What Great Lakes Crystal Technologies does

Great Lakes Crystal Technologies (GLCT) is a U.S. manufacturer of high-purity, single-crystal diamond substrates produced via proprietary chemical vapor deposition (CVD) reactors. Founded in 2019 as a Michigan State University spinout, the company commercializes 35+ years of diamond process R&D led by CTO Dr. Timothy Grotjohn, with reactors and substrates 100% designed and grown domestically. Its product portfolio spans five diamond substrate grades (Optical, Quantum, Thermal, Electronics, and Doped Diamond) plus advanced prototyping and co-development services targeting nitrogen-vacancy (NV) center quantum sensing, thermal management for AI chip advanced packaging, high-power and wide-bandgap electronics, X-ray optics, and extreme-environment (nuclear, space, defense) applications.

GLCT operates a direct enterprise sales model with custom, quote-based pricing tied to substrate grade, size, doping, and surface finish, supplemented by federal non-dilutive funding (DOE SBIR/STTR, NSIC, Army, Air Force) that has totaled over $20 million cumulatively. The go-to-market is anchored in technical consulting engagements, federal R&D partnerships, and consortium activity, with named customers including the U.S. Army Research Laboratory, Argonne National Laboratory, Lawrence Livermore National Laboratory, and the University of Illinois (ARPA-E ULTRAFAST program). The company is a founding member of the Quantum Economic Development Consortium and a corporate partner of the Chicago Quantum Exchange, with operational sites in East Lansing (HQ and R&D), Lansing (Pilot Scale Plant), and a Chicago satellite office established in 2023. Revenue is generated primarily through hardware sales, professional services for prototyping, technical consulting, and government grants, with no disclosed commercial recurring revenue at scale.

Name

Great Lakes Crystal Technologies

Legal name

Great Lakes Crystal Technologies, Inc.

Website

https://glcrystal.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Great Lakes Crystal Technologies manufactures single-crystal diamond substrates using proprietary CVD reactors for quantum sensing, AI chip thermal packaging, high-power electronics, and extreme-environment applications, selling to federal agencies, national labs, and advanced semiconductor R&D customers.

Ownership category

akta.pro rank

Product category

Semiconductor Diamond Materials

NAICS

Semiconductor and Other Electronic Component Manufacturing (33441)

akta.pro primary industry

Compound Semiconductor Wafers & Substrates (SiC/GaN/GaAs/InP/Sapphire) (HDAHAGAB)

akta.pro secondary industries

Deposition Equipment (CVD/PVD/ALD/Epitaxy) (HDAHAEAB), Package Substrates & Interposers (ABF/BT, Silicon/Glass) (HDAHADAE)

Keywords

• Single-crystal diamond substrates
• CVD diamond materials
• Quantum sensing diamond
• Power electronics diamond
• Semiconductor diamond wafers

Headquarters

HQ city

East Lansing

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Infrastructure

Revenue model

1. Diamond Materials Sales: Sale of ultra high-quality single-crystal diamond plates, substrates, and epitaxial wafers for performance-driven applications in quantum sensing, advanced packaging for AI chips, high-power electronics, and more.
2. Advanced Prototyping & Co-Development Services: Partnership with leading manufacturers and research teams to transform advanced diamond substrates into fully functional prototypes including thermal management system development, high-frequency electronic device prototyping, NV-diamond quantum sensor integration.
3. Technical Consulting: Expert diamond engineering consulting services for technical guidance to validate feasibility and accelerate path from idea to implementation for advanced prototyping and custom collaboration projects.
4. Federal/Government Project Funding: Non-dilutive funding through federal grants including DOE SBIR/STTR awards, NSIC awards, and other government programs supporting quantum technology, defense, and energy applications.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Great Lakes Crystal Technologies manufactures ultra high-quality single-crystal diamond plates, substrates, and epitaxial wafers using proprietary chemical vapor deposition (CVD) reactor designs developed over 35+ years of research at Michigan State University. The company offers five substrate grades—Optical, Quantum, Thermal, Electronics, and Doped Diamond—plus Advanced Prototyping & Co-Development services for quantum sensing, AI chip thermal packaging, high-power electronics, and extreme-environment applications. All CVD reactors and diamond substrates are 100% designed and grown in the USA.

Product overview

Great Lakes Crystal Technologies offers a portfolio of ultra high-quality single-crystal diamond plates, substrates, and epitaxial wafers manufactured using proprietary chemical vapor deposition (CVD) reactor designs. The product portfolio consists of five core substrate grades (Optical, Quantum, Thermal, Electronics, and Doped Diamond) plus Advanced Prototyping & Co-Development services. These products serve performance-driven applications in quantum sensing, advanced packaging for AI chips, high-power electronics, and extreme-environment systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Optical Grade Substrates Single-crystal diamond substrates engineered for exceptional clarity, structural integrity, and optical precision for demanding photonic and electronic applications. Designed for extreme thermal, optical, and radiation environments with ultra-low defect densities and outstanding light transmission.
• Quantum Grade Substrates Diamond substrates engineered with nitrogen-vacancy (NV) centers featuring ultra-high purity, extremely low defect densities, exceptional spin coherence properties, and superior optical performance for quantum sensing and quantum information science applications. Includes large-area and isotopic purification variants for quantum-grade use.
• Thermal Grade Substrates Diamond substrates engineered for exceptional thermal conductivity and mechanical stability to enable rapid heat spreading in high-power and high-density systems. Enhance performance, efficiency, and lifetime in power electronics, RF devices, and advanced semiconductor applications including AI chip thermal packaging.
• Electronics Grade Substrates High-purity diamond substrates combining low defect density with superior thermal and electrical properties for demanding electronic environments including RF and microwave electronics, power devices, and wide-bandgap semiconductor platforms.
• Doped Diamond Substrates Precision-engineered nitrogen-doped, boron-doped, and phosphorus-doped diamond substrates offering controlled electrical conductivity while maintaining diamond's thermal and mechanical advantages for high-power electronics, solid-state sensors, and electrochemical devices.
• Advanced Prototyping & Co-Development Services Partnership services for transforming advanced diamond substrates into fully functional prototypes including thermal management system development, high-frequency electronic device prototyping, NV-diamond quantum sensor integration, and novel device architecture co-development.

Quantifiable outcome

• Figures of merit several orders of magnitude greater than silicon for power electronics applications
• +2 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

14 partnerships are on record, tiered secondary and core.

• K1 SemiconductorsecondaryStrategic or Co-development Partner · 1 January 2026Chicago Quantum Exchange corporate partner collaborating with GLCT on wafer technology advancement. K1 is developing novel wafer-splitting technique enabling up to 20x wafer reuse for high-performance semiconductor materials including diamond.
• WD Advanced MaterialssecondaryStrategic or Co-development Partner · 1 January 2026CQE corporate partner collaborating in the Midwest diamond supply chain ecosystem for quantum technology applications.
• Applied MaterialssecondaryStrategic or Co-development Partner · 1 January 2026CQE corporate partner collaborating on diamond synthesis, wafer production, and thin-film integration to overcome production bottlenecks for diamond-based quantum sensor adoption.
• University of IllinoissecondaryStrategic or Co-development Partner · 1 January 2024ARPA-E ULTRAFAST program partner with $3 million project led by ECE associate professor Can Bayram. GLCT is co-PI on project to develop optically-triggered diamond semiconductor switching devices for power grid control and protection.
• Lawrence Livermore National LaboratorysecondaryStrategic or Co-development Partner · 1 January 2024Project partner with University of Illinois and Stanford on high-power diamond optoelectronic device development as part of ARPA-E ULTRAFAST program.
• Chicago Quantum Exchange (CQE)coreStrategic or Co-development Partner · 14 September 2023GLCT joined as a corporate partner in 2023. Part of an intellectual hub focused on accelerating quantum information science and engineering. GLCT collaborates with other quantum technology companies including Quantopticon and memQ within the CQE ecosystem developing partnerships to build domestic quantum diamond supply chains.
• Argonne National LaboratorysecondaryStrategic or Co-development Partner · 6 February 2023GLCT selected for DOE Phase I SBIR to develop diamond sensor for molten salt reactors. Testing partnership includes Argonne's Center for Nanoscale Materials (CNM) for advanced sensor testing. Dr. Alex High (UChicago/Argonne) and Dr. David Czaplewski provide technical guidance.
• Advent Diamond, Inc.secondaryStrategic or Co-development Partner · 23 August 2021Strategic alliance MOU between GLCT (MSU diamond materials startup) and Advent Diamond (ASU diamond device startup). Partnership includes joint federal R&D grant proposals, IP licensing, co-marketing, co-development of new products, and strategic customer-supplier relationships. Joint DOE Energy Frontier Research Center (ULTRA) with both universities.
• Resilient Infrastructure + Secure Energy (RISE) ConsortiumsecondaryStrategic or Co-development Partner · 9 August 2021GLCT joined RISE Consortium focused on addressing energy security and climate crises. Works with innovators to rapidly deploy technologies for installation and operational energy, integrating energy and climate resilience into performance contracting.
• Duality Quantum AcceleratorcoreStrategic or Co-development Partner · 15 July 2021GLCT was selected to join the inaugural cohort of Duality, the nation's first quantum accelerator program. Located in Chicago, provides access to facilities, quantum researcher network, industry and investor connections, mentorship, and entrepreneurial training from University of Chicago Booth School of Business.
• UCSB NSF Quantum FoundrysecondaryStrategic or Co-development Partner · 1 January 2021GLCT is a member of the UCSB NSF Quantum Foundry industrial advisory board, contributing to national quantum materials research initiatives.
• Fraunhofer USA Center for Coatings and Diamond Technologies (CCD)coreStrategic or Co-development Partner · 1 January 2020MSU-located research center where much of GLCT's foundational diamond technology was developed in collaboration with Dr. Grotjohn. Dr. Grotjohn served 6 years as R&D Director of CCD.
• Quantum Economic Development Consortium (QED-C)coreStrategic or Co-development Partner · 1 January 2019GLCT is a founding member of QED-C. Collaborates on quantum technology ecosystem development, regulatory advancements, and cross-sector partnerships to bridge sensor developers and end-users for faster commercialization.
• Michigan State UniversitycoreStrategic or Co-development Partner · 1 January 2019GLCT spun out of MSU research led by Dr. Timothy Grotjohn with IP licensed from MSU Research Foundation. Technology based on 35+ years of diamond research at MSU including collaboration with Fraunhofer USA Center for Coatings and Diamond Technologies (CCD).

Scale indicators8 records

Recent moves11 records

Expansion highlights7 records

Direct peers

• Element Six: Global leader in synthetic diamond and supermaterials, offering CVD-grown single-crystal diamond substrates for quantum, electronics, and thermal applications. Most directly comparable to GLCT in product category and end-market focus, though it is a much larger, De Beers-affiliated incumbent.
• Scio Diamond Technology: CVD-grown single-crystal diamond producer for industrial and semiconductor applications. Comparable in production technology (CVD) and end markets, though historically skewed toward jewelry and gem-grade diamond.
• Advent Diamond: ASU-spinout developing diamond electronic devices and has an explicit strategic alliance MOU with GLCT for joint R&D, co-marketing, and federal grant pursuit. Highly comparable in product technology and customer overlap.

Broad incumbents

• IQE plc: Global supplier of compound semiconductor wafers (GaAs, InP, GaN, SiC) for RF, photonics, and power electronics. Comparable end-market exposure and is a previous employer of GLCT co-founder Keith Evans (QED/IQE).
• Coherent Corp (formerly II-VI): Diversified semiconductor materials company with a broad SiC, GaAs, GaN, and compound semiconductor substrate portfolio. Competes with GLCT across wide-bandgap and compound semiconductor wafer applications and serves as a benchmark for materials-platform scale economics.
• Applied Materials: Largest semiconductor equipment and materials supplier, actively collaborating with GLCT through the Chicago Quantum Exchange on diamond synthesis, wafer production, and thin-film integration. Comparable through CVD equipment and process integration expertise.
• Wolfspeed: Pure-play SiC wide-bandgap semiconductor leader for power electronics, RF, and EV applications. Competes with GLCT's boron-doped diamond substrates in the high-power electronics roadmap and represents the incumbent alternative that diamond must displace.
• ROHM Semiconductor: Japanese power-semiconductor leader with significant SiC investment and product portfolio. Represents a Tier-1 incumbent that GLCT's doped diamond substrates must compete with for high-power electronics design wins.

Emerging players

• Kyma Technologies: GaN substrate and device developer serving power electronics and RF. Multiple GLCT executives (Keith Evans, Paul Quayle) previously worked at Kyma, and the companies operate in overlapping wide-bandgap semiconductor ecosystems.
• Akhan Semiconductor: Developer of diamond-based semiconductor devices, including diamond substrates for electronics and optics. Comparable in core diamond-semiconductor focus though focused more on device integration than pure substrate supply.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/glctech
• Xx.com/glcrystalt

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds10 records

Investors5 records

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

M&A

Investments

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

Frequently asked questions about Great Lakes Crystal Technologies