| Team |
No |
Driver |
Class |
Chassis |
Engine |
Rounds |
| Hitech Racing |
1 |
Max Chilton |
C |
Dallara F308 |
Mercedes HWA |
All |
| 2 |
Walter Grubmüller |
C |
Dallara F308 |
Mercedes HWA |
All |
| Carlin Motorsport |
3 |
Brendon Hartley |
C |
Dallara F308 |
Mercedes HWA |
All |
| 4 |
Jaime Alguersuari |
C |
Dallara F308 |
Mercedes HWA |
All |
| 17 |
Oliver Turvey |
C |
Dallara F308 |
Mercedes HWA |
All |
| 18 |
Sam Abay |
C |
Dallara F308 |
Mercedes HWA |
All |
| 42 |
Henry Surtees |
N |
Dallara F305 |
Mugen-Honda |
21–22 |
| 43 |
Adriano Buzaid |
N |
Dallara F305 |
Mugen-Honda |
21–22 |
| 54 |
Kristján Einar |
N |
Dallara F305 |
Mugen-Honda |
1–20 |
| 56 |
Andrew Meyrick |
N |
Dallara F305 |
Mugen-Honda |
1–12 |
| Martin O'Connell |
13–14 |
| Nexa Racing |
5 |
Viktor Jensen |
C |
Dallara F308 |
Mugen-Honda |
3–14 |
| 55 |
Craig Reiff |
N |
Dallara F306 |
Mugen-Honda |
1–8, 15–18 |
| Räikkönen Robertson Racing |
6 |
Henry Arundel |
C |
Dallara F308 |
Mercedes HWA |
All |
| 24 |
John Martin |
C |
Dallara F308 |
Mercedes HWA |
All |
| 25 |
Alistair Jackson |
C |
Dallara F308 |
Mercedes HWA |
1–4 |
| Clemente de Faria, Jr. |
17–18 |
| 26 |
Atte Mustonen |
C |
Dallara F308 |
Mercedes HWA |
All |
| Fortec Motorsport |
7 |
Sebastian Hohenthal |
C |
Dallara F308 |
Mercedes HWA |
1–16 |
| Dean Smith |
21–22 |
| 8 |
Marcus Ericsson |
C |
Dallara F308 |
Mercedes HWA |
All |
| 14 |
Philip Major |
C |
Dallara F308 |
Mercedes HWA |
All |
| T-Sport |
9 |
Sergio Pérez |
C |
Dallara F308 |
Mugen-Honda |
All |
| 53 |
Steven Guerrero |
N |
Dallara F306 |
Mugen-Honda |
All |
| 57 |
Salman Al Khalifa |
N |
Dallara F306 |
Mugen-Honda |
1–20 |
| Callum MacLeod |
21–22 |
| Ultimate Motorsport |
11 |
Esteban Guerrieri |
C |
Mygale M-08F3 |
Mercedes |
1–6, 19–20 |
| Alistair Jackson |
7–18 |
| 12 |
Ricardo Teixeira |
C |
Mygale M-08F3 |
Mercedes |
1–20 |
| 13 |
Michael Devaney |
C |
Mygale M-08F3 |
Mercedes |
1–8 |
| 16 |
9–20 |
| Eurotek Motorsport |
15 |
Oliver Oakes |
C |
Dallara F308 |
Mercedes HWA |
3–4, 15–16 |
| 85 |
I |
17–22 |
| JTR with Marshall Westland |
28 |
Nick Tandy |
C |
Mygale M-08F3 |
Mercedes HWA |
1–18, 21–22 |
| Fluid Motorsport |
50 |
Jay Bridger |
N |
Dallara F307 |
Mugen-Honda |
All |
| 51 |
Stefan Wilson |
N |
Dallara F307 |
Mugen-Honda |
All |
| C F Racing |
52 |
Hywel Lloyd |
N |
Dallara F306 |
Mugen-Honda |
All |
| Team Loctite |
58 |
Niall Quinn |
N |
Dallara F306 |
Mugen-Honda |
1–4, 7–8 |
| 59 |
Jordan Williams |
N |
Dallara F306 |
Mugen-Honda |
9–14 |
| Litespeed F3 |
60 |
Callum MacLeod |
N |
SLC R1 |
Mugen-Honda |
9–10 |
| 61 |
Jonathan Legris |
N |
SLC R1 |
Mugen-Honda |
13–14, 17–18, 21–22 |
| Ombra Racing |
71 |
Matteo Chinosi |
I |
Dallara F308 |
Mugen-Honda |
5–6 |
| 72 |
Federico Leo |
I |
Dallara F308 |
Mugen-Honda |
5–6 |
| HBR Motorsport |
73 |
Daniel Campos-Hull |
I |
Dallara F308 |
Mercedes HWA |
15–16 |
| 74 |
Basil Shaaban |
I |
Dallara F308 |
Mercedes HWA |
15–16 |
| Cesario Formula |
84 |
Clemente de Faria, Jr. |
I |
Dallara F308 |
Mugen-Honda |
21–22 |
|
| Icon |
Class |
| C |
Championship |
| N |
National |
| I |
Invitation |
|