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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,714 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryOberriet SgJansen AG
Jansen AG Logo
Verified· 5 sourcesOwner confirmed
Last updatedAugust 5, 2026
Summary

About the company

Die Jansen AG mit Hauptsitz in Oberriet (SG) ist ein führender Schweizer Anbieter von Stahlprofilsystemen und Kunststofflösungen für die Bauindustrie und weitere Industriezweige. Als familiengeführtes Unternehmen entwickelt, produziert und vertreibt Jansen innovative Produkte und Systemlösungen in den Bereichen Stahlsysteme für Fenster, Türen und Fassaden, Geothermie, Wassermanagement, Sanitär- und Heizungsrohre sowie Kunststoffprofile.

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Service area

Offering

Products & services

Industry:Metal Industry
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Jansen AG

Plastics Industry
✓ Offered9
Steel profile systems
Steel profile systems for windows, doors, folding and sliding systems, and façades; thermally insulated and non-insulated versions, fire protection, burglary resistance, ballistic resistance, and break-out resistance.
Plastic Equipment Manufacturing
Jansen Kunststoff Apparatebau is your partner for customized containers, apparatuses and plants made of plastic.
Technical consulting and planning services
Technical consulting, BIM models, JANIsoft planning software, workshop planning, and a technology centre for the design and implementation of steel profile systems.
Kit and component manufacturing
Kit and component manufacturing as well as prepared profiles for steel and wood-metal systems, complemented by component manufacturing for aluminium systems.
Powder coating
Powder coating for components and systems in the field of steel profile systems.
Expertise

Expert

R
Ramon Mattle
Communication Specialist
Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 199 reviews across all connected sources

Sources
GGoogle4.6199
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Common questions

Answers

What does Jansen AG do in the field of plastic profiles?
Jansen manufactures customized plastic profiles, profile tubes, extrusion profiles, and coextrusion profiles for industry, construction, sanitary technology, automation and other applications. All from a single source.
Which plastics does Jansen process?
Jansen processes almost all thermoplastics such as PE, PP, PVC, PA, ABS, PC and TPE, as well as materials with reinforcements and functional additives.
Does Jansen offer custom plastic profiles for customers?
Yes. Jansen develops plastic profiles according to drawings, samples or requirements and supports design, material selection, simulation and serial production.
Which quality standards does Jansen meet?
Manufacturing is carried out according to recognized quality and environmental standards. The company is certified to ISO 9001, ISO 14001 and ISO 45001. In addition, products and processes are monitored through internal tests and laboratory analyses.
What does the Geothermal area at Jansen include?
In the geothermal sector, Jansen provides earth heat boreholes, collector systems and distribution systems. This is complemented by suitable accessories as well as services from plastic equipment construction. This way customers receive tailored components for geothermal plants from a single source.
Press

Media

May 29, 2026Media
Jansen eröffnet Campus
hochparterre.ch
January 28, 2026Media
Jansen und Schüco bauen Partnerschaft aus
rheintal24.ch
January 27, 2026Media
Jansen und Schüco verlängern und erweitern ihre langjährige Partnerschaft
rheintaler.ch
October 29, 2024Media
Jansen investiert in Standort Oberriet
leaderdigital.ch
August 28, 2023Media
Oberrieter Jansen AG übernimmt Grossteil der Geschäfte der Rino Weder AG
tagblatt.ch
Credentials

Certifications & memberships

ISO 9001:2015
Qualitätsmanagementsystem
ISO 45001:2018
Managementsystem für Sicherheit und Gesundheit bei
ISO 14001:2015
Umweltmanagementsystem
Knowledge

Articles about Jansen AG

2 articles
5 min read

When is Plastics Equipment Construction Really Worth It?

What we repeatedly notice in projects at Jansen AG: many start with the purchase price, although the actual decision is made with a view to operation, maintenance and service life. Right there, a suitable special solution separates itself from a formally cheaper but long-term expensive variant.

August 17, 2026·Read article
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Contact

Location

Industriestrasse 34
9463 Oberriet Sg
Opening hours
Mon
07:30 - 12:00, 13:15 - 17:00
Tue
07:30 - 12:00, 13:15 - 17:00
Wed
07:30 - 12:00, 13:15 - 17:00
Thu
07:30 - 12:00, 13:15 - 17:00
Fri
07:30 - 12:00, 13:15 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.513.848
Founded
1946 · 80 years
Last commercial register change
July 9, 2026
Employees
More than 500

45 km radius from Industriestrasse 34, 9463 Oberriet SG

6 min read

How do custom plastic profiles work by the meter?

What we repeatedly notice in practice: the biggest lever is often not the profile itself, but the system question. When Jansen develops a profile, it is rarely only about a cross section, but about the whole application that must function reliably later.

August 14, 2026·Read article