1940 – 2015 • Website
| Name | LOA (ft) | First Built | Last Built | Rig |
|---|---|---|---|---|
| CORINTHIAN 41 | 41 | 1965 | 1993 | Masthead Ketch |
| ENDEAVOUR 32 | 32 | 1976 | 1982 | Masthead Sloop |
| ENDEAVOUR 32 CB | 32.33 | 1976 | 1979 | Masthead Sloop |
| IRWIN 1/2 TON | 32 | 1976 | Masthead Sloop | |
| IRWIN 1/2 TON MKII | 32 | 1977 | Masthead Sloop | |
| IRWIN 10/4 | 25.33 | 1975 | 1982 | Cutter |
| IRWIN 21 FREE SPIRIT | 21 | 1980 | Fractional Sloop | |
| IRWIN 23 | 23 | 1968 | Masthead Sloop | |
| IRWIN 24 | 24 | 1968 | Masthead Sloop | |
| IRWIN 25 | 25.42 | 1969 | 1976 | Masthead Sloop |
| IRWIN 27 | 27.08 | 1967 | Masthead Sloop | |
| IRWIN 28 | 28 | 1970 | Masthead Sloop | |
| IRWIN 28 MK III | 28.5 | 1974 | 1976 | Masthead Sloop |
| IRWIN 28 MK IV | 28.42 | 1976 | 1981 | Masthead Sloop |
| IRWIN 3/4 TON | 34 | 1976 | Masthead Sloop | |
| IRWIN 30 | 30 | 1976 | Masthead Sloop | |
| IRWIN 30 CITATION | 30 | 1977 | Masthead Sloop | |
| IRWIN 30 COMPETITION | 30 | 1972 | Masthead Sloop | |
| IRWIN 31 | 31.08 | 1968 | Masthead Sloop | |
| IRWIN 31 CITATION | 31.25 | 1983 | Masthead Sloop | |
| IRWIN 32 | 32 | 1970 | 1974 | Masthead Sloop |
| IRWIN 32 CITATION | 32.33 | 1985 | Masthead Sloop | |
| IRWIN 32.5 | 32.5 | 1972 | Masthead Sloop | |
| IRWIN 33 | 33 | 1974 | Masthead Sloop | |
| IRWIN 33 MKII | 33 | 1976 | Masthead Sloop | |
| IRWIN 34 | 34.6 | 1982 | Masthead Sloop | |
| IRWIN 34 CITATION | 34.25 | 1979 | 1985 | Masthead Sloop |
| IRWIN 35 CITATION | 35.42 | 1986 | Masthead Sloop | |
| IRWIN 37 1 TON | 37 | 1972 | Masthead Sloop | |
| IRWIN 37 COMPETITION | 37 | 1973 | Masthead Sloop | |
| IRWIN 37-1 | 37 | 1971 | 1975 | Masthead Sloop |
| IRWIN 37-2 | 37 | 1976 | Cutter | |
| IRWIN 37-3 | 37 | 1976 | Cutter | |
| IRWIN 37-4 | 37 | 1977 | 1982 | Cutter |
| IRWIN 37-5 | 37 | 1982 | 1982 | Cutter |
| IRWIN 38 CITATION | 38 | 1986 | Masthead Sloop | |
| IRWIN 38-1 | 37.75 | 1970 | Masthead Sloop | |
| IRWIN 38-2 | 40 | 1984 | 1988 | Masthead Sloop |
| IRWIN 39 CITATION | 39.75 | 1979 | Masthead Sloop | |
| IRWIN 40 CITATION | 40.83 | 1978 | Masthead Sloop | |
| IRWIN 41 | 41.5 | 1982 | Masthead Ketch | |
| IRWIN 41 CITATION | 40.77 | 1982 | Masthead Sloop | |
| IRWIN 42 | 42 | 1976 | Masthead Sloop | |
| IRWIN 43 (1971) | 43.5 | 1971 | Masthead Sloop | |
| IRWIN 43-CC MKI | 45.5 | 1984 | Cutter | |
| IRWIN 43-CC MKII | 45.5 | 1985 | Cutter | |
| IRWIN 43-CC MKIII | 45.5 | 1986 | Cutter | |
| IRWIN 45 | 45 | 1970 | Masthead Sloop | |
| IRWIN 46 | 45.5 | 1980 | Staysail Ketch | |
| IRWIN 52 | 52 | 1976 | 1985 | Staysail Ketch |
| IRWIN 52-2 | 52 | 1982 | 1988 | Cutter |
| IRWIN 52-3 | 52 | 1987 | Cutter | |
| IRWIN 54 | 54 | 1988 | Staysail Ketch | |
| IRWIN 65/68 | 64.83 | 1981 | Staysail Ketch | |
| IRWIN AVANTI 42 | 42.5 | 1975 | 1978 | Masthead Sloop |
| IRWIN MINI-TON | 20.81 | 1978 | Fractional Sloop |