- AlertMe
- AlertMedia
- Alertoid
- AlertOps
- Alerts
- AlertSense
- AlertSite
- AlertThingy
- AlertUs
- Alertus Technologies
- AlertWatch
- AlertWoo
- Alerus Financial
- Ales
- Ales By Mail
- AlesiaTec
- Alesis Corp.
- Alessi Games
- Alesta Girisim
- Alesys Srl
- Aleth
- Aletheia
- Alethia BioTherapeutics
- Aleuro
- Aleutia
- Aleva Neurotherapeutics
- Aleveo
- Alex
- alex & henry
- Alex and Ani
- Alex Brown & Sons
- Alex C Professional photography
- Alex Daisy
- Alex Heiphetz Group
- Alex Jeffries Photography Group
- ALEX Solutions
- Alex Technologies
- Alex's Apple Orchard
- alex+von
- Alexa
- Alexa Internet
- Alexa Shop Assist
- ALEXANDALEXA
- Alexander Forbes
- Alexander Francis
- Alexander Gallo Holdings
- Alexander Graham Bell
- Alexander Hutton Venture Partners
- Alexander Interactive (Ai)
- Alexander J Wayne & Associates
- Alexander LAN, Inc
- Alexander Law Firm
- Alexander Open Systems
- Alexander Productions
- Alexander Proudfoot
- Alexander Street Press
- Alexander Technology Group
- Alexandra Mosher Studio Jewellery
- Alexandre de Paris
- Alexandria
- Alexandria Library Management
- Alexandria Real Estate Equities
- Alexatravelmart (ATM)
- Alexbrol
- Alexco Resource
- Alexi
- Alexia Designs
- Alexion Antibody Technologies
- Alexion Pharmaceuticals
- Alexo Therapeutics
- Alexon Group
- Alexsys Corp.
- Alexza Pharmaceuticals
- Aleyant
- Alezi Teodolini
- Alf io
- Alfa
- Alfa Aesar
- ALFA and friends
- Alfa Chemicals
- Alfa Electronics PTE. LTD.
- Alfa Electronics Videotronic
- Alfa Electronics Videotronic II (3388)
- Alfa Electronics Videotronic II (8550C)
- Alfa Infinity
- Alfa InfoTech Solutions
- Alfa Institute Of Mobile Technology
- Alfa Jango
- Alfa Laval
- Alfa Plastics
- Alfa robot
- Alfa Robotics
- Alfa weighing scale
- Alfa-Tech Quality Steel
- Alfabeat
- Alfabet AG
- Alfabetic
- Alfabit
- AlfaCon