The Global Electrochromic (EC) Windows Market was valued at USD 3.1 Billion in 2023 and is projected to reach USD 7.8 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 14.2% during the forecast period (2024–2030). This robust growth is being driven by escalating demand for energy-efficient building solutions, stringent green building regulations worldwide, and the accelerating adoption of smart home and office automation technologies.

As the construction industry pivots decisively toward sustainability and occupant well-being, the focus sharpens on the innovative companies pioneering dynamic glass technology. In this blog, we profile the Top 10 Companies in the Electrochromic Windows Industry—a blend of established material scientists, visionary start-ups, and global glass giants who are literally reshaping how we view and interact with our built environment.

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🔟 10. RavenBrick LLC

Headquarters: Denver, Colorado, USA
Key Offering: RavenWindow (Thermochromic & Photochromic Dynamic Glass)

RavenBrick specializes in passive dynamic glazing that responds automatically to sunlight and heat without electrical wiring. Their RavenWindow product darkens as temperatures rise, providing significant cooling load reduction for commercial and residential buildings. While not purely electrochromic, their thermochromic technology is a key competitor in the smart glass space, offering a simpler, self-powered alternative.

Innovation & Sustainability Initiatives:

• Focus on passive, zero-energy smart glass solutions.
• Substantial reductions in HVAC energy consumption demonstrated in field tests.
• Integration with building facades for holistic energy management.

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9️⃣ 9. Polytronix, Inc.

Headquarters: Richardson, Texas, USA
Key Offering: Polyvision® Privacy Glass (Polymer Dispersed Liquid Crystal – PDLC)

Polytronix is a leading manufacturer of Polymer Dispersed Liquid Crystal (PDLC) “privacy glass,” which switches from translucent to transparent with electricity. While PDLC operates differently from electrochromic glass (it scatters rather than absorbs light), it addresses similar markets for privacy and light control. The company serves the architectural, interior design, and specialty vehicle sectors globally.

Innovation & Sustainability Initiatives:

• Pioneering PDLC technology for over 30 years.
• Customizable solutions for partitions, doors, and windows.
• Contributing to occupant comfort and flexible space design.

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8️⃣ 8. Diamond Glass (Smartglass International)

Headquarters: Dublin, Ireland
Key Offering: Smartglass (PDLC, SPD, Electrochromic integration)

Diamond Glass, operating under Smartglass International, is a major European distributor and fabricator of dynamic glass technologies. They provide a full portfolio including PDLC, Suspended Particle Device (SPD), and electrochromic glass, acting as a crucial link between high-tech manufacturers and architectural glaziers across Europe.

Innovation & Sustainability Initiatives:

• Supply chain integration for multiple smart glass technologies.
• Focus on education and specification support for architects and contractors.
• Promoting the adoption of dynamic glazing in retrofits and new builds.

Download FREE Sample Report: Global Electrochromic (EC) Windows Market – View in Detailed Research Report

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7️⃣ 7. Pleotint LLC

Headquarters: West Olive, Michigan, USA
Key Offering: Suntuitive® Thermochromic Dynamic Glass

Pleotint is the creator of Suntuitive®, the world’s first and leading thermochromic dynamic glass. Like RavenBrick, its technology is passive, reacting to solar heat gain without sensors or wiring. This offers a maintenance-free solution for glare and solar heat control, making it a significant player in the broader dynamic glass market that competes with and complements electrochromic solutions.

Innovation & Sustainability Initiatives:

• Global licensing model with major glass manufacturers like Guardian Glass.
• Proven performance in reducing energy use and improving comfort.
• Continuous R&D to enhance switching performance and durability.

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6️⃣ 6. Scienstry, Inc.

Headquarters: Albuquerque, New Mexico, USA
Key Offering: E-Tint™ (Electrochromic Film and Glass)

Scienstry is a technology innovator focused on next-generation electrochromic materials. Their patented E-Tint™ technology is a solid-state, laminate-based EC system that can be applied to existing glass. This retrofit-friendly approach lowers the barrier to entry for building upgrades and positions Scienstry as a key player in the future of scalable EC solutions.

Innovation & Sustainability Initiatives:

• Development of fast-switching, durable electrochromic films.
• Focus on retrofit applications to decarbonize existing building stock.
• Partnerships with fabricators to bring film-based EC to market.

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5️⃣ 5. AGC Inc.

Headquarters: Tokyo, Japan
Key Offering: Eviron® / “Fineo” (Electrochromic Glass)

AGC (formerly Asahi Glass Co.) is one of the world’s largest glass manufacturers. It has developed its own electrochromic technology, commercialized under names like Eviron®. Leveraging its massive global production and distribution network, AGC integrates EC glass into high-performance insulating glass units (IGUs) for the Asian and global markets, bringing scale and reliability to the sector.

Innovation & Sustainability Initiatives:

• Integration of EC technology with other high-performance glass coatings.
• Commitment to carbon neutrality across its operations by 2050.
• Active participation in green building certification programs worldwide.

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4️⃣ 4. Gentex Corporation

Headquarters: Zeeland, Michigan, USA
Key Offering: HomeLink® Connect & Electrochromic Dimming Solutions

Gentex is globally renowned for its automatic-dimming rearview mirrors for automobiles, a massive application of electrochromic technology. It is strategically expanding this expertise into the architectural and aerospace markets. Their deep knowledge in reliable, large-volume EC device manufacturing gives them a unique advantage in cost reduction and quality control for broader applications.

Innovation & Sustainability Initiatives:

• Over 40 years of experience in commercializing electrochromic devices.
• Investment in new manufacturing capacity for architectural EC glass.
• Focus on integrating smart glass with home automation systems via HomeLink®.

Download FREE Sample Report: Global Electrochromic (EC) Windows Market – View in Detailed Research Report

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3️⃣ 3. Corning Incorporated

Headquarters: Corning, New York, USA
Key Offering: Corning® Fibrance® Light-Diffusing Fiber & Specialty Glass Substrates

While not a direct EC window manufacturer, Corning’s role is foundational. The company is a leading supplier of ultra-thin, durable glass substrates that are essential for many next-generation electrochromic devices, particularly those in all-solid-state designs. Their materials science expertise enables other companies to create thinner, faster, and more reliable EC products.

Innovation & Sustainability Initiatives:

• Pioneering thin, strong glass that enables advanced EC laminate structures.
• Collaborative R&D with EC technology developers.
• Commitment to sustainable manufacturing processes.

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2️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: SageGlass® (Electrochromic Windows)

Saint-Gobain, a global leader in light and sustainable construction, acquired SageGlass in 2012, becoming a powerhouse in the electrochromic window market. SageGlass is one of the most recognized brands in the industry, offering dynamic glass that tints electronically to control glare and heat gain. Saint-Gobain integrates this technology into its broader ecosystem of high-performance building materials.

Innovation & Sustainability Initiatives:

• Continuous improvement of SageGlass switching speed and coloration range.
• Deep integration with building management systems (BMS) for optimized performance.
• Aligned with Saint-Gobain’s overarching mission to achieve carbon neutrality.

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1️⃣ 1. View, Inc.

Headquarters: Milpitas, California, USA
Key Offering: View Smart Windows (Networked Electrochromic Glass)

View is arguably the most disruptive force in the electrochromic windows industry. The company doesn’t just sell smart glass; it sells a connected cloud-based platform. View Smart Windows automatically adjust in response to outdoor conditions and can be controlled via smartphone or building system, optimizing for energy savings, comfort, and views. Their large-scale installations in corporate offices, healthcare, and education make them the volume leader in networked EC glass.

Innovation & Sustainability Initiatives:

• Pioneering the IoT-enabled “Smart Building Cloud” for windows.
• Focus on health, wellness, and productivity benefits alongside energy savings.
• Public company status bringing greater visibility and investment to the smart glass sector.

Get Full Report Here: Global Electrochromic (EC) Windows Market – View in Detailed Research Report

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🌍 Outlook: The Future of Windows Is Dynamic, Connected, and Sustainable

The electrochromic windows market is transitioning from a niche, high-end product to a mainstream building component essential for achieving net-zero carbon goals. The convergence of materials science, IoT connectivity, and stringent building codes is creating unprecedented momentum.

📈 Key Trends Shaping the Market:

• Architectural Integration: EC glass is becoming a standard specification in green building designs for corporate HQs, universities, and healthcare facilities.
• Cost Reduction & Scaling: Increased manufacturing scale from leaders like View and Saint-Gobain is steadily driving down the price premium for EC windows.
• Retrofit Revolution: Technologies from companies like Scienstry (film-based) are making it feasible to upgrade existing buildings, a massive untapped market.
• Wellness as a Driver: Beyond energy, the value proposition is expanding to include occupant health through optimized daylight harvesting and glare reduction.

Get Full Report Here: Global Electrochromic (EC) Windows Market – View in Detailed Research Report

The companies profiled above are not just manufacturing windows—they are delivering intelligent building skins that actively manage energy, light, and human experience, proving that the future of construction is not static, but brilliantly adaptive.