Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 12/2017 |  | David Mackey | MA | |||
| 10/2017 | | Dylan O'Connor | DF | |||
| 10/2017 | | Shane Heffernan | FW | |||
| 08/2017 | | Luke Rossiter | MF | |||
| 08/2017 |  | Jake Ellis | FW | |||
| 08/2017 | | Ryan Coulter | GK |  | Drogheda United | Drogheda |
| 02/2017 | | Ryan Robinson | DF |  | Shelbourne FC | Shelbourne FC |
| 01/2017 | | Anthony Flood | FW |  | Marconi Stallions | Marc. Stallions |
| 01/2017 | | Derek Foran | DF |  | Sacramento Republic | Sacramento Rep |
| 01/2017 | | Keith Buckley | MF |  | Bohemian FC | Bohemians |
| 01/2017 | | Gary McCabe | MF |  | Shamrock Rovers | Shamrock |
| 01/2017 | | Calvin Rogers | MF | |||
| 01/2017 | | Jamie Aherne | FW | | Shamrock Rovers | Shamrock |
| 01/2017 | | Aaron Greene | FW |  | Limerick FC | Limerick FC |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2017 | | Alan Kehoe | DF |  | Longford Town | Longford Town |
| 07/2017 | | Ryan Robinson | DF |  | St. Mochta's | St. Mochta's |
| 07/2017 | | Dylan Connolly | MF |  | Dundalk FC | Dundalk |
| 07/2017 | | Conor Earley | MF |  | Cabinteely FC | Cabinteely FC |
| 01/2017 | | Sean Fogherty | GK |  | Carrick Rangers | Carrick Rangers |
| 01/2017 | | Stephen McGuinness | GK | | Drogheda United | Drogheda |
| 01/2017 | | Luke Clucas | DF | | Cabinteely FC | Cabinteely FC |
| 01/2017 | | Paul Finnegan | DF | | Longford Town | Longford Town |
| 01/2017 | | Chris Lyons | FW | | Shelbourne FC | Shelbourne FC |
| 01/2017 | | Gareth McDonagh | FW | | Bohemian FC | Bohemians |