- Twenty-four teams and 168 riders will line up at the start
The 44th edition of the Clásica de San Sebastián will feature 18 UCI WorldTeams:
- Alpecin‑Deceuninck
- Arkéa‑B&B Hotels
- Bahrain Victorious
- Cofidis
- Decathlon AG2R La Mondiale Team
- EF Education‑EasyPost
- Groupama‑FDJ
- Ineos Grenadiers
- Intermarché‑Wanty
- Lidl‑Trek
- Movistar Team
- Red Bull‑BORA‑Hansgrohe
- Soudal Quick‑Step
- Team Jayco AlUla
- Team Picnic PostNL
- Team Visma‑Lease a Bike
- UAE Team Emirates XRG
- XDS Astana Team
Because of the UCI ranking, out of the three teams eligible to race the Clásica, only one has chosen to participate
- Uno-X Mobility
In addition, the organisers have invited 5 more teams:
- Burgos BH Burpellet
- Caja Rural-Seguros RGA
- Equipo Kern Pharma
- Euskaltel-Euskadi
- Tudor Pro Cycling Team
The 24 teams will race in the 44th edition of the Clásica San Sebastián, when 168 riders will compete to ascend the podium on 2 August in San Sebastián.