| Autview | Belgrade |
| Autview d.o.o. | South Bačka |
| AVI Solutions | |
| Avokado d.o.o. | |
| AVR Solar | |
| AVS Electronic | Braničevo |
| AVS Solutions | Belgrade |
| AxiomQ | South Bačka |
| Bakson Ltd | |
| Balkan Fund | |
| BB Soft Inženjering | Belgrade |
| BC Group | Belgrade |
| BCS Profesional d.o.o. | Belgrade |
| BDC Export-Import Copier System | Belgrade |
| BDIT Engineering | |
| Bee IT | South Bačka |
| Bee IT | |
| Bel Computers | Belgrade |
| Belgrade Venture Forum | Belgrade |
| Belit d.o.o. | Belgrade |
| Benchmark | Belgrade |
| Beophone d.o.o. | Belgrade |
| BeotelNet | Belgrade |
| Bit Impeks d.o.o. | Belgrade |
| Biznis Inovacioni Centar | Šumadija |
| Biznisoft | Belgrade |
| Blinking | Belgrade |
| Blockbyte | |
| Blockchain Reactor | |
| Bloxico | |
| BlueGrid.io | |
| Boopro Technology d.o.o. | |
| Boostowski | Belgrade |
| Bounty Hunter Agency | |
| BRAINEERING IT Solutions | Belgrade |
| Brainstorm Solutions | |
| Brandbusters | |
| Breza Software Engineering | Belgrade |
| Brisbane Digital d.o.o. | South Bačka |
| Broworks | |
| BS Tech | |
| BTR Co. d.o.o. | Belgrade |
| Buildcon | Belgrade |
| Builtt | |
| Burina.NET | Belgrade |
| Bushido XYZ d.o.o. | |
| Centar za upravljanje projektima | Belgrade |
| CET Computer Equipment & Trade | Belgrade |
| CHIP d.o.o. | Belgrade |
| City Expert Global d.o.o. | Belgrade |