The Thornburg Center is an international organization with offices in North and South America. The Center is led by Dr. David Thornburg, Director of Global Operations. He can be reached through either office. Bookings should be scheduled through the office closest to the country in which the work will be done.

North American operations:

Thornburg Center
711 Beacon Dr.,
Lake Barrington, IL 60010
USA
voice: (847) 277-7691
fax: (847) 277-7697
email: TCPD2020@aol.com

South American operations:

ARS Consult
Rua Ribeiro de Brito, 928
Boa Viagem, Recife / PE 51021-310
Brazil
Phone/Fax: (81) 3301-5711
email: sefer@ars.com.br