A "downsizer" is someone who reduces company employee numbers, or removes assets, often in order to comply with corporate budget cuts.
A Downsizer's appearance is almost identical to a Bean Counter. The differences between them are that they are a different Cog branch (one is a Bossbot and the other is a Cashbot) and have different colored hands. A Bean Counter also has a slightly different face close-up.
A Downsizer is the only Cog with three signature attacks.