- N. Dams
Borussia DortmundFree—1 Jul 2023 
P. Grave
VfL BochumLoan—1 Jul 2023
M. Stiepermann
SC Paderborn 07Free—1 Jul 2022- J. HenkeSC Paderborn 07Loan—1 Jul 2022
- D. BilogrevićSC Paderborn 07Loan—1 Jul 2021
- M. CordiSC Paderborn 07Free—1 Jul 2021
M. RömlingVfL BochumLoan—6 Jan 2021- L. HoltkampVfL BochumLoan—2 Jan 2021
- S. ŠarićSC Paderborn 07Free—24 Jan 2018
- T. Uphoff
SV ElversbergFree—1 Jan 2018 - Robin WodniokBorussia Dortmund——1 Jan 2018
- J. Holldack
BrentfordLoan—20 Jan 2017 - A. ZiegeVfL Bochum——1 Jan 2017
- Tristan Duschke
Bayer LeverkusenFree—1 Jul 2016 - Sandy HušićBorussia Dortmund——1 Jul 2016
- K. PytlikVfL BochumFree—1 Jul 2016
- Dylan OberliesVfL Bochum——1 Jan 2016
Dilhan Demir
Gençlerbirliği S.K.Free Transfer—5 Aug 2025
R. Grym
UNA StrassenFree Transfer—30 Jul 2025- Y. Qashi
Bayern MünchenReturn from loan—29 Jun 2025 - Y. QashiBayern MünchenReturn from loan—29 Jun 2025
- Benedikt WimmerBayern MünchenReturn from loan—29 Jun 2025
- P. GraveVfL Bochum——1 Jul 2024
- J. HenkeSC Paderborn 07——1 Jul 2023
- L. HoltkampVfL Bochum——1 Jul 2021
- U. Osawe
Progres Niederkorn——31 Jan 2020 - Tarık Baydemir
GalatasarayFree—6 Feb 2017 - Tristan DuschkeBayer LeverkusenFree—1 Jul 2014
- Enes Topal
Borussia Mönchengladbach——1 Jul 2014 - D. NiepsujVfL Bochum——1 Jul 2014