The SERTO companies

The SERTO Group comprises 7 companies. The headquarters are based in Frauenfeld, Switzerland. We have our own companies in Germany, France, Italy and the Czech Republic, whereby we also produce in our own plants in the Czech Republic and Italy.

In addition, the German company EXMAR GmbH and the Chinese EXMAR China Ltd. are also subsidaries of the SERTO Group with their range of EXMAR branded products.

SERTO AG, Frauenfeld / CH

Group Headquarters, Development, Production, Warehousing and Sales

Langfeldstrasse 117
CH-8500 Frauenfeld
Tel. +41 52 368 11 11

Frauenfeld, the capital of the Canton of Thurgau, is the headquarters of both the SERTO Group and SERTO AG. Frauenfeld is located between Zurich and Constance, directly on the A1/A7 motorway and 30 minutes from Zurich Kloten Airport.
The departments responsible for the SERTO Group, such as management, research and development, design and laboratory, sales, product management, marketing, purchasing as well as the entire production of bent, pre-assembled pipes and ready-to-fit assemblies are located here at the headquarters.

SERTO GmbH, Kassel / DE


Falderbaumstrasse 41
D-34123 Kassel
Tel. +49 561 58004-0

SERTO GmbH has been part of the SERTO Group since 1993. The sales company is located in Kassel, in the geographical centre of Germany, and is well served by both motorways and public transport. The employees in Kassel are responsible for the complete sale of the SERTO brand in Germany.

SERTO S.A.R.L., Ferrières en Brie / FR


13, avenue Joseph Paxton - Bât A
P.A. du Bel Air
F-77164 Ferrières en Brie
Tel. +33 1 64 30 38 38

SERTO S.A.R.L. was founded in 1987 as SERTO's first sales company. An experienced and competent sales team is responsible for the sale of SERTO and EXMAR products in France.

SERTO Italiana S.r.l., Brembate di Sopra / IT

Production and Sales

SERTO Italiana S.r.l.
Via Lesina, 13
I-24030 Brembate di Sopra (BG)
Tel.+39 035 333 000

SERTO Italiana was founded in 2004 as a sales company. In 2014, the production facility in Brembate was integrated into the SERTO Group and as of the beginning of 2021, the two companies were merged at this location.

An experienced and competent team is responsible for the sale of SERTO and EXMAR products in Italy and produces turned parts made of brass and aluminium. The main customer for the production is the SERTO Group; turned parts of varying complexity are also supplied to third-party customers.

SERTO CZ s.r.o., Klatovy / CZ


SERTO CZ s.r.o.
Čertovka 883
CZ-339 01 Klatovy
Tel. +420 376 320 277

SERTO CZ has been part of the SERTO Group since 2008. SERTO CZ produces stainless steel turned parts for SERTO and EXMAR. In addition, SERTO CZ is equipped and specialized in the manufacture of Jacoflon hoses.

SERTO US Inc., West Valley City, UT / USA

Production and Sales

6368 West Beagley Road,
Suite 400
West Valley City, UT 84128 / USA
Tel. +1 385 247 0200

SERTO US Inc. is the youngest member of the SERTO Group. Since the beginning of 2021, bent tubes and complete piping systems have been manufactured for the North American market in West Valley City (next to Salt Lake City). An automatic tube sawing machine, several CNC tube bending machines and an optical tube measuring device allow efficient and high-quality production of the tube systems.

EXMAR GmbH, Bad Nauheim / DE


Am Taubenbaum
D-61231 Bad Nauheim
Tel. +49 6032 86986-0

EXMAR GmbH has been a specialist for stainless steel joining technology since 1976. Its products include cutting and clamping ring fittings according to DIN EN ISO 8434-1/DIN 2353, ball valves, valves, hose fittings as well as customer-specific solutions for pipe connection technology. EXMAR GmbH was taken over by the SERTO Group in 2002 and the warehouse and production were transferred to SERTO in Switzerland in 2014. An experienced and competent team is responsible for the sale of EXMAR products in Germany and the EU.

EXMAR China Ltd., Shanghai / CN


EXMAR China Ltd.
Room 2548-02, 25/F (Act.21/F)
The Headquarters Building
No.168 Xi Zang Middle Road
Huangpu District, Shanghai, 200003
Tel. +86 21 5041 0190

The sales company EXMAR China Ltd. was founded in 2016 as a subsidiary of the SERTO Group. A large and extensive warehouse in Shanghai ensures fast deliveries. The dedicated sales team serves customers throughout China.