| Ojan Autosähkö Oy CVR 0186834-6 | OtherAudit | 2012 – 2023 | — | Active |
| Kauppapuutarha Kukkiva Kunnas Oy CVR 0703492-4 | OtherAudit | 2015 – 2020 | — | Active |
| Rancap Oy CVR 0916320-1 | OtherAudit | 2017 – 2019 | — | Active |
| Saumaset Oy CVR 0952019-2 | OtherAudit | 2008 – 2023 | — | Active |
| Tilausliikenne Olli Oy CVR 0985235-7 | OtherAudit | 2014 – 2022 | — | Active |
| Alltime Vantaa Oy CVR 1008590-9 | OtherAudit | 2014 – 2021 | — | Dissolved |
| Jap-Myynti Oy CVR 1724336-7 | OtherAudit | 2015 – 2020 | — | Active |
| Markkinointi Reijo Liljeblad Oy CVR 1737548-2 | OtherAudit | 2011 – 2020 | — | Active |
| Karmon Oy CVR 1809687-2 | OtherAudit | 2005 – 2019 | — | Active |
| Alltime Group Oy CVR 2035088-4 | OtherAudit | 2017 – 2021 | — | Active |
| P-S Invapalvelu Oy CVR 2064326-5 | OtherAudit | 2015 – 2021 | — | Active |
| Finelty Properties Oy CVR 2120651-8 | OtherAudit | 2014 – 2021 | — | Dissolved |
| Teijo Leskelä Oy CVR 2122320-3 | OtherAudit | 2007 – 2022 | — | Active |
| Frandi Oy CVR 2131535-1 | OtherDeputy auditor | 2017 – 2022 | — | Active |
| Ficeltech Oy CVR 2135759-4 | OtherAudit | 2007 – 2022 | — | Active |
| Jukka Korpelin Oy CVR 2135910-0 | OtherAudit | 2007 – 2022 | — | Active |
| Pahrak Oy CVR 2188254-0 | OtherAudit | 2009 – 2022 | — | Active |
| Rakennuspalvelu Sami Laakso Oy CVR 2199157-9 | OtherAudit | 2008 – 2020 | — | Active |
| Maxivo Oy CVR 2218733-9 | OtherAudit | 2010 – 2020 | — | Active |
| Kiimingin Alakylän Viemäriosuuskunta CVR 2220382-9 | OtherAudit | 2009 – 2021 | — | Active |
| Oulun Vaaka Oy CVR 2259755-7 | OtherAudit | 2009 – 2023 | — | Dissolved |
| Remontti-Hehku Osuuskunta CVR 2269708-0 | OtherAudit | 2009 – 2022 | — | Active |
| POHJOIS-SUOMEN RAKENNUS JA SANEERAUS OY CVR 2289180-1 | OtherAudit | 2009 – 2023 | — | Active |
| Mikko Maikkula Oy CVR 2308349-4 | OtherAudit | 2010 – 2019 | — | Active |
| Lokki Henkilöstöpalvelut Pohjois-Suomi Oy CVR 2314685-4 | OtherAudit | 2012 – 2021 | — | Dissolved |
| HT-Maalaus Oy CVR 2381629-9 | OtherAudit | 2015 – 2020 | — | Active |
| Jaara-Kiinteistöt Oy CVR 2381792-9 | OtherAudit | 2011 – 2020 | — | Active |
| RHM-Koneurakointi Oy CVR 2403328-8 | OtherAudit | 2011 – 2019 | — | Active |
| Kolliveikot Oy CVR 2432838-5 | OtherAudit | 2011 – 2020 | — | Active |
| Kuntomo Oy CVR 2507500-9 | OtherAudit | 2016 – 2019 | — | Active |
| Oulun Jarruhuolto Oy CVR 2561095-6 | OtherAudit | 2013 – 2020 | — | Dissolved |
| Konsulttitoimisto Proximatum Oy CVR 2577475-8 | OtherAudit | 2013 – 2020 | — | Active |
| Satusiipi Päiväkodit Oy CVR 2585007-9 | OtherAudit | 2013 – 2022 | — | Active |
| Televerkkopalvelut Seppo Marttila Oy CVR 2591338-3 | OtherAudit | 2014 – 2020 | — | Active |
| Nordvital Import Oy CVR 2621296-8 | OtherAudit | 2014 – 2022 | — | Active |
| Pohjois-Suomen Maalaus ja Tasoitepalvelu Oy CVR 2630337-6 | OtherAudit | 2014 – 2020 | — | Active |
| Insinööritoimisto Intova Oy CVR 2630844-1 | OtherAudit | 2014 – 2022 | — | Active |
| SCG Specialist Contractors' Group Oy CVR 2657574-2 | OtherAudit | 2015 – 2022 | — | Active |
| Invera Oy CVR 2668672-5 | OtherAudit | 2015 – 2021 | — | Active |
| Pekka Kantola Oy CVR 2678978-3 | OtherAudit | 2015 – 2022 | — | Active |
| Onlog Oy CVR 2695122-6 | OtherAudit | 2015 – 2023 | — | Active |
| HIRSI JA RAKENNUS SIKLANDER OY CVR 2716655-3 | OtherAudit | 2015 – 2020 | — | Active |
| Kiinteistö Oy Kiinteistösepät CVR 2717122-1 | OtherAudit | 2015 – 2022 | — | Active |
| Venturental Oy CVR 2755813-5 | OtherAudit | 2016 – 2022 | — | Active |
| RAMAGO Oy CVR 2881663-4 | OtherAudit | 2018 – 2022 | — | Active |
| Inter Cab Oy CVR 2933899-6 | OtherAudit | 2018 – 2023 | — | Active |
| Alltime Suomi Oy CVR 2973031-4 | OtherAudit | 2019 – 2021 | — | Active |
| Alltime Helsinki Oy CVR 3016247-3 | OtherAudit | 2019 – 2021 | — | Active |