Sales and Administration

Janne Hirsimäki

Managing Director, CEO
+358 50 408 8522

Jari Häkli

+358 400 732 141

Jari Sirén

Production, Sales & Maintenance
+358 44 792 9402

Lasse Vesala

Financial Manager
+358 50 576 2758

Mikko Vesala

Chairman of the board
+358 400 470 467


R&D and Technical support

Vesa-Matti Lamminen

Head of R&D
+358 44 792 8795

Arttu Väisälä

R&D Engineer
+358 44 777 6103



General Contact



H. Vesala Oy
Company Reg No 0200859-1
Peräsimentie 1
03100 Nummela
+358 44 200 2005


We are using e-invoicing and hope be billing primarily in electronic form the future.
If you are still using paper format invoices, you can send them to:

H. Vesala Oy 
Peräsimentie 1 

VAT-number: FI02008591

e-invoicing operator code: 003702008591 
e-invoicing operator : Maventa (003721291126) 

If electronic invoicing is not possible, please send PDF invoices to the following email:
Please note that PDF invoices must contain our postal address.

Contact Form

Should you require User Manuals, please indicate the product type (eg MPL6-33), serial number (usually behind the case, eg X10-A123456), any software version (eg X1.1A, can appear on the display during startup or be  on label in the battery compartment) and the language you require.

Contact us



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