Partnership Results
| Name | Designation | Formed | Dissolved | Location |
|---|---|---|---|---|
| Irwin and Chester | Architectural practice | 1840 | 1852 | Manchester |
| Isitt and Verity | Archtectural practice | 1884 | 1890 | Bradford and Wigan |
| Isaac Massey and Sons | Builders and contractors | 1850 | 1980 | Alderley Edge |