| Halgruppen ApS | 4780 | Stege |
| Hans Følsgaard A/S | 4600 | Køge |
| Hauge Gruppen | 5270 | Odense N |
| HBO Instruments ApS | 2200 | København N |
| Hedema A/S | 8700 | Horsens |
| Heléns Rør A/S | 5500 | Middelfart |
| Helge Bruhn A/S | 6400 | Sønderborg |
| Helge Frandsen A/S | 8783 | Hornsyld |
| Hentechsolution ApS | 2670 | Greve |
| Hewikut A/S | 7330 | Brande |
| Heymate ApS | 8000 | Aarhus C |
| HF Industri & Marine ApS | 5700 | Svendborg |
| HF Jensen A/S | 2400 | København NV |
| hi Tech & Industry Scandinavia | 7400 | Herning |
| Hi-Con A/S | 9320 | Hjallerup |
| HiFlux Filtration A/S | 8722 | Hedensted |
| HIN A/S | 8700 | Horsens |
| Hirtshals El-Motorservice ApS | 9850 | Hirtshals |
| HN Group A/S | 7190 | Billund |
| Hölscher Jensen A/S | 2600 | Glostrup |
| Holtab Danmark | 6000 | Kolding |
| Horsens Spån Teknik A/S | 8723 | Løsning |
| HorsePower Scandinavia - Electric Motors | 4000 | Roskilde |
| HotPaper ApS | 5220 | Odense SØ |
| House of Energy | 9000 | Aalborg |
| HR Navigator ApS | 7400 | Herning |
| HSM Industri A/S | 8500 | Grenaa |
| HYTOR A/S | 6705 | Esbjerg Ø |
| Høyrup & Clemmensen A/S | 2450 | København SV |
