Company profile

Today GISMA is one of the leading manufacturers of high- performance electrical, fibre-optical and hybrid underwater connectors.

The success of GISMA is based on:

  • a high quality management system meeting the requirements of DIN ISO 9001 with DNV-GL certificate
  • consistency in meeting the needs of the customer
  • short and reliable delivery times
  • various services ranging from individual customer advice to the delivery of cabled and fully tested components

Maximum flexibility is assured by more than 95% in-house- production. Special orders are carried out quickly and efficiently using the own computer-aided design department, tooling and ultramodern computer controlled machines for production.


World wide GISMA connectors are used in offshore industry, naval technology, research and renewable energy.

GISMA offers an extensive family of standard connectors with contact numbers from 1-265, voltages up to 12 kV and current ratings up to 1.000 A in 18 different series.

All types of optical fibres, both single- and multi-mode can be assembled with GISMA connectors.

Certificates of approval from well known test organisations such as TÜV (Technical Supervision Association) and DNV-GL etc. are available at extra charge.

GISMA Steckverbinder GmbH corporate philosophy

As a medium-sized family business, we specialise in the development, production and worldwide sales of high quality underwater connectors for harsh environments.

In a close cooperation with our customers and with accurate attention to detail, we develop sophisticated products which meet the exact requirements of our customers and, in doing so, contribute to their success.

With the expertise of our long term employees and a very high vertical rate of manufacture, we control decisive added value steps with regard to quality and productivity.

Alongside product quality, our service team for services and training represent further decisive core competencies. With this, we offer our worldwide customers the highest degree of independence.

We fulfil the continually increasing requirements regarding flexibility with modern infrastructure, an efficient merchandise planning system and a lot of team spirit.

For our employees who are passionate about their work, we create a motivating work environment which inspires them to further the company with creativity and foresight.

We have been dedicated to apprenticeship for more than 30 years and, in structured traineeships, offer pupils and students an insight into the processes of a production company which awakens enthusiasm.

For customers and suppliers, we have an obligation to uphold the principles of decent and respectable merchants. With respect, openness, transparency and competence, we have worked to gain the trust of our partners and want to further develop the cooperation on this basis for the benefit of all.

As a family company it is our ambition to be a reliable partner in future planning for our customers and employees and we will continue our company development in this sense.