| Name | Company | Active Certifications |
| Matthew Jacoby |  |
MEF-SDCP |
| Bahle Jakalase |  |
MEF-CECP |
| Ho Yeon Jang |  |
MEF-CECP |
| Matthias Janka |  |
MEF-SDCP |
| Eric Jennings |  |
MEF-CECP |
| Bryan Jennings | |
MEF-SDCP |
| Cody Jessnitz | |
MEF-CECP |
| Jason Jimenez | |
MEF-SNCP |
| Robert Johnson | |
MEF-SDCP |
| Kenyatta Johnson | |
MEF-CECP |
| Joe Jonaitis |  |
MEF-CECP |
| Keith Jones | Conterra Networks | MEF-CECP |
| Done Joubert | MTN | MEF-CECP |
| Dale Terence C. Jovellano |  |
MEF-SNCP, MEF-CECP  |