The union is warning of a strike that would begin on April 1.
1,200 workers are covered by the agreement, which runs out on March 31.
The possible strike, which would would begin on April 1 and end on April 24, affects employees at Suomen Asiakastieto, Lindorff, Intrum Justitia and OK-Perintä.
A large section of Finnish business would be affected by the strike, according to the union, as the workers involved deal with credit verification and debt collection.
According to the union, no new talks with the employers’ side have been scheduled.
