An engineering office and a welding contractor

InstMan Oy is an engineering office and a welding contractor specialising in industrial projects, with an honest and straightforward operating policy.

Our first class services are based on extensive experience acquired from a multitude of projects. The high quality of our services is ensured by our long-term experience and industrial process expertise. A significant number of major industrial enterprises rely on our services.

Operational transparency is the only right way to successfully complete projects, time and time again.”

Mikko Lähteelä, CEO

We operate everywhere in Finland

Our main business sectors cover welding contracts, industrial installations supervision, project coordination and expert services. We also participate in our clients’ process development and work planning as required. Our mission is to be a strong and reliable partner. Trust and results are achieved through cooperation with the client.


Our clients are medium and large industry players such as Borealis Polymers Oy, Neste Corporation and Stora Enso Oyj.


Hydrogen plant maintenance outage welding work

Neste Oyj
JET A-1 loading terminal piping and equipment installation

Borealis Polymers Oy
Supervision of TA-2017 maintenance shutdown

Borealis Polymers Oy
Maintenance Work Planning 2015-

Enersense International Oy
Wärtsilä LNG terminal project in Tornio
Pipe and Equipment Installation Supervision 10 / 2016-4 / 2019

Contact us

Mikko Lähteelä

CEO, Technical Director
Puh. +358 40 1657 222

Tommi Pakarinen

Project Manager
Puh. +358 40 901 0029



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© 2024 InstMan – Putki- ja laiteasennukset, teollisuuden asennusvalonta. Design MURRA