| gdi engineering design houston | 1.56 | 0.8 | 8754 | 30 | 14 |
| gdi enterprises houston texas | 0.85 | 0.3 | 7446 | 29 | 75 |
| gd&t in design engineering | 1.46 | 0.5 | 5246 | 26 | 81 |
| ghd engineering houston texas | 1.73 | 0.5 | 7764 | 29 | 99 |
| cdi engineering houston tx | 1.82 | 0.1 | 9475 | 26 | 19 |
| gdi services inc us | 1.49 | 1 | 1791 | 19 | 20 |
| gdi.com | 0.62 | 0.2 | 187 | 7 | 15 |
| ggd consulting engineers inc | 0.94 | 0.5 | 7162 | 28 | 61 |
| gd energy products houston tx | 1.57 | 0.4 | 9104 | 29 | 28 |
| gdg enterprises worldwide llc | 0.43 | 0.9 | 6403 | 29 | 37 |
| gdi integrated facility services inc | 0.8 | 0.1 | 8443 | 36 | 84 |
| gdi services detroit mi | 0.02 | 1 | 5319 | 23 | 38 |
| www.gdi.com | 0.85 | 0.9 | 8314 | 11 | 23 |
| gdh enterprises las vegas | 0.23 | 0.8 | 4673 | 25 | 89 |
| gdi services jackson tn | 0.63 | 0.4 | 2272 | 23 | 25 |
| g & d industries inc | 1.54 | 0.8 | 2014 | 20 | 12 |
