TRESIOS Crewing & Careers, providing Crewing Services (Offshore Crewing) and Recruitment (Onshore Staffing) is a key asset to our success on any project. It enables us to fully design, construct and utilize projects end-to-end, completely turn-key, creating a big advantage for our customers. Our Talentpool exists of very knowledgeable, highly qualified and multidisciplinary professionals, ensuring us to swiftly respond to our clients’ requests.

More information about our Crewing & Careers services can be found at the TRESIOS Crewing & Careers website.


TRESIOS is capable and MLC-certified to provide qualified offshore crew to support client projects. We strive to meet our clients as a solid partner with our in-depth knowledge and global network of professionals.

Our offshore personnel are result-oriented professionals with years of extensive offshore experience in the construction industry and can assist in any offshore installation, removal, decommissioning, or salvage project. Our team has over 20 years experience in technical crewing for the Oil & Gas, Maritime and Renewables industry.

All personnel we dispatch obtains or possesses the necessary certifications to meet crewing regulations of the vessel’s flag state and specific waters of operation.

Our dispatched crew share our commitment to safety and reliability. Our clients trust us to handle their crew management, while they focus on their core business and profitability.

Our crew management services include:

  • Crew management from single hire through full fleet crews
  • Visas, flag-state and immigration documentation support
  • Crew member certifications, including Standards of Training, Certification and Watchkeeping (STCW) or CoC’s.


TRESIOS is SNA-certified, according to standard NEN 4400-1 and registered in the Labour Standards Register, which allows us to act as a temporary employment agency. Our recruitment service focuses on providing onshore engineering and office personnel, with a technical background.

Because we can reach out to an extensive network of people who all have the TRESIOS DNA incorporated we can always ensure the same high quality. The TRESIOS team managing this service all are senior experienced in international crewing and recruitment within the Maritime and Energy sector.

Before anyone is included in our Talent pool, a process is conducted regarding health, safety, responsibility and reliability. This ensures us they will get the job done according all rules and regulations.


Arjenne Koster-Vroegindeweij
Business Unit Manager
Crewing & Careers

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