Johannes Helsen
| Scheepstype | Ontwerp jaar | Categorie |
|---|---|---|
| Helsen 22 | 1971 | Zeilboot |
| Watkins 23 XL | 1973 | Zeilboot |
| Montego 19 | 1976 | Zeilboot |
| Montego 20 | 1976 | Zeilboot |
| International 21 | 1976 | Zeilboot |
| Explorer 21 | 1977 | Zeilboot |
| Montego 25 | 1980 | Zeilboot |
| Sovereign 20 | 1982 | Zeilboot |
Scheepswerven