- Airlock
- Airlogica
- Airloom
- Airloyal
- Airly
- Airmada
- AirMagnet
- Airman
- Airman - indoor air quality maintenance as a service
- AirMap
- AirMarket
- AirMarkr
- Airmatch
- Airmax Group
- AirMe
- AirMech
- AirMedia
- AIRMESH
- Airmule
- Airnest
- AirNet Communications
- Airnet Group Inc.
- AirNFC
- AirNodes
- AirnStudio
- Airnugget
- AIRNYX
- Airo Wireless
- Airobot
- Airobotics
- AiroCorp
- Airomo
- AirON
- Aironet Wireless Communications, Inc
- Airops Software
- Airosmith Development
- AirPair
- Airpas Aviation
- AirPatrol
- AirPay
- Airpepper
- Airpersons
- Airphrame
- airPHX Environmental
- airpim
- Airpix
- Airplay Music
- AirPlay Network
- AirPlug
- AirPlus
- Airplux Tenologies
- Airport Chatter
- Airport Group International LLC
- Airport Information Systems
- Airport Limo Hamilton
- Airport Limo Taxi
- Airport Limousines Toronto
- Airport Research Center
- Airport Revenue News
- Airport Sherpa
- AirportHotels
- AirportLostandFound
- AirPOS
- Airpost
- Airposted
- Airpowered
- AirPR
- AirPrime
- AirPromVent
- Airpush
- AIRR MEDIA
- airrand
- Airrands
- AirRobot
- AirRover Wi-Fi
- AirRun
- AirSage Inc.
- AirSched Solutions
- AirScoreboard
- Airscort
- Airsee
- Airseed
- AirSense Wireless
- AirSenze
- Airserv
- AirServer
- AirService
- AirSet, Inc.
- Airshares Tm Eu Carbon Allowances
- AirShark
- AirShip Technologies
- Airshop
- AirShoppr
- Airshow
- AirShr
- Airside Mobile
- AirSig
- AIRSIS, Inc.
- Airslide Systems