| L-Tek A/S | 8961 | Allingåbro |
| L. Østergaards Maskinfabrik A/S | 7000 | Fredericia |
| L.M. Stålindustri A/S | 8920 | Randers NV |
| La Cour & Faber A/S | 4000 | Roskilde |
| LA-Production ApS | 3250 | Gilleleje |
| Lakteknik ApS | 6000 | Kolding |
| Larko Magnet International A/S | 2740 | Skovlunde |
| Larsen´s Eftf. ApS | 6000 | Kolding |
| Låsby Smede- og Maskinfabrik ApS | 8670 | Låsby |
| Lauritz Knudsen | 2750 | Ballerup |
| Leasing Fyn | 5250 | Odense SV |
| Lem Beslagfabrik A/S | 6940 | Lem St |
| Lemvigh-Müller A/S | 2730 | Herlev |
| Lenze A/S | 2620 | Albertslund |
| Leoka A/S | 9620 | Aalestrup |
| Lesjöfors A/S | 2605 | Brøndby |
| Lg Montage A/S | 9400 | Nørresundby |
| Lilleheden A/S | 9850 | Hirtshals |
| Lim-Tech ApS | 7120 | Vejle Øst |
| LINATECH A/S | 8620 | Kjellerup |
| Linatex A/S | 2730 | Herlev |
| LINDLARSEN A/S | 7400 | Herning |
| Lindø Port of Odense | 5330 | Munkebo |
| Linka Energy A/S | 6940 | Lem St |
| Liqflow A/S | 7100 | Vejle |
| LJ Maskinteknik A/S | 6040 | Egtved |
| Ljungdahl A/S | 3450 | Allerød |
| LMI Danmark A/S | 7182 | Bredsten |
| LNT A/S | 6700 | Esbjerg |
| LogiCon Nordic A/S | 6000 | Kolding |
| Lomac A/S | 5330 | Munkebo |
| LP Kolding A/S | 6000 | Kolding |
| lpm production a/s | 6870 | Ølgod |
| LS Control A/S | 4160 | Herlufmagle |
| LSM Pumper ApS | 9760 | Vrå |
| LT Automation ApS | 9220 | Aalborg Øst |
| LTC Maskinfabrik A/S | 5800 | Nyborg |
| Lubral Specialsmøremidler | 2900 | Hellerup |
| Lund Maskinfabrik A/S | 8700 | Horsens |
| LV Teknik ApS | 5492 | Vissenbjerg |
| LVD Scandinavia | 1905 | . |
| Lymo ApS | 7000 | Fredericia |
| Løsning Maskinfabrik A/S | 8723 | Løsning |
| Løwener A/S | 2600 | Glostrup |
