutions.

📈 Key Trends Shaping the Market:

• Rapid adoption of triple-silver coatings in premium commercial projects

• Integration of photovoltaic functionality into LOW-E glass for Building Integrated Photovoltaics (BIPV)

• Development of dynamic glass technologies that adjust properties based on environmental conditions

• Growing emphasis on circular economy principles in glass manufacturing and recycling

Get Full Report Here:
LOW-E Glass Market – View in Detailed Research Report

The companies listed above are not only manufacturing energy-efficient glass—they’re driving the sustainable transformation of the global construction industry.