GSI – Gesellschaft für Schweißtechnik international mbH
SLV – Schweißtechnische Lehr- und Versuchsanstalten
Schweißtechnik - WeiterbildungschweißenSchweißtechnik Indrustrie

About us

GSI - Gesellschaft für Schweißtechnik International mbH was founded in 1999 by DVS - Deutscher Verband für Schweißen und verwandte Verfahren e.V.
It is an amalgamation of efficient Schweißtechnische Lehr- und Versuchsanstalten (SLVs) with 80 years of experience in joining and testing technology.
GSI is a non-profit-making limited-liability company which works neutrally for individuals, skilled-trade businesses, industrial companies, authorities and research bodies.
The aims of GSI are joint training and advice as well as technology transfer at home and abroad.


GSI is active in over 50 countries and employs over 600 people, including 150 engineers.
The annual services of GSI encompass more than:

20,000   Persons in training courses and examinations in welding
   1,500   Persons in training courses for welding coordinators
   6,000   Persons in advanced-training courses for managerial staff
   2,500   Plant authorisations/certifications
      600   Expert reports relating to materials and damage
      180   Research and development projects

GSI – Your Advantage

  • Complete spectrum of services in joining and testing technology
  • Regional and international presence
  • Representation of interests in all the important national and international bodies