EXMAR GmbH has been part of the Swiss SERTO Group since 2002. As a result, EXMAR benefits from technical development opportunities within the Group.

With the entrepreneurial freedom of a independent company, we can think strategically for the long term. And this is the strategy we are pursuing, so that the SERTO Group (which originated from Gressel AG, founded in 1923) will continue to succeed long into the future. We are embracing this vision through constant innovation in new products and services, and a closeness to customers and markets on the ground.

Own companies in Switzerland, Germany, France, Italy, the Czech Republic and China, as well as sales partners in most European countries, are linked together in an efficient and powerful sales network. SERTO places the highest priority on quality, which is consistently implemented throughout the entire group.

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 AG also sells EXMAR products within Switzerland and in non-European countries.

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 connection 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.

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.