Based in the UK and founded in 1998, OPRO is the world's largest supplier of custom mouthguards.
The Rugby Football Union was founded in 1871 as the governing body for the sport of rugby union, and performed as the international governing body prior to the formation of the International Rugby Board in 1886. It has since functioned within England as a society to promote and run the sport, including organising international matches for the England national team, educating and training players and officials and acting as the governing body for England.