Turnkey Project Management

Offshore & Maritime Construction


Project Management


Marine Services

Crewing Services


Safety under all conditions

"We conduct all our operations with the highest safety standards"

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TRESIOS Engineering embraces any offshore and onshore engineering challenge.

TRESIOS is capable of supporting clients around a wide array of engineering projects. From small-scale assignments such as lift plans and steel structures analyses, to vast and complex projects such as offshore pipelay, installation of oil&gas and wind energy structures, and decommissioning of offshore platforms and jackets.

Project Management

TRESIOS Projects is highly specialized in onshore & offshore project management. From tender to work package preparation to on-site project execution. The key to success is TRESIOS’ in-depth and hands-on knowledge of both theoretical and practical installations techniques.

Marine Services

TRESIOS Marine provide services having a nautical bearing, whether it is maritime safety, reflagging, chartering, certification, inspections, or mobilization / demobilization of vessels. The versatile services are done by our own professionals and being offered and executed worldwide.

TRESIOS Marine provides services to owners, operators and charterers and to vessels of all types and sizes around the world. We create value to our clients to give them the most efficient solution(s) for any enquiry. This with regards to safety, time, costs, quality, and location(s).


TRESIOS Onshore & Offshore Crewing is a key asset for our success on any project. TRESIOS is capable and MLC certified to providing onshore engineering staff to support client projects. We aim to meet our clients as a solid partner. Our offshore staff are results-driven professionals with years of extensive offshore experience in the construction industry to and can facilitate in any Offshore installation, removal, decommissioning, or salvage project.

Our professionals are ready to support or manage your projects. Would you like to know more?

  • Renewable Energy

    Tresios has various patented solutions for the Renewable Industry.

  • Oil & Gas

    Experienced in major Oil & Gas projects, Tresios is your turnkey project management company and brings you out-of-the-box solutions

  • Decommissioning

    We have done several case studies for our clients and we specialize in platform and jacket removal.

  • Onshore Civil Construction

    Experienced in several onshore civil projects.

3 Years


60 Professionals

Working Worldwide

12 Ships

Working for Tresios

222 Kilometer

of Pipelaying

17982 Joints

Welded by Tresios

© 2021 TRESIOS |