Teams total 569
| Name | From | To | Nationality |
|---|---|---|---|
| Arkéa - Samsic | 2019 | 2023 |  |
| Ariostea | 1984 | 1993 |  |
| Arbo Wels Gourmetfein | 2008 | 2009 |  |
| Arbö KTM - Gebrüder Weiss | 2010 | 2010 | |
| Aqua Blue Sport | 2017 | 2018 |  |
| Androni Giocattoli - Sidermec | 2010 | 2021 | |
| Andalucia - Paul Versan | 2005 | 2006 |  |
| Andalucia - Cajasur | 2007 | 2010 | |
| Amore Vita - Selle SMP | 2014 | 2018 |  |
| Amore e Vita - McDonalds | 2006 | 2009 |  |
| Amore e Vita - Galatron | 1993 | 1996 | |
| Amore e Vita - Forzacore | 1997 | 1998 | |
| Amore e Vita - Fanini | 1990 | 1992 | |
| Amore e Vita - Beretta | 1999 | 2005 | |
| Amore e Vita | 2012 | 2013 | |
| Amica Chips - Tacconi Sport | 2000 | 2000 | |
| Amica Chips - Knauff | 2009 | 2009 |  |
| Amica Chips - Costa de Almeria | 1999 | 1999 | |
| Amaya Seguros | 1991 | 1993 | |
| Alexia Alluminio | 2000 | 2001 | |
| Alessio - Bianchi | 2004 | 2004 | |
| Alessio | 2000 | 2003 | |
| Aki - Gipiemme | 1995 | 1996 | |
| AGU Sport I | 1979 | 1983 |  |
| Agro - Adler - Brandenburg | 1997 | 2001 |  |
