Onze koren 
- Amstel River Singers (v)
- Between Two Rivers (v)
- Building Bridges Chorus (v)
- Duketown Barbershop Singers (m)
- Dutch Pride (v)
- Mainport Barbershop Singers (m)
- Miracle Sound (v)
- Mixed Nuts (mix)
- Sound Waves (v)
- Southern Comfort Barber Gals (v)
- The Gaggling Ganders Gang (m)
- The New Harvest Singers (v)
- The New Land Singers (v)
- The Skyline Sisters (v)
- T-SiNG! (m)
- Valley Voices Vocal Group (v)
- Vocal Group Route Sixteen (v)
Onze kwartetten 
- About Time (v)
- Around the Bar (v)
- Back on Track (v)
- Bubble Up (v)
- Cloud 9 (v)
- Detour (v)
- Fruity Island Boys (m)
- Fyra (mix)
- Instant Fanboys (m)
- Men2B (m)
- Mrs Jones (v)
- Natural Blend (m)
- Game On! (mix)
- New4 (v)
- O!Boy (m)
- Project X (mix)
- QuartetQ (m)
- SaFa (v)
- Stop Talking (v)
- Switch (v)
- Tune In (v)
- Unlimited (m)