• Charnwood Minerals Ltd
  Suite 7 Dunston House, Livingstone Road, HESSLE, North Humberside, HU13 0EG
• Holderness Aggregates Ltd
  Mill Hill Quarry, Hull Road, Keyingham, HULL, North Humberside, HU12 9ST
• RMC Aggregates Northern Ltd
  West Quay, Alexandra Dock, HULL, North Humberside, HU9 1TA
• Stema Shipping
  Quay 10, Queen Elizabeth Dock, HULL, North Humberside, HU9 5PB
• Tarmac Quarry Products Ltd
  Tower Street, HULL, North Humberside, HU9 1TU
• Yoragg Ltd
  Ellifoot Lane, Burstwick, HULL, North Humberside, HU12 9EF