• Heart and Circulatory System

• 550.

Heart Rhythm Society, Inc.

Heart Rhythm Society: International leader in science, education and advocacy for heart rhythm disorders Founded on February 25, 1980, the Heart Rhythm Society is the international leader in science, education, and advocacy for cardiac arrhythmia professionals and patients, and the primary information resource on heart rhythm disorders.

• Disaster Preparedness and Relief Service

• 551.

HelpAge USA, Inc.

Advancing the well-being & inclusion of older people in the US & around the world.

Social Movement Technologies Foundation Inc

A non-profit/NGO providing organizing strategy, training and campaign support to build people power and win in the digital age.

Delaware Society for Human Resources Management Inc

Premier professional HR organization in the Delaware region.

• Medical Disciplines

• 554.

California Geriatric Society

Founded in 2001 as the official state chapter of the American Geriatrics Society.

• Community Coalitions

• 555.

Institute of the National Network for Social Work Managers

An International Organization Advancing #SocialWork #Management.

• Personal Social Services

• 556.

Comfort Human Inc

Comfort Human® is a 501(c)3 nonprofit organization that creates initiatives and special projects designed to improve the mental health and social wellness of those living with Alzheimer's and other forms of dementia.

• Developmentally Disabled Services/Centers

• 557.

Alaska Association On Developmental Disabilities

The specific purposes of this organization are to enhance the quality of life of individuals with developmental disabilities and their families by providing leadership and training that promotes and supports the following Service Principles: 1.

• Educational Services and Schools - Other

• 558.

Institute of the National Network For Social Work Managers

An International Organization Advancing #SocialWork #Management.