Starlim

What Starlim does

Starlim (legal entity: Starlim Spritzguss GmbH) is a privately held, family-owned Austrian manufacturer specializing in liquid silicone rubber (LSR) injection molding, founded in 1984 by Franz Sterner in Marchtrenk, Upper Austria. The company operates as a full-service provider of custom precision silicone components for industrial, life science, and mobility sector customers, with ten wholly-owned facilities and partner entities across Austria, Canada, China, Germany, Italy, and Morocco. Approximately 1,740 employees produce 14–15 billion silicone parts annually, positioning Starlim as the world's largest manufacturer of liquid silicone products by injection molding, with EUR 239 million in disclosed annual sales.

The product portfolio centers on single-component and multi-component LSR injection molding, supplemented by micro molding for components under 10 mg, ISO 14644-1 Class 7&8 / GMP Class C&D clean room production for medical applications, and in-house tool making via the sister company Sterner Werkzeugbau GmbH. Technical capabilities include rapid tooling (first near-series parts within 10 working days), testing tools (up to 2,000 items, 6–12 weeks delivery), and a complete product development stack spanning design, simulation, material testing, computed tomography, and rapid prototyping. Vertical integration into mold construction is a notable architectural feature, providing tool-making independence and faster design-to-production iteration.

Starlim operates a direct enterprise B2B sales model with inquiry-based custom pricing, engaging customer engineering and procurement teams across the full design-to-production lifecycle. Revenue mechanics are anchored in custom production orders, design and development services, and high-volume mass production rather than catalog or subscription sales. The company is continuously owner-operated since founding, has no parent company or external institutional ownership, and pursues expansion through wholly-owned international subsidiaries. Its in-house vocational training infrastructure — anchored by the 3,000+ m² Sterner training center in Wels, Austria's first ISO 21001-certified training facility — functions as a long-term talent pipeline supporting operational scaling.

Name

Starlim

Legal name

Starlim Spritzguss GmbH

Website

https://starlim-sterner.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Starlim (Starlim Spritzguss GmbH) is a privately held Austrian manufacturer and the world's largest producer of liquid silicone rubber injection molded parts, serving industrial, life science, and mobility customers across ten global facilities.

Ownership category

akta.pro rank

Headquarters

HQ city

Marchtrenk

HQ country

Austria

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Silicone Injection Molding Parts Manufacturing: Manufacturing and sale of custom silicone injection molded parts for industrial, life science and mobility applications. Revenue generated from production orders, design and development services, and mass production of silicone components.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

Starlim is the world's largest manufacturer of liquid silicone injection molded products, producing custom single- and multi-component silicone components in high volumes for the Industrial, Life Science, and Mobility sectors. The company operates as a full-service provider covering product development, prototyping, in-house tool making via its sister company sterner, and mass production of silicone parts, including micro-molded components under 10 mg and cleanroom-certified medical-grade parts.

Product overview

Starlim is the world's largest manufacturer of liquid silicone products via injection molding, operating as a full-service provider that offers both single-component and multi-component silicone injection molding. The product portfolio centers on the core liquid silicone injection molding service supplemented by micro molding capabilities for ultra-small precision parts and clean room production for medical-grade components. Tool making is handled by partner company sterner, which provides in-house mold construction, rapid tooling for fast initial samples (10-20 working days), and testing tools for near-series production validation. Product development services including design, simulations, material testing, computed tomography, and rapid prototyping are offered to support customers from concept to mass production across industrial, life science, and mobility sectors.

Differentiator

Problem solved

Functional benefit

Brands

• sterner: Tool making partner for the starlim group, specializing in injection molding mold construction and rapid tooling
• sterner training center
• starlim Integrity Line

Products and services

• Liquid Silicone Injection Molding Primary manufacturing process producing single-component and multi-component liquid silicone (LSR) injection molded parts in high-volume mass production runs of precision silicone components for Industrial, Life Science, and Mobility customers.
• Micro Molding Specialized manufacturing process for producing extremely small precision silicone components weighing less than 10 mg with precision undercuts and indentations, targeting applications requiring miniaturized silicone parts.
• Clean Room Production Controlled-environment production of the purest silicone parts in cleanrooms certified to ISO 14644-1 Class 7 & 8 and GMP Class C & D standards, serving medical and life science customers with strict quality and regulatory requirements.
• Product Development Services End-to-end product development services including Design, Development Lab, Simulations, Material Tests, Computed Tomography, and Rapid Prototyping to support customers from initial concept through finished product across industrial, life science, and mobility applications.
• Tool Making (sterner) In-house tool making department operated by sister company sterner that designs and constructs molds exclusively for Starlim's injection molding production, providing flexibility and independence in the production process.
• Rapid Tooling (sterner) Fast tool making service enabling customers to receive first near-series LSR (Liquid Silicone Rubber) injection molded parts within 10–20 working days, with a maximum output of 300 items per run for accelerated prototyping and validation.
• Testing Tools (sterner) Test tool production service for manufacturing LSR injection molded parts under mass production conditions for near-series validation, with delivery times of 6–12 weeks and maximum output of 2,000 items per run.

Quantifiable outcome

• 14-15 billion high-quality silicone parts produced annually
• +3 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

Six partnerships are on record, tiered minor.

• ATG s.r.l.minorOthersItalian partner company located in Castello d'Argile, part of starlim's international network of 10 locations and partners.
• ATG Maroc sarlminorOthersMoroccan partner company in Tanger free trade zone, part of starlim's international network.
• Poly-Nova Technologies Limited PartnershipminorOthersCanadian partner company in Guelph, Ontario, part of the international starlim group.
• Silcos GmbHminorOthersGerman partner company in Reutlingen, part of starlim's international network.
• Silcos Dongguan Co., LtdminorOthersChinese partner company in Dong Guan City, part of starlim's international network.
• AUDIO MOBIL Elektronik GmbHminorOthersAustrian partner company in Ranshofen, part of starlim's international network.

Scale indicators6 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Trelleborg AB: Swedish engineered polymer group with a large polymer-technology / sealing solutions business that produces custom molded silicone and rubber components for industrial, medical, and mobility customers. Direct comparable in custom LSR/elastomer manufacturing for B2B OEM end markets.
• Freudenberg Medical: Global manufacturer of custom silicone and polymer medical components serving device OEMs with clean room production and full-service capabilities. Direct comparable in medical-grade custom silicone molding, one of Starlim's three core verticals.
• Datwyler Schweiz AG: Swiss elastomer and sealing solutions group (which absorbed the former Helvoet silicone business) producing custom molded silicone and rubber parts for pharmaceutical, medical, and mobility customers. Direct comparable in custom LSR components for regulated OEMs.
• Saint-Gobain Life Sciences: Division of Saint-Gobain producing custom silicone and fluoropolymer components for medical device, biopharma, and industrial customers. Direct comparable in custom LSR molding with regulated end-market focus.
• Simtec Silicone Parts: US-based custom liquid silicone injection molding company focused on LSR single- and two-shot parts for medical and industrial OEMs. Direct comparable in LSR-only custom molding services.

Broad incumbents

• Parker Hannifin: Large diversified motion and control technologies company with significant sealing and polymer engineered products operations serving aerospace, automotive, and industrial customers. Overlaps with Starlim in custom elastomer sealing and precision parts.
• Wacker Chemie AG: German chemical company whose Wacker Silicones division is the world's second-largest silicone producer with growing custom molding and life science offerings. Broad incumbent that competes both upstream in LSR supply and increasingly downstream in finished parts.
• Momentive Performance Materials: Major global silicone materials producer with a custom solutions business serving medical, automotive, and industrial customers. Competes with Starlim in custom-molded LSR parts and supplies the broader LSR market upstream.
• Shin-Etsu Chemical Co., Ltd. Japanese chemical group and one of the largest global silicone producers with diversified electronics, chemicals, and specialty materials operations. Comparable as a vertically integrated silicone incumbent operating at scale.
• The Dow Chemical Company: Global materials science major that, through its Dow Consumer Solutions silicones portfolio, competes with Starlim both as an LSR materials supplier and a custom silicones producer. Broad incumbent operating across many of Starlim's end markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCD76fVWq78AzIxaWdU40fdQ
• Facebookfacebook.com/starlimsterner.ooe
• LinkedInlinkedin.com/company/starlim-north-america-corp-
• Instagraminstagram.com/starlimsterner_at

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries8 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 Starlim