1) In manufacturing - To help make stuff, faster and with more more quality control.
2) In processing operations - fitted with cameras to sort foods quality.
3) In inaccessible areas - very small robots accessing places we can't go, or space exploration missions.
4) In dangerous areas - inside nuclear reactors to check them out.
5) In the military - to keep humans out of harms way.
6) In medical environments - helping surgeons perform operations.
7) To assist disabled people - with the use and control artificial limbs.
8) To help market their products - the Honda Robot, Vacuum Robot.
9) To find out what they are capable of doing - in universities and research organizations.
10) In toys - Very simple robotic techniques are used in toys for children.