UPM:
upm.fi/kesa
Walki:
https://www.walki.com/aboutus/careers/summerjobs2021.html
BillerudKorsnäs:
https://www.billerudkorsnas.com/career/work-with-us/summer-jobs/summer-jobs?location=Finland+-+Pietarsaari
Alholmens Kraft:
https://www.alholmenskraft.com/fi/company/recruit/summerjob
