Superior Technical Ceramics

What Superior Technical Ceramics does

Superior Technical Ceramics (STC), operating as STC Material Solutions, is a US-based manufacturer of advanced technical ceramics and hermetic sealing solutions founded in 1898 and headquartered in St. Albans, Vermont, with a second manufacturing site in Santa Ana, California (Hermetics Division). The company operates two core lines: a Technical Ceramics division producing alumina (74%-99.8% purity), silicate (Steatite, Cordierite, Mullite, Grade A Lava), and zirconia ceramic formulations (ZTA, YTZP, MSZ); and a Hermetic Sealing Solutions division offering ceramic-to-metal brazing, metallization (UHT, HT, MT, LT processes), glass-to-metal sealing, feedthroughs, and hermetic window assemblies. These address extreme-environment requirements including temperatures up to 1700°C, chemical corrosion, mechanical wear, electrical insulation, and biocompatibility for aerospace & defense, medical implants, semiconductor wafer processing, analytical instrumentation, energy, and oil & gas customers.

STC runs an enterprise B2B custom-manufacturing model. Pricing is quote-based and not publicly disclosed; customers submit specifications and drawings via a website RFQ form, with disclosed yearly ceramic spend tiers ranging from $0-$20K to >$500K and multi-year contract cadences. Sales are driven by direct technical application engineering from concept through serial production, supported by AS9100D/ISO 9001:2015 certification (through May 2028), ITAR registration (since July 2007), REACH compliance (240 substances, March 2025), and RoHS/RoHS 3 compliance (2025). Manufacturing spans 135,000+ sq ft with full in-house capabilities from powder formulation through sintering and diamond grinding to ±0.0005 inch tolerances.

STC was acquired by Artemis Capital Partners in October 2018, then acquired IJ Research in January 2021 to add hermetic sealing and brazing capabilities. STC was subsequently acquired by IDEX Corporation (NYSE:IEX), a Fortune 500 diversified industrial company with approximately 7,900 employees and operations in 27 countries, where it now operates as a subsidiary within IDEX's specialty manufacturing portfolio. Notable commercial validations include the 2019 Raytheon EPIC Supplier Excellence Award (one of 32 recipients among thousands of suppliers) and components featured in NASA's Mars Rover program.

Name

Superior Technical Ceramics

Legal name

STC Superior Technical Ceramics

Website

https://ceramics.net

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Technical Ceramics Manufacturing

NAICS

Pottery, Ceramics, and Plumbing Fixture Manufacturing (327110), Clay Building Material and Refractories Manufacturing (327120)

SIC

Pottery & Related Products (3260)

akta.pro primary industry

Ceramic & Zirconia Esthetics (Veneers/Inlays/Onlays) Fabrication (HLABAJAG)

Keywords

• Technical ceramics manufacturing
• Hermetic sealing solutions
• Ceramic-to-metal brazing
• Aerospace defense ceramics
• Alumina zirconia materials

Headquarters

HQ city

Saint Albans

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Custom Ceramic Component Manufacturing: STC manufactures custom-engineered technical ceramic components for aerospace, defense, medical, semiconductor, and industrial applications. Revenue is generated through custom orders with pricing based on material specifications, tolerance requirements, and production volumes. The company offers complete design assistance, engineering, tooling and manufacturing services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Superior Technical Ceramics manufactures custom-engineered advanced technical ceramic components and hermetic sealing solutions for mission-critical applications. The company produces ceramic materials (aluminas, silicates, zirconias) and finished components via in-house powder formulation, forming, sintering, machining, metallization, brazing, and assembly for customers in aerospace and defense, medical, semiconductor, analytical instrumentation, energy, and oil and gas industries.

Product overview

Superior Technical Ceramics (STC) offers a portfolio of advanced ceramic material products and manufacturing services organized into two main divisions: Technical Ceramics (material solutions including Aluminas, Silicates, and Zirconia Ceramics) and Hermetic Sealing Solutions (including ceramic-to-metal brazing, metallization, glass-to-metal sealing, feedthroughs, and hermetic window assemblies). The company provides industry-specific solutions across Aerospace & Defense, Analytical Instrumentation, Energy, Oil & Gas, Semiconductor Processing, and Medical sectors. STC operates as a unit of IDEX Corporation and has acquired IJ Research (now the Hermetics Division) to expand its capabilities in brazing and dissimilar material joining.

Differentiator

Problem solved

Functional benefit

Products and services

• Aluminas Technical alumina ceramics available in purity ranges from 74% to 99.8%, used for electrical isolation, wear resistance, high temperature resistance, and mechanical strength applications.
• Silicates Silicate ceramic materials including Steatite, Cordierite, Mullite, and Grade A Lava, valued for thermal insulation, thermal shock resistance, and low RF loss factors.
• Zirconia Ceramics Zirconia-based materials including Magnesia Stabilized Zirconia (MSZ), Yttria Stabilized Zirconia (YTZP), and Zirconia Toughened Alumina (ZTA), offering high strength, toughness, and wear resistance for extreme applications.
• Hermetic Sealing Solutions Joining of dissimilar materials including ceramic-to-metal brazing, active metal brazing, diffusion bonding, glass sealing, and cofired bonding for hermetic seals used in medical implants, aerospace, and defense applications.
• Metallization Services Four metallization techniques (UHT, HT, MT, LT) for applying metallic layers on ceramic and glass substrates for subsequent brazing or soldering, including electroplating capabilities.
• Glass-to-Metal Sealing Vitreous glass, devitrifying glass, and glass composite sealing for hermetic electrical feedthroughs and opto-electronic window assemblies.
• Hermetic Window Assemblies Hermetically sealed windows made with sapphire, optical spinel, quartz, fused silica, BK7, orgrin lenses for high temperature or high pressure applications.
• Feedthroughs Ceramic insulators with metallic pins brazed to ceramic insulators for medical implants and other applications, designed with biocompatible materials.
• Aerospace & Defense Ceramic Components Custom technical ceramics for aerospace and defense including engine components, electrical components, structural components, optical components, sensor components, and guidance/navigation components.
• Semiconductor Processing Ceramics Technical ceramics for semiconductor manufacturing supporting 100mm, 130mm, 150mm, 200mm, and 300mm wafer systems, including wafer carriers, plasma etching components, and ceramic packages.
• Medical Device Components Brazed, hermetic biocompatible ceramic components for medical applications including cochlear implants, pacemakers, neurostimulators, feedthroughs, and surgical imaging tools.
• Analytical Instrumentation Components Technical ceramics for analytical instrumentation including mass spectrometers, vacuum systems, x-ray imaging, ion/electron beam systems, spectrometers, and sensors.
• Energy Industry Ceramic Solutions Ceramic materials for energy generation and storage including fuel cell components, energy distribution components, electrical power components, structural energy components, and renewable energy components.
• Oil & Gas Ceramic Solutions Ceramic materials for oil and gas upstream processing including pump and valve applications, downhole tool components, ceramic plungers, and wear-resistant products.

Quantifiable outcome

• Components proven in Mars Rover space exploration applications
• +2 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• IJ Research, Inc.coreStrategic or Co-development Partner · 28 January 2021Acquired in January 2021 to expand STC's capabilities in hermetic sealing and brazing. IJ Research, now branded as STC Material Solutions - Hermetics Division, is a leading pioneer of hermetic sealing and joining of dissimilar materials since 1988. The acquisition strengthened STC's ceramics offerings and deepened relationships with key clients in growing industrial sectors.
• LouwersHaniqueminorGTM or Marketing PartnerPart of IDEX companies that collaborate to deliver precision solutions for the semiconductor market. Experts in glass, ceramics and feedthrough solutions. Exhibited together at SEMICON West 2025.
• MilluxminorGTM or Marketing PartnerPart of IDEX companies that collaborate to deliver precision solutions for the semiconductor market. Specialists in advanced laser micromachining and welding of metals. Exhibited together at SEMICON West 2025.
• TreborminorGTM or Marketing PartnerPart of IDEX companies collaborating at SEMICON West 2025. Leaders in high-purity pump and DI water heaters solutions for critical fluid handling. Complements STC's offering for semiconductor environments.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Kyocera: Japanese electronics and ceramics conglomerate with a substantial technical ceramics division serving semiconductor, automotive, and industrial customers. Overlaps with STC in ceramic packages, substrates, and semiconductor processing components but at vastly larger scale and broader product portfolio.
• Saint-Gobain Ceramics: Division of Saint-Gobain focused on technical and refractory ceramics for industrial, aerospace, and electronics markets. Comparable to STC in high-temperature and corrosion-resistant ceramic components, but as part of a much larger materials conglomerate with broader customer reach.
• NGK Insulators: Japanese ceramics manufacturer with strong positions in semiconductor wafer processing (ceramic components for etch and deposition), automotive substrates, and energy storage. Direct overlap with STC in semiconductor processing ceramics and harsh-environment components.

Direct peers

• Morgan Advanced Materials: UK-listed specialty ceramics and carbon materials manufacturer serving aerospace, defense, medical, and energy markets with technical ceramics, hermetic sealing, and brazed assemblies. Highly comparable to STC in customer base, materials portfolio, and custom-component business model.
• McDanel Advanced Material Technologies: US-based technical ceramics manufacturer specializing in high-purity alumina, zirconia, and custom-engineered ceramic components for aerospace, medical, and industrial OEMs. Closely comparable to STC in materials portfolio, custom manufacturing model, and customer verticals.
• CeramTec: German-headquartered advanced technical ceramics leader with strong positions in medical implants (hip, dental), electronics, and industrial applications. Comparable to STC in hermetic sealing, piezo ceramics, and high-purity alumina/zirconia component manufacturing for mission-critical OEM customers.
• Astro Met: US-based advanced ceramics manufacturer producing high-purity alumina and zirconia components for aerospace, medical, and industrial customers. Closely comparable to STC in custom-engineered technical ceramics, small-batch manufacturing, and enterprise customer base.
• CoorsTek: Largest independent technical ceramics manufacturer globally, offering engineered alumina, zirconia, and other advanced ceramic components across semiconductor, aerospace, medical, and industrial markets. Direct overlap with STC in alumina/zirconia materials, custom component manufacturing, and enterprise B2B sales model.
• Ortech Ceramics: US manufacturer of advanced technical ceramics including alumina, zirconia, and silicon carbide for aerospace, defense, medical, and semiconductor markets. Comparable mid-sized competitor with similar custom component focus and enterprise B2B sales motion.

Emerging players

• Lithoz: Austrian manufacturer of lithography-based ceramic 3D printing systems and a service bureau for high-purity technical ceramics (alumina, zirconia). Represents an emerging threat/adjacent capability to STC's traditional pressed-and-sintered manufacturing approach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/superior-technical-ceramics

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Superior Technical Ceramics