Ter Hoek Vonkerosie Rijssen

What Ter Hoek Vonkerosie Rijssen does

Ter Hoek Vonkerosie Rijssen BV is a Dutch privately-held precision contract manufacturer founded in 1990 by Gerrit ter Hoek and headquartered at Propaanstraat 1, Rijssen, Netherlands. The company operates from a single climate-controlled facility (maintained at 20°C) producing high-precision components for the high-tech manufacturing industry, with primary end markets in semiconductor equipment (notably ASML), aerospace (AS9100-certified), space, and medical/pharmaceutical sectors. It serves as a direct B2B supplier to enterprise OEMs, with sales led by an engineering consultation process rather than transactional pricing.

The company's core technology stack centers on EDM (Electrical Discharge Machining) — wire EDM, die sinking, micro EDM milling, and hole-drilling EDM — supplemented by PECM (Precision Electro Chemical Machining, where it holds exclusive Benelux PEM Application Center status from PEMTec since 2016), ultra-precise 5-axis CNC milling via a Jingdiao GRU500 micron-level center installed in 2024 with IMIM (In-Machine Measurement and Intelligent Modification) closed-loop capability, and XJet NanoParticle Jetting ceramic 3D printing operated through the wholly-owned Ter Hoek 3DM subsidiary. Achievable tolerances reach 1 micron with surface roughness as low as Ra 0.06 (EDM) and Ra ≥ 0.02 µm (PECM). The machine park in 2024 totals 23 wire EDM, 4 PECM, and 1 CNC milling machine, with 24/7 unmanned operations enabled by a Fanuc R-2000IC robotization cell since 2023.

The revenue model is project-based custom manufacturing: customers request quotes via the website or direct contact with the sales team, the engineering team assists from design through series production, and pricing is determined per project based on technique selection, material, tolerances, and batch size. The go-to-market is enterprise field sales with deep technical consultation, multi-year contracts, and no intermediaries or resellers. The customer base is concentrated in four vertical segments — semiconductor, aerospace, space, and medical — with ASML explicitly named as a key semiconductor customer. The firm is family-owned, with second-generation Willem Jan ter Hoek serving as CEO since 2022 and the founder as Technical Director. Distribution is direct from the single Rijssen facility, with multi-language website presence (Dutch, English, German) and active international customer acquisition in Europe.

Name

Ter Hoek Vonkerosie Rijssen

Legal name

Ter Hoek Vonkerosie Rijssen BV

Website

https://terhoek.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Ter Hoek Vonkerosie Rijssen BV is a Dutch precision contract manufacturer founded in 1990, specializing in EDM, PECM, ultra-precise CNC milling, and ceramic 3D printing for semiconductor (ASML), aerospace, medical, and space industry OEMs.

Ownership category

akta.pro rank

Product category

Precision Manufacturing Services

NAICS

Industrial Machinery Manufacturing (33324)

SIC

Miscellaneous Fabricated Metal Products (3490)

akta.pro primary industry

EDM & Electrochemical Machining (Wire/Sinker EDM, ECM) (IMAHADAF)

akta.pro secondary industry

Electronics & Industrial Component 3D Printing Services (enclosures, fixtures, functional parts) (IMAAADAL)

Keywords

• Precision machining services
• EDM manufacturing
• PECM services
• CNC milling services
• Ceramic 3D printing

Headquarters

HQ city

Rijssen

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Precision Component Manufacturing: Custom precision manufacturing services for high-tech industries. Projects include prototyping, pilot production, and series manufacturing. Revenue based on specific machining requirements, materials, tolerances, and batch sizes. Process largely unmanned allowing cost efficiency.
2. Engineering Consultation: Technical advisory services helping customers determine optimal manufacturing approaches, total cost of ownership, and process optimization. Engineers assist from design phase.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Ter Hoek Vonkerosie Rijssen BV is a Dutch precision manufacturing company that produces custom precision components for the high-tech manufacturing industry. The company specializes in EDM (Electrical Discharge Machining) techniques including Wire EDM, Die Sinking, Micro EDM Milling, and Hole-drilling EDM, alongside PECM (Precision Electro Chemical Machining), ultra-precise 5-axis CNC milling, and ceramic 3D printing. They serve semiconductor, aerospace, aviation, and medical industries with engineering consultation from design through series production.

Product overview

Ter Hoek Vonkerosie Rijssen BV is a precision manufacturing company offering a portfolio of advanced machining services centered around EDM (Electrical Discharge Machining) technologies and complementary precision manufacturing techniques. The core offering includes Wire EDM, Die Sinking, Micro EDM Milling, and Hole-drilling EDM under the EDM umbrella, supplemented by PECM (Precision Electro Chemical Machining) for heat-free material dissolution, and ultra-precise CNC milling with 1-micron capability using Jingdiao technology. Additionally, Ter Hoek 3DM provides ceramic 3D printing via XJet NanoParticle Jetting. The Ter Hoek Academy extends the portfolio with knowledge-sharing services through masterclasses and webinars. These techniques are combined and tailored to customer specifications across industries including aerospace, semiconductor, medical, and aviation.

Differentiator

Problem solved

Functional benefit

Products and services

• EDM (Electrical Discharge Machining) Services Material processing using electrical discharge between workpiece and electrode to melt away material with accuracy to a thousandth of a millimeter. Includes Wire EDM, Die Sinking, Micro EDM Milling, and Hole-drilling EDM techniques. Used by high-tech industries for precision component manufacturing.
• Wire EDM (Draadvonken) Wire-cut electrical discharge machining using Molybdenum wire electrode to cut contours through electrically conductive materials with extreme precision comparable to grinding quality. For complex shapes and contours with minimal tolerances.
• Die Sinking EDM (Zinkvonken) Electrical discharge machining using a shaped electrode that sinks into material to create complex 3D forms, square holes, keyways, or mold cavities. For high-precision cavity and blind contour work.
• Micro EDM Milling (Microvonkfrezen) Micro-level electrical discharge machining combining benefits of die sinking and hole drilling for precision shaping of conductive materials with accuracy up to 1 micron on small surfaces.
• Hole-Drilling EDM (Vonkboren) High-speed precision hole drilling using tubular electrodes and spark discharge. Capable of creating holes from 1mm diameter in materials up to 600mm thickness.
• PECM (Precision Electro Chemical Machining) Advanced machining technique that dissolves material using controlled electrical voltage in electrolyte, achieving accuracy up to 0.002mm with no heat generation, mechanical stress, microcracks, or contamination. Surface roughness Ra >= 0.02 µm. Suitable for complex geometries and high-stress components.
• Ultra-Precise CNC Milling High-precision 5-axis CNC milling using Jingdiao GRU500 Micron-Level machining center with IMIM (In-Machine Measurement and Intelligent Modification) technology. Achieves 1-micron cutting accuracy, 0.1µm feeding resolution, and surface roughness below 10nm. Max workpiece Ø600 x 330mm.
• Ceramic 3D Printing (Ter Hoek 3DM) Ceramic additive manufacturing using XJet NanoParticle Jetting (NPJ) technology, building parts layer-by-layer from liquid nanoparticle cartridges and sintering to >99.5% density. Features 7-10 µm layer thickness, 150-200 µm minimum feature size, ±50 µm dimensional accuracy, and Ra 1-3 µm surface finish.
• Engineering Consultation Technical advisory service helping customers determine optimal manufacturing approaches, total cost of ownership, and process optimization. Engineers assist from design phase through series production.
• Ter Hoek Academy Educational platform offering on-demand masterclasses and webinars on EDM techniques (Wire EDM, Die Sinking, Micro EDM Milling), PECM, and Surface Cleanliness for engineers worldwide.

Quantifiable outcome

• Tolerance achievable down to 1.0 micron (thousandth of a millimeter)
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered core and minor.

• PEMTeccoreTechnology or Integration · 1 January 2016Since 2016, Ter Hoek has been the exclusive PEM Application Center for Benelux on behalf of PEMTec for PECM (Precision Electro Chemical Machining) technology. This partnership provides access to advanced PECM capabilities and positions Ter Hoek as the specialist for PECM solutions in the Benelux region.
• Universities and Knowledge InstitutesminorStrategic or Co-development PartnerTer Hoek develops products in collaboration with universities and knowledge institutes, conducting project-based research on new products and processes.

Scale indicators6 records

Recent moves20 records

Expansion highlights5 records

Direct peers

• Röders GmbH: Röders is a German specialist in high-precision 5-axis CNC milling machines and precision machining services for mold-making, aerospace, and medical device customers. It is comparable to Ter Hoek's ultra-precise CNC milling capability (Jingdiao GRU500) and similar focus on sub-micron accuracy for niche high-value applications.
• Hembrug Machine Tools: Hembrug is a Netherlands-based manufacturer of ultra-precision hard turning machines and a provider of precision turning services for aerospace, bearing, and instrumentation customers. It is comparable to Ter Hoek as a Dutch specialist in ultra-precision metalworking serving high-end industrial applications.
• NTS Group: NTS Group is a Dutch precision mechatronics contract manufacturer serving semiconductor equipment makers, aerospace, and medical OEMs with similar high-mix, high-precision production requirements. Like Ter Hoek, it operates in the Netherlands, supplies Tier 1 customers with mission-critical components, and combines engineering consulting with precision manufacturing services.
• VDL ETG (VDL Enabling Technologies Group): VDL ETG is a Dutch high-tech contract manufacturer serving semiconductor, aerospace, and medical industries with precision machining, assembly, and mechatronics systems. It is directly comparable as a Netherlands-based enterprise supplier to ASML and similar OEMs with multi-technique manufacturing capabilities.

Broad incumbents

• EMAG Group: EMAG is a German-Swiss machine tool manufacturer offering a broad portfolio including EDM, turning, grinding, and milling systems for automotive, aerospace, and industrial customers. It is comparable as a broader incumbent offering overlapping EDM capabilities to Ter Hoek's customer base, but with much larger scale and full-line machine tool offerings.
• Sodick: Sodick is a Japanese manufacturer of Wire EDM, Die Sinking EDM, and high-speed milling machines serving tool makers and precision manufacturers globally. It is comparable to Ter Hoek's core Wire EDM and Die Sinking capabilities, but as a large machine tool incumbent rather than a precision contract manufacturer.
• Makino Milling Machine: Makino is a Japanese-founded machine tool manufacturer specializing in EDM, horizontal machining, and aerospace structural part machining systems. It overlaps with Ter Hoek's EDM offerings and serves the same aerospace and high-tech industrial customer base as a broad incumbent.
• GF Machining Solutions: GF Machining Solutions (a division of Georg Fischer) is a Swiss manufacturer of EDM, milling, and laser texturing machines used by tool shops and contract manufacturers worldwide. It overlaps with Ter Hoek's EDM and precision milling capabilities but operates as a broad incumbent machine tool supplier rather than a specialty service bureau.

Others

• XJet: XJet is an Israeli provider of NanoParticle Jetting ceramic 3D printing technology, which Ter Hoek uses to offer ceramic additive manufacturing under the Ter Hoek 3DM brand. It is comparable as the enabling technology provider for Ter Hoek's ceramic 3D printing service, though it operates as a printer manufacturer rather than a contract service bureau.
• PEMTec: PEMTec is a German manufacturer of Precision Electro Chemical Machining (PECM) machines and technology, and Ter Hoek's exclusive Benelux PECM partner since 2016. It is comparable as the underlying technology provider enabling Ter Hoek's PECM service offering, though it operates as a machine supplier rather than a contract manufacturer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/vonkerosie
• Facebookfacebook.com/TerHoekVonkerosie
• LinkedInlinkedin.com/company/terhoekvonkerosie

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

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 Ter Hoek Vonkerosie Rijssen