| 1 | Kajaanin kaupungin koulutusliikelaitos | €40.1M | 350 | 60 |
| 2 | Loiste yhtiöt | €39.2M | 125 | 60 |
| 3 | Ekosähkö | €39.2M | 125 | 60 |
| 4 | LUMI supercomputer | €33.1M | 350 | 60 |
| 5 | Insinööritoimisto Mäkeläinen Oy | €24.8M | 125 | 60 |
| 6 | MS Monitoring Systems | €23.7M | 125 | 60 |
| 7 | kainuun etu oy | €23.0M | 30 | 60 |
| 8 | Renforsin Ranta business park | €21.8M | 350 | 60 |
| 9 | sakela rakennus oy | €18.9M | 125 | 60 |
| 10 | Clean and Safe Oy | €7.8M | 125 | 50 |
| 11 | terasasennus mankinen oy | €6.8M | 30 | 50 |
| 12 | Kainuun TE-toimisto | €6.3M | 125 | 50 |
| 13 | Power Mining | €5.9M | 30 | 50 |
| 14 | Vumos Oy | €5.9M | 30 | 50 |
| 15 | Tieto-Oskari Oy | €5.7M | 30 | 50 |
| 16 | Symbicon Ltd | €5.7M | 30 | 50 |
| 17 | Suomalainen Lehtipaino Oy | €5.5M | 30 | 50 |
| 18 | uusi ikkunat group oy | €4.5M | 30 | 50 |
| 19 | mestarimaalaus seppänen & toikka oy | €4.5M | 30 | 50 |
| 20 | Kajaani University of Applied Sciences (KAMK) | €4.1M | 350 | 50 |
| 21 | Immobile Games | €3.9M | 30 | 50 |
| 22 | Black Smoke Studios Oy | €3.9M | 30 | 50 |
| 23 | Kajave | €3.8M | 30 | 50 |
| 24 | Trysil RMM Oy | €3.7M | 30 | 50 |
| 25 | Edukai Oy | €3.4M | 30 | 50 |
| 26 | Virtual Frontiers | €3.4M | 30 | 50 |
| 27 | Työnohjauspalvelu Helmi | €3.3M | 5 | 50 |
| 28 | Kitka Games Oy
Computer programming activities | €3.3M | -- | 50 |
| 29 | Tietohippu Oy
Computer programming activities | €3.3M | -- | 50 |
| 30 | TevCode Oy
Computer programming activities | €3.3M | -- | 50 |
| 31 | Applirent Oy
Computer programming activities | €3.3M | -- | 50 |
| 32 | Kaartum Oy
Computer programming activities | €3.3M | -- | 50 |
| 33 | Wood for Health project | €3.1M | 30 | 50 |
| 34 | International Info - City of Kajaani | €3.0M | 30 | 50 |
| 35 | Kajaanin Lukko Oy | €3.0M | 5 | 50 |
| 36 | Herman IT | €2.8M | 30 | 50 |
| 37 | Ebsolut Oy | €2.8M | 30 | 50 |
| 38 | Exens Development Oy | €2.7M | 30 | 50 |
| 39 | Sirnikka Oy
Logging | €2.3M | -- | 65 |
| 40 | Faasti Oy
Non-specialised wholesale trade | €2.1M | -- | 50 |
| 41 | Planray | €1.8M | 5 | 50 |
| 42 | Ase-ja optiikkahuolto H.Korhonen OY
Retail sale of other new goods n.e.c. | €1.7M | -- | 65 |
| 43 | Prometec Oy | €1.6M | 5 | 50 |
| 44 | Sunteekki Oy
Other human health activities n.e.c. | €1.6M | -- | 65 |
| 45 | Millery Oy | €1.2M | 5 | 50 |
| 46 | Telakan Auto Oy | €990K | 5 | 40 |
| 47 | arstec oy | €990K | 5 | 40 |
| 48 | Capitis Oy | €950K | 5 | 40 |
| 49 | Kajaanin Viestitalo Oy
Rental and operating of own or leased non-resident | €946K | -- | 65 |
| 50 | Rintti | €917K | 5 | 40 |
| 51 | Pulse247 Oy | €908K | 30 | 40 |
| 52 | Ruskatek Oy | €851K | 5 | 40 |
| 53 | Lieke Sovellukset | €851K | 5 | 40 |
| 54 | Tool4pro - Fincet | €851K | 5 | 40 |
| 55 | 73Health | €851K | 5 | 40 |
| 56 | risto lappeteläinen oy | €834K | 5 | 40 |
| 57 | Kajaanin Hokki | €688K | 30 | 40 |
| 58 | Kouta Media | €649K | 30 | 40 |
| 59 | Irrelevant Games Ltd | €644K | 5 | 40 |
| 60 | Linna Games | €644K | 5 | 40 |
| 61 | TJR Games Oy | €644K | 5 | 40 |
| 62 | Northern Game Summit | €644K | 5 | 40 |
| 63 | Fordell Nosto- ja Kuljetuspalvelut Oy
Freight transport by road | €640K | -- | 40 |
| 64 | Solid Rock Oy | €612K | 5 | 40 |
| 65 | Stars of the North | €572K | 5 | 40 |
| 66 | Kajaanitech Ny | €475K | 5 | 40 |
| 67 | Ceverte Oy | €473K | 5 | 40 |
| 68 | IdeaVoima Oy | €473K | 5 | 40 |
| 69 | TILMA-hanke | €429K | 5 | 40 |
| 70 | PhoneFixers | €408K | 1 | 40 |
| 71 | kamk gamefest | €400K | 30 | 40 |
| 72 | KAMK Esports Club | €355K | 30 | 40 |
| 73 | conffi oy | €353K | 5 | 40 |
| 74 | digitice finland | €353K | 5 | 40 |
| 75 | kajaanitech.fi | €353K | 5 | 40 |
| 76 | skillege | €353K | 5 | 40 |
| 77 | Icona | €331K | 5 | 40 |
| 78 | Kajaanin Nuorkauppakamari - JCI Kajaani | €269K | 30 | 40 |
| 79 | Sentinam Oy
Medical specialists activities | €256K | -- | 65 |
| 80 | chi chi restaurants | €204K | 5 | 40 |
| 81 | Talousvirta Oy | €183K | 5 | 40 |
| 82 | Idea Nature Oy | €165K | 5 | 40 |
| 83 | polygon oasis oy | €141K | 5 | 40 |
| 84 | citius group oy | €141K | 5 | 40 |
| 85 | 52 Degrees North | €136K | 5 | 40 |
| 86 | Työnohjaus ja konsultointi Laakkonen | €136K | 5 | 40 |
| 87 | Ari Kananen Consulting Oy | €136K | 5 | 40 |
| 88 | CSE - Making an impact that moves! | €115K | 30 | 40 |
| 89 | Bit Media Oy | €108K | 5 | 40 |
| 90 | Fade Creative | €108K | 5 | 40 |
| 91 | alunen | €93K | 5 | 30 |
| 92 | hyvinvointi- ja koulutuspalvelu aino | €93K | 5 | 30 |
| 93 | right on me -juuri minulle | €93K | 5 | 30 |
| 94 | imagon as | €92K | 5 | 30 |
| 95 | kouta russia oy | €92K | 5 | 30 |
| 96 | krow digital | €92K | 5 | 30 |
| 97 | pr & partners oy | €53K | 5 | 30 |
| 98 | myynninkasvattajat | €53K | 5 | 30 |
| 99 | some-taituri | €53K | 5 | 30 |
| 100 | koodisto software oy | €40K | 5 | 30 |