Experts in custody transfer metering as well as natural and liquid gas analysis

Meci, a subsidiary of EES-Clemessy, part of the Eiffage Énergie Systèmes division, combines its expertise and dynamism to play a part in the success of your projects.

As experts in custody transfer metering solutions for gases and liquids, Meci supports you to define, implement or renovate your measuring, analysis, remote-operation and supervision systems.
With its wealth of know-how and continuous innovation efforts, Meci is a recognized player in the upstream, midstream and downstream sectors of oil and gas operations, as well as in industry.

Meci develops turnkey solutions at all stages of oil and gas development:

  • Onshore and offshore production
  • Receiving and shipping in refineries, storage and distillery facilities
  • Transportation and distribution by pipeline, boats, wagons, trucks
  • Oil depots
  • Loading boats, trucks, wagons

Our customers and partners

  • The world's major oil and gas operators
  • Engineering companies
  • Industrial companies
  • Public bodies
  • Integrators
  • Distributors and agents
  • Gas transportation and distribution companies




  • ISO 9001 : 2015 certification
  • COFRAC Accreditation Inspection n°3-1458 Scope available on
  • MASE Safety Management Certification
  • ATEX production quality certification