Vainiomäki takes on the role having previously worked for Danske Bank, where she was country manager for Finland and also spent time as head of business banking in the country.
Prior to this, Vainiomäki spent time with Nordea and has also served on the boards of a number of organisations, including Finance Finland, Varma and Danske Bank Russia.
Vainiomäki’s appointment was approved at this week’s annual general meeting, where it was also announced that Olli-Pekka Kallasvuo will continue as chair of the board.
Veikkaus also confirmed that Christian Cedercreutz, Pekka Hurtola, Anne Larilahti, Juha Pantzar and Hanna Sievinen will continue as members.
Jukka Gustafsson will continue as chairman of Veikkaus’ supervisory board and Jani Mäkelä as deputy chairman.
Earlier this month, Veikkaus published its results for the financial year 2020, showing a total profit of €680.2m (£580.8m/$809.2m), down 32.6% on the previous year.