Top 10 Companies in the Hermetic Glass-to-Metal Seals Industry (2025): Market Leaders Driving Industrial Sealing Solutions

In Business Insights
June 20, 2025

The Global Hermetic Glass-to-Metal Seals Market was valued at USD 678.9 million in 2024 and is projected to reach USD 912.3 million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.0% during the forecast period (2024-2030). This expansion is driven by rising demand from aerospace, medical, and energy sectors, along with technological advancements in sealing materials and manufacturing processes.

As industries require more reliable solutions for extreme environments, these precision components are becoming vital for mission-critical applications. Here we examine the Top 10 Companies in the Hermetic Glass-to-Metal Seals Industry—global leaders and specialist providers shaping the future of hermetic technologies.


🔟 1. Schott AG

Headquarters: Mainz, Germany
Key Offering: High-performance glass-to-metal seals for aerospace and medical devices

A technology leader with 135+ years in specialty glass, Schott develops hermetic seals that withstand extreme conditions for defense, semiconductor, and life sciences applications.

Technical Capabilities:

  • High-temperature resistant glass formulations

  • Custom sealing solutions for satellite components

  • Medical-grade hermetic packaging

Download FREE Sample Report: Global Hermetic Glass-to-Metal Seals Market – View in Detailed Research Report


9️⃣ 2. Emerson Fusite

Headquarters: St. Louis, Missouri, USA
Key Offering: Industrial hermetic seals and feedthroughs

Emerson’s Fusite division specializes in hermetic solutions for harsh environments, providing critical sealing technology for oil/gas, energy, and industrial applications.

Technical Capabilities:

  • High-pressure sealing up to 60,000 psi

  • Titanium and specialty alloy sealing


8️⃣ 3. Shinko Electric Industries

Headquarters: Nagano, Japan
Key Offering: Electronic component seals and packaging

A key supplier to Japan’s electronics industry, Shinko provides precision hermetic solutions for semiconductors, sensors, and microelectronic devices.

Technical Capabilities:

  • Miniature seals for MEMS devices

  • High-volume automated production


7️⃣ 4. Elan Technology

Headquarters: Newport, UK
Key Offering: Technical glass sealing solutions

Specializing in defense and scientific applications, Elan develops seals that maintain integrity in radiation environments and extreme thermal cycles.

Technical Capabilities:

  • X-ray and gamma radiation-resistant seals

  • Optical window integration

Download FREE Sample Report: Global Hermetic Glass-to-Metal Seals Market – View in Detailed Research Report


6️⃣ 5. Winchester Tekna

Headquarters: New Haven, Connecticut, USA
Key Offering: Military and aerospace sealing solutions

With decades of defense industry experience, Winchester provides mission-critical seals for weapons systems, satellites, and aviation electronics.

Technical Capabilities:

  • Hypersonic vehicle sealing technology

  • EMI/RFI shielding integration


5️⃣ 6. Electrovac

Headquarters: Klosterneuburg, Austria
Key Offering: Ultra-high vacuum seals

Electrovac’s expertise in vacuum technology serves particle accelerators, space applications, and scientific instrumentation requiring hermetic integrity.

Technical Capabilities:

  • 10-12 mbar leak rate seals

  • Cryogenic temperature performance


4️⃣ 7. Hermetic Solutions Group

Headquarters: Tampa, Florida, USA
Key Offering: Comprehensive hermetic packaging

This US specialist combines materials expertise with precision manufacturing for medical implants, aerospace, and energy applications.

Technical Capabilities:

  • Biocompatible implant seals

  • High-voltage isolation technology


3️⃣ 8. VAC-TRON

Headquarters: Painesville, Ohio, USA
Key Offering: Compact hermetic feedthroughs

Specializing in miniaturized solutions, VAC-TRON provides seals for sensors, transducers, and microelectronics in space-constrained applications.

Technical Capabilities:

  • Micro-miniature sealing technology

  • Corrosion-resistant marine solutions


2️⃣ 9. Amphenol Martec

Headquarters: Sainte-Julie, Quebec, Canada
Key Offering: High-power electrical seals

Amphenol’s Martec division focuses on hermetic solutions for electric vehicles, renewable energy systems, and power distribution.

Technical Capabilities:

  • 1000V+ isolation seals

  • EV battery management integration


1️⃣ 10. AMETEK

Headquarters: Berwyn, Pennsylvania, USA
Key Offering: Specialized hermetic components

AMETEK’s sealing solutions serve the most demanding applications in oilfield instrumentation, nuclear power, and aerospace electronics.

Technical Capabilities:

  • Downhole drilling equipment seals

  • Nuclear radiation-resistant materials

Get Full Report Here: Global Hermetic Glass-to-Metal Seals Market – View in Detailed Research Report


🌍 Market Outlook: Innovation Driving Future Growth

The hermetic sealing industry faces increasing demands for performance in extreme conditions while addressing miniaturization challenges across high-tech sectors.

📈 Emerging Industry Trends:

  • Space industry expansion driving advanced sealing needs

  • Medical implant technology requiring biocompatible solutions

  • EV and renewable energy creating new power sealing applications

  • Advanced materials enabling higher temperature performance

Get Full Report Here: Global Hermetic Glass-to-Metal Seals Market – View in Detailed Research Report

These industry leaders continue to push the boundaries of hermetic technology, enabling next-generation applications across critical industries.