| Name | Also Known As | Twitter Handle | Presentations |
|---|---|---|---|
| Cheryl Ainoa | 4 | ||
| Gbenga Ajilore | gbenga_ajilore | 1 | |
| Syrus Akbary | syrusakbary | 1 | |
| Brian Aker | 2 | ||
| Joel Akeret | 1 | ||
| Sajid Akhtar | mail2fashion | 1 | |
| Phil Akilade | 1 | ||
| Tanaka Akira | tanaka_akr | 1 | |
| Fabio Akita | akitaonrails | 1 | |
| Senongo Akpem | senongo | 1 | |
| Hala Al-Adwan | 2 | ||
| Indu Alagarsamy | indu_alagarsamy | 1 | |
| Valentina Alaria | 2 | ||
| Samy Al Bahra | 0xCD03 | 1 | |
| Stéphane Albert | 1 | ||
| Merlyn Albery-Speyer | 0 | ||
| José Thomás Albornoz | 1 | ||
| Greg Albrecht | 1 | ||
| Doug Alcorn | dougalcorn | 2 | |
| Tom Aldcroft | 1 | ||
| Aaron Aldrich | crayzeigh | 4 | |
| Aaron Aldrich | crayzeigh | 1 | |
| Ashok Aletty | 1 | ||
| Sam Alexander | SamAlexand | 1 | |
| Robert Alexander | 1 |