| 2025–2026 | Aser Palacios | 2004 | 12 | 0 |
| 2025 | Izei Hernandez | 2007 | 30 | 4 |
| 2025 | Jon Ander Barriga | 2006 | 1 | 0 |
| 2025 | Manex Irizar | 2004 | 1 | 0 |
| 2024–2026 | Andoni Arzak | 2003 | 48 | 5 |
| 2024–2025 | Daniel Lyubomirov | 2004 | 3 | 0 |
| 2024–2025 | Julen Jon Guerrero | 2004 | 28 | 4 |
| 2024–2026 | Julen Lartitegi | 2003 | 22 | 0 |
| 2024 | Xanet Olaiz | 2005 | 60 | 1 |
| 2023 | Aimar González De Heredia | 2003 | 88 | 8 |
| 2023 | Ander Sánchez Fernández De Larrea | 2004 | 41 | 4 |
| 2023–2026 | Egoitz Muñoz | 2004 | 91 | 8 |
| 2023–2026 | Gaizka García | 2005 | 25 | 0 |
| 2023 | Joaquín Panichelli | 2002 | 6 | 1 |
| 2022–2025 | Eneko Ortiz | 2003 | 88 | 2 |
| 2022–2026 | Lander Pinillos | 2003 | 70 | 11 |
| 2022–2026 | Markel Ruiz | 2004 | 3 | 0 |
| 2022–2024 | Maroan Sannadi | 2001 | 59 | 17 |
| 2022–2023 | Unax Álvarez | 2002 | 11 | 1 |
| 2020–2023 | Álex Balboa | 2001 | 37 | 0 |
| 2020–2021 | Ekhiotz Orobiogoikoetxea | 2002 | 9 | 4 |
| 2020–2022 | Hugo Pérez | 2002 | | |
| 2019–2020 | Gaizka Martínez | 1996 | 0 | 0 |
| 2019–2023 | Imanol Baz | 2001 | 58 | 4 |
| 2019–2020 | José Luis Rodríguez | 1998 | 24 | 2 |
| 2019–2022 | Nacho Castillo | 2000 | 28 | 2 |
| 2019–2024 | Unai Ropero | 2001 | 94 | 29 |
| 2018–2023 | Abdallahi Mahmoud | 2000 | 38 | 2 |
| 2018–2022 | Abde Rebbach | 1998 | 50 | 19 |
| 2018–2019 | Aitor Arego | 1997 | 16 | 0 |
| 2018–2020 | Borja Sainz | 2001 | 24 | 6 |
| 2018–2020 | Gonzi | 1998 | 44 | 0 |
| 2018–2020 | Javi López | 2002 | 19 | 0 |
| 2018–2022 | Jesús Owono | 2001 | 22 | 0 |
| 2018–2020 | Jorge Bengoetxea | 1996 | 44 | 7 |
| 2018–2020 | Oier Sarriegi | 1997 | 42 | 2 |
| 2018–2019 | Yan Yiming | 1998 | | |
| 2017–2020 | Alexander Gualda | 1998 | 41 | 3 |
| 2017–2023 | Aritz Castro | 1998 | 41 | 0 |
| 2017–2020 | Iñaki Elejalde | 1999 | 57 | 8 |
| 2017–2020 | Iñigo Arzuaga | 1997 | 58 | 4 |
| 2017 | Julen Huidobro | 1995 | 5 | 0 |
| 2017–2021 | Pepe Blanco | 1999 | 31 | 0 |
| 2016–2018 | Aritz Huete | 1996 | | |
| 2016–2018 | Ioritz Landeta | 1995 | 48 | 0 |
| 2016–2020 | Paulino de la Fuente Gómez | 1997 | | |
| 2015–2016 | Jon Aranda Goenaga | 1993 | 34 | 0 |
| 2015–2021 | Víctor López Ibáñez | 1997 | 130 | 15 |
| 2014–2020 | Erik Ruiz | 1995 | 156 | 6 |
| 2014–2018 | Martín Aguirregabiria | 1996 | 107 | 2 |
| 2013–2017 | Altair Reyes | 1994 | | |
| 2013–2017 | Asier Benito | 1995 | 99 | 43 |
| 2013–2014 | Jon Arzamendi | 1992 | | |
| 2013–2015 | Jon Manuel Vega | 1992 | 63 | 2 |
| 2013–2014 | Mikel Vesga | 1993 | 8 | 0 |
| 2012–2014 | Ander Aldai Valverde | 1994 | 19 | 2 |
| 2012–2015 | Diego Carrio | 1995 | 31 | 0 |
| 2012–2017 | Einar Galilea | 1994 | 89 | 3 |
| 2012–2017 | Sergio Llamas | 1993 | 49 | 7 |
| 2012–2013 | Sergio Pérez Leyva | 1993 | 21 | 0 |
| 2012–2013 | Txema Pan | 1994 | 24 | 6 |
| 2011–2012 | Álex Vallejo | 1992 | 18 | 0 |
| 2011–2013 | Iván Pérez Cuevas | 1993 | 16 | 1 |
| 2011–2014 | Kevin Calle | 1993 | 93 | 6 |
| 2011–2015 | Sergio Herrera (1993 doğumlu futbolcu) | 1993 | 45 | 0 |
| 2010–2013 | Josetxo Lapoujade Garde | 1988 | 13 | 2 |
| 2009–2010 | Matias Chiacchio | 1988 | | |
| 2008–2012 | Javier Montoya Monente | 1991 | | |
| 2008–2009 | Jhonatan Rojas | 1988 | 6 | 1 |
| 2007–2008 | Igor Martínez | 1989 | 13 | 1 |
| 2007–2009 | Jonathan Reguero | 1989 | 46 | 17 |
| 2007–2009 | Óscar de Marcos | 1989 | 16 | 4 |
| 2006–2008 | Alaín Barrón | 1985 | 28 | 1 |
| 2006–2007 | Alberto Morgado Liberal | 1990 | 9 | 0 |
| 2006–2008 | Javier Jiménez Camarero | 1987 | | |
| 2006–2008 | Rubén Royo | 1987 | 28 | 4 |
| 2005 | Abel Segovia | 1979 | 17 | 2 |
| 2005–2006 | Alain Arroyo | 1982 | 4 | 0 |
| 2005–2006 | Eneko López de Munain | 1985 | 33 | 0 |
| 2005–2006 | Fernando Lumbreras | 1984 | 13 | 0 |
| 2005–2006 | Francesc Piera Martínez | 1987 | 2 | 0 |
| 2005–2006 | Gaizka Toquero | 1984 | 29 | 2 |
| 2005–2006 | Ian Uranga | 1987 | 32 | 3 |
| 2005–2902 | Javier Carpio | 1984 | 27 | 0 |
| 2005–2008 | Marcos Gondra Krug | 1987 | | |
| 2004–2005 | Álex Lombardero | 1979 | 13 | 1 |
| 2004–2006 | Fernando Seoane | 1983 | 61 | 4 |
| 2004–2006 | Ibai Rejas García | 1982 | 54 | 4 |
| 2003–2004 | Alberto Suárez | 1981 | 32 | 6 |
| 2003–2005 | Andrea Orlandi | 1984 | 58 | 8 |
| 2003–2005 | César Remón | 1985 | 3 | 0 |
| 2003–2005 | Iñaki Garmendia | 1981 | 64 | 0 |
| 2002–2003 | Fernando Esparza Aizcorbe | 1979 | 33 | 5 |
| 2002–2006 | Gabriel Gómez Román | 1985 | 57 | 10 |
| 2002–2005 | Iván Gómez | 1980 | 41 | 0 |
| 2002 | Jaime Cuesta | 1981 | | |
| 2002–2004 | Rubén Pérez Chueca | 1980 | 68 | 0 |
| 2001–2004 | Ignacio Fernández Rodríguez | 1980 | 63 | 2 |
| 2001–2002 | Iván Moreno Dellano | 1981 | | |
| 2001–2002 | Juan Cruz Ochoa | 1979 | 26 | 2 |
| 2001–2002 | Rubén Vega | 1977 | 35 | 10 |
| 2000–2003 | Ángel Sánchez Martín | 1982 | 57 | 3 |
| 2000–2004 | Eneko Romo | 1979 | 98 | 34 |
| 2000–2004 | Iñigo Calderón | 1982 | 71 | 1 |
| 2000–2002 | Juan Epitié | 1976 | 29 | 10 |
| 2000–2002 | Juan Pablo Colinas | 1978 | 69 | 0 |
| 2000–2001 | Xabier Sánchez Bringas | 1978 | 35 | 0 |
| 1999–2002 | Asier Salcedo | 1980 | 102 | 16 |
| 1999–2001 | Iker Gabarain | 1977 | 61 | 0 |
| 1999–2004 | Josu Sarriegi | 1979 | 100 | 3 |
| 1998–1999 | Iván Agustín | 1979 | | |
| 1998–2003 | Pablo Lusarreta | 1976 | 68 | 9 |
| 1998–1999 | Sergio Villanueva Fernández | 1975 | | |
| 1998–1999 | Tonet | 1979 | | |
| 1997 | Joseba Irazusta | 1972 | | 10 |
| 1996–1998 | Edu Roldán | 1977 | | |
| 1996–2000 | Sergio Gámiz | 1978 | | |
| 1995–1997 | Arturo Igoroin Sanjurjo | 1976 | 66 | 10 |
| 1981–1983 | Ernesto Valverde | 1964 | 40 | 11 |
| 1978–1980 | Andoni Zubizarreta | 1961 | 32 | 0 |
| ? | Adrián Fuentes González | 1996 | | |
| ? | Jacinto Elá | 1982 | | |
| ? | Joseda Álvarez | 2001 | | |
| ?–1980 | Juan Carlos Gómez de Segura | 1957 | 33 | 9 |
| ? | Selu Diallo | 2003 | | |