I W Jones Eng'r.
| Industry | Engineering |
|---|---|
| Founded | 1899 |
| Founder | Ira W. Jones |
| Defunct | 1930 |
| Headquarters | , United States |
Areas served | Canada New England Southern United States |
| Products | Hydroelectric plants, water-powered factories |
I W Jones Eng'r was an American engineering firm that operated from offices on Main Street in Milton, New Hampshire, from 1899 to 1930. The firm built water-powered factories and hydroelectric plants. Ira W. Jones was the principal of the firm.