TDK Corporation is a global leading electronic components company based in Tokyo, Japan. TDK has been an IAAF's Official Partner since the first edition was held in Helsinki, Finland, in 1983.

TDK's corporate philosophy -"Contribute to culture and industry through creativity"- is in line with the IAAF's objective of contributing to society through expansion and development of the sport of athletics. TDK will continue to cooperate in making the IAAF World Championships a success going forward as sponsor of all the men's number bibs.