Certifications and Approvals

TESS holds a great number of certificates and approvals to ensure that the quality of our work is well preserved. TESS is certified according to ISO 9001, 14001, and 45001, audited and approved by DNV.

To emphasize and strengthen our quality goal; Customers to return – not the products, TESS offers to our customers approved hose workshops to ensure high quality and reliability. Several of our workshops are certified by DNV and approved to manufacture type-approved (TA) hoses. The wide range of TA covers industrial-, metal- and hydraulic hoses. In addition, TESS holds the approval according to the marine equipment directive, MED.

TESS has certified welding workshops according to NS-EN ISO 3834-2 and welders certified to NS-EN 287. NTD personnel within penetrant testing (NSEN 473) and welding approval procedures (NS-EN ISO 15614-1).


Membership Certificate from Grønt Punkt:


TESS is a certified supplier through qualification systems such as Achilles Network MemberTransQ (transport companies), StartBANK (construction industry), UNCE (energy supply), and Magnet JQS.