| Mahachulalongkornrajavidyalaya University | |
| Mahamakut Buddhist University | |
| Mahanakorn University of Technology | |
| Mahasarakham College of Agriculture and Technology | |
| Mahasarakham University Thailand | |
| Mahidol University | |
| Mahidol University - Department of Mathematics | Bangkok |
| Man-In Automation Co., Ltd | Bangkok |
| Manao Software Co., Ltd | Chiang Mai |
| Manatal | Bangkok |
| Mango ERP | Bangkok |
| ManyDomain.com | Bangkok |
| Marketing Bangkok | |
| Marketing Ignite Co., Ltd | Bangkok |
| Marubeni Software & Technology | Bangkok |
| Material Automation (Thailand) Co., Ltd | Bangkok |
| Maximumdev | Bangkok |
| Maya Wizard Co., Ltd | |
| MB Software Co., Ltd | Bangkok |
| MeCode Co., Ltd | |
| Mediacake Co., Ltd | Bangkok |
| Metamedia Technology Co., Ltd | Bangkok |
| Metro Systems Corporation Public Co., Ltd | Bangkok |
| Metropolitan Electricity Authority | Bangkok |
| MFEC Public Co., Ltd | Bangkok |
| Microsoft Thailand | Bangkok |
| Microthai | Bangkok |
| Mindzone Co., Ltd | |
| Miniagency Co., Ltd | Bangkok |
| Ministry of Digital Economy and Society | Bangkok |
| ModestMitkus | Bangkok |
| Modoeye | Bangkok |
| MoneyTable Public Co., Ltd | Bangkok |
| MONIX Co., Ltd | Bangkok |
| Monster Connect Co., Ltd | Bangkok |
| Moonshot Venture Capital Co., Ltd | Bangkok |
| Morphosis Apps Co., Ltd | Bangkok |
| MOST 2414 | |
| Mountain (Thailand) Co., Ltd | |
| Move Ahead Media | Bangkok |
| mu Space Corporation | Bangkok |
| Muban Chombueng Rajabhat University | |
| Multiverse Expert | Nonthaburi |
| Muramoto Electron (Thailand) Public Co., Ltd | Bangkok |
| Muvon Ltd | Phuket |
| Muze Innovation | |
| MVM Infotech Co., Ltd | Bangkok |
| MyCloud Fulfillment | |
| Nakhon Pathom Rajabhat University | |
| Nakhon Phanom University | |