| # | Empresa | Contratos | Volumen | Organismos |
| 1 | PROMOINVERSORA DEL VALLÈS S.L | 2615 | 827.421 € | 3 |
| 2 | Amazon Business EU Sarl, Sucursal en España | 1382 | 116.541 € | 44 |
| 3 | LYRECO ESPAÑA, SA Unipersonal | 1343 | 587.486 € | 125 |
| 4 | MERCK LIFE SCIENCE S.L.U. | 1281 | 984.386 € | 10 |
| 5 | SERVICIOS MICROINFORMÁTICA, SA | 1236 | 1.492.222 € | 113 |
| 6 | MERCK LIFE SCIENCE SLU | 1229 | 1.031.083 € | 66 |
| 7 | CARBONELL KIOSCO, S.L. | 1161 | 164.705 € | 1 |
| 8 | CANON ESPAÑA, SA Unipersonal | 1150 | 375.477 € | 28 |
| 9 | PMC GRUP 1985, S.A. | 1087 | 508.465 € | 65 |
| 10 | FISHER SCIENTIFIC, S.L. | 1069 | 1.016.527 € | 20 |
| 11 | Fisher Scientific, S.L. | 1052 | 1.180.444 € | 38 |
| 12 | AVORIS RETAIL DIVISION SL | 1037 | 972.491 € | 8 |
| 13 | GRIFOLS MOVACO, S.A. | 927 | 11.164.987 € | 12 |
| 14 | ECONOCOM SEMIC, S.A.U | 860 | 699.361 € | 51 |
| 15 | ROCHE FARMA, S.A. | 816 | 8.936.143 € | 1 |
| 16 | JANSSEN-CILAG, S.A. | 791 | 8.886.711 € | 1 |
| 17 | FACTOR ENERGIA, SA | 774 | 148.761 € | 8 |
| 18 | ENDESA ENERGÍA S.L. | 667 | 295.205 € | 1 |
| 19 | BESTOURS, S.A. | 627 | 235.532 € | 7 |
| 20 | CSL BEHRING, S.A. | 596 | 7.376.834 € | 1 |
| 21 | PALEX MEDICAL, SA, SOCIETAT UNIPERSONAL | 595 | 1.835.877 € | 50 |
| 22 | CAIXABANK, SA | 592 | 49.433 € | 32 |
| 23 | LABORATORIOS INDAS, S.A.U. | 587 | 987.884 € | 5 |
| 24 | PALEX MEDICAL, S.A. | 581 | 4.433.488 € | 36 |
| 25 | SANOFI AVENTIS, S.A. | 579 | 6.215.778 € | 6 |
| 26 | NOVARTIS FARMACEUTICA, S.A. | 570 | 5.951.590 € | 2 |
| 27 | Active Medical Disposable, S.A.U. | 556 | 545.844 € | 1 |
| 28 | EL CORTE INGLÉS, SA | 553 | 256.016 € | 46 |
| 29 | Viajes El Corte Inglés, S.A. | 537 | 230.564 € | 4 |
| 30 | PROQUILAB S.A. | 532 | 787.314 € | 1 |
| 31 | M.C. COPIGRAFIA, S.L. | 531 | 115.011 € | 1 |
| 32 | CULLINGAN WATER SPAIN, SLU | 514 | 190.488 € | 65 |
| 33 | PROQUINORTE, S.A. | 505 | 827.827 € | 30 |
| 34 | WURTH ESPAÑA.SA | 497 | 260.300 € | 70 |
| 35 | VWR INTERNATIONAL EUROLAB, S.L., SOCIETAT UNIPERSONAL | 465 | 315.018 € | 34 |
| 36 | ABBVIE SPAIN, S.L. | 460 | 4.489.066 € | 1 |
| 37 | GLAXOSMITHKLINE, S.A. | 431 | 4.500.214 € | 6 |
| 38 | VIVA AQUASERVICE SPAIN SA | 430 | 169.917 € | 51 |
| 39 | FLUID ELECTRIC CAMPRODON II , S.L. | 424 | 78.432 € | 1 |
| 40 | LIFE TECHNOLOGIES, S.A. | 423 | 1.136.135 € | 19 |
| 41 | AUBERT, S.A. | 421 | 267.582 € | 36 |
| 42 | Media Markt Saturn, SA | 421 | 208.924 € | 67 |
| 43 | MEDTRONIC IBÉRICA, S.A | 413 | 3.858.988 € | 1 |
| 44 | PRONET, SDAD. COOP. | 393 | 222.528 € | 1 |
| 45 | AMGEN, S.A. | 391 | 3.977.617 € | 1 |
| 46 | SANDOZ FARMACÉUTICA, S.A. | 384 | 3.735.782 € | 1 |
| 47 | AME MATERIAL ELECTRICO,SAU | 382 | 274.500 € | 49 |
| 48 | CONCESIONES DE RESTAURANTES Y BARES, SL | 376 | 148.246 € | 9 |
| 49 | SERVICIO ESTACION, S.A. | 363 | 108.476 € | 48 |
| 50 | METALCO, S.A. | 362 | 216.146 € | 47 |
| 51 | Air liquide Healthcare España, S.L. | 361 | 157.710 € | 15 |
| 52 | SIEMENS HEALTHCARE, S.L. | 359 | 4.321.677 € | 2 |
| 53 | SOCIEDAD GENERAL DE AGUAS DE BARCELONA, SA Unipersonal | 356 | 952.944 € | 48 |
| 54 | STRYKER IBERIA, SL, Societat Unipersonal | 356 | 978.522 € | 23 |
| 55 | Integración Agencia de Viajes, SA | 355 | 325.063 € | 20 |
| 56 | HIDRO TARRACO,S.A. | 350 | 98.682 € | 28 |
| 57 | B. BRAUN SURGICAL, SA, Societat Unipersonal | 348 | 537.485 € | 19 |
| 58 | ENDESA ENERGíA, SA Unipersonal | 346 | 193.537 € | 25 |
| 59 | TELEFONICA DE ESPAÑA, S.A. SOCIEDAD UNIPERSONAL | 346 | 193.562 € | 44 |
| 60 | VIAJES SOLDOR, SL | 344 | 160.412 € | 1 |
| 61 | SWEDISH ORPHAN BIOVITRUM, S.L. | 340 | 3.973.285 € | 1 |
| 62 | EVENTS BRANCH S.L. | 339 | 417.761 € | 194 |
| 63 | VWR INTERNATIONAL EUROLAB, S.L. | 333 | 592.077 € | 15 |
| 64 | SOCIEDAD ESTATAL CORREOS Y TELÉGRAFOS, S.A. | 332 | 335.295 € | 92 |
| 65 | COMERCIAL CONTEL, SA | 329 | 767.873 € | 75 |
| 66 | GESIS DIGITAL S.L.U | 326 | 229.788 € | 1 |
| 67 | WERFEN ESPAÑA SAU | 326 | 687.316 € | 30 |
| 68 | RS AMIDATA S.A. | 323 | 126.089 € | 23 |
| 69 | VERTEX PHARMACEUTICALS SPAIN, S.L. | 320 | 3.287.817 € | 1 |
| 70 | BIOGEN SPAIN, S.L. | 318 | 3.668.473 € | 1 |
| 71 | LABORATORIOS VIIV HEALTHCARE, S.L. | 318 | 3.669.663 € | 1 |
| 72 | GISPERT BUSINESS, SL | 317 | 39.619 € | 1 |
| 73 | ROCHE DIAGNOSTICS, S.L. | 315 | 2.936.912 € | 4 |
| 74 | TEKNOVAS, S.A. | 315 | 807.346 € | 7 |
| 75 | MANTENIMIENTO ELECTROMEDICO, S.A. | 307 | 198.886 € | 8 |
| 76 | SEKAI CORPORATE TRAVEL S.L.U. | 307 | 296.021 € | 4 |
| 77 | argenx Spain SL | 306 | 2.552.016 € | 1 |
| 78 | PFIZER, S.L. | 303 | 2.863.875 € | 2 |
| 79 | FISHER SCIENTIFIC,S.L. | 302 | 691.324 € | 2 |
| 80 | REY CENTER SL | 298 | 131.267 € | 2 |
| 81 | GENERAL ELECTRIC HEALTHCARE ESPAÑA, SA | 296 | 664.622 € | 31 |
| 82 | FOXEN SYSTEMS S.L | 293 | 98.665 € | 2 |
| 83 | ELÈCTRICA SEROSENSE, SL | 292 | 63.969 € | 1 |
| 84 | Endesa Distribución Eléctrica, SLU | 292 | 411.000 € | 48 |
| 85 | BECTON DICKINSON S.A. | 291 | 2.405.386 € | 4 |
| 86 | Novelec Diagonal, SL | 289 | 167.976 € | 14 |
| 87 | DHL Express Spain, SLU | 288 | 61.927 € | 14 |
| 88 | SOLITIUM CONTROL GROUP, S.A. | 288 | 285.198 € | 64 |
| 89 | ALFAMBRA COPISTERIA, SL | 286 | 53.249 € | 10 |
| 90 | ECOELECTRIC SUMINISTROS SL | 286 | 145.725 € | 4 |
| 91 | GEDILAB, S.L. | 280 | 304.221 € | 5 |
| 92 | VIAJES DIANA SA | 278 | 144.290 € | 11 |
| 93 | EL ALMECEN FERRETERIA, S.L. | 277 | 13.763 € | 3 |
| 94 | MEDTRONIC IBERICA SA | 277 | 2.788.951 € | 6 |
| 95 | EMPRESA MUNICIPAL MIXTA D'AIGÜES DE TARRAGONA, SA | 276 | 256.558 € | 25 |
| 96 | Stein Girona, S.L. | 276 | 59.871 € | 22 |
| 97 | AMAZON EU S.A.R.L. | 275 | 32.999 € | 8 |
| 98 | MEDTRONIC IBERICA, SA SOCIETAT UNIPERSONAL | 275 | 1.076.493 € | 21 |
| 99 | INFORMATICA I COMUNICACIONS TARRAGONA, SA | 274 | 678.083 € | 79 |
| 100 | PISTA CERO S.L. | 274 | 217.865 € | 18 |