| SafeExIT A/S | 2600 | Glostrup |
| Saferoad Daluiso A/S | 5250 | Odense SV |
| Saint-Gobain Abrasives A/S | 2630 | Taastrup |
| Saint-Gobain Denmark A/S, ISOVER | 6580 | Vamdrup |
| Saint-Gobain Ecophon A/S | 2650 | Hvidovre |
| Saltnex ApS | 8930 | Randers NØ |
| SAMSON REGULERINGSTEKNIK A/S | 3460 | Birkerød |
| Sanderum Smede- og Maskinværksted A/S | 5250 | Odense SV |
| Sandmaster | 2690 | Karlslunde |
| Sangberg Architects | 2100 | København Ø |
| Sanistål A/S | 9000 | Aalborg |
| Sapa Building System | 8240 | Risskov |
| SAWO A/S | 9530 | Støvring |
| SB Gas & Værktøj ApS | 4700 | Næstved |
| Scan Office A/S | 2730 | Herlev |
| Scan Underlay Production ApS | 8464 | Galten |
| Scanboiler Varmeteknik | 8600 | Silkeborg |
| Scancomposit A/S | 8940 | Randers SV |
| Scandi Byg a/s | 9670 | Løgstør |
| Scandi Supply A/S | 5492 | Vissenbjerg |
| SCANGRIP A/S | 5700 | Svendborg |
| SCANKAB | 5560 | Aarup |
| Scanmaster ApS | 4000 | Roskilde |
| Scanpipe A/S | 5250 | Odense SV |
| Scantron A/S | 5000 | Odense C |
| Scantruck A/S | 7800 | Skive |
| Scanvogn A/S | 9850 | Hirtshals |
| Schack Trapper A/S | 6780 | Skærbæk |
| Schmersal Danmark A/S | 2750 | Ballerup |
| Schneider Electric Danmark A/S | 2750 | Ballerup |
| Schüco Denmark ApS | 2650 | Hvidovre |
| Sealing Group ApS | 2620 | Albertslund |
| SEF Energi A/S | 5700 | Svendborg |
| Sejma Industries ApS | 8620 | Kjellerup |
| Septum A/S | 7200 | Grindsted |
| Servex Group A/S | 8670 | Låsby |
| Sesam Mobile Væg Systemer A/S | 2670 | Greve |
| SEW-EURODRIVE A/S | 2670 | Greve |
| Shark & Co. A/S | 8700 | Horsens |
| SIA Facta Building Production | 3011 | Jelgavas novads |
| SICK A/S | 3460 | Birkerød |
| Sigma Estimates | 2630 | Høje Taastrup |
| Signmanager ApS | 8250 | Egå |
| Signmax AB | 438 91 | Landvetter |
| Sika Footwear A/S | 7400 | Herning |
| Silkeborg Stigefabrik | 8653 | Them |
| Simonsen co | 8270 | Højbjerg |
| Simpson Strong-Tie A/S | 8300 | Odder |
| SITECH Danmark A/S | 8700 | Horsens |
| Skafte A/S | 7000 | Fredericia |
| Skelmose ApS | 6740 | Bramming |
| Skilteproduktion ApS | 9400 | Nørresundby |
| Skiltex | 2610 | Rødovre |
| Skou Gruppen A/S | 2970 | Hørsholm |
| Skovgaard Supply | 4880 | Nysted |
| SKS Kraner A/S | 4130 | Viby Sjælland |
| Skybrudskompagniet ApS | 6700 | Esbjerg |
| Skydoor ApS | 5474 | Veflinge |
| Slejpner Maskiner A/S | 2820 | Gentofte |
| Smart Automation ApS | 9490 | Pandrup |
| Smart Lift A/S | 7900 | Nykøbing M |
| Smartguard ApS | 3550 | Slangerup |
| SMVdanmark | 2300 | København S |
| SNA EUROPE (DENMARK) A/S | 2605 | Brøndby |
| Snedkernes Uddannelser | 2400 | København NV |
| SnoerGlas | 2400 | København NV |
| Södra Timber A/S | 3400 | Hillerød |
| Softcontrol ApS | 9310 | Vodskov |
| Solar Danmark A/S | 6600 | Vejen |
| Solar Partner ApS | 2100 | København Ø |
| SolarVenti A/S | 8881 | Thorsø |
| Solid Software Development ApS | 9000 | Aalborg |
| Solum Roskilde A/S | 4000 | Roskilde |
| Solutionweb ApS - |Apps|Tracking|Integrationer| | 2820 | Gentofte |
| Sonnimax A/S | 5500 | Middelfart |
| Soprema A/S | 8722 | Hedensted |
| SP-System Danmark ApS | 3450 | Allerød |
| Specialfabrikken Vinderup A/S | 7830 | Vinderup |
| Spirax Sarco Ltd. | 3460 | Birkerød |
| Spæncom A/S | 9200 | Aalborg SV |
| SSI SCHÄFER A/S | 9560 | Hadsund |
| Stålspecialisten ApS | 6818 | Årre |
| Star Industri ApS | 5220 | Odense SØ |
| Statager & Partner A/S | 9400 | Nørresundby |
| STB BYG A/S | 7100 | Vejle |
| STENDER ENTREPRISE A/S | 6000 | Kolding |
| Stender Øst A/S | 2670 | Greve |
| Steni Danmark A/S | 4600 | Køge |
| Stennevad | 6715 | Esbjerg N |
| Stiholt A/S | 9300 | Sæby |
| Stofa Erhverv A/S | 6715 | Esbjerg N |
| STOK Emballage K/S | 5550 | Langeskov |
| Stonewalk as | 8740 | Brædstrup |
| Strandmøllen A/S | 2930 | Klampenborg |
| Strenometer ApS | 2830 | Virum |
| Strøjer Tegl A/S | 5610 | Assens |
| Sulzer Pumps Denmark A/S | 3450 | Farum |
| Summit Electronics ApS | 2650 | Hvidovre |
| Sundolitt A/S | 7190 | Billund |
| Super Dæk Autoværksted | 6650 | Brørup |
| SuperAsfalt A/S | 2600 | Glostrup |
| Superego | 8700 | Horsens |
| Sweco Danmark A/S | 2300 | København S |
| Symetri A/S | 2300 | København S |
| Systemair A/S | 8361 | Hasselager |