- Sync -- Synchro
- Synchro & JVA -- Synchronized DNA
- Synchronized Mindz -- Syncom Data
- Syncop -- Syncopation
- Syncopators -- Syncrophase
- Syncrosystem -- Syndel
- Syndenham & Chandler -- Syndicate 305
- Syndicate & Jizz -- Syndicated People
- Syndicato -- Syndrome
- Syndromeda -- Synergia
- Synergic -- Synergy (Jazz)
- Synergy Records Presents -- Synethia
- Synex -- Syngularity
- Synia and Jeff McQuillian -- Synia & Jeff McQuillan