InssTek
InssTek develops and manufactures metal 3D printers using its proprietary Direct Metal Tooling (DMT®) technology, a form of Directed Energy Deposition (DED). The company also offers 3D printing, remodeling, and repair services for various industries.
- CEO / Founder
- Kyung Hoon Sun (Co-CEO) & Hyun Gil Kim (Co-CEO)
- Team Size
- 31-50
- Stage
- Active
- Total Funding
- Undisclosed
- Latest Round
- Series B
- Key Investors
- Korea Investment Partners, Ascent Equity Partners, Hanwha Investment
Technology & Products
Key Products
InssTek offers metal 3D printers utilizing laser beams to melt metal powders or wires, depositing them layer by layer. They provide total solutions for Metal AM based on multi-material 3D printing, alloy research, and artificial joint porous coating.
Technological Advantage
The ability to print with multiple materials and repair existing parts gives InssTek a significant advantage in the aerospace and defense industries, where high-value components can be salvaged and enhanced. Their technology also enables rapid alloy development and research.
Patent position
InssTek filed 1 patent family in 2022–2024, down from 16 in 2019–2021, a 94% fall versus a 31% fall in tracked AM filings in the same patent offices. AMPulse analysis
- Filing momentum
- 1 families filed 2022–2024, 16 in 2019–2021 (-94%); all tracked AM filings in the same offices -31%
- Filed in
- KR 63%WO 13%US 13%EP 10%CN 3%
- Named competitors, AM patent families
- Optomec 18TRUMPF 218AddUp 87
30 AM patent families in total. Recent years are still being published, so read a filing change against the same-office figure.
Differentiation
Value Proposition
InssTek provides a comprehensive metal 3D printing solution with its DMT® technology, enabling the manufacturing of complex, multi-material, and functionally graded material parts. Their systems are designed for high-performance applications and offer capabilities for repair and coating.
How They Differentiate
InssTek differentiates itself through its focus on multi-material DED technology and its ability to provide complete solutions, including hardware, software, and services. Their machines are known for their robustness and suitability for industrial applications.
Market & Competition
Target Customers
Companies in the industrial, aerospace, defense, automotive, and medical sectors requiring metal additive manufacturing solutions for production, repair, and research.
Industry Verticals
Industrial, Aerospace/Defense, Automotive, Medical, Education
Competitors
Optomec; Trumpf; AddUp (BeAM Machines)
Growth & Milestones
Growth Metrics
Annual revenue of ~$2.1M (28.3B KRW in 2025); 38 employees as of 2026; operating loss of 2.8B KRW in 2025. LinkedIn shows 31 employees.
Major Milestones
Developed proprietary DMT® technology., technology., Successfully developed a 3-ton, multi-material rocket nozzle in partnership with KARI., Shipped the world's largest metal DED AM system to Russia in 2016., Established partnership with Phillips Corporation for distribution in the Americas., Selected Daishin Securities as IPO underwriter for KOSDAQ listing (2023)., Raised Series B funding from Ascent Equity Partners (2024)., Supplied MX-Lab to US Army Futures Command and 25+ global research institutions.
Notable Customers
Korea Aerospace Research Institute (KARI), US Army Futures Command, Hanwha Aerospace, KAIST, POSTECH, Michigan Technological University, Brown University
AM patents
AM-relevant patents linked to this company.
- Patents
- 31
- Granted
- 19
- Families
- 30
Leading domains: process (29), material (28), equipment (22)
Filings by year: 2023: 1 · 2021: 8 · 2020: 1 · 2019: 7 · 2018: 3 · 2016: 2
- METAL COMPOSITE MATERIAL AND 3D PRINTING METHOD USING SAME2021221413 · WO
- 3D 프린팅에 의한 금속과 폴리머의 결합방법 및 그 방법에 의해 제작된 제품1020180031887 · KR
- LASER FORMING DEVICE20210122113 · US
- 레이저 성형 장치용 파우더 공급 호퍼1025184070000 · KR
- 밸런싱 스테이지 장치1020240153200 · KR
Funding rounds
- Series BUndisclosed2024-06Lead: Ascent Equity Partners · Source: The Bell
- Venture RoundUndisclosed2021-06Lead: Korea Investment Partners · Source: LinkedIn, PitchBook
Equipment deals on record
Publicly disclosed purchases or installs only.
- MX-Lab
1 systems · Not disclosed
Buyer: Chalmers University of Technology (CAM2) · Supplier: InssTek - AM equipment system
1 systems · EUR 241,550.4
Buyer: Bergische Universität Wuppertal · Supplier: INSSTEK,.Inc - AM equipment system
1 systems · EUR 200,000
Buyer: CNRS-Délégation Centre-Est · Supplier: INSSTEK INC