| # | Empresa | Contratos | Volumen | Organismos |
| 1 | PROMOINVERSORA DEL VALLÈS S.L | 2480 | 947.654 € | 3 |
| 2 | Amazon Business EU Sarl, Sucursal en España | 1424 | 117.376 € | 41 |
| 3 | MERCK LIFE SCIENCE S.L.U. | 1197 | 822.767 € | 10 |
| 4 | MERCK LIFE SCIENCE SLU | 1163 | 885.413 € | 62 |
| 5 | LYRECO ESPAÑA, SA Unipersonal | 1162 | 491.723 € | 118 |
| 6 | CARBONELL KIOSCO, S.L. | 1121 | 135.375 € | 1 |
| 7 | CANON ESPAÑA, SA Unipersonal | 1045 | 342.148 € | 23 |
| 8 | AVORIS RETAIL DIVISION SL | 1023 | 951.447 € | 8 |
| 9 | FISHER SCIENTIFIC, S.L. | 1001 | 831.796 € | 20 |
| 10 | Fisher Scientific, S.L. | 973 | 946.549 € | 39 |
| 11 | ECONOCOM SEMIC, S.A.U | 954 | 813.051 € | 67 |
| 12 | PMC GRUP 1985, S.A. | 872 | 449.511 € | 61 |
| 13 | SERVICIOS MICROINFORMÁTICA, SA | 827 | 1.013.328 € | 98 |
| 14 | ENDESA ENERGÍA S.L. | 811 | 281.347 € | 1 |
| 15 | ROCHE FARMA, S.A. | 811 | 8.888.727 € | 1 |
| 16 | JANSSEN-CILAG, S.A. | 781 | 8.776.214 € | 1 |
| 17 | SANDOZ FARMACÉUTICA, S.A. | 768 | 7.491.824 € | 1 |
| 18 | MEDTRONIC IBÉRICA, S.A | 702 | 6.558.606 € | 1 |
| 19 | GRIFOLS MOVACO, S.A. | 663 | 7.792.091 € | 11 |
| 20 | M.C. COPIGRAFIA, S.L. | 648 | 110.169 € | 2 |
| 21 | CAIXABANK, SA | 619 | 49.828 € | 32 |
| 22 | FACTOR ENERGIA, SA | 619 | 116.157 € | 7 |
| 23 | BESTOURS, S.A. | 606 | 227.270 € | 6 |
| 24 | PALEX MEDICAL, SA, SOCIETAT UNIPERSONAL | 593 | 1.698.068 € | 46 |
| 25 | SANOFI AVENTIS, S.A. | 566 | 6.110.584 € | 6 |
| 26 | NOVARTIS FARMACEUTICA, S.A. | 556 | 5.805.833 € | 2 |
| 27 | PALEX MEDICAL, S.A. | 524 | 3.826.161 € | 38 |
| 28 | ELÈCTRICA SEROSENSE, SL | 519 | 97.122 € | 2 |
| 29 | PROQUILAB S.A. | 488 | 570.449 € | 1 |
| 30 | LABORATORIOS INDAS, S.A.U. | 481 | 778.933 € | 5 |
| 31 | PROQUINORTE, S.A. | 474 | 749.343 € | 29 |
| 32 | ASTRAZENECA FARMACÉUTICA SPAIN, S.A. | 470 | 5.304.047 € | 1 |
| 33 | Active Medical Disposable, S.A.U. | 461 | 413.518 € | 1 |
| 34 | CULLINGAN WATER SPAIN, SLU | 459 | 199.314 € | 63 |
| 35 | EL CORTE INGLÉS, SA | 459 | 213.340 € | 44 |
| 36 | EVENTS BRANCH S.L. | 456 | 524.131 € | 234 |
| 37 | VIVA AQUASERVICE SPAIN SA | 444 | 158.266 € | 50 |
| 38 | ABBVIE SPAIN, S.L. | 431 | 4.263.780 € | 1 |
| 39 | WURTH ESPAÑA.SA | 420 | 226.417 € | 69 |
| 40 | LIFE TECHNOLOGIES, S.A. | 415 | 1.010.345 € | 21 |
| 41 | VWR INTERNATIONAL EUROLAB, S.L., SOCIETAT UNIPERSONAL | 414 | 308.882 € | 30 |
| 42 | CSL BEHRING, S.A. | 412 | 5.088.925 € | 1 |
| 43 | AUBERT, S.A. | 408 | 234.644 € | 33 |
| 44 | SOCIEDAD GENERAL DE AGUAS DE BARCELONA, SA Unipersonal | 391 | 830.039 € | 46 |
| 45 | Air liquide Healthcare España, S.L. | 386 | 152.079 € | 15 |
| 46 | Integración Agencia de Viajes, SA | 386 | 316.812 € | 20 |
| 47 | Media Markt Saturn, SA | 385 | 175.238 € | 60 |
| 48 | GLAXOSMITHKLINE, S.A. | 382 | 3.910.745 € | 6 |
| 49 | AMAZON EU S.A.R.L. | 374 | 30.959 € | 7 |
| 50 | PRONET, SDAD. COOP. | 370 | 185.492 € | 1 |
| 51 | SIEMENS HEALTHCARE, S.L. | 346 | 4.173.016 € | 2 |
| 52 | STRYKER IBERIA, SL, Societat Unipersonal | 343 | 937.486 € | 22 |
| 53 | HIDRO TARRACO,S.A. | 341 | 103.259 € | 29 |
| 54 | FLUID ELECTRIC CAMPRODON II , S.L. | 333 | 60.603 € | 1 |
| 55 | AMGEN, S.A. | 328 | 3.316.995 € | 1 |
| 56 | VWR INTERNATIONAL EUROLAB, S.L. | 326 | 553.241 € | 15 |
| 57 | AME MATERIAL ELECTRICO,SAU | 325 | 227.912 € | 47 |
| 58 | TELEFONICA DE ESPAÑA, S.A. SOCIEDAD UNIPERSONAL | 321 | 179.309 € | 42 |
| 59 | VERTEX PHARMACEUTICALS SPAIN, S.L. | 320 | 3.287.817 € | 1 |
| 60 | LABORATORIOS VIIV HEALTHCARE, S.L. | 317 | 3.663.663 € | 1 |
| 61 | WERFEN ESPAÑA SAU | 315 | 636.484 € | 29 |
| 62 | GISPERT BUSINESS, SL | 314 | 26.792 € | 1 |
| 63 | SERVICIO ESTACION, S.A. | 314 | 92.346 € | 46 |
| 64 | B. BRAUN SURGICAL, SA, Societat Unipersonal | 311 | 600.007 € | 18 |
| 65 | Stein Girona, S.L. | 310 | 61.161 € | 24 |
| 66 | PFIZER, S.L. | 303 | 2.863.870 € | 2 |
| 67 | Viajes El Corte Inglés, S.A. | 301 | 144.668 € | 5 |
| 68 | RS AMIDATA S.A. | 300 | 94.108 € | 17 |
| 69 | FISHER SCIENTIFIC,S.L. | 299 | 585.919 € | 2 |
| 70 | argenx Spain SL | 298 | 2.491.344 € | 1 |
| 71 | ECOELECTRIC SUMINISTROS SL | 298 | 175.294 € | 4 |
| 72 | EMPRESA MUNICIPAL MIXTA D'AIGÜES DE TARRAGONA, SA | 296 | 262.571 € | 25 |
| 73 | TEKNOVAS, S.A. | 295 | 658.716 € | 6 |
| 74 | METALCO, S.A. | 293 | 182.447 € | 40 |
| 75 | CONCESIONES DE RESTAURANTES Y BARES, SL | 291 | 110.021 € | 9 |
| 76 | MEDTRONIC IBERICA SA | 291 | 2.227.312 € | 7 |
| 77 | SEKAI CORPORATE TRAVEL S.L.U. | 291 | 262.191 € | 4 |
| 78 | SUPERMERCADOS LLOBET, SA | 291 | 27.527 € | 9 |
| 79 | SOCIEDAD ESTATAL CORREOS Y TELÉGRAFOS, S.A. | 286 | 267.439 € | 83 |
| 80 | GENERAL ELECTRIC HEALTHCARE ESPAÑA, SA | 282 | 588.577 € | 29 |
| 81 | EL ALMECEN FERRETERIA, S.L. | 280 | 14.135 € | 3 |
| 82 | SWEDISH ORPHAN BIOVITRUM, S.L. | 269 | 3.078.750 € | 1 |
| 83 | DEXTROMEDICA, SL | 266 | 402.869 € | 29 |
| 84 | CET TRABAJOS SOLIDARIOS, S.L. | 263 | 47.481 € | 4 |
| 85 | LILLY, S.A. | 263 | 2.708.256 € | 1 |
| 86 | MONCOBRA S.A. | 261 | 301.722 € | 6 |
| 87 | WERFEN ESPAÑA, S.A.U. | 261 | 1.389.350 € | 13 |
| 88 | MEDTRONIC IBERICA, SA SOCIETAT UNIPERSONAL | 259 | 975.397 € | 21 |
| 89 | REY CENTER SL | 259 | 108.211 € | 2 |
| 90 | VIAJES SOLDOR, SL | 259 | 161.970 € | 1 |
| 91 | ROCHE DIAGNOSTICS, S.L. | 258 | 2.446.485 € | 4 |
| 92 | DHL Express Spain, SLU | 257 | 49.563 € | 13 |
| 93 | BECTON DICKINSON S.A. | 255 | 2.155.005 € | 4 |
| 94 | SOLITIUM CONTROL GROUP, S.A. | 254 | 247.548 € | 54 |
| 95 | BIOGEN SPAIN, S.L. | 252 | 2.877.951 € | 1 |
| 96 | COMERCIAL CONTEL, SA | 250 | 541.483 € | 67 |
| 97 | ENDESA ENERGíA, SA Unipersonal | 250 | 146.772 € | 25 |
| 98 | Endesa Distribución Eléctrica, SLU | 246 | 315.387 € | 47 |
| 99 | FOXEN SYSTEMS S.L | 246 | 92.641 € | 2 |
| 100 | MANTENIMIENTO ELECTROMEDICO, S.A. | 244 | 161.196 € | 6 |