Who owns Isaac Dewhirst?
Isaac Dewhirst
Made O'Meter is free and ad-free, built to keep ownership like this transparent.
- Ultimate owner
- Dewhirst Group Limited
- Brand origin
- United Kingdom
- About Isaac Dewhirst
- A private British clothing manufacturer and supplier founded in 1880, known for its historic ties to the founding of Marks & Spencer.
Updated: 24 January 2026