You also have to dig pretty deep on Pigeon Transit's web site (https://pigeontransit.com) to see that it's really part of Google.
From the FAQ:
> Who created Pigeon?
> Pigeon is lovingly designed and built by a small team based in New York as a part of Area 120 - a workshop for experimental products.
You then have to follow another link to "Area 120", which takes you to area120.google.com and finally tells you:
> Area 120 is a workshop for Google's experimental products.
It's interesting that Google launched their app on iOS before Android. Also from the FAQ:
> We’re currently focused on learning and testing with iOS users in NYC, but we hope to bring Pigeon to Android soon.