| Oulun Kalustehalli Oy CVR 0187067-3 | OtherDeputy auditor | 2003 – 2025 | — | Active |
| Kiinteistö Oy Myllyojan Ostoskeskus CVR 0188209-2 | OtherDeputy auditor | 2010 – 2023 | — | Active |
| Asunto Oy Koulukatu 41 CVR 0215046-7 | OtherDeputy auditor | 2006 – 2019 | — | Active |
| Kiinteistö Oy Kempeleen Liiketori CVR 0665373-1 | OtherDeputy auditor | 2005 – 2025 | — | Active |
| Laaksojen Rauta Oy CVR 0771705-5 | OtherDeputy auditor | 2003 – 2021 | — | Active |
| Tunot Oy CVR 0904534-4 | OtherDeputy auditor | 2003 – 2025 | — | Active |
| ABA Service Oy CVR 0957750-0 | OtherDeputy auditor | 2000 – 2019 | — | Active |
| Livepaletti Oy CVR 0975582-1 | OtherDeputy auditor | 2007 – 2020 | — | Active |
| Nordfasti Oy CVR 1049206-1 | OtherDeputy auditor | 2004 – 2025 | — | Active |
| Kiinteistö Oy Pulkkilan Kihonkulma CVR 1589531-0 | OtherAudit | 2003 – 2023 | — | Active |
| Koneurakointi Sipola Oy CVR 1727352-3 | OtherDeputy auditor | 2004 – 2022 | — | Active |
| Mainostoimisto Feenix Oy CVR 1727834-0 | OtherAudit | 2001 – 2022 | — | Dissolved |
| Yritys- ja henkilöstöpalvelu Suopursu Oy CVR 1769567-0 | OtherDeputy auditor | 2009 – 2019 | — | Active |
| Oulun Remontti Idea Oy CVR 1984199-3 | OtherAudit | 2005 – 2020 | — | Active |
| HJ Solutions Oy CVR 2119487-9 | OtherAudit | 2007 – 2024 | — | Active |
