| A-Supply A/S | 9990 | Skagen |
| A-Z-Trading | 6400 | Sønderborg |
| A/S Julius Nielsen & Søn | 2610 | Rødovre |
| ABB A/S | 2750 | Ballerup |
| Acies A/S | 8600 | Silkeborg |
| Adserballe & Knudsen A/S | 3520 | Farum |
| AirTjek ApS | 8751 | Gedved |
| Akzo Nobel Industrial Coatings A/S | 7430 | Ikast |
| Albe Emballage A/S | 2640 | Hedehusene |
| Alcadon ApS | 2990 | Nivå |
| Alfix A/S | 6000 | Kolding |
| All Remove Danmark A/S | 2600 | Glostrup |
| Alumentdk | 6000 | Kolding |
| Alux A/S | 8600 | Silkeborg |
| Annoncørbetalt indhold | 9220 | Aalborg Ø |
| Anton Knudsen Egtved A/S | 6040 | Egtved |
| Areco Profiles A/S | 9575 | Terndrup |
| ARKAS A/S | 8763 | Rask Mølle |
| Armatec A/S | 2600 | Glostrup |
| Aros Maler Entreprise A/S | 8541 | Skødstrup |
| Auktionshuset dab A/S | 8361 | Hasselager |
| Autocentralen.com Vejle A/S | 7100 | Vejle |
| AVANT Danmark | 8670 | Låsby |
| Avidenz A/S | 5250 | Odense SV |
| AVK Danmark A/S | 8464 | Galten |