Heartkids e.V. was founded in spring 2004 in Freiburg-Breisgau (Germany) by Judith Retz (*1976) as a charitable organisation, and is mostly active in Tiruvannamalai and its surroundings in Tamil Nadu, South India.
heartkids.de

"The Institute of HeartMath is an internationally recognized nonprofit research and education organization dedicated to heart-based living". Science of The Heart is a science of coherence.
heartmath.org