| Castlework Contractors Ltd. - 98 College Street - MK42 8LU |
| Hanson Aggregates - Heath & Reach Quarry - LU7 0AL |
| Hanson Aggregates - Potton Quarry - SG19 2NH |
| Hanson Building Products |
| Hanson Premix - Cople Turn - MK44 3TP |
| Hanson Premix - Cosgrove Way - LU1 1XL |
| Lafarge Aggregates Ltd - Woburn Road - LU7 0UB |
| Lafarge Aggregates Ltd - Wilstead Road - MK42 9YU |
| Lafarge Aggregates Ltd - Bedford Road - MK44 3TP |
| Plasmor Ltd - The Goods Yard - SG18 8AL |
| Stonbury Ltd - 187c High Street - MK43 0JB |
| Tarmac Topmix Ltd - The Old Coal Yard - LU3 1RJ |
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