| 1 | | Mason | N/A |  NG | N/A | N/A | N/A | Btl Engineering Services, Inc. | N/A | Tampa, Florida, United States | N/A | Tampa, Florida, United States | N/A |
| 2 | | Master Mason | N/A | NG | N/A | N/A | N/A | Azadea Group | N/A | Beirut, Beyrouth, Lebanon | N/A | Beirut, Beyrouth, Lebanon | +20 222679887 |
| 3 | | Mason | N/A | NG | N/A | N/A | N/A | Julius Berger Nigeria Plc | N/A | Abuja, Fct, Nigeria | N/A | Abuja, Fct, Nigeria | +234 8033870761 |
| 4 | | Mason | lagos | NG | N/A | N/A | N/A | Harvard Business Review | N/A | United States | N/A | N/A | +1 6174951000 |
| 5 | | Mason | N/A | NG | N/A | N/A | N/A | First World Communities Ltd | N/A | Lekki, Lagos, Nigeria | N/A | Lekki, Lagos, Nigeria | N/A |
| 6 | | Mason | N/A | NG | N/A | N/A | N/A | Gotech Oil Serv. Ltd | N/A | Lagos, Lagos, Nigeria | Oil & Energy | N/A | N/A |
| 7 | | Mason | N/A | NG | N/A | N/A | N/A | Self-Company | N/A | N/A | N/A | N/A | N/A |
| 8 | | Mason | N/A | NG | N/A | N/A | N/A | Building | N/A | Turkey | Construction | N/A | N/A |
| 9 | | Mason | N/A | NG | N/A | N/A | N/A | Formwork Construction Limited | N/A | Hayes, Hillingdon, United Kingdom | Construction | Hayes, Hillingdon, United Kingdom | N/A |
| 10 | | Mason | lagos | NG | N/A | N/A | N/A | Trojan Estates Group | N/A | Nigeria | N/A | N/A | N/A |
| 11 | | Mason | N/A | NG | N/A | N/A | N/A | Trevi Foundations Nigeria Limited | N/A | Gbagada, Lagos, Nigeria | Construction | N/A | N/A |
| 12 | | Mason and Jack Hammer Operator | N/A | NG | N/A | N/A | N/A | Saipem | N/A | San Donato Milanese, Milan, Italy | N/A | N/A | +40 390244234088 |
| 13 | | Mason | N/A | NG | N/A | N/A | N/A | Julius Berger Gmbh & Co. Kg | N/A | Abuja, Fct, Nigeria | Construction | N/A | N/A |
| 14 | | Mason | N/A | NG | N/A | N/A | N/A | Julius Berger Nigeria Plc | N/A | Abuja, Fct, Nigeria | N/A | Abuja, Fct, Nigeria | +234 8033870761 |
| 15 | | Mason | N/A | NG | N/A | N/A | N/A | Sogea-Satom | N/A | N/A | N/A | N/A | +33 147164000 |
| 16 | | Mason | N/A | NG | N/A | N/A | N/A | Wood`N`Steel | N/A | Novi Sad, Vojvodina, Serbia | N/A | Novi Sad, Vojvodina, Serbia | N/A |
| 17 | | Mason | N/A | NG | N/A | N/A | N/A | Shennan Circuits Co.,Ltd | N/A | Shenzhen, Guangdong, China | Electrical/Electronic Manufacturing | N/A | N/A |
| 18 | | Mason | N/A | NG | N/A | N/A | N/A | Bcl Limited | N/A | Botswana | Construction | N/A | N/A |
| 19 | | Mason and Subcontractor and Supervisor | N/A | NG | N/A | N/A | N/A | House For Africa Nigeria | N/A | N/A | Construction | N/A | N/A |
| 20 | | Mason and Tiler | N/A | NG | N/A | N/A | N/A | Oluwaloni Tiles & Construction Company | N/A | N/A | Construction | N/A | N/A |