| Asunto Oy Lappeenrannan Saarenkatu 3 - 5 CVR 0225910-4 | OtherDeputy auditor | 2013 – 2019 | — | Active |
| BHP Trans Oy CVR 0241406-3 | OtherDeputy auditor | 2004 – 2022 | — | Active |
| Puutavaraliike Huomo Oy CVR 0282798-4 | OtherDeputy auditor | 2005 – 2025 | — | Active |
| Malmi Capital & Consulting Oy CVR 0349856-1 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| Veijo Kasanen Oy CVR 0498615-3 | OtherDeputy auditor | 2004 – 2020 | — | Active |
| Karelia-Trucking Oy CVR 0676519-4 | OtherDeputy auditor | 2005 – 2019 | — | Active |
| Jarmo Ryynänen Oy CVR 0728305-8 | OtherDeputy auditor | 2004 – 2025 | — | Active |
| East Oil Oy CVR 0842552-1 | OtherDeputy auditor | 2004 – 2019 | — | Active |
| Web-Cat Oy CVR 0936215-5 | OtherAudit | 2001 – 2025 | — | Active |
| Jukka & Jaan Lappeenranta Oy CVR 0945399-7 | OtherDeputy auditor | 2004 – 2019 | — | Dissolved |
| Aku-Trans Oy CVR 1098204-4 | OtherDeputy auditor | 2003 – 2026 | — | Active |
| T. Kiljunen Kiinteistöt Oy CVR 1562408-6 | OtherDeputy auditor | 2002 – 2019 | — | Active |
| Transsinkko Oy CVR 1592326-2 | OtherDeputy auditor | 2005 – 2019 | — | Active |
| Asunto Oy Imatran Kaivo CVR 1712384-0 | OtherDeputy auditor | 2001 – 2025 | — | Active |
| Keskinäinen Kiinteistö Oy Ampperi CVR 1712475-5 | OtherDeputy auditor | 2001 – 2023 | — | Active |
| SLT Promotions Oy CVR 1767747-2 | OtherDeputy auditor | 2002 – 2023 | — | Active |
| Saimaan Optiikka Oy CVR 1801063-7 | OtherDeputy auditor | 2002 – 2019 | — | Active |
| As Oy Lappeenrannan Juvakankatu 15 CVR 1888698-9 | OtherDeputy auditor | 2004 – 2026 | — | Active |
| Kiinteistö Oy Sotkamon Pieni-Leinola CVR 1900601-5 | OtherDeputy auditor | 2004 – 2021 | — | Active |
| Asunto Oy Lappeenrannan Rakuunasauna CVR 1937241-0 | OtherDeputy auditor | 2005 – 2025 | — | Active |
| Leirin Hoivakoti Oy CVR 1969289-5 | OtherDeputy auditor | 2005 – 2023 | — | Active |
| JII-Service Oy CVR 2014199-4 | OtherDeputy auditor | 2006 – 2023 | — | Active |
