What Weisser does

Weisser Spulenkörper GmbH & Co. KG is a German family-owned precision plastics manufacturer founded in 1960 and headquartered in Neresheim, Baden-Württemberg. The company specializes in technical plastic components — principally coil formers (Spulenkörper) and transformer housings (Trafogehäuse) — produced via precision injection molding for sensors, magnets, transformers, relays, and motors. Its manufacturing portfolio spans wire injection molding, high-temperature plastics (PPS, LCP, PEEK), metal-plastic composites, miniature injection molding, and additive manufacturing for technical plastics, supported by in-house toolmaking and optical/sensor-based process monitoring aimed at zero-defect quality targets.

The company operates a dual product structure combining standardized catalog items (Spulenkörper in types OD, ST, MS/MS-UL, LP, safety-class, ferrite, and round; Trafogehäuse in configurations O, K, KK, SV, VE, toroidal, and special designs; plus accessory components) with individually engineered custom parts. It serves eight verticals — automotive (primary), electrical engineering, energy technology, industrial electronics, information technology, lighting technology, mechanical engineering, and medical technology — under certifications including IATF 16949, DIN EN ISO 9001, UL Recognized Molder QMMY2, RoHS, REACH, and POP 2019/1021. Customers are reached through direct B2B engagement and an extensive international agency network spanning most of Europe plus the USA, Israel, and Japan, supplemented by trade-show presence at Coiltech, Formnext, and 3D Printing events.

Revenue is generated via unit pricing on catalog products and a combination of one-time tooling/development fees (50% invoiced on order, 50% on first delivery) plus per-unit pricing on custom parts, with net-30 payment terms and ±10% over/under delivery tolerance on series/special productions. The company is privately held as a GmbH & Co. KG with Weisser Beteiligungs GmbH as general partner; Dr. Alexander Starnecker serves as Managing Director. Revenue figures are not publicly disclosed, and headcount sits in the 251–500 band.

Name

Weisser

Legal name

Weisser Spulenkörper GmbH & Co. KG

Website

https://weisser.de

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

251–500 employees

Short description

Weisser Spulenkörper is a German family-owned manufacturer of precision plastic coil formers and transformer housings, serving automotive (primary), electrical engineering, energy, industrial electronics, and medical technology customers via catalog and custom injection-molded components.

Ownership category

akta.pro rank

Product category

Precision Plastic Components Manufacturing

NAICS

Plastics Product Manufacturing (3261), Plastics and Rubber Products Manufacturing (326)

akta.pro primary industry

Electrical & Electronics Injection Molded Components (Connectors, Housings) (IMANAFAD)

akta.pro secondary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

Keywords

• Precision plastic parts
• Coil former manufacturing
• Technical injection molding
• Transformer components
• Custom plastic components

Headquarters

HQ city

Triberg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Catalog Products: Standard catalog of coil formers (Spulenkörper) and transformer housings (Trafogehäuse) available off-the-shelf, including various types (OD, ST, MS, LP, safety class, ferrite types, round bobbins) and accessories (solder terminals, terminal carriers, temperature sensor mounts, screw insulation bushings, fixing plates, housing feedthroughs).
2. Custom Customer Products: Individually developed and manufactured custom plastic components tailored to specific customer requirements across multiple industries. Pricing typically involves tooling and development costs (50% upon order, 50% upon first delivery) plus per-unit costs. Order minimums and tolerances of ±10% apply for series/special productions.
3. Custom Tooling and Development Services: One-time costs for tooling and development are invoiced at 50% directly upon receipt of order, with the remaining 50% due upon delivery of the first die-cut parts. These are separate from product pricing and represent upfront engineering revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Weisser manufactures precision technical plastic components, primarily coil formers (Spulenkörper), transformer housings, and custom-engineered plastic parts produced via injection molding. The company supplies these components to industrial customers across automotive, electrical, energy, lighting, IT, mechanical engineering, and medical technology sectors, serving both as a serial producer and a development partner for bespoke plastic part solutions.

Product overview

Weisser Spulenkörper offers precision plastic components through a dual product structure: catalog products and custom customer products. Catalog products include Spulenkörper (bobbins/coil formers) in multiple types (OD, ST, MS/MS-UL, LP, safety class, ferrite types, round), Transformer Housings (Trafogehäuse) in various configurations (O, K, KK, SV, VE, toroidal, special designs), and Accessories (Zubehörteile) such as terminal carriers, temperature monitor housings, and insulations. Custom products are developed for specific industry applications across Automotive, Electrical, Energy, Industrial Electronics, IT, Lighting, Mechanical Engineering, and Medical sectors. Manufacturing technologies include Wire Injection Molding, High Temperature Plastics (PPS, LCP, PEEK), Metal-Plastics composites, Miniature Injection Molding, and Additive Manufacturing. The company has over 60 years of market experience with high-precision additive processes for technical plastics and highly automated production.

Differentiator

Problem solved

Functional benefit

Products and services

• Coil Formers (Spulenkörper)

Quantifiable outcome

• Zero-defect quality targets achieved through high-precision control systems and measurement equipment operated by qualified staff
• +1 more outcomes

Segments8 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Four partnerships are on record, tiered minor.

• Marktspiegel WerkzeugbauminorStrategic or Co-development PartnerWeisser Spulenkörper joined the Marktspiegel Werkzeugbau cooperative as its 50th member. The organization evaluates the competitive capacity of the German-speaking toolmaking industry through anonymous benchmarking. Membership allows Weisser to assess its capabilities and processes against industry peers.
• Hochschule Aalen (Aalen University of Applied Sciences)minorStrategic or Co-development PartnerWeisser Spulenkörper partners with Hochschule Aalen through its Graduate Campus to award scholarships for engineers. The company supports a Master of Artificial Intelligence (AI) scholarship for technology-enthusiastic engineers with production experience. The scholarship is combined with employment at the company, supporting the company's goals to optimize production processes and simplify organizational workflows through AI.
• DHBW (Duale Hochschule Baden-Württemberg)minorOthersWeisser Spulenkörper is an approved partner of DHBW for dual university studies, offering students programs in Bachelor of Engineering (Mechanical Engineering), Bachelor of Science (Business Information Systems), and Bachelor of Arts (Industrial Business Administration).
• Kutzschbach Electronic GmbH & Co. KGminorOthersKutzschbach Electronic GmbH & Co. KG serves as Weisser Spulenkörper's appointed data protection officer (Datenschutzbeauftragter) as required by German data protection law (DSGVO/GDPR).

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Simona AG: German manufacturer of technical plastics (semi-finished products, profiles, and finished parts) for industrial, chemical, and electrical applications. Simona is a regional peer in German technical plastics manufacturing with comparable customer profiles in industrial and electrical segments.

Broad incumbents

• Quadrant (Mitsubishi Chemical Advanced Materials): Global manufacturer of engineering and high-performance plastic shapes and machined parts for industrial, electrical, and semiconductor applications. Quadrant's electrical-industry portfolio overlaps with Weisser in custom and catalog technical plastic components.
• Elantas (Altana): Specialty chemicals and materials supplier (part of Altana) producing electrical insulation resins, varnishes, and coatings for the transformer and motor industry. Elantas serves the same customer base that purchases coil formers from Weisser.
• Röchling Group: Large German family-owned manufacturer of engineering plastics serving automotive, electrical, and industrial markets. Röchling competes with Weisser in technical plastics but at much greater scale and with a broader product portfolio including electrical insulation components.
• Ensinger: German manufacturer of high-performance engineering plastics (including PPS, PEEK, LCP) for electrical, mechanical, and medical applications. Ensinger's material portfolio and electrical-industry focus overlap directly with Weisser's high-temperature plastics processing capability.
• Von Roll: Swiss manufacturer of electrical insulation products for transformers, motors, and generators. Von Roll's portfolio of insulation materials and components targets the same transformer value chain as Weisser.
• Sumitomo Bakelite: Japanese global manufacturer of phenolic resins and high-performance thermoset plastics used in electrical and electronic components. Sumitomo Bakelite competes in the high-performance electrical plastics space where Weisser operates with PPS, LCP, and PEEK.
• Weidmann (Hitachi Energy): Global leader in transformer insulation systems, now part of Hitachi Energy. Weidmann supplies insulation components and materials to most major transformer OEMs that also buy coil formers and housings from Weisser, making it a closely adjacent supplier.

Direct peers

• Petko Elektro: Bulgarian manufacturer of coil formers, bobbins, and transformer accessories. Petko is the closest direct competitor to Weisser, offering a similar catalog of Spulenkörper and transformer components across European markets.
• Krempel GmbH: German manufacturer of electrical insulation materials and components for transformers, motors, and generators. Krempel's transformer insulation products are closely related to Weisser's coil former and transformer housing offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/t.h.-weisser-kg

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Weisser