Welcome to the web site of Finnmast Oy. If you are interested in transmission line or telecommunication mast structures, you are in the right place!

Our Mission

Finnmast Oy is a consulting company in the field of steel structures offering services to the designers, manufacturers, contractors, component suppliers and users of transmission line and telecommunication mast structures. 

The company offers training and support in the use of the Wintrans computer programs developed in the company for the analysis and design of such structures and their components. The source codes of these programs are currently transferred to Bentley Systems, who will utilize the programs in the future product development.

Contact Information

Postal address
Mäyräpolku 11, 10160 Degerby, Finland
Electronic mail
General Information:
Send mail to with questions or comments about this web site.
Last modified: joulukuu 28, 2017