Calcio Como 1907 Under 19
- AC Monza U19
- AC Pistoiese Under 19
- AC Renate Under 19
- ACN Siena 1904 Under 19
- ADC Viterbese Castrense Under 19
- AS Avellino Under 19
- AS Bisceglie 1913 Don Uva APD Under 19
- AS Giana Erminio Under 19
- ASD Arzignano Valchiampo Under 19
- ASD Sicula Leonzio Under 19
- ASDC Gozzano Under 19
- AZ Picerno Under 19
- Alma Juventus Fano 1906 Under 19
- Aurora Pro Patria 1919 Under 19
- Bari Under 19
- Calcio Catania U19
- Calcio Como 1907 Under 19
- Calcio Lecco 1912 Under 19
- Calcio Padova Under 19
- Carpi FC 1909 Under 19
- Carrarese Calcio Under 19
- Casertana FC Under 19
- Cesena Under 19
- FC Rieti Under 19
- FC Südtirol Under 19
- FeralpiSalò Srl Under 19
- Fermana Under 19
- Gubbio Under 19
- Imolese Calcio 1919 Under 19
- LR Vicenza Virtus Under 19
- Modena FC 2018 Under 19
- Monopoli Calcio 1966 Under 19
- Novara Under 19
- Olbia Calcio Under 19
- Paganese Calcio 1926 Under 19
- Piacenza Calcio Under 19
- Pro Vercelli Under 19
- Ravenna Calcio Under 19
- Reggina 1914 Under 19
- Reggio Audace FC Under 19
- Rimini Calcio FC Under 19
- SS Rende Under 19
- SS Sambenedettese Calcio Under 19
- SSD Potenza Calcio Under 19
- Teramo Calcio Under 19
- Ternana Calcio Under 19
- UC AlbinoLeffe Under 19
- US Alessandria Calcio 1912 Under 19
- US Catanzaro 1929 U19
- US Lecce Under 19 II
- US Pergolettese Under 19
- US Pianese ASD Under 19
- US Pontedera 1912 Under 19
- US Triestina Calcio Under 19
- US Vibonese Calcio Under 19
- USD Cavese 1919 Under 19
- Unione Sportiva Arezzo Under 19
- Virtus Francavilla Under 19
- Virtus Verona Under 19
- Vis Pesaro Under 19