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Through Life Support
atob-alcen.com/en
atob@atob-alcen.com
+33 (0)1 56 70 79 79

ATOB is a Consultancy, Technical assessment, Engineering, Manufacturing and Services Company. Its core business is to perpetuate subsea systems used in Offshore Oil & Gas (mainly brown fields), Industry and Military applications.

Combining high technical skills with project management ATOB provide its customers with turnkey solutions by acting as a master to work on upgrading, revamping, maintenance or rehabilitation of:

  • complex offshore systems for which expertise no longer exists;
  • mostly in shallow to deep waters;
  • always in harsh / demanding environment.


ATOB provides management, audit / assessment / expertise and global operational offers dedicated to:

  • design of new generations of offshore equipment and systems (R&D and EPCC);
  • refurbishing of old equipment;
  • maintenance of existing systems;
  • improvement of existing facilities;
  • decommissioning and recycling of subsea systems.


ATOB has a wide range of skills in following fields:

  • Remotely Operated Vehicle (ROV);
  • pressure equipment installed on platform, ROV, FPSO or all subsea systems (valves, piping, manifold, etc.);
  • subsea facilities for deep offshore projects, involving cables, pipes, risers, tendons, moorings, manifolds, tiebacks, etc.;
  • subsea production & control systems (PLC, hardware upgrade, software update, etc.), subsea instrumentation.
Intervention field