Thornton and Ross Limited 1922
- industry:
- Pharmaceutical manufacturer
- Nationality:
- British
- based:
- Huddersfield, Kirklees, West Yorkshire, England, United Kingdom
1922- founded by Nathan Thornton and Phillip Ross (originally making soft soap and packing household ammonia); 2010 - products include: Covonia, Hedrin, Asilone, Setlers, Transvasin, Mycota and Zoflora