| IDCQ HOSPITALES Y SANIDAD SLU BORME | B87324844 | 9.442.934 € | 173 | 18 | |
| CONSTRUCCIONES MAJOIN, S.L. BORME | B06283790 | 8.955.297 € | 24 | 17 | |
| UTE GÉVORA CONSTRUCCIONES, SA - ACEINSA MOVILIDAD,… | U06762959 | 8.923.959 € | 1 | 1 | |
| ABBOTT LABORATORIES,S.A BORME | A08099681 | 8.716.243 € | 6 | 1 | |
| UTE TELEFÓNICA DE ESPAÑA S.A.U. - TELEFÓNICA MÓVIL… | A82018474 | 8.519.741 € | 126 | 27 | |
| Repsol Comercial de Productos Petrolíferos, S.A. BORME | A80298839 | 8.492.595 € | 48 | 27 | |
| Astellas Pharma S.A. BORME | A80461221 | 8.325.926 € | 9 | 3 | |
| FCC CONSTRUCCION SA BORME | A28854727 | 8.300.925 € | 1 | 1 | |
| Ibermatica, S.A. BORME | A20038915 | 8.255.248 € | 22 | 4 | |
| Edwards Lifesciences, S.L. BORME | B96954078 | 7.844.068 € | 4 | 1 | |
| BALNEARIO EL RAPOSO, S.L. BORME | B28023679 | 7.811.533 € | 9 | 3 | |
| PALEX MEDICAL, S.A. BORME | A58710740 | 7.690.778 € | 53 | 10 | |
| AMURRIO FERROCARRIL Y EQUIPOS SA BORME | A01061373 | 7.661.799 € | 1 | 1 | |
| BABCOCK MISSION CRITICAL SERVICES ESPAÑA, S.A.U. BORME | A03125010 | 7.654.000 € | 1 | 1 | |
| PHILIPS IBÉRICA SAU BORME | A28017143 | 7.574.952 € | 44 | 7 | |
| EIFFAGE INFRAESTRUCTURAS S.A. Y CONSTRUCTORA SAN J… | — | 7.494.480 € | 1 | 1 | |
| SKY HELICÓPTEROS, S.A | A07591738 | 7.199.657 € | 2 | 1 | |
| RENFE VIAJEROS SOCIEDAD MERCANTIL ESTATAL, S.A BORME | A86868189 | 7.053.940 € | 1 | 1 | |
| CONSTRUCCIONES SEVILLA NEVADO S.A. BORME | A10036424 | 6.936.867 € | 41 | 12 | |
| Alstom Transporte SA BORME | A46598363 | 6.922.663 € | 1 | 1 | |
| Molecor Tecnología, S.L. BORME | B84724921 | 6.822.334 € | 19 | 1 | |
| UTE PLASENCIA-CACERES LOTE 1 | U88224555 | 6.771.267 € | 1 | 1 | |
| ALTEC INFRAESTRUCTURA, S.A.-TÉCNICAS DE DESALINIZA… | — | 6.726.600 € | 1 | 1 | |
| Vertex Pharmaceuticals Spain S.L. BORME | B86631686 | 6.529.206 € | 3 | 1 | |
| SERUNION, S.A. BORME | A59376574 | 6.522.130 € | 35 | 6 | |