- Hackbridge - 1 company
- Hackettstown - 1 company
- Haddington - 8 companies
- Hadfield - 1 company
- Hadleigh - 4 companies
- Hadlow - 2 companies
- Hadlow Down - 1 company
- Hailsham - 57 companies
- Hainault - 3 companies
- Halbeath - 1 company
- Hale - 1 company
- Halesfield 9 - 1 company
- Halesowen - 114 companies
- Halesworth - 15 companies
- Halifax - 139 companies
- Halkirk - 1 company
- Hallgreen - 1 company
- Halsall - 1 company
- Halstead - 37 companies
- Haltwhistle - 6 companies
- Hamberg - 1 company
- Hamilton - 31 companies
- Hamilton Technology Park - 1 company
- Hamilton Way - 1 company
- Hammersmith - 3 companies
- Hampshie - 1 company
- Hampshire - 188 companies
- Hampstead - 1 company
- Hampton - 22 companies
- Hampton Court - 1 company
- Handcross - 1 company
- Handsworth - 1 company
- Hanham - 2 companies
- Hanley Stoke on Trent - 1 company
- Hanley Swan - 1 company
- Hants - 29 companies
- Hanwell - 2 companies
- Hanworth - 4 companies
- Harbury - 1 company
- Hard Ings Road - 1 company
- Harefield - 3 companies
- Harleston - 11 companies
- Harlow - 139 companies
- Harlow Essex - 1 company
- Harpenden - 24 companies
Towns 1 to 45 | Page 1 of 6
