Weißer + Grießhaber

What Weißer + Grießhaber does

Weißer + Grießhaber GmbH is a third-generation, family-owned precision plastics manufacturer headquartered in Mönchweiler in the Black Forest region of Germany. Founded in 1969 and currently led by Martin Weißer, the company operates a 20,000 sqm production facility employing approximately 320 people, 114 injection moulding machines, and 215 robots, with a stated annual production capacity of one billion parts. It serves automotive OEMs and Tier 1 suppliers, building technology, medical technology, industrial automation and logistics, and sanitary/water technology customers.

The company's product portfolio is organised around five technology pillars: microfilters and thin-wall technology (with 70 µm mesh capability and up to 500 million units per year), lenses and optics (spherical, aspherical, toric, biconical, and Fresnel geometries), precision plastic gearing and transmission technology, multi-component and insert technology, and assemblies and systems. It also operates in-house mould-making and offers services spanning development, tooling, quality assurance, and logistics. A recent product focus is heatable radomes for ADAS / autonomous-driving sensor protection, which leverages the company's thin-wall and optical-grade moulding capabilities.

The business model is B2B contract manufacturing, with revenue generated by selling serial-production plastic parts and sub-assemblies into long-term OEM and Tier 1 programmes. Differentiation rests on an integrated process chain from design to serial production, proprietary tooling, and a broad certification footprint (ISO 9001, IATF 16949, ISO 14001, ISO 50001, TISAX) that qualifies the company for safety-critical automotive and data-sensitive applications. The company is privately held with no external investors, and is currently investing in AI-supported manufacturing and a stated goal of CO2-neutral production by 2035.

Name

Weißer + Grießhaber

Legal name

Weißer + Grießhaber GmbH

Website

https://weisser-griesshaber.de

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

251–500 employees

Short description

Weißer + Grießhaber is a third-generation, family-owned German precision plastics injection moulder producing one billion parts annually across microfilters, optics, gearing, multi-component parts, and assemblies for automotive, medical, building-technology, and industrial customers.

Ownership category

akta.pro rank

Headquarters

HQ city

Mönchweiler

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Plastic injection moulded components – serial production: Custom plastic injection moulding services delivered as a serial production supplier. The company manufactures high-precision components across multiple technology areas (gears, lenses, microfilters, multi-component parts) for long-term OEM and Tier 1 customers. Revenue is generated through production contracts, typically involving multi-year supply agreements.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Weißer + Grießhaber is a serial-production B2B supplier that develops and manufactures high-precision plastic injection-moulded components for customers across automotive, building technology, medical technology, industrial automation and sanitary/water technology. The offering spans five core competencies — microfilters and thin-wall technology, lenses and optics, gearing and transmission technology, multi-component and insert technology, and assemblies and systems — supported by in-house services in development, mould and equipment construction, AI-supported production, CT-based quality assurance and logistics.

Product overview

Weißer + Grießhaber is a precision plastic injection molding company offering a full-service portfolio spanning from development through series production. Their core offering consists of five integrated competency areas: Microfilters and Thin-Wall Technology for miniaturized components, Lenses and Optics for technical optical parts, Gearing and Transmission Technology for precision plastic gears, Multi-Component and Insert Technology for functional integration, and Assemblies and Systems for complete module solutions. These are supported by comprehensive services including development support, in-house toolmaking, quality assurance with advanced measurement technology, and global logistics. The company serves automotive, building technology, medical technology, and industrial automation sectors with production capacities of 1 billion parts per year across 114 injection molding machines.

Differentiator

Problem solved

Functional benefit

Products and services

• Microfilters and Thin-Wall Technology Custom precision plastic injection moulding of micro-scale, thin-walled and fine-structured components including glass-fibre-reinforced microfilters with mesh sizes down to 70 µm and web widths of 130 µm, produced via hot runner process with volumes up to 500 million units per year. Used by automotive, sanitary and industrial customers requiring miniaturised filtration and thin-wall components.
• Lenses and Optics Design and manufacture of technical plastic lenses and optical components including spherical, aspherical, toric, biconical and Fresnel profiles, plus customised prisms, mirrors and light guides with high transparency, profile accuracy and surface quality. Used in light barriers, laser scanners, lidar sensors, ADAS radar lenses and automated transport systems for industrial automation and automotive customers.
• Gearing and Transmission Technology High-precision injection-moulded plastic gears and gearboxes with tightest tolerances, optimised tooth profiles, low-wear materials and long service life, using multi-component technologies for heavy-duty gears, miniaturisation, magnetic overmoulding and metal inserts. Used in seat adjusters, ABS/ESP, parking brakes, sensor and actuator systems, and medical device drive systems.
• Multi-Component and Insert Technology Custom plastic components with integrated functions produced through multi-component injection moulding and hybrid insert/outsert technology, enabling overmoulding of gears, axles, magnets, sensors and current-carrying components to reduce part count, weight and assembly cost for OEM and Tier 1 customers.
• Assemblies and Systems Complex plastic assemblies and systems ranging from simple modules to high-precision actuators including planetary gearboxes and sensor modules, with end-of-line testing, integrated automation and customised solutions for automotive and industrial applications.
• Service Comprehensive engineering and production services including feasibility studies, design, simulations, FEM analysis and prototyping; in-house tool and equipment construction; AI-supported serial production; quality assurance with CT measurement technology; and logistics and supply chain management, delivered to industrial customers in the B2B segment.

Quantifiable outcome

• 1 billion plastic parts produced per year with consistent quality
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature8 records

Partnerships

Three partnerships are on record, tiered supporting and core.

• Technology partners and simulation software providerssupportingTechnology or IntegrationWeißer + Grießhaber maintains close cooperation with technology partners for cutting-edge software, simulations, and production technologies to remain at the forefront of injection moulding technology. These partnerships support AI-supported manufacturing, filling simulations, and tool optimisation.
• Mould and tool supplierssupportingStrategic or Co-development PartnerFast, reliable supplier network for tools and systems complements the in-house mould-making department, enabling the company to handle projects from pre-series to 96-cavity series tools.
• Automotive OEMs and Tier 1 suppliers (joint development)coreStrategic or Co-development PartnerDevelopment of heatable radomes with integrated heating wire was co-developed with customers, demonstrating collaborative engineering from concept through series production. OEMs and Tier 1 suppliers rely on Weißer + Grießhaber's experience in lens and assembly production.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Röchling Group: Röchling is one of Germany's largest and most diversified plastics processors, with multiple divisions covering industrial, automotive, and medical plastics. It is comparable to W+G as a Tier 1/2 German plastics manufacturer serving automotive and industrial customers, though substantially larger and broader in scope.
• Leonhard Kurz Stiftung & Co. KG: Kurz is a German surface-finishing and plastics specialist with significant automotive Tier 1/2 exposure, supplying decorative and functional plastic components to OEMs. Comparable as a German family-owned, multi-decade automotive plastics supplier with deep OEM integration.
• HellermannTyton (Aptiv-owned): HellermannTyton is a global manufacturer of cable management and specialised plastic components serving automotive, industrial, and infrastructure customers. Comparable in custom plastic component manufacturing with serial-production B2B relationships, though broader in scope and scale.

Direct peers

• Ensinger GmbH: Ensinger is a German precision plastics specialist producing high-performance engineering plastic parts, semi-finished products, and machined components for automotive, medical, and industrial applications. Directly comparable to W+G in serving precision plastic part requirements for regulated industrial customers using similar German engineering and certification standards.
• Wirthwein AG: Wirthwein is a German family-owned plastics group with injection moulding, extrusion, and tool-making capabilities, supplying automotive, white goods, and industrial customers. Comparable as a similarly scaled, multi-site German precision injection moulder serving OEM industrial customers.
• Föhrenbach Kunststofftechnik GmbH: Föhrenbach is a precision plastics manufacturer located in southern Germany producing technical plastic components, gauges, and meter components using injection moulding. Comparable as a mid-sized German precision injection moulder serving measurement, sensor, and industrial automation customers.
• Klein Kunststoff GmbH: Klein Kunststoff is a German injection moulding manufacturer focused on technical plastic parts for industrial customers, including automotive and electronics. Directly comparable in process, customer mix, and mid-market German precision moulding positioning.
• BB-Plastics GmbH: BB-Plastics is a German precision injection moulder producing technical plastic components for automotive, electrical, and industrial customers. Comparable mid-sized German custom moulding peer serving similar industrial OEM segments.

Regional players

• EFTEC AG (HH Holding): EFTEC is a Swiss-German precision plastics manufacturer supplying automotive interior, acoustic, and functional components to European OEMs. Comparable in serving European automotive OEMs with precision moulded components and multi-component technology.

Emerging players

• Stiplastics S.A.S. Stiplastics is a French precision plastics manufacturer specializing in micro-injection moulding and small-format technical plastic components for medical and industrial customers. Comparable in micro-injection and technical plastic moulding capabilities, though smaller and geographically separate.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key highlights7 records

Customer concentration

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Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Weißer + Grießhaber