| 1 | Reykjavik Excursions | 100 | 6/6 | | 16% |
| 2 | Arctic Adventures | 83 | 5/6 | | 13% |
| 3 | Troll Expeditions | 75 | 5/6 | | 12% |
| 4 | Nordic Visitor | 75 | 5/6 | | 12% |
| 5 | Hidden Iceland | 67 | 5/6 | | 12% |
| 6 | NiceTravel | 67 | 4/6 | | 10% |
| 7 | Guide to Iceland | 50 | 4/6 | | 7% |
| 8 | Icelandic Mountain Guides | 42 | 3/6 | | 5% |
| 9 | BusTravel Iceland | 33 | 2/6 | | 6% |
| 10 | Intrepid Travel | 25 | 2/6 | | 3% |
| 11 | Icelandia | 17 | 1/6 | | 2% |
| 12 | Katlatrack | 17 | 1/6 | | 3% |
| 13 | CIE Tours | 17 | 1/6 | | 2% |
| 14 | G Adventures | 17 | 1/6 | | 2% |
| 15 | Elding | 17 | 1/6 | | 2% |
| 16 | Gentle Giants | 17 | 1/6 | | 2% |
| 17 | CityWalk Reykjavik | 17 | 1/6 | | 1% |
| 18 | GJ Travel | 17 | 1/6 | | 1% |
| 19 | Snaeland Travel | 17 | 1/6 | | 1% |
| 20 | Gray Line Iceland | 8 | 1/6 | | <1% |