The logo you're referring to is likely the logo of the social media platform, LinkedIn. It features a blue box with a white "in" inside it. If you meant a different logo, please provide more context.
The company Garmin has a blue triangle in its logo, with the triangle over the 'N' in the 'IN' of the Garmin name.
Blue square
shnarf
dropbox
Blue Square North
Pandora has a white box and blue P.
Garmin
MySpaceMySpace
va
Pandora