There are 3 organisations which represent the NSA Hombu in the West. One run by Hanshi Creedy (NSA), one by Hanshi Barrera (International Committee for the Protection of Nippon Seibukan), and one by Hanshi Hobbs (Nippon Seibukan Academy International).
The Nippon Seibukan Academy International (NSAI) distinguishes itself in the following way :
"The NSAI is an organisation under the NSA Hombu which by design enables serious martial artists to become members of the NSA, but which has purposefully been constructed to limit bureaucracy and interference in the day to day practice of the individuals own martial style and organisational needs."
The Nippon Seibukan Academy UK belongs to the NSAI
The current Uk Shidoin is Hanshi Chris Spencer-Hicks