| H.J. Hansen Recycling A/S | 5000 | Odense C |
| Haco A/S | 7150 | Barrit |
| HAJO TOOL A/S | 2665 | Vallensbæk strand |
| HAMMER Graphic Supply ApS | 2650 | Hvidovre |
| Handelsselskabet FL. Jørgensen ApS | 8000 | Aarhus C |
| Hans Buch A/S | 2620 | Albertslund |
| Hans Følsgaard A/S | 4600 | Køge |
| Hans Schourup A/S | 8310 | Tranbjerg |
| Harald Pihl A/S | 2970 | Hørsholm |
| Harting ApS | 7100 | Vejle |
| Hedema A/S | 8700 | Horsens |
| Heka Danmark ApS | 4700 | Næstved |
| HellermannTyton | 4000 | Roskilde |
| Helmuth A. Jensen A/S | 2610 | Rødovre |
| HEMA Kranudstyr | 8723 | Løsning |
| Hentechsolution A/S | 2670 | Greve |
| Hermle Nordic | 5550 | Langeskov |
| Hexagon Manufacturing Intelligence AB | 632 29 | Eskilstuna |
| HH Vejle ApS | 7100 | Vejle |
| Hindsbo Magneter ApS | 4000 | Roskilde |
| HJ Rustfri Stål ApS | 9220 | Aalborg Øst |
| Hobro Laserteknik A/S | 9500 | Hobro |
| Hobro Rustfri Procesteknik A/S | 9500 | Hobro |
| Hoffmann Group | 1050 | København K |
| Holger Elgaard A/S | 8471 | Sabro |
| Holtec Automatic A/S | 6715 | Esbjerg N |
| Hosta Industries A/S | 9320 | Hjallerup |
| Hoyer | 8370 | Hadsten |
| HPH Totalbyg A/S | 8382 | Hinnerup |
| HSM Industri A/S | 8500 | Grenaa |
| HSØ ApS | 9320 | Hjallerup |
| HumanTrust A/S | 8381 | Tilst, Aarhus |
| Hvm A/S | 7451 | Sunds |
| HydraComp A/S | 7800 | Skive |
| HydraSpecma A/S | 6900 | Skjern |
| Hydro Extrusion Denmark A/S | 6270 | Tønder |
| Hydroscand A/S | 2730 | HERLEV |
| Hymatik ApS | 5250 | Odense SV |
| Hytek A/S | 9870 | Sindal |
| HYTOR A/S | 6705 | Esbjerg Ø |
| Hempel A/S | 2800 | Kgs. Lyngby |
| HMV - Hinnerup Maskinværksted A/S | 8382 | Hinnerup |