Founder badge is a special badge awarded to Agents that were supporting ingress from early on. This badge doesn’t have tiers like the others but is something that every Agent is displaying proudly on their profiles. The Founder badge was only achievable on December 14th 2013 and only for agents that were Level 5+.

Here is how the Founder badge looks:

founder

And here is the founder badge info screen (no longer 1337):

founder-info