Metta Foundation http://www.metta.org
Offers non-sectarian teachings and develops service programs, and conducts research that enhances clarity, loving presence and mutuality between people. Offers retreats in the US.
ShinnyoEn Foundation http://www.sef.org/
Established by a lay Buddhist order, Shinnyo-en, which translated means "Borderless Garden of Truth." The order promotes the tenets of compassion, harmony, and altruism, those universal ethical values.
World Fellowship of Buddhists http://www.wfb-hq.org/
Aims to secure unity, solidarity, and brotherhood amongst Buddhist; ,propagate the doctrine of the Buddha; and organize social, educational, and cultural activities.