- Apple iPhone
- Apple iPod
- Apple Mac
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- Apple MacBook Air
- Apple Mighty Mouse
- Apple Think Different
- Apple video iPod
- Appy Fizz
- Aptivus
- Apumanque Bikes
- Aqua Glide
- Aquafresh
- Aquafresh Flexigel
- AquaMagazine
- Aquaphor Healing Ointment
- Aquarius
- Aquatech
- Aquatech International Corporation
- ArabAd Peace Poster Design Contest
- Arag
- Aral Superwash
- Arano
- Ararat Photo Contest
- Arby's
- Arcor
- ARD and ZDF
- Area25
- Arena
- Arena swimwear
- Argos
- Ariel
- Arihant Superstructures
- Arkaden
- Arlistan Coffee
- Armadillo Scooterwear
- Arnet
- Arno
- Arno Centrifuges
- Arose 2007
- Around the World in 80 Days
- Arraze Rodenticide
- Arrels Fundacio
- Arrels Fundation
- Arrive Alive
- ART & COPY
- Artisan
- Artline Pens
- Arts & Earth festival
- AS sport newspaper
- Asa Wright Nature Center
- Asana
- Asel art supply
- ASH
- Ashhole
- Ashley Madison Agency
- ASICS
- Ask.com
- Asko Washing Machines
- Asociacion Salvadorena de Agencias de Publicidad
- Asonor
- Aspirin
- Aspirin Plus C
- Aspirine
- Assassin's Creed 2
- Associated Ready Mixed Concrete
- Association for Responsible Alcohol Use
- Asthma Foundation
- AT&T
- AT&T
- Atari
- Atelier Straumann Retouching Studio
- ATG
- Atlantic School of Circus Arts
- Atlantis Travel Agency
- Atol
- ATP
- Atria Fresh
- Atripla billboard
- Au Revoir Charlie (Sound production)
- Aubade
- Auckland Architecture Association
- Auckland City Council
- Auckland City Council Pedestrian Safety
- Auckland Zoo
- Audey 2
- Audi
- Audi A4
- Audi Q5
- Audi Quattro
- Audi R8 V10
- Audi RS4
- Audi S4 Quattro
- Audi S5
- Audi side assist
- Audi TDI (Q7)
- Audi TT TDI
- Audible.com
- Augmented Reality
- Australian Childhood Foundation
- Australian Financial Review
- Australian Football League
- Australian Mitochondrial Disease Foundation / Stay in Bed Day
- Australian Olympic song parody
- Australian Post
