Larp Lab is a new Seattle (US) based non-profit. A representative of the group had this to say about it:
I just needed to share this good news: After a year and a half of research, meetings, and filling out paperwork a group of us from Seattle have successfully launched our LARP based nonprofit: LARP Lab. Our website is also live at larplab.com if you want to check us out.
Check them out at their website:
http://larplab.com/