[rlv-dan]

I remember hearing that the band "A" took their name so that they would be put first the record shops.

[markovs_gun]

Amazon and Apple both picked their names to show up early on in lists, and anyone who remembers the phone book days remembers all sorts of plumbers with names like "AAA plumbing"

[Symbiote]

The British company Acorn Computers picked their name to appear even earlier in the alphabet. Acer of Taiwan beat that, is there any company earlier than Acer?

(Acorn was the original "A" in ARM, the Acorn Risc Machine.)

[NikkiA]

There have been thousands of 'Aardvark Computers' around the world, but afaik they have all been support/service companies rather than manufacturers.