- Zwayo "On-Demand Valet Parking"
- ZWC Ventures
- zwear
- Zweave, Inc
- Zweedeo
- Zweemie
- Zweetprobleempjes
- Zweezle
- zweitgeist
- Zwiffer
- Zwift
- ZwiftPay
- Zwikk
- zwilio
- Zwingit
- Zwinky
- Zwipe
- ZWOOKY
- zwoor
- ZWSOFT
- ZX Spectrum 128
- ZX900
- ZXY Sport Tracking
- ZY
- ZY Therapeutics
- Zyanik
- ZYB
- Zyber Secure Mobile Solutions
- Zybo Tracking Solutions
- zyBooks
- Zyboorg Tech
- Zybra Group
- Zycad
- Zycada Networks
- Zycamore
- ZYCI CNC Machining
- Zycko
- Zycron
- Zycus
- ZyDAS Technology
- Zydii
- ZYE Technologies
- ZyEdge LLC.
- Zyfer Digital Labs
- Zyfin
- zygella
- Zygo
- Zygo Communications
- Zygos
- Zygote Ventures
- Zyked
- Zyken - NightCove
- Zykis
- Zyl
- ZyLAB
- Zylia
- Zylie the Bear
- Zylinc
- zylknet
- Zylo
- Zylog Systems
- Zylog Systems (Canada) Ltd
- Zylom
- Zylone IT Pte
- Zylone IT Pty Ltd
- ZyloTech formerly DataXylo
- ZylTec, Inc.
- Zylun Staffing
- Zyme Solutions
- Zymed
- Zymenex
- ZymeQuest
- Zymergen
- Zymetis
- ZymeTx
- Zymeworks
- ZymiausiFotografaiLt
- Zymlogic
- Zymmetrical
- Zymo Entertainment + Development
- Zymochem
- Zymphonies Technologies
- Zymphony Technology Solutions
- Zympi
- Zymr
- zynamics
- Zynapp
- ZynBit
- Zync
- Zync Music
- Zync Render
- Zynchros
- Zyncro
- Zynerba Pharmaceuticals
- ZyNet Ltd
- Zynetix
- Zynga
- Zyngenia
- zyngocouk