J&J Design
| Company type | Privately held company |
|---|---|
| Industry | Naval architecture, Industrial design, Marine engineering |
| Founded | 1983 |
| Founders | Japec Jakopin and Jernej Jakopin |
| Headquarters | Ljubljana, Slovenia |
Area served | Worldwide |
| Services | Yacht design and engineering |
| Website | www |
J&J Design is a naval architecture, design, boat and production-process engineering company, mainly for high-volume production sail and powerboat builders, headquartered in Slovenia. It introduced the carbon-epoxy technology from the America's Cup into cruising sailboats with the Shipman line. J&J also designed and engineered the first serial production hybrid powerboats, the Greenline Hybrid range.