| Stonehurst Construction Ltd | 020 7930 0361 | | 21 Villiers Street, London, WC2N 6ND |  Map & Directions |
| Hutchings & Keasley Builders Ltd | 020 7836 9431 | | 10 New Row, London, WC2N 4LH | | Map & Directions |
| Sykes & Son Ltd | 020 7353 9651 | | 23 Devereux Court, London, WC2R 3JY | | Map & Directions |
| Alternative Water Co | 020 7606 0101 | | 1 Northumberland Avenue, London, WC2N 5BW | | Map & Directions |
| Timco Builders | 020 7833 1567 | | 11b Warner Street, London, EC1R 5HA | | Map & Directions |
| Ice Air Con | 020 7422 0012 | | 13 Devonshire Square, London, EC2M 4TH | | Map & Directions |
| Two Up Two Down Construction | 0870 444 6800 | | 5 - 7 St. Agnes Well, London, EC1Y 1BE | | Map & Directions |
| Flack & Kurtz Ltd | 020 7314 4444 | | Buchanan House, 24-30 Holborn, London, EC1N 2HS | | Map & Directions |
| Avonhall Building Ltd | 020 7689 5571 | | 389a City Road, London, EC1V 1NA | | Map & Directions |
| Mlm Building Control | 020 7613 7500 | | 5-25 Scrutton Street, London, EC2A 4HJ | | Map & Directions |
| Herald Build Ltd | 020 7833 3003 | | Flat 21 Moorgreen House, Wynyatt Street, London, EC1V 7JA | | Map & Directions |
| Becst Practice Ltd | 020 7251 5001 | | 77 Bastwick Street, London, EC1V 3TT | | Map & Directions |
| U B S Building Services | 020 7833 4411 | | 18 Vine Hill, London, EC1R 5DZ | | Map & Directions |
| Fulcrum Consulting | 020 7520 1300 | | 62-68 Rosebery Avenue, London, EC1R 4RR | | Map & Directions |
| Perry Bros | 020 7855 4000 | | Telephone House, 69-77 Paul Street, London, EC2A 4NQ | | Map & Directions |
| T & R Bros | 020 7713 7740 | | 40 Bowling Green Lane, London, EC1R 0NE | | Map & Directions |
| Jerram Falkus Construction Ltd | 020 7729 2424 | | 14 Anning Street, London, EC2A 3LQ | | Map & Directions |
| Inspace Complete | 020 7634 9600 | | 32 Farringdon Street, London, EC4A 4HJ | | Map & Directions |
| Spencer Mayes | 020 7566 0911 | | N Charterhouse Buildings, London, EC1M 7AN | | Map & Directions |
| Brytech Construction Ltd | 020 7837 1112 | | 49 Rawstorne Street, London, EC1V 7NQ | | Map & Directions |
| B L Universal Ltd | 020 7626 4646 | | 133 Houndsditch, London, EC3A 7DX | | Map & Directions |
| Willowside Services | 020 7253 4481 | | 9-10 Charterhouse Bldgs, London, EC1M 7AN | | Map & Directions |
| Long & Partners | 020 7456 0920 | | Devonshire House, 146 Bishopsgate, London, EC2M 4JX | | Map & Directions |
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