The publishing house of Postimees Grupp started business in 2015 as part of AS Ühinenud Ajalehed and has been part of Postimees Grupp since 2016.

Post Factum publishes the magazine 60+ and the newspaper MaaElu. In book publishing the publishing house of Postimees Grupp uses the name Post Factum. The publishing house organizes cooperation projects to publish special magazine editions and book series.

Post Factum publishes both original Estonian literature and books translated from other languages. Its range of topics is not limited and the books published by it include fiction and non-fiction for children and adults alike.

The manager of the publishing house is Signe Siim and its staff includes editors, a project manager, layout designers and language editors.