| 1 | Arachas Donegal & Sligo | €128.6M | 350 | 70 | B |
| 2 | Kelly's Centra and Diner | €51.0M | 125 | 60 | C+ |
| 3 | CoLab North West | €40.1M | 350 | 60 | C+ |
| 4 | the kernan group | €32.5M | 350 | 60 | C+ |
| 5 | Nvolve | €21.3M | 125 | 60 | C+ |
| 6 | McGettigans Hotel Letterkenny | €20.5M | 125 | 60 | C+ |
| 7 | DPPS Contracts Ltd | €18.9M | 125 | 60 | C+ |
| 8 | Magees Pharmacy Donegal | €18.0M | 125 | 60 | C+ |
| 9 | pocketheroes ltd | €17.0M | 125 | 60 | C+ |
| 10 | Sprint Educational Supplies | €12.2M | 30 | 60 | C+ |
| 11 | People 1st Donegal | €10.7M | 125 | 60 | C+ |
| 12 | onbenchmark.com | €8.8M | 125 | 50 | C |
| 13 | Tailored Facility Solitions (TFS Ireland) | €7.8M | 125 | 50 | C |
| 14 | Smart Renewable Energy Ltd. | €6.8M | 30 | 50 | C |
| 15 | Lottie Dolls | €6.6M | 30 | 50 | C |
| 16 | micad security | €6.4M | 125 | 50 | C |
| 17 | John F. Loughrey Financial Services | €6.3M | 30 | 50 | C |
| 18 | AutoFastFit | €5.9M | 30 | 50 | C |
| 19 | Divers Hyundai Garage Donegal | €5.9M | 30 | 50 | C |
| 20 | Andrew Stewart Autohaus Ltd t/a Mulroy | €5.9M | 30 | 50 | C |
| 21 | JJ Reid Motors | €5.7M | 30 | 50 | C |
| 22 | auto fast fit | €5.7M | 30 | 50 | C |
| 23 | O' Hara & Harrison Electrical Contractors | €5.7M | 30 | 50 | C |
| 24 | Euroflex Packaging Ltd | €5.5M | 30 | 50 | C |
| 25 | Gillcon Group | €4.5M | 30 | 50 | C |
| 26 | Dorrian Construction Ltd. | €4.5M | 30 | 50 | C |
| 27 | Northwest Electrical Services | €4.5M | 30 | 50 | C |
| 28 | MDT Construction, Mc Dermott & Trearty Ltd | €4.5M | 30 | 50 | C |
| 29 | Gillespie Quarries | €4.5M | 30 | 50 | C |
| 30 | ATUDonegalPgRS | €3.4M | 30 | 50 | C |
| 31 | Donegal Local Development Company (DLDC) | €3.3M | 350 | 50 | C |
| 32 | Azucca Software Solutions | €2.8M | 30 | 50 | C |
| 33 | Tech Divine Services | €2.8M | 30 | 50 | C |
| 34 | SamSso Consultancy LTD | €2.8M | 30 | 50 | C |
| 35 | Webtown Limited | €2.7M | 30 | 50 | C |
| 36 | ATU Robotics Donegal | €2.7M | 30 | 50 | C |
| 37 | juice plus+ ireland | €2.3M | 125 | 50 | C |
| 38 | simply crafted | €2.1M | 5 | 50 | C |
| 39 | srs retail systems | €2.1M | 5 | 50 | C |
| 40 | green vehicle recycling ltd | €2.1M | 5 | 50 | C |
| 41 | Ledex Lighting Ltd | €2.0M | 5 | 50 | C |
| 42 | Kahm Sustainable Swimwear | €2.0M | 5 | 50 | C |
| 43 | Bolt-on Industrial Trade Supplies | €2.0M | 5 | 50 | C |
| 44 | Format Computers | €2.0M | 5 | 50 | C |
| 45 | Tinneys Toys Ltd | €2.0M | 5 | 50 | C |
| 46 | MASAALON | €2.0M | 5 | 50 | C |
| 47 | Ipsum Consulting Engineers Ltd | €2.0M | 30 | 50 | C |
| 48 | E-tech Energy Ltd | €1.6M | 5 | 50 | C |
| 49 | Saint Eunan's College | €1.5M | 125 | 50 | C |
| 50 | GrassRoutes Electric Bike Adventures | €1.4M | 5 | 50 | C |
| 51 | foy & company - foys toymaster | €1.3M | 5 | 50 | C |
| 52 | Ireland Foods Trading | €1.2M | 5 | 50 | C |
| 53 | The Lemon Tree Restaurant, Letterkenny | €1.2M | 30 | 50 | C |
| 54 | haughey joinery limited | €1.1M | 5 | 50 | C |
| 55 | dessie shiels | €1.1M | 5 | 50 | C |
| 56 | S MacRory & Co. | €1.1M | 30 | 50 | C |
| 57 | Advice First Financial Services Ltd | €1.1M | 5 | 50 | C |
| 58 | McGeough Financial Consultants Limited | €1.1M | 5 | 50 | C |
| 59 | Engineers Ireland Donegal Region | €990K | 5 | 40 | D |
| 60 | Sherpha --- Helping and supporting anyone about to or considering starting their own business | €988K | 30 | 40 | D |
| 61 | International Test Technologies Inc. | €950K | 5 | 40 | D |
| 62 | rainbow theatre group | €929K | 5 | 40 | D |
| 63 | Donegal Digital | €908K | 30 | 40 | D |
| 64 | Motarme | €851K | 5 | 40 | D |
| 65 | WebbyDev | €851K | 5 | 40 | D |
| 66 | Soflo | €851K | 5 | 40 | D |
| 67 | FireCloud365 | €851K | 5 | 40 | D |
| 68 | minding you | €834K | 5 | 40 | D |
| 69 | north star speech & language therapy | €834K | 5 | 40 | D |
| 70 | ballyraine park health centre | €834K | 5 | 40 | D |
| 71 | down below physio | €834K | 5 | 40 | D |
| 72 | Cafe Sonder | €821K | 5 | 40 | D |
| 73 | donegal sport hub | €811K | 5 | 40 | D |
| 74 | DQS Consultants | €755K | 5 | 40 | D |
| 75 | ballyraine contracts ltd. | €755K | 5 | 40 | D |
| 76 | harkin electrical | €755K | 5 | 40 | D |
| 77 | Donegal Fire Protection Services | €755K | 5 | 40 | D |
| 78 | Sendmode Mobile Marketing Solutions | €649K | 30 | 40 | D |
| 79 | KeyWord Room | €649K | 30 | 40 | D |
| 80 | JKS Design | €627K | 5 | 40 | D |
| 81 | Dermot Donohue Photography | €627K | 5 | 40 | D |
| 82 | eb graphix | €627K | 5 | 40 | D |
| 83 | englishclassroom.ie | €572K | 5 | 40 | D |
| 84 | xyMaths | €572K | 5 | 40 | D |
| 85 | park school for early learning | €572K | 5 | 40 | D |
| 86 | alison egan coaching | €572K | 5 | 40 | D |
| 87 | MeetingsPal | €548K | 5 | 40 | D |
| 88 | PM EVENT SOLUTIONS | €548K | 5 | 40 | D |
| 89 | Pure Linen | €519K | 5 | 40 | D |
| 90 | lmc fire safety | €503K | 5 | 40 | D |
| 91 | Career Wear Ltd. | €495K | 5 | 40 | D |
| 92 | IceWolf Technology | €473K | 5 | 40 | D |
| 93 | Alpha EPOS Solutions Ireland | €473K | 5 | 40 | D |
| 94 | DIY Websties | €473K | 5 | 40 | D |
| 95 | Tiomantas Software Testing | €473K | 5 | 40 | D |
| 96 | Think.Design.Automate | €473K | 5 | 40 | D |
| 97 | Rethink Money - Digital Financial Advisor | €473K | 5 | 40 | D |
| 98 | hillside kitchens | €465K | 5 | 40 | D |
| 99 | amazonas outdoor store | €465K | 5 | 40 | D |
| 100 | garry office supplies | €465K | 5 | 40 | D |