| Kiinteistö Riipinen Oy CVR 0490284-5 | OtherAudit | 2022 – 2023 | — | Active |
| Koneselkä Oy CVR 0828329-5 | OtherAudit | 2020 – 2023 | — | Active |
| Pohjolan Rakennustaito Oy CVR 1015137-1 | OtherDeputy auditor | 2018 – 2024 | — | Active |
| Riipinen Restaurants Oy CVR 1446993-4 | OtherAudit | 2022 – 2023 | — | Active |
| Kiinteistö Oy UK-Pallas CVR 1706155-5 | OtherDeputy auditor | 2020 – 2024 | — | Active |
| Konesilta Oy CVR 1721838-0 | OtherAudit | 2020 – 2023 | — | Active |
| Asunto Oy Oulun Kaakkurinhuuto CVR 1873106-3 | OtherDeputy auditor | 2020 – 2024 | — | Active |
| Kids Company Oy CVR 2016120-7 | OtherAudit | 2021 – 2023 | — | Active |
| Asunto Oy Oulun Kaakkurinkoti CVR 2043088-4 | OtherDeputy auditor | 2018 – 2024 | — | Active |
| Kiinteistö Oy Oulun Autovoima CVR 2118020-7 | OtherDeputy auditor | 2018 – 2023 | — | Dissolved |
| GleSYS Finland Oy CVR 2261440-9 | OtherAudit | 2020 – 2023 | — | Active |
| Asunto Oy Oulun Keisarinkruunu CVR 2262431-6 | OtherDeputy auditor | 2018 – 2024 | — | Active |
| Kiinteistö Oy Kyllöset CVR 2327354-6 | OtherAudit | 2020 – 2023 | — | Active |
| Alfa eCare Oy CVR 2351407-1 | OtherAudit | 2022 – 2023 | — | Active |
| Joukhaisselän Tuulipuisto Oy CVR 2528873-3 | OtherAudit | 2018 – 2023 | — | Active |
| Saarenkylä Tuulipuisto Oy CVR 2536739-4 | OtherAudit | 2018 – 2023 | — | Active |
| Dinox Sport Oy CVR 2541313-5 | OtherAudit | 2022 – 2023 | — | Active |
| Oulun DataCenter Oy CVR 2542595-3 | OtherAudit | 2020 – 2023 | — | Active |
| Kuolavaara-Keulakkopään Tuulipuisto Oy CVR 2551489-2 | OtherAudit | 2018 – 2023 | — | Active |
| Asunto Oy Raahen Merisimpukka CVR 2551964-2 | OtherAudit | 2020 – 2021 | — | Active |
| wpd windmanager Suomi Oy CVR 2580057-3 | OtherAudit | 2018 – 2023 | — | Active |
| Merisier Oy CVR 2655132-9 | OtherAudit | 2021 – 2023 | — | Active |
| Jouttikallio Wind Oy CVR 2695582-5 | OtherAudit | 2018 – 2023 | — | Active |
| FP Lux Wind Primus Oy CVR 2721479-7 | OtherAudit | 2022 – 2023 | — | Active |
| FP Lux Wind Ratiperä Oy CVR 2789721-7 | OtherAudit | 2022 – 2023 | — | Active |
| Pohjolan Rakentajat Oy CVR 3088022-1 | OtherAudit | 2019 – 2021 | — | Active |
| S&RT Holding Oy CVR 3097265-2 | OtherAudit | 2019 – 2021 | — | Active |
| Hospitium Oy CVR 3192901-5 | OtherAudit | 2022 – 2023 | — | Active |
| VKL Huolto Oy CVR 3193834-1 | OtherAudit | 2021 – 2023 | — | Active |
