ALSEAMAR

About ALSEAMAR

Develops, designs, operates, maintains high-performance underwater solutions for scientific research, offshore industries, and naval defense requirements, including gliders and acoustic systems.

Key facts

Industry

Defense and Space Manufacturing

Company size

51–250 employees

Headquarters

Rousset, Hauts-de-France, France

Revenue

$34.8M – $157MTamtam estimate

SIREN

340161595

Website

alseamar-alcen.com

LinkedIn

linkedin.com/company/alseamar

ALSEAMAR in the news

• Un planeur sous-marin pour explorer les grands fonds

  Alseamar is developing a deep-sea glider to explore ocean depths up to 3,500m near Mayotte for volcanic risk monitoring, with deployment planned for 2031.

  lamarseillaise.fr · Dec 26, 2025
• Alseamar, lauréate France 2030, prépare la nouvelle génération de planeurs océaniques

  Alseamar is developing advanced underwater gliders capable of reaching 3,500 meters depth, supported by €11 million from France 2030, to enhance oceanographic research and environmental monitoring.

  lejournaldesentreprises.com · Dec 1, 2025
• À Rousset, on fabrique des planeurs pour les abysses

  Alseamar develops advanced autonomous underwater gliders for deep-sea scientific and military data collection, supported by France 2030 funding.

  laprovence.com · Nov 28, 2025
• France 2030 : Ifremer confie à ALSEAMAR la conception d’un planeur sous-marin capable d’atteindre 3 500 m

  ALSEAMAR is developing a deep-sea autonomous glider for Ifremer to explore ocean depths up to 3,500 meters, enhancing France's oceanographic research capabilities.

  figaronautisme.meteoconsult.fr · Nov 18, 2025
• Le futur planeur sous-marin français ira flirter avec les abysses

  Alseamar is creating an autonomous underwater glider to explore ocean depths up to 3,500 meters, enhancing marine research and technology in France.

  journaldugeek.com · Nov 15, 2025