Ask HN: What are some startups you actually use and respect?

I used Survata to validate some hypothesis about a potential startup (I'm based in Uruguay and wanted U.S. data, customer discovery isn't that easy at a distance!).

http://survata.com/

They definitely overdelivered :) I'm a satisfied customer and probably will use them again if I need U.S. data again.

We use Papertrail (http://papertrailapp.com) and it's been invaluable.