A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1
| IBM (13) | ICA.no (33) |
| IDEA Consultants AS (20) | IKM Consultants AS (40) |
| IKM Consultants AS, Stavanger (40) | Ingenior Compagniet (62) |
| Ingenior Compagniet AS (67) | INMA (8) |
| Inmeta Crayon ASA (4) | Innovasjon Norge (6) |
| Institutt for Organisasjonsutvikling (13) | Intelecom Group AS (5) |
| InterMedia AS (6) | Iro & Partners (6) |
| ISG Personalmanagement GmbH (15) | ISS Catering (4) |
| ISS Personalhuset, Alesund (24) | ISS Personalhuset, Bergen (12) |
| ISS Personalhuset, Bodo (19) | ISS Personalhuset, Drammen (4) |
| ISS Personalhuset, Haugesund (6) | ISS Personalhuset, HRC Personalhuset Maritime (4) |
| ISS Personalhuset, Kristiansand (7) | ISS Personalhuset, Oslo (4) |
| ISS Personalhuset, Stavanger (33) | IVENTA Management Consulting (7) |