Company
SEMADENI AG – PLASTICS WITH SWISS PRECISION
Since 1952 we have stood for quality, reliability and responsibility in the plastics industry – as a family-run Swiss manufacturer at our headquarters in Ostermundigen and part of the Semadeni Industry Group, which employs around 200 people.
At a glance
Semadeni AG is a Swiss family business for plastic products based in Ostermundigen near Bern, founded in 1952. It develops, manufactures and supplies more than 8,000 articles available ex stock as well as customer-specific solutions for the laboratory, food, healthcare, industry, logistics and occupational safety sectors. Semadeni combines trade, in-house development and production in Switzerland, and is part of the Semadeni Industry Group, which employs around 200 people across six sites in Switzerland, Germany, Austria and Croatia. Five ISO certifications (9001, 13485, 14001, 22000, 22002-4) and an EcoVadis Gold rating form the audited framework for quality, environment and food safety. In this section you will learn what we stand for – from our history and our values to open positions and a direct line to our team. Choose the right entry point below to find out more about the company, a career at Semadeni or how to reach us.
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Get to know us
Who we are
About us
Swiss plastics specialist since 1952: history, values, sites and membership of the Semadeni Industry Group.
Get to know the companyWorking at Semadeni
Careers
Open positions, apprenticeship and internship places as well as speculative applications – join a family-run Swiss manufacturer.
Jobs & entry pathsHow to reach us
Contact
Direct contact, enquiry form and directions to the headquarters in Ostermundigen near Bern – personal advice within one working day.
Get in touchWhat Semadeni stands for
Swiss family business founded 1952
More than seven decades of continuity: owner-managed, long-term oriented and reliable in both delivery and advice.
Development & production in Switzerland
In-house tool and mould making, injection moulding and thermoforming at the Swiss site – from the idea to the series part from a single source.
More than 8,000 articles ex stock
A broad standard range, quickly available via the online shop, complemented by customer-specific containers, packaging and systems.
Five ISO certifications
Quality (9001), medical devices (13485), environment (14001) and food safety (22000/22002-4) – externally audited, each certificate with its own scope.
Part of the Semadeni Industry Group
Within the group with Logo-Plastic and Biplast – bundled expertise in plastics technology and packaging; blow-moulded hollow bodies come from the Königstein plant (D) and from Biplast in Sitterdorf (CH).
EcoVadis Gold – top 5 %
Circular thinking with recyclates, reusable solutions and recycling-friendly design – as part of our corporate responsibility.
Frequently asked questions about the company
What is Semadeni AG?
Semadeni AG is a Swiss family business for plastic products founded in 1952, with its headquarters in Ostermundigen near Bern. It develops, manufactures and supplies more than 8,000 standard articles as well as customer-specific solutions and is part of the Semadeni Industry Group, which employs around 200 people.
Where is Semadeni based and how many sites are there?
The headquarters is located at Tägetlistrasse 35–39 in 3072 Ostermundigen near Bern. In total, the group is present at six sites in Switzerland, Germany, Austria and Croatia.
Which certifications does Semadeni hold?
Semadeni is certified to five ISO standards: ISO 9001 (quality management), ISO 13485 (medical devices), ISO 14001 (environmental management), ISO 22000 (food safety) and ISO/TS 22002-4 (food packaging). Specific certificates and declarations of conformity are provided on request.
Does Semadeni belong to a group of companies?
Yes. Semadeni AG is part of the Semadeni Industry Group, which also includes Logo-Plastic and Biplast. You can find out more on the «About us» page.
How do I get in touch or apply?
For enquiries, reach us via the contact form, by phone on +41 31 930 18 18 or by e-mail at info@semadeni.com. Open positions and how to proceed are on the Careers page.
Continue at Semadeni
- SustainabilityView
Responsibility & circularity
How we keep plastic in the loop
- SolutionsView
Explore industry solutions
Tailored products for your sector
- CertificationsView
Certifications & Compliance
ISO, EcoVadis and codes of conduct evidenced
- ShopView
Standard products in the online shop
Over 8'000 items ex stock
Talk to our team
Whether it's a product enquiry, custom manufacturing, a partnership or a job application – leave us your request, and our team in Ostermundigen and Vienna will get back to you personally, usually within one working day.
View open positions