| Auto Makkonen Oy CVR 0649819-6 | OtherDeputy auditor | 2001 – 2022 | — | Active |
| Lihakax Oy CVR 0665871-9 | OtherAudit | 1998 – 2021 | — | Active |
| DigiCenter Oy CVR 0685831-5 | OtherDeputy auditor | 2001 – 2022 | — | Active |
| Maarakennus Kaivuu-Veljet Oy CVR 0732771-9 | OtherAudit | 1999 – 2023 | — | Active |
| Paulinka Oy CVR 0747426-8 | OtherAudit | 2000 – 2022 | — | Active |
| Warpa Oy CVR 0779829-7 | OtherAudit | 2000 – 2021 | — | Active |
| PJM-Rakennus Oy CVR 1010965-9 | OtherDeputy auditor | 1998 – 2022 | — | Active |
| Asennus Toivonen Oy CVR 1052057-9 | OtherAudit | 1998 – 2022 | — | Active |
| Karhusaaren Rakennuspalvelu Oy CVR 1076140-1 | OtherAudit | 2000 – 2022 | — | Active |
| Hammaslaboratorio Ceramic Oy CVR 1087511-8 | OtherAudit | 1998 – 2022 | — | Active |
| Media Comnatel OY CVR 1458355-0 | OtherAudit | 1999 – 2020 | — | Active |
| AH-Hifisystems Oy CVR 1464123-9 | OtherAudit | 2000 – 2019 | — | Active |
| Insinööritoimisto Taitosähkö Oy CVR 1561863-9 | OtherAudit | 1999 – 2019 | — | Active |
| Ltd Aquastyle Oy CVR 1598224-6 | OtherDeputy auditor | 2000 – 2022 | — | Active |
| Beckhoff Automation Oy CVR 1606412-1 | OtherDeputy auditor | 2010 – 2020 | — | Active |
| Konepalvelu Sohlman Oy CVR 1709840-3 | OtherDeputy auditor | 2001 – 2022 | — | Active |
| Kiinteistö Oy Pukinkallio CVR 1736725-5 | OtherAudit | 2002 – 2022 | — | Active |
| Onkikulma Oy CVR 1744252-6 | OtherAudit | 2002 – 2022 | — | Active |
| Almond Oy CVR 1761080-9 | OtherDeputy auditor | 2002 – 2021 | — | Active |