diff --git a/list_participants.txt b/list_participants.txt
index 95b1e99..396497d 100644
--- a/list_participants.txt
+++ b/list_participants.txt
@@ -1,17 +1,49 @@
-- Diptarka Hait
-- Katharina Boguslawski
-- Hugh Burton
-- Paola Gori-Giorgi
-- Pina Romaniello
-- Neepa Maitra
-- Claudia Filippi
-- Tim Berkelbach
-- George Booth
-- Eric Neuscamman 
-- Denis Jacquemin 
-- Xavier Blase
-- Julien Toulouse
-- Emmanuel Fromager
-- Peter Gill
-- Giuseppe Barca
-- Tim Gould
+Max 40 talks
+
+US(8)
+1. Diptarka Hait
+2. Francesco Evangelista
+3. Neepa Maitra
+4. Tim Berkelbach
+5. Eric Neuscamman 
+6. Sandeep Sharma
+7. So Hirata
+8. Johnoo Lee
+
+UK(3)
+1. Hugh Burton
+2. George Booth
+3. Alex Thom
+
+EU(6)
+1. Katharina Boguslawski
+2. Paola Gori-Giorgi
+3. Pina Romaniello
+4. Claudia Filippi
+5. Kasha Pernal
+6. Thomas Jagau
+
+Fr(7)
+1. Denis Jacquemin 
+2. Xavier Blase
+3. Julien Toulouse
+4. Emmanuel Fromager
+5. Manu Giner
+6. Morgane Vacher
+7. Lucia Reining
+
+Au(3)
+1. Tim Gould
+2. Peter Gill
+3. Giuseppe Barca
+
+Group members:
+1. Antoine Marie
+2. Yann Damour
+3. Enzo Monino
+4. Fabris Kossoski
+5. Raul Quintero
+6. Michel Caffarel
+7. Anthony Scemama
+8. Abdallah Amar
+