also: プロバイダー
Internet service provider; ISP
Refers specifically to a company that provides Internet connectivity. In Japanese, it is almost exclusively used in this sense, unlike the broader English 'provider'.
from English provider
When I switched to a new ISP, the connection speed got faster.
Please check the terms of your ISP contract.
I signed up with a new ISP when I moved.
The fees were high, so I switched to a different ISP.
This ISP's service has fast connection speeds.
commandlet provider; cmdlet provider