Thanks for those links yknot.
On the final list of participants the Watchtower had several entries: (did I miss any?)
#9 page 44 Adm Centre of JWs - Russia
#87 page 53 European Assn of Jehovah's Christian Wits (Belgium)
#88 page 53 European Assn of Jehovah's Christian Wits (United Kingdom)
#235 page 70 Ofc of General Counsel for JWs (Patterson NY, USA)
#324 page 79 WTBTS - Poland