Security Researchers Acknowledgment

Facebook - White Hats
https://www.facebook.com/whitehat/

Twitter - Twitter Whitehats 2012 & 2013
https://twitter.com/about/security

Google - Security Hall of Fame - Honorable Mention - "April - June 2011"
http://www.google.com/about/appsecurity/hall-of-fame/distinction/

Tuenti - Security Hall of Fame
http://corporate.tuenti.com/en/dev/hall-of-fame

Nokia Siemens Networks - Security Hall of Fame - "November 2012"
http://www.nokiasiemensnetworks.com/about-us/responsible-disclosure

Constant Contact - Security Acknowledgement
http://www.constantcontact.com/about-constant-contact/security/report-vulnerability.jsp

OwnCloud - Security Hall of Fame 2012 & 2013
http://owncloud.org/security/hall-of-fame/

iFixit - Security Acknowledgement 2012 & 2013
http://www.ifixit.com/Info/responsible_disclosure

Zynga - Whitehats 2012 & 2013
http://company.zynga.com/security/whitehats

Redhat - Vulnerability Acknowledgements for Redhat online services -"2012 Acknowledgements"
https://access.redhat.com/knowledge/articles/66234

Adobe - Security Acknowledgments
http://www.adobe.com/support/security/bulletins/securityacknowledgments.html

SoundCloud - Whitehat Thanks List
http://help.soundcloud.com/customer/portal/articles/439715-responsible-disclosure

GitLab - Vulnerability Acknowledgements
http://blog.gitlab.com/vulnerability-acknowledgements/

Collective Idea - HarmonyApp Security Thank-you List
http://get.harmonyapp.com/security/