| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | 13 | Aitor | 1991-05-03 | 182 | 70 | 2018-06-30 | |
| GK | 1 | Munir Mohand Mohamedi | 1989-05-10 | 189 | 80 | ||
| D | 3 | Adrián Ripa | 1985-07-12 | 177 | 71 | 2018-06-30 | |
| D | 24 | Alexander Callens | 1992-05-04 | 184 | 2018-06-30 | ||
| D | 16 | Carlos Gutiérrez | 1991-11-04 | 191 | 78 | 2017-06-30 | |
| D | 15 | Daniel Calvo | 1994-04-01 | 180 | 2017-06-30 | ||
| D | 5 | Francisco Regalón | 1987-02-19 | 182 | 74 | 2017-06-30 | |
| D | 14 | Luis Valcarce | 1993-02-03 | 175 | - | 2017-06-30 | |
| D | 22 | Pedro Orfila | 1988-03-06 | 175 | 2017-06-30 | ||
| D | 17 | Unai Medina | 1990-02-16 | 177 | 78 | 2018-06-30 | |
| M | 8 | Alberto Escassi | 1989-02-28 | 184 | 74 | 2017-06-30 | |
| M | 23 | Eneko Capilla | 1995-06-13 | 2017-06-30 | |||
| M | 19 | Iñigo Ruiz de Galarreta | 1993-08-06 | 174 | 66 | 2018-06-30 | |
| M | 6 | Iñigo Pérez | 1988-01-18 | 178 | 74 | 2017-06-30 | |
| M | 10 | Julio Àlvarez | 1981-05-01 | 180 | 74 | 2017-06-30 | |
| M | 21 | Marc Mateu | 1990-06-16 | 180 | 2017-06-30 | ||
| M | 4 | Marc Pedraza | 1987-02-06 | 183 | 74 | 2017-06-30 | |
| M | 27 | Nacho Sánchez | 1993-02-11 | 177 | 2017-06-30 | ||
| F | 9 | Javi Acuña | 1988-06-23 | 176 | 70 | 2018-06-30 | |
| F | 7 | Manu Del Moral | 1984-02-25 | 186 | 84 | 2018-06-30 | |
| F | 20 | Pablo Valcarce | 1993-02-03 | 172 | 2018-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Unai Elgezabal (D) | CD Numancia | SD Eibar | Confirmed | |
| 30.Jun | Antonio Martínez (M) | CD Numancia | AD Alcorcon | Confirmed | |
| 30.Jun | Alex Alegría (F) | CD Numancia | Real Betis | Confirmed | |
| 30.Jun | David Concha (F) | CD Numancia | Real Sociedad | Confirmed | |
| 27.Jan | Miguel Palanca (M) | CD Numancia | Adelaide United | Confirmed | |
| 25.Aug | Domingo Cisma (D) | CD Numancia | UD Almería | Confirmed |