1.

American Antiquarian Society

2.

American Association of Bioanalysts 1956-01-01 00:00:00

3.

American Association of Suicidology

4.

American Board of Periodontology

5.

American Cinematheque

6.

American Composers Forum

7.

American Concord Society

8.

American Digital Network 1979-01-01

9.

American Drug-Free Powerlifting Federation

10.

American Guernsey Association

11.

American Harp Society

12.

American Leprosy Missions

13.

American Physical Therapy Association

14.

American Printing House for the Blind

15.

American Psychiatric Nurses Association

16.

American Sheep Industry Association

17.

American Society of Golf Course Architects

18.

Amherst Media

19.

AMHS-KFLA

20.

Amikas

21.

AMIkids

22.

AMP Singapore

23.

Ampans

24.

Ampleforth Abbey

25.

Amputee Coalition