Volvo Tractors was sold up by Valmet.
Volvo is a swedish brand and merged with Bolinder-Munktells years ago.
Tractors had been named Volvo-BM then. After takeover, the Volvo brand dissapeared and was completly Valmet then
Valtra is from Finland and Valmet group has different businesses. They had been building Skidders and Forwarders too, other part of Valmet was making machinery for paperindusrty.
Valtra tractors have the Sisu-Diesel, also a company from Finland, part of Valmet Industries.
SisuDiesel - Company Overview
A few Years ago, Valmet sold the tractor activities to AGCO.
The forestal machinery is Komatsu, now. The papertechnology is part of Metso group. Not sure, but Metso is a kind of farmers Coop in SF.