- a360 Media LLC
- Absolute Multimedia, Inc.
- Active Interest Media
- Adweek, LLC
- Afar Media
- AirAge Publishing
- Alpha Media Publishing, Inc.
- Alternative Press Magazine, Inc.
- Amer Alternative Foundation
- America’s test kitchen
- American Astronomical Society
- American City Business Journals, Inc.
- American Craft Council
- American Diabetes Association
- American Express Publishing Corp.
- American Girl Publishing, Inc.
- American Sports Media
- Amos Press Inc.
- Annie's
- Aperture Foundation
- Archaeological Institute of America
- Arizona Foothills Magazine
- Arizona Highways
- Army Times Publishing Co
- Art & Antiques Worldwide Media
- Art Media Holdings
- Ashdown Inc
- At Home in Arkansas
- Athlon Media
- Autumn Publishing Enterprises, Inc.
- AV Tech Media Solutions