| Boook Kiadó Kft. | Hall G 405G | |
 | BPS Kft. | Hall A 206B | |
| Brabex Kft. | Hall A 309E; A szabad terület PZS5; P szabad (Passzázs) PZS5 | |
| Brabex Kft. | Hall G 205 | |
| BRISCOOL (TR) | Hall D 201E | |
| Budafer Hungary Zrt. | Hall A 107A | |
| Budapesti Építész Kamara | Hall A 210B | |
| Budapesti Kereskedelmi és Iparkamara | Hall A 306D | |
| Budaroof | Hall A 107A | |
 | BUILDING PRODUCTS KFT. | Hall A 307E | |
 | BV Konyhák Kft. | Hall G 203H | |
 | BWT Hungária Kft. | Hall A 202A | |
 | C&D clean energy Co., Ltd (CN) | Hall D 304B | |
| Campeador Srl. (RO) | Hall A 106E | |
 | Cando Solar - Cannnovation Photoelectric Technology Co., Ltd. (CN) | Hall D 102C | |
| Carel industries spa (IT) | Hall A 105M | |
 | Carus srl (IT) | Hall A 204E | |
| Casada Hungary Kft. | Hall G 501 | |
| Casati Color Kft. | Hall G 402C | |
 | CBC Építő Hungária Kft. | Hall A 307A | |
 | CED Közép-európai Gazdaságfejlesztési Hálozat Nonprofit Kft. | Hall A 110C | |
 | CHS Energetika | Hall D 102F | |
 | CIDEMAT Hranice s.r.o. (CZ) | Hall A 302D | |
 | CLT Innowood Hungary Kft. | Hall A 207E | |
| Co&Co Designcommunication | Hall G 504A | |
| Color Naturalis Bútorok | Hall G 202I | |
 | COLORIFICIO VALDECIA S.R.L. (IT) | Hall A 204E | |
| COMFORTEX TEHNO SYSTEMS SRL (RO) | Hall D 102A | |
| Condair Kft. | Hall A 201F | |
| Conveyor and Solar Systems Kft. | Hall A 306I | |
| Corab S.A (PL) | Hall A 301F | |
| CVC Sach Hungary Kft. | Hall D 302F | |
| DAEJIN CO., LTD. (KR) | Hall G 404B | |
| DANIELLA Kereskedelmi Kft. | Hall A 205A | |
 | Dataconstructiilemn Srl. (RO) | Hall G 205B | |
| Davinder Technical Services (AE) | Hall A 308J | |
| Deltako S.r.o. (SK) | Hall G 204B | |
| Delton-Pipe Kft. | Hall A 301A | |
 | Deluzzo kft. | Hall G 202A | |
| Dévai-Project Kft. | A szabad terület PZS6 | |
| DIEGO Kereskedelmi és Szolgáltató Kft. | Hall G 405E | |
 | DIGITOP Informatika Kft. | Hall A 313N | |
| DINA-TEKS. LLC (UA) | Hall G 204F | |
| Dinnyés CSaba EV. | Hall G 401C | |
| DINOCOOP Kft. | Hall A 207C | |
| DKP Market Kft. | Hall A 104H | |
| DNM MKT Kft. | Hall G 301G | |
| DODO Home Kft. | Hall G 304C | |
| DOGU IKLIMLENDIRME SAN. VE TIC. A.S. (TR) | Hall D 101A | |
 | Dongguan Rongke New Energy Technology Co., Ltd. (CN) | Hall D 204R | |