| Decision1 | |
| Decisive Flow | Wellington |
| Deepsouth Technology Ltd | Otago |
| Definitive Media | Wellington |
| Deliver Possible Ltd | |
| Dencom New Zealand Ltd | Auckland |
| Design 2Cam Ltd | Auckland |
| Design Arts | Gisborne |
| Design Lounge Ltd | Wellington |
| Design Shore | |
| Design Website | Waikato |
| Designer Digital | Auckland |
| Designer Websites | Auckland |
| Designhand Ltd | Auckland |
| Device Fixx | |
| Deviceware Ltd | Canterbury |
| Devine Computing Ltd | Hawke's Bay |
| DevingCode | |
| DGTL Technologies Ltd | Auckland |
| Dial a Tech | |
| Dick Smith | Auckland |
| Digit Consulting Ltd | Auckland |
| Digital Arena | Auckland |
| Digital Diligence Ltd | |
| Digital Fusion Ltd | Canterbury |
| Digital Health Association New Zealand | |
| Digital Hothouse | Auckland |
| Digital Identity NZ | |
| Digital Island | Auckland |
| Digital Nomad NZ | Wellington |
| Digital Optics Ltd | Auckland |
| Digital Pie | Bay of Plenty |
| Digital Presence | |
| Digital Promotions | Nelson |
| Digital Recovery Ltd | Waikato |
| Digital Stock | |
| Digital Stream | Auckland |
| DigiWise | |
| Direct Capital | Auckland |
| Discount Domains | Auckland |
| Dispersed Data Network Consultants Ltd | Wellington |
| Division 27 Ltd | Auckland |
| DK Hi-Tech | |
| DNAiTECH | |
| DNC NZ Ltd | Auckland |
| Do Good Things | Auckland |
| Dodd-Walls Centre | Otago |
| Domain Agent | Auckland |
| Domain Name Commission NZ | Wellington |
| Done by Friday | Auckland |