The last project and discussion Oja participated was organized by Jaana Erkkilä-Hill 7.-28.10.2022 at Galleria Artista (Luopumisen Aika -exhibition) and   8.10.2022 Artist Talk in Renlund house proceed by Nordiska Konstskolan Kokkola.

Earlier she participated discussions (and organized ) 29.5. and 11.6. 2021 at the exhibition place Myymälä2. As part of the In the Wind – Sensing the Location Now- group exhibition.

Marjatta oja works and co-operates with other artists. A few years ago she started co-operations with visual artists, researchers or producers Jukka Rusanen, Sara Kovamäki, Kristina Sedlerova-Villanen, Hanna Johansson, Tiina Erkintalo, Paula Salmela, Liisa Nassir-Tolonen, Asko Keränen, Egle Oddo,  Riikka Kevo, Mari Martin, Leena Valkeapää and Jaana Erkkilä-Hill. And, further more, she has been running Local Energy projects together with her co-operators https://web.facebook.com/LahienergiaLocalenergy/ . She is a member of AV-arkki, the Distribution Centre for Finnish Media Art, http://www.av-arkki.fi/en/about-av-arkki /  The Association of Finnish Sculptors https://sculptors.fi/en/union/ and the Collective Intelligence- group http://www.collectiveintelligence.fi. And her the latest active membership started 2022 in artist house organization, Ars Longa-talon taiteilijat ry.

Most recently she worked with Mari Martin in artistic research project performance/presentation (October 2022) and with Leena Valkeapää & Jaana Erkkilä-Hill in their new group and art/reseach project 2022.