| Vahake Oy CVR 0196746-7 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| Kiinteistö Oy Krambacka CVR 0556096-3 | OtherAudit | 1999 – 2019 | — | Active |
| Kiinteistö Oy Kavallinmäki 15 CVR 0770089-4 | OtherDeputy auditor | 2009 – 2019 | — | Active |
| Rolldynamics Engineering Oy CVR 0968060-4 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| Net Force Oy CVR 1029298-3 | OtherAudit | 1998 – 2019 | — | Active |
| Hot Net Oy CVR 1071064-7 | OtherAudit | 1999 – 2019 | — | Active |
| Uudenmaan Rak-Tek Oy CVR 1090631-6 | OtherDeputy auditor | 1999 – 2019 | — | Dissolved |
| Brantini Oy CVR 1656412-6 | OtherAudit | 2001 – 2019 | — | Active |
| Hammastikkuri Oy CVR 1758534-0 | OtherAudit | 2002 – 2019 | — | Active |
| Denton Oy CVR 1831763-9 | OtherDeputy auditor | 2003 – 2019 | — | Active |
| J. Tolvanen Invest Oy CVR 1839235-6 | OtherDeputy auditor | 2003 – 2019 | — | Active |
| Aarni Group Oy CVR 1870504-1 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| LVI JANI OY CVR 1901952-9 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| Kehityspalvelut Tillman Oy CVR 1926069-7 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| R/H Corporation Oy CVR 1953720-3 | OtherDeputy auditor | 2005 – 2019 | — | Active |
| Osuva Finland Oy CVR 1954633-7 | OtherDeputy auditor | 2005 – 2019 | — | Active |
| uvCorp Oy CVR 1972090-5 | OtherAudit | 2005 – 2019 | — | Active |
| Kiinteistö Oy Vantaan Mutka-kiinteistöt CVR 1972091-3 | OtherAudit | 2005 – 2019 | — | Active |
| Parohoito Oy CVR 2028021-4 | OtherDeputy auditor | 2006 – 2019 | — | Active |
| Joutsen Osakkeet Oy CVR 2078948-3 | OtherDeputy auditor | 2010 – 2019 | — | Active |
| HONG DA OY CVR 2132954-2 | OtherAudit | 2007 – 2019 | — | Active |
| Ambiot Oy CVR 2401124-9 | OtherDeputy auditor | 2015 – 2019 | — | Active |
| Ambiot Yhtiöt Oy CVR 2401125-7 | OtherDeputy auditor | 2015 – 2019 | — | Active |
