EPSYNA is a French, family-run company set up in 2020 to market SEAYOS. Its aim is to create innovative instruments for scuba divers.

Our mission: Enriching the experience of scuba divers while enhancing their safety.
Our values: Design, Experience, Innovation

More info: www.epsyna.com

Focus on the SEAYOS inventors

The SEAYOS was invented and developed by two passionate divers (father and daughter!). From the start and the initial patent registration, they have been supported by MAUTOM DEVELOPPEMENT (of which EPSYNA is a subsidiary) which accompanied them at every stage of development through to the SEAYOS commercialisation.


Architect ENSAPLV-Engineer ESTP, passionate about everything regarding sea and sport, practicing scuba diving for a decade or so.


After graduating from Ecole Centrale de Paris, he created and developed his computer company during more than 35 years. Now, he dedicates himself to one of his many passions: diving!

Mautom Développement

MAUTOM DEVELOPPEMENT supported the co-founders of the SEAYOS in the development of prototypes and the preparation of the marketing.

More info: www.mdvpt.com

History of SEAYOS

The SEAYOS founding idea was born in January 2015, but remained in standby for almost three years due to various constraints, including professional, and it wasn't until November 2017 that the project resurfaced. Everything then followed on very quickly with the registration of a French and then an international patent, coupled with the registration of the Seayos® trademark. This was followed by a series of brainstorming sessions then came the time for the first prototypes. It took three years of work, laboratory tests and dives to develop and market the first SEAYOS models (Back, Track and Tek).
2 years later, we decided to create a range specifically for professional divers with three new models: SEAYOS Tek HD, SEAYOS Pro and SEAYOS Monitor.
The SEAYOS team has no intention of stopping there, and new developments are already underway.