| B6 Nordic A/S | 9300 | Sæby |
| Balluff ApS | 9220 | Aalborg Øst |
| Bang & Olufsen a/s | 7600 | Struer |
| BASE Erhverv A/S | 8700 | Horsens |
| BB Data Teknik A/S | 2860 | Søborg |
| Bb Electronics A/S | 8700 | Horsens |
| BBT fiberoptic ApS | 2840 | Holte |
| BD Consult Electronic Engineering A/S | 9500 | Hobro |
| BERNSTEIN A/S | 8240 | Risskov |
| Betech A/S | 2730 | Herlev |
| Billy.dk | 1123 | København K |
| BITO Lagerteknik A/S | 5260 | Odense S |
| BL Termografi | 7000 | Fredericia |
| BLEVA A/S | 9400 | Nørresundby |
| Boliden Bergsøe A/S | 2600 | Glostrup |
| Bomberg & Co ApS | 3540 | Lynge |
| Bott-Danmark A/S | 7000 | Fredericia |
| Bournonville Group ApS | 4690 | Haslev |
| Bowitek ApS | 7000 | Fredericia |
| BR Electronics ApS | 2740 | Skovlunde |
| BS Specialslanger A/S | 2600 | Glostrup |
| BSM Reklame | 7100 | Vejle |
| Bureau Veritas | 7000 | Fredericia |
