Nominatim was written by:

  Brian Quinion
  Sarah Hoffmann
  Frederik Ramm
  Michael Spreng
  Daniele Forsi
  mfn
  Grant Slater
  Andree Klattenhoff
  IrlJidel
  appelflap
  b3nn0
  Spin0us
  Kurt Roeckx
  Rodolphe Quiédeville
  Marc Tobias Metten

Reverse geocoding using Tiger data sponsored by
  Linux training company, Guru Labs (https://www.gurulabs.com)