What Okmetic does

Okmetic Oy, founded in 1985 in Vantaa, Finland, designs and manufactures customized, high value-added silicon wafers — primarily in 150–200 mm diameters — for the global semiconductor industry. Acquired by China's National Silicon Industry Group (NSIG) in 2016 and delisted from the Helsinki Stock Exchange, the company runs crystal growth, wafer slicing, polishing, SOI bonding, cavity SOI patterning, DRIE/lithography patterning, TSV processing and epitaxial deposition operations, plus partner-manufactured 300 mm polished and EPI wafers. Its proprietary RFSi®, UF-RFSi®, C-SOI®, E-SOI®, BSOI and Terrace Free SOI product families target three application pillars: MEMS and sensors (pressure, accelerometer, gyroscope, microphone, microfluidic devices for automotive, healthcare, smartphone, industrial and consumer end uses), RF filters and devices (5G/6G front-end modules, RF GaN-on-Si, antenna switches), and power devices (power management ICs, GaN-on-Si power, discrete MOSFET/IGBT).

Okmetic sells B2B under quote-based, multi-year contracts to the world's leading semiconductor companies, several of which have been customers for decades, with named references including Murata Finland (MEMS tilt sensors for NASA's Ingenuity Mars helicopter). Pricing is tailored to wafer specification, diameter (150/200/300 mm), volume and technical requirements, and revenue is generated almost entirely from hardware sales. The company is certified to ISO 9001:2015, ISO 14001:2015 and IATF 16949:2016, employs 500+ people at the Vantaa site (with 500+ additional hires tied to its fab expansion), and runs wholly-owned sales and technical support offices in Finland, Germany, France, USA, Japan, Singapore and China with agents in Korea and Taiwan. Sub-brands include RFSi®, C-SOI®, E-SOI®, BSOI and UF-RFSi®, each registered trademark protecting decades of process IP.

In 2022–2026 Okmetic executed nearly €400 million of capex — its largest investment in company history — to build a new Vantaa fab spanning over 40,000 m² (including a 6,000 m² cleanroom) for 200 mm polished wafer capacity, volume production of which began in early 2026 and is expected to more than double total capacity by 2030. The company committed to SBTi in 2024 with a 90% Scope 1 & 2 reduction target by 2030 (54% reduction achieved versus 2022 baseline via 80% renewable hydropower), and operates AI-based wafer inspection in C-SOI production developed through Labra AI, Aalto University and the iRel40 consortium.

Name

Okmetic

Legal name

Okmetic Oy

Website

https://okmetic.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Okmetic is a Finnish specialty silicon wafer manufacturer producing customized 150–200 mm wafers for MEMS sensors, RF filters, and power devices. The privately held company, owned by China's NSIG since 2016, serves leading global semiconductor customers through direct sales across Europe, North America, and Asia.

Ownership category

akta.pro rank

Product category

Semiconductor Silicon Wafers

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Silicon Wafers (Prime/Test/SOI) (HDAHAGAA)

akta.pro secondary industry

Wafer Services & Reclaim (Epitaxy, Thinning, Reclaim) (HDAHACAH)

Keywords

• Customized silicon wafers
• Silicon-on-insulator wafers
• MEMS wafer substrates
• High resistivity RF wafers
• Semiconductor wafer manufacturing

Headquarters

HQ city

Vantaa

HQ country

Finland

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Infrastructure, Technology or R&D, Operations, Personnel

Revenue model

1. Silicon Wafer Sales: Okmetic generates revenue primarily from the sale of customized, high value-added silicon wafers including 150-200mm polished wafers, SOI wafers, RFSi wafers, patterned wafers, and TSV wafers, as well as partner-manufactured 300mm and EPI wafers. The company serves long-term customers with tailored solutions and maintains a global sales organization with technical support.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Okmetic manufactures and supplies customized, high value-added silicon wafers in 150-200mm and 300mm diameters for the global semiconductor industry. Its portfolio spans four core wafer lines (RFSi® for RF, MEMS, Power, and SOI) plus patterned, TSV, polished, and epitaxial wafers, serving manufacturers of MEMS sensors, RF filters, power devices, and analog/mixed-signal ICs. The company provides tailored wafer solutions and prototyping from its Vantaa, Finland facility, with 300mm wafers supplied through partner manufacturing.

Product overview

Okmetic offers the most extensive 150-200 mm silicon wafer portfolio in the market, organized into four core product lines: RFSi® (high resistivity RF wafers), MEMS (micro-electromechanical systems wafers), Power (power device wafers), and SOI (Silicon-On-Insulator wafers including BSOI, C-SOI®, E-SOI®, and Terrace Free variants). The portfolio also includes patterned wafers, TSV (Through Silicon Via) wafers, DSP/SSP polished wafers, and epitaxial wafers. The company additionally supplies 300 mm wafers through partner manufacturing. Core differentiating products include RFSi® high resistivity wafers for 5G/6G RF filters, C-SOI® cavity SOI wafers for MEMS hermetic packaging, and engineered wafers with trap-rich layers for minimized RF losses. The company supports customized solutions and prototyping services alongside its standard product catalog.

Differentiator

Problem solved

Functional benefit

Brands

• RFSi®: High resistivity silicon wafer line for RF applications
• C-SOI®
• E-SOI®
• BSOI
• UF-RFSi®

Products and services

• RFSi® Wafer Line High resistivity silicon wafers (including engineered trap-rich and ultra-flat UF-RFSi® variants) designed for RF filter and device applications in 5G/6G communications, providing low signal loss, high thermal stability, and reduced parasitic surface conduction.
• MEMS Wafer Line Silicon wafers engineered for micro-electro-mechanical systems (MEMS) and sensor manufacturing, available in single-side polished (SSP) and double-side polished (DSP) configurations for pressure sensors, accelerometers, gyroscopes, microphones, and microfluidic devices.
• Power Wafer Line Silicon and SOI substrates designed for power semiconductor devices including power management ICs, MOSFETs, IGBTs, and GaN-on-Si power electronics used in EV inverters, industrial power supplies, and renewable energy systems.
• SOI Wafers – Silicon-On-Insulator Line

Quantifiable outcome

• Scope 1 & 2 emissions reduced by 54% compared to 2022 baseline, achieved through sourcing 80% renewable hydropower electricity
• +5 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature9 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• VTT (VTT Technical Research Centre of Finland)coreStrategic or Co-development Partner · 1 January 2024Okmetic collaborates with VTT in multiple R&D projects including WIBASE (wide bandgap power electronics), Beetles (low-loss RF wafers), and other Finnish semiconductor research initiatives. VTT coordinates several projects in which Okmetic develops specialized wafer solutions.
• Aalto UniversitycoreStrategic or Co-development Partner · 1 January 2024Okmetic collaborates with Aalto University on crystal growth, wafer processing, defect formation, and impurity behavior research. Partnership includes work on C-SOI interface reliability using machine learning and AI, and investigation of SOI wafers for GaN-on-Si applications.
• IMECcoreStrategic or Co-development Partner · 1 January 2024Okmetic participates in the ARCTIC EU project coordinated by IMEC, developing components and systems for scalable quantum computers and cryogenic micro-systems. Okmetic contributes its expertise in specialty silicon wafers for cryogenic micro-systems.
• Business Finland / Nokia VeturicoreStrategic or Co-development Partner · 1 January 2024Okmetic participates in multiple Business Finland-funded R&D projects including WIBASE, RF SAMPO (EUR 14 million consortium with 10 companies and 3 research organizations), 6G FATE, and 6G TERAFRONT, focused on power electronics, RF technologies, and 6G communications.
• Science Based Targets initiative (SBTi)coreOthers · 1 January 2024Okmetic committed to the Science Based Targets initiative (SBTi) in 2024, establishing a clear roadmap to reduce Scope 1 and 2 emissions by 90% by 2030, with Scope 3 reduction target to be defined by H1 2026.
• Murata FinlandcoreStrategic or Co-development Partner · 1 January 2023Okmetic supplies high-resistivity silicon wafers to Murata Finland for RF filter and sensor applications. Murata's sensors built on Okmetic wafers were used in NASA's Ingenuity Mars helicopter, demonstrating the quality of Okmetic's substrates.
• Moore4Medical Consortium (66 partners, 12 countries)coreStrategic or Co-development Partner · 1 January 2023Okmetic participated in the EU-wide Moore4Medical Ecsel project developing open technology platforms for new electronic medical devices. Okmetic's C-SOI wafers were used in PMUT-based ultrasonic power transfer platforms enabling wireless charging of medical implants.
• Beetles Consortium (VTT, Beneq, Emberion, CoreHW, University of Turku)coreStrategic or Co-development Partner · 1 January 2022Okmetic participated in the Beetles project, developing low-loss high resistivity silicon substrates to meet evolving requirements of advanced RF filters and RF devices. The project demonstrated that substrate-induced losses are effectively mitigated by optimized silicon wafer material.
• iRel40 Consortium (75 partners, 13 countries)coreStrategic or Co-development Partner · 1 January 2020Okmetic participated in the European iRel40 research project to improve reliability of electronic components and systems using AI across the value chain. Collaboration included Infineon, Elmos, Fraunhofer Research Institute, and Aalto University. Focus areas included C-SOI interface reliability and AI-based wafer inspection.
• POSITION-II ConsortiumminorStrategic or Co-development Partner · 1 January 2018Okmetic participated in the POSITION-II project (2018-2021) creating a pilot line for next-generation smart catheters and implants. Okmetic established a new patterning line and developed new crystal growth technology and patterned specialty SOI wafers.
• AutoDrive ConsortiumminorStrategic or Co-development Partner · 1 January 2017Okmetic participated in the AutoDrive project (2017-2020) developing electronics and embedded software for automated driving. Okmetic developed strongly doped C-SOI wafers for next-generation sensors.

Scale indicators10 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• Siltronic AG: German silicon wafer manufacturer (now owned by GlobalWafers) producing 150-300mm polished, epitaxial, and SOI wafers for semiconductor manufacturers. Direct competitor across Okmetic's diameter range and product types.
• Simgui (Shanghai Simgui Technology): Chinese silicon wafer manufacturer (partially affiliated with NSIG ecosystem) producing SOI wafers and 200mm polished wafers. Competes with Okmetic in Chinese and emerging Asia SOI/RF wafer markets.
• Soitec: French semiconductor materials company specializing in engineered SOI wafers (C-SOI, E-SOI, RF SOI). Closest specialty-wafer peer to Okmetic, serving the same MEMS/RF/power customer base with overlapping product portfolios including RF front-end and power substrates.

Emerging players

• IQE plc: UK-based compound semiconductor wafer foundry specializing in GaAs, InP, and GaN epitaxial wafers for RF and photonics. Adjacent peer serving similar RF/wireless customers with compound rather than silicon substrates.
• Rogue Valley Microdevices: US-based MEMS foundry offering custom MEMS wafer processing including patterned silicon, SOI, and TSV. Smaller-scale competitor in the specialty MEMS wafer space where Okmetic's C-SOI and patterned wafers compete.

Broad incumbents

• Shin-Etsu Chemical: World's largest silicon wafer manufacturer with dominant share across 200mm and 300mm polished, epitaxial, and SOI wafers. Direct competitor across Okmetic's product portfolio but at materially greater scale and integrated crystal-to-wafer operations.
• SK Siltron: South Korean silicon wafer manufacturer serving memory and logic customers. Largely focused on 300mm but expanding into 200mm specialty products where it overlaps with Okmetic.
• Sumco Corporation: Japanese silicon wafer manufacturer and #2 globally, focused on advanced 300mm wafers and SOI. Major competitor for memory/logic wafer supply and increasingly active in specialty wafer variants where Okmetic competes.
• GlobalWafers: Taiwanese wafer manufacturer and parent of Siltronic, one of the top five global silicon wafer producers with broad product portfolio across polished, EPI, and SOI wafers. Direct competitor for Okmetic's customers.

Others

• National Silicon Industry Group (NSIG) / NSIG Sineva: Chinese state-affiliated silicon wafer group that owns Okmetic and operates domestic Chinese wafer fabs. Sister entity rather than direct competitor but part of the same wafer supply ecosystem and potential technology transfer channel.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@okmetic8370
• Facebookfacebook.com/okmeticgroup
• LinkedInlinkedin.com/company/okmetic-oy
• Xx.com/OkmeticOy

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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 Okmetic