Koehler & Isaak
| Koehler & Isaak | |
|---|---|
| Practice information | |
| Founders | Richard Koehler; Nicholas Isaak | 
| Founded | 1946 | 
| Dissolved | 1985 | 
| Location | Manchester, New Hampshire | 
Koehler & Isaak was an architectural firm active in Manchester, New Hampshire, from 1946 to 1970 and under other names until 1985. The firm had the largest architectural practice in New Hampshire at its height during the 1960s. The named partners were Richard Koehler AIA (1912–1974) and Nicholas Isaak AIA (1913–1975).