| A Ø Drejeværksted ApS | 7130 | Juelsminde |
| A. K. Iversen A/S | 8920 | Randers NV |
| a.h. nichro Haardchrom A/S | 2650 | Hvidovre |
| A.K.S. Gruppen A/S | 2650 | Hvidovre |
| A/S Dansk Anodiserings Industri | 7700 | Thisted |
| A/S Dybvad Stålindustri | 9352 | Dybvad |
| A/S Grenaa Skibsværft | 8500 | Grenaa |
| A/S Gunnar Haagensen | 3450 | Allerød |
| A/S HAI Horsens | 8700 | Horsens |
| A/S J. Petersens Beslagfabrik | 9240 | Nibe |
| A/S Kurt Hansen | 5700 | Svendborg |
| A/S Metalcentret | 2600 | Glostrup |
| A/S Oilpower Hydraulics | 6700 | Esbjerg |
| A/S Secure | 3520 | Farum |
| AABO-IDEAL A/S | 5600 | Faaborg |
| AAG | Aalborg Gummivarefabrik A/S | 9400 | Nørresundby |
| Aagaard A/S | 9560 | Hadsund |
| Aalborg CSP A/S | 9000 | Aalborg |
| Aalborg Recycling ApS | 9220 | Aalborg Øst |
| Aarhus Maskinmesterskole | 8000 | Aarhus C |
| Aarslev Maskinfabrik ApS | 5792 | Årslev |
| Aasted | 3520 | Farum |
| AB Electric A/S | 6091 | Bjert |
| AB Inventech A/S | 7430 | Ikast |
| AB Svejseteknik ApS | 8220 | Brabrand |
| AB Vandskæring A/S | 9530 | Støvring |
| ABB A/S | 2740 | Skovlunde |
| ABC Hansen Engineering - v/Leif ABC Hansen | 3490 | Kvistgård |
| ABC-CLEAN ApS | 3490 | Kvistgård |
| ABJ METAL A/S | 6500 | Vojens |
| Abratek A/S | 9400 | Nørresundby |
| Accoat A/S | 3490 | Kvistgård |
| ACO service A/S | 6000 | Kolding |
| ACTEC A/S | 8940 | Randers SV |
| Acuttek | 5500 | Middelfart |
| Adding ApS | 9000 | Aalborg |
| AE Partner A/S | 8680 | Ry |
| AGA A/S | 2300 | København S |
| Agitek ApS | 8740 | Brædstrup |
| AGJ A/S | 4295 | Stenlille |
| Agreement Consulting ApS | 1069 | København K |
| AH Industries A/S | 6760 | Ribe |
| AH Smede & Maskinfabrik | 5690 | Tommerup |
| Air Liquide Danmark A/S | 2630 | Taastrup |
| Aircold Køleanlæg | 9210 | Aalborg SØ |
| AJ Engros A/S | 7160 | Tørring |
| Ajos a/s | 7100 | Vejle |
| AK Smede & Staldteknik ApS | 7451 | Sunds |
| AKSTRUP Company ApS | 8600 | Silkeborg |
| AkzoNobel Powder Coatings | 2730 | Herlev |
| Albe Emballage A/S | 2640 | Hedehusene |
| Albjerg's Maskintec A/S | 5771 | Stenstrup |
| Alderslyst Elektro A/S | 8600 | Silkeborg |
| Alfa Instruments K/S | 2500 | Valby |
| Alfa Laval Tank Equipment A/S | 2535 | Ishøj |
| Alflow Scandinavia A/S | 6600 | Vejen |
| ALL NRG A/S | 8520 | Lystrup |
| ALLERUP TEKNIK AS | 5220 | Odense SØ |
| ALLKAL AB | 664 34 | GRUMS |
| Alpha Brush ApS | 8370 | Hadsten |
| ALPHA Containers A/S | 8000 | Aarhus C |
| Alsmatik A/S | 6400 | Sønderborg |
| Aluflam A/S | 4000 | Roskilde |
| Alumeco A/S | 5000 | Odense C |
| Aluscan ApS | 4220 | Korsør |
| Amada Denmark | 8700 | Horsens |
| Amatek Skilte ApS | 7000 | Fredericia |
| AMCS Denmark A/S | 2400 | København NV |
| Ammeraal Beltech Modular A/S uni-chains | 7100 | Vejle |
| AMU-Vest | 6705 | Esbjerg Ø |
| AN Emballage & Tømrer ApS | 9500 | Hobro |
| AN Group A/S | 3540 | Lynge |
| Anders Pedersen, Maskin- & Specialfabrik A/S | 7150 | Barrit |
| Anmasi A/S | 7200 | Grindsted |
| Annoncørbetalt indhold | 9220 | Aalborg Ø |
| AP Farver A/S | 8800 | Viborg |
| Ara-El ApS | 4690 | Haslev |
| Arburg A/S | 2670 | Greve |
| Arepa Danmark A/S | 8600 | Silkeborg |
| ARI-Armaturen A/S | 7000 | Fredericia |
| Armiga A/S | 7700 | Thisted |
| AS Scan | 6960 | Hvide Sande |
| ASSA ABLOY Entrance Systems | 9500 | Hobro |
| ATHCO ENGINEERING A/S | 6000 | Kolding |
| Atlanta Trade Power International ApS | 6800 | Varde |
| Atlas Copco Industrial Technique | 2620 | Albertslund |
| Atradius | 2450 | København SV |
| Auktionshuset dab A/S | 8361 | Hasselager |
| Automatik | 7400 | Herning |
| Automation Modules | 6040 | Egtved |
| Aventia Energy ApS | 9000 | Aalborg |
| Aventics ApS | 9530 | Støvring |
| Avidenz A/S | 5250 | Odense SV |
| AVISTA OIL Danmark A/S | 4400 | Kalundborg |
| AVK Flow Control | 7100 | Vejle |
| AVK GUMMI A/S | 8670 | Låsby |
| AVN Gruppen | 2605 | Brøndby |
| AVN Hydraulik A/S | 2605 | Brøndby |
| AVN Pladeteknik A/S | 2605 | Brøndby |
| AVN Teknik A/S | 2605 | Brøndby |
| AVS Danmark ApS | 2640 | Hedehusene |
| AVS Vejsikring A/S | 4621 | Gadstrup |
| AxFlow A/S | 2765 | Smørum |
