| ADIF adif.es | Rail Transportation | Madrid, 🇪🇸 Spain | 5.5K | $770.3M | - | - | 9% |
| Cox grupocox.com | Services for Renewable Energy | Sevilla, 🇪🇸 Spain | 922 | $129.1M | - | - | 78% |
| Zelestra zelestra.energy | Energy | Spain, 🇪🇸 Spain | 911 | $512.6M | - | - | 27% |
| RNB rnbcosmeticos.com | Personal Care Product Manufacturing | La Pobla de Vallbona, 🇪🇸 Spain | 648 | $90.7M | - | - | 30% |
| QGMI qgmi.eu | Construction | Madrid, 🇪🇸 Spain | 517 | $187.4M | - | - | 32% |
| VivaGym vivagym.es | Fitness | 🇪🇸 Spain | 488 | $68.3M | - | - | 41% |
| Intecsa intecsa.eu | Engineering | Madrid, 🇪🇸 Spain | 475 | $59.4M | - | - | 23% |
| Overlap overlap.net | Consulting | Madrid, 🇪🇸 Spain | 358 | $98.5M | - | - | 23% |
| TRAMAS tramasmas.com | Retail | GELVES, 🇪🇸 Spain | 344 | $97.6M | - | - | 21% |
| NDAVANT ndavant.cat | Facilities | Barcelona, 🇪🇸 Spain | 341 | $101.9M | - | - | 24% |
| Drim drim.es | Retail | RubÃ, 🇪🇸 Spain | 330 | $93.6M | - | - | 25% |
| Sanivida sanivida.es | Consumer Services | Madrid, 🇪🇸 Spain | 294 | $41.2M | - | - | 22% |
| Pastisart pastisart.es | Food | Terrassa, 🇪🇸 Spain | 287 | $85.2M | - | - | 21% |
| Valorian valorian.es | Civic and Social Organizations | MADRID, 🇪🇸 Spain | 246 | $34.4M | - | - | 38% |
| Hormipresa hormipresa.com | Construction | Barcelona, 🇪🇸 Spain | 246 | $136.3M | - | - | 11% |
| Colegios.es colegios.es | Education | Toro, 🇪🇸 Spain | 238 | $57.0M | - | - | 480% |
| FARMAINDUSTRIA farmaindustria.es | Pharma | Madrid, 🇪🇸 Spain | 236 | $47.4M | - | - | 24% |
| Zennio zennio.com | Electronics | Toledo, 🇪🇸 Spain | 227 | $61.2M | - | - | 21% |
| JOSELITO joselito.com | Food | GUIJUELO, 🇪🇸 Spain | 207 | $61.5M | - | - | 26% |
| Avantio avantio.com | Tech Services | 🇪🇸 Spain | 193 | $30.8M | 211K/mo | - | 13% |
| DIATER diater.com | Pharma | Leganés, 🇪🇸 Spain | 189 | $38.0M | - | - | 29% |
| ForceManager forcemanager.com | Tech Services | 🇪🇸 Spain | 185 | $29.5M | - | - | - |
| EBRO ebroauto.com | Automotive | Barcelona, 🇪🇸 Spain | 180 | $83.5M | - | - | 143% |
| TECNICAL tecnical.cat | Manufacturing | Manresa, 🇪🇸 Spain | 173 | $91.2M | - | - | 36% |
| IHCantabria ihcantabria.com | Research | Santander, 🇪🇸 Spain | 172 | $20.9M | - | - | 1% |
| AldelÃs aldelis.com | Food | Zaragoza, 🇪🇸 Spain | 164 | $48.7M | - | - | 21% |
| Sienz sienz.com | Manufacturing | Albuixech , 🇪🇸 Spain | 164 | $86.6M | - | - | 12% |
| Openbravo openbravo.com | Tech Services | Pamplona, 🇪🇸 Spain | 161 | $25.7M | - | - | - |
| RAIA raiagroup.org | Government | Madrid, 🇪🇸 Spain | 154 | $21.6M | - | - | 26% |
| Worldsensing worldsensing.com | Wireless | Barcelona, 🇪🇸 Spain | 148 | $57.0M | - | - | - |
| Velarte velarte.com | Food | Catarroja, 🇪🇸 Spain | 144 | $42.8M | - | - | 22% |
| NOLOGIN nologin.es | Tech Services | Zaragoza, 🇪🇸 Spain | 140 | $22.3M | - | - | 30% |
| INTIA intiasa.es | Utilities | Villava, 🇪🇸 Spain | 139 | $30.6M | - | - | 29% |
| Nemotec nemotec.com | Medical | Madrid, 🇪🇸 Spain | 131 | $54.9M | - | - | 20% |
| Excell excell.es | Consulting | Gijón, 🇪🇸 Spain | 121 | $26.6M | - | - | 20% |
| CDV cdv.travel | Travel Arrangements | Alicante, 🇪🇸 Spain | 119 | $16.7M | - | - | 25% |
| Quoty quoty.one | SaaS | Las Palmas de Gran Canaria, 🇪🇸 Spain | 118 | $18.9M | - | - | 30% |
| Uvasdoce uvasdoce.com | Farming | Monforte del Cid, 🇪🇸 Spain | 116 | $16.2M | - | - | 25% |
| Bianna biannarecycling.com | Energy | Celrà , 🇪🇸 Spain | 108 | $43.5M | - | - | 33% |
| Meteored tiempo.com | Internet | Almendricos, 🇪🇸 Spain | 108 | $24.9M | - | - | 19% |
| Hosteltur hosteltur.com | Internet News | Palma, 🇪🇸 Spain | 108 | $15.1M | - | - | 32% |
| Ibernova ibernova.com | Tech Services | 🇪🇸 Spain | 107 | $16.1M | - | - | 118% |
| Nasuvinsa nasuvinsa.es | Housing and Community Development | Pamplona, 🇪🇸 Spain | 106 | $14.8M | - | - | 22% |
| BilbaoPort bilbaoport.eus | Transportation | Santurtzi, 🇪🇸 Spain | 105 | $44.9M | - | $84.3M | 5% |
| Lodgify lodgify.com | Tech Services | 🇪🇸 Spain | 104 | $15.1M | 1.3M/mo | - | - |
| ASNA asna.com | Tech Services | 🇪🇸 Spain | 104 | $15.1M | - | - | - |
| Interactvty interactvty.com | Tech Services | Córdoba, 🇪🇸 Spain | 103 | $22.7M | - | - | 98% |
| Premonor premonor.com | Manufacturing | Bergondo, 🇪🇸 Spain | 101 | $48.3M | - | - | 28% |
| GasN2 gasn2.com | Manufacturing | Sentmenat, 🇪🇸 Spain | 100 | $48.0M | - | - | 33% |
| RocaSalvatella rocasalvatella.com | Consulting | Sant Cugat del Vallès, 🇪🇸 Spain | 100 | $22.0M | - | - | 25% |
| Diaphanum diaphanum.es | Finance | Madrid, 🇪🇸 Spain | 100 | $21.0M | - | - | 19% |
| jumbOnline jumbonline.com | Travel Arrangements | Palma de Mallorca, 🇪🇸 Spain | 98 | $13.7M | - | - | 46% |
| Séntisis sentisis.com | Fintech | 🇪🇸 Spain | 97 | $12.6M | - | - | - |
| Appsur appsur.es | Marketing Services | Córdoba, 🇪🇸 Spain | 97 | $11.6M | - | - | 143% |
| V2C v2charge.com | Automotive | Xirivella, 🇪🇸 Spain | 97 | $32.0M | - | $12.1M | 17% |
| Arktic arktic.es | Consulting | Madrid, 🇪🇸 Spain | 95 | $20.9M | - | - | 197% |
| DEREX derex.es | Personal Care Product Manufacturing | Rafelbunyol, 🇪🇸 Spain | 94 | $13.2M | - | - | 24% |
| INNOMARITIME lminnomaritime.com | Shipbuilding | El Puerto de Santa MarÃa, 🇪🇸 Spain | 93 | $13.0M | - | - | 31% |
| Inforhouse inforhouse.es | Tech Services | Santiago de Compostela, 🇪🇸 Spain | 92 | $13.3M | - | - | 24% |
| PINEDA pinedagroup.com | Architecture | Barcelona, 🇪🇸 Spain | 92 | $34.2M | - | - | 46% |
| JMM jmm.es | Furniture and Home Furnishings Manufacturing | Valencia, 🇪🇸 Spain | 92 | $12.9M | - | - | 35% |
| Milanuncios milanuncios.com | Internet | Madrid, 🇪🇸 Spain | 90 | $20.9M | - | - | 22% |
| ávita avitasystem.com | Construction | Pozuelo de Alarcón, 🇪🇸 Spain | 89 | $25.8M | - | - | 89% |
| BricoCentro bricocentro.es | Retail | Burgos, 🇪🇸 Spain | 89 | $20.2M | - | - | 22% |
| Itaca itaca-digital.com | Manufacturing | Pobla Tornesa, 🇪🇸 Spain | 88 | $42.4M | - | - | 21% |
| Proinsur proinsur.com | Automotive | Martos, 🇪🇸 Spain | 86 | $28.4M | - | - | 32% |
| BeGas begasmotor.com | Automotive | San AgustÃn del Guadalix, 🇪🇸 Spain | 86 | $28.4M | - | $29.2M | 12% |
| Experientia experientiagroup.com | Marketing | Madrid, 🇪🇸 Spain | 85 | $21.8M | - | - | 20% |
| Humaniza humanizacorporate.com | HR | Madrid, 🇪🇸 Spain | 85 | $17.1M | - | - | 25% |
| Mobusi mobusi.com | Marketing | Madrid, 🇪🇸 Spain | 84 | $21.0M | - | - | - |
| EXAFAN exafan.com | Ranching | San Mateo de Gállego, 🇪🇸 Spain | 84 | $11.8M | - | - | 22% |
| Devesa devesa.law | Legal | Madrid, 🇪🇸 Spain | 83 | $22.4M | - | - | 26% |
| Genei genei.es | Transportation | Oviedo, 🇪🇸 Spain | 83 | $27.2M | - | - | 60% |
| WIRIS wiris.com | Tech Services | 🇪🇸 Spain | 83 | $12.0M | - | - | - |
| SQRUPS sqrups.es | Retail | Madrid, 🇪🇸 Spain | 81 | $18.4M | - | - | 21% |
| FINEDA fineda.org | Venture Capital | Madrid, 🇪🇸 Spain | 81 | $11.3M | - | - | 145% |
| Dhemax dhemax.com | SaaS | Madrid, 🇪🇸 Spain | 81 | $17.8M | - | - | 25% |
| Frekuent frekuent.com | Finance | Barcelona, 🇪🇸 Spain | 79 | $16.6M | - | - | 61% |
| SENSIA sensia-solutions.com | Internet | Leganés, 🇪🇸 Spain | 78 | $18.0M | - | $19.7M | 28% |
| flowww flowww.es | SaaS | Madrid, 🇪🇸 Spain | 77 | $12.3M | - | $5.38M | 20% |
| Igeneris igeneris.com | Consulting | Madrid, 🇪🇸 Spain | 77 | $16.9M | - | - | 22% |
| Unibo holaunibo.com | Finance | Barcelona, 🇪🇸 Spain | 77 | $16.2M | - | - | 48% |
| Kiteris kiteris.com | Tech Services | Barcelona, 🇪🇸 Spain | 76 | $11.0M | - | - | 29% |
| BENIGAR benigar.com | Executive Offices | Alicante, 🇪🇸 Spain | 76 | $10.6M | - | - | 52% |
| Insurama insurama.com | Insurance | Madrid, 🇪🇸 Spain | 76 | $16.7M | - | - | 21% |
| ALPESA alpesa.com | Manufacturing | TAVERNES DE LA VALLDIGNA, 🇪🇸 Spain | 76 | $36.4M | - | - | 21% |
| SinVello! sinvelloporlaser.es | Health, Wellness & Fitness | Córdoba, 🇪🇸 Spain | 76 | $10.6M | - | - | 29% |
| Beonprice beonprice.com | Tech Services | 🇪🇸 Spain | 76 | $11.0M | - | - | - |
| CRIMASA crimasa.es | Facilities | Dos Hermanas, 🇪🇸 Spain | 75 | $16.1M | - | - | 34% |
| AXXON axxon.jobs | HR | GIRONA, 🇪🇸 Spain | 75 | $13.6M | - | - | 42% |
| Homeclub homeclub.com | Hospitality | Madrid, 🇪🇸 Spain | 74 | $16.9M | - | - | 61% |
| NABRAWIND nabrawind.com | Environmental | Pamplona, 🇪🇸 Spain | 74 | $14.0M | - | - | 23% |
| Neurored neurored.com | Logistics | 🇪🇸 Spain | 74 | $20.3M | - | - | 25% |
| Cotecnica cotecnica.es | Food | Bellpuig, 🇪🇸 Spain | 74 | $18.0M | - | - | 21% |
| Kelea kelea.es | Consulting | A Coruña, 🇪🇸 Spain | 74 | $14.7M | - | - | 80% |
| Agapea.com agapea.com | Retail | Málaga, 🇪🇸 Spain | 73 | $14.9M | - | - | 40% |
| Kanguro kanguro.com | Transportation | Sant Cugat del Vallés, 🇪🇸 Spain | 73 | $21.5M | - | - | 43% |
| Elaia grupoelaia.com | Farming | Valencia, 🇪🇸 Spain | 72 | $10.1M | - | - | 29% |
| LemuGroup lemugroup.com | Manufacturing | Ibarra, 🇪🇸 Spain | 70 | $33.6M | - | - | 21% |
| Prasfarma prasfarma.com | Pharma | Manlleu, 🇪🇸 Spain | - | - | - | - | -100% |