Perhaps you are interested in the following logos.

AFSCME AFSCME vector
Dell Dell  vector
demeter demeter vector
FACTOR ROJo3 FACTOR ROJo3 vector
4C FOODS 4C FOODS vector
4 screen 4 screen vector
ASCE ASCE vector
Aanderaa Aanderaa vector
Abekas 6000 Abekas 6000 vector
Acadon Software Acadon Software vector
Advance(1155) Advance(1155) vector
Andor Technology Andor Technology vector
Apriori 300 Apriori 300 vector
Arch Wireless Arch Wireless vector
Azra Azra vector