| Name | Company | Active Certifications |
| Alpharetta Dalilis |  |
MEF-CECP |
| Neil Danilowicz | |
MEF-SDCP |
| Rommel Danzalan |  |
MEF-SNCP |
| Ma. Mikaela M. Daquioag | |
MEF-SDCP |
| Dhananjay Dass |  |
MEF-SDCP |
| Trent Davis |  |
MEF-CECP |
| Brian Davis |  |
MEF-CECP |
| Mario De Castro | |
MEF-CECP, MEF-SNCP  |
| Gerrel Ann S. De Lara | |
MEF-CECP |
| Jerico D. De Leon | |
MEF-CECP |
| Benson Paolo De Leon | |
MEF-SNCP |
| Ryan De Quiroz | |
MEF-SNCP |
| Mc Edrienne Delos Reyes | |
MEF-SNCP |
| Paman Dhillon |  |
MEF-SDCP |
| John Dillard | |
MEF-CECP |
| Lujun Ding | --- | MEF-SDCP |
| Eric Dinwoodie |  |
MEF-CECP |
| Selena Dixon | |
MEF-CECP |
| James Dobbs | |
MEF-CECP |
| Anatolie Dobos | EXA Infrastructure | MEF-CECP |
| Sarah Douglas | |
MEF-SDCP |
| Erik Dube |  |
MEF-SDCP |
| Simon Duckworth | |
MEF-CECP |
| Ken Duncan |  |
MEF-CECP |