| 1 | Eulen
business service | €1.7B | 74,385 | 72 | A |
| 2 | IBERDROLA RENOVABLES ENERGIA SA | €822.6M | 3,000 | 70 | B |
| 3 | SOCIEDAD INMOBILIARIA DEL IGUALATORIO MEDICO QUIRURGICO SA | €351.0M | -- | 55 | C+ |
| 4 | NORTEGAS ENERGIA GRUPO SA | €225.0M | -- | 55 | C+ |
| 5 | SEGUROS LAGUN ARO SA | €197.0M | -- | 55 | C+ |
| 6 | delta seguridad,s.a. | €86.4M | 750 | 60 | C+ |
| 7 | Energía Athletic Petronor | €79.1M | 350 | 60 | C+ |
| 8 | IberLyzer | €79.1M | 350 | 60 | C+ |
| 9 | 3DB CONSULTORES SL | €70.0M | 350 | 60 | C+ |
| 10 | FindU | €58.4M | 350 | 60 | C+ |
| 11 | IBERINOX 88 SA | €50.0M | -- | 62 | C+ |
| 12 | IBERDROLA FINANZAS SA | €50.0M | -- | 62 | C+ |
| 13 | IBERDROLA FINANCIACION SA | €50.0M | -- | 62 | C+ |
| 14 | IBERDROLA SA | €50.0M | 249 | 62 | C+ |
| 15 | KARTERA 1 SL | €50.0M | 5 | 62 | C+ |
| 16 | IBERDROLA INGENIERIA Y CONSTRUCCION SA | €50.0M | 249 | 62 | C+ |
| 17 | IBERDROLA ENERGIA SA | €50.0M | -- | 62 | C+ |
| 18 | pandion partners s.l. | €44.1M | 125 | 60 | C+ |
| 19 | asociación vasca de periodistas - euskal kazetarien elkartea | €41.1M | 350 | 60 | C+ |
| 20 | euroservhi | €35.3M | 125 | 60 | C+ |
| 21 | Udalsarea 2030 | Udalerri Jasangarrien Euskal Sarea / Red Vasca de Municipios Sostenibles | €35.2M | 350 | 60 | C+ |
| 22 | FANOX I Protection Relays | €23.7M | 125 | 60 | C+ |
| 23 | PARTE SERVICIOS DE GESTIÓN SL | €20.5M | 125 | 60 | C+ |
| 24 | Albian Group | €18.9M | 125 | 60 | C+ |
| 25 | Construcciones FHIMASA, S.A. | €18.9M | 125 | 60 | C+ |
| 26 | CYCASA, CANTERAS Y CONSTRUCCIONES, S.A. | €18.9M | 125 | 60 | C+ |
| 27 | MADERAS SIAMA SL | €17.8M | 30 | 60 | C+ |
| 28 | JOBBE ETT by evolus | €17.7M | 350 | 60 | C+ |
| 29 | thyssenkrupp Materials Processing LAMINCER | €16.0M | 125 | 60 | C+ |
| 30 | FundacionK | €16.0M | 125 | 60 | C+ |
| 31 | Rivera Limpieza Integral y Servicios Auxiliares | €16.0M | 125 | 60 | C+ |
| 32 | COLEGIO OFICIAL DE INGENIEROS TECNICOS Y GRADOS EN MINAS Y ENERGIA DEL PAIS VASCO, NAVARRA, LA RIOJA Y SORIA | €14.7M | -- | 55 | C+ |
| 33 | Siter 2000 S.L. | €14.6M | 125 | 60 | C+ |
| 34 | BIDC · Bilbao Bizkaia Design Council | €12.6M | 125 | 60 | C+ |
| 35 | QUISER BIZKAIA SL | €12.4M | 30 | 60 | C+ |
| 36 | accesfluid, s.l. | €12.4M | 30 | 60 | C+ |
| 37 | PERFUMERIA ERLAI SL | €12.4M | 30 | 60 | C+ |
| 38 | ARGALUZA MARTIKORENA SL | €12.2M | 30 | 60 | C+ |
| 39 | INGENIERIA DE ARQUETIPOS Y ACABADOS SL | €12.2M | 30 | 60 | C+ |
| 40 | ALZAGA MOTOR SA | €12.2M | 30 | 60 | C+ |
| 41 | ALIMENTACION MIHI SL | €12.2M | 30 | 60 | C+ |
| 42 | Irontec: Internet y Sistemas sobre GNU/Linux | €11.8M | 125 | 60 | C+ |
| 43 | trd consulting | €10.6M | 30 | 60 | C+ |
| 44 | trebeki combining efforts s.l. | €10.6M | 30 | 60 | C+ |
| 45 | datua ia | €8.8M | 125 | 50 | C |
| 46 | STEP LANGUAGE SERVICES SL | €8.5M | 30 | 50 | C |
| 47 | JAVIER SAINZ ARTIACH SL | €8.0M | 30 | 50 | C |
| 48 | FACTOR 4 INGENIEROS SL | €8.0M | 30 | 50 | C |
| 49 | EXPLORATORY INVESTMENTS 2007 SL | €7.4M | 30 | 50 | C |
| 50 | KURUPI IMPORT EXPORT SL | €7.3M | 30 | 50 | C |
| 51 | EUROCARGO EXPRESS NORTE SL | €7.3M | 30 | 50 | C |
| 52 | MECANICA DE LA PEÑA EQUIPOS SL | €7.0M | 30 | 50 | C |
| 53 | EMFF project DOCC-OFF | €6.8M | 30 | 50 | C |
| 54 | FNXlng | €6.8M | 30 | 50 | C |
| 55 | DEMOBA GIJON SL | €6.6M | 30 | 50 | C |
| 56 | ESTUDIO TXURDINAGA SL | €6.3M | 30 | 50 | C |
| 57 | M&A Capital Partners, S.A. | €6.3M | 30 | 50 | C |
| 58 | Albiacoustic | €6.3M | 30 | 50 | C |
| 59 | Alberto Alonso Calefacción, S.A. | €6.0M | 30 | 50 | C |
| 60 | Piedmont Pacific | €6.0M | 30 | 50 | C |
| 61 | JARDINERIA CANTABRICA SL | €6.0M | 30 | 50 | C |
| 62 | VENTANAS DE CALIDAD PLUS SL | €6.0M | 30 | 50 | C |
| 63 | Xtrem-n: PCs Industriales para entornos agresivos | €5.7M | 30 | 50 | C |
| 64 | plan d | €5.5M | 30 | 50 | C |
| 65 | aurman open agency | €5.5M | 30 | 50 | C |
| 66 | GRAFICAS IRUGRAF SL | €5.5M | 30 | 50 | C |
| 67 | club de bolsa sarriko | €5.2M | 30 | 50 | C |
| 68 | WATCH ORIENT DISTRIBUCIONES SL | €5.1M | 30 | 50 | C |
| 69 | IBERICA DE INGENIERIA SIMULACION Y ANALISIS SL | €5.1M | 30 | 50 | C |
| 70 | AMS RODIS INTERNATIONAL SERVICE SL | €5.1M | 30 | 50 | C |
| 71 | EUROSIM SIMULADORES SL | €5.1M | 30 | 50 | C |
| 72 | TEFISA SISTEMAS SL | €5.1M | 30 | 50 | C |
| 73 | BILAKABIDE DERECHOS HUMANOS SL | €5.1M | 30 | 50 | C |
| 74 | ASITUR 24H SL | €5.1M | 30 | 50 | C |
| 75 | INFORMACION DE NUEVAS EMPRESAS Y NEGOCIOS SA | €5.1M | 30 | 50 | C |
| 76 | ADN DISEÑO INDUSTRIAL SL | €5.1M | 30 | 50 | C |
| 77 | FUNDICION MECANIZADO Y MONTAJES SL | €5.1M | 30 | 50 | C |
| 78 | WEFORMA DAMPFUNGSTECHNIK ESPAÑA SL | €5.1M | 30 | 50 | C |
| 79 | asociación bizgarri elkartea | €5.1M | 125 | 50 | C |
| 80 | parte servicios de gestión s.l. | €5.1M | 125 | 50 | C |
| 81 | clínica ortiz-vigón | €5.0M | 30 | 50 | C |
| 82 | GAC Psicología | €5.0M | 30 | 50 | C |
| 83 | Asociación de Hostelería de Bizkaia - Bizkaiko Ostalaritza Elkartea | €4.9M | 30 | 50 | C |
| 84 | jfg sport s.l | €4.9M | 30 | 50 | C |
| 85 | REFORMAS LEKUE SL | €4.5M | 30 | 50 | C |
| 86 | REVESTIMIENTOS DECORATIVOS VARELA SL | €4.5M | 30 | 50 | C |
| 87 | ASFALTOS URIBE, S.A. | €4.5M | 30 | 50 | C |
| 88 | andrasa - construcciones y reformas andrasa | €4.5M | 30 | 50 | C |
| 89 | Guascor Solar Corporation S.A. | €4.5M | 30 | 50 | C |
| 90 | northBIM | €4.5M | 30 | 50 | C |
| 91 | BAULAN CONSULTORIA DE DISEÑO SL | €4.5M | 30 | 50 | C |
| 92 | CRISTALERIA BLANCO SL | €4.5M | 30 | 50 | C |
| 93 | rafael matías tejidos s.l. | €4.3M | 30 | 50 | C |
| 94 | vasproject 2000 sl | €3.9M | 30 | 50 | C |
| 95 | beclever it solutions | €3.9M | 30 | 50 | C |
| 96 | silenole sl | €3.9M | 30 | 50 | C |
| 97 | fonexion spain s.a. | €3.9M | 30 | 50 | C |
| 98 | gesclean facility services | €3.8M | 30 | 50 | C |
| 99 | SOLARWELL PARQUES FOTOVOLTAICOS SL | €3.8M | 30 | 50 | C |
| 100 | ENERGIAS RENOVABLES EL ABRA SL | €3.8M | 30 | 50 | C |