- a360 Media LLC
- Absolute Multimedia, Inc.
- Active Interest Media
- Adweek, LLC
- Afar Media
- AirAge Publishing
- Alpha Media Publishing, Inc.
- Amer Alternative Foundation
- America’s Test Kitchen
- American Astronomical Society
- American City Business Journals, Inc.
- American Craft Council
- American Girl Publishing, Inc.
- American Sports Media
- Amos Press Inc.
- Annie's
- Aperture Foundation
- Aquatic Media Press LLC
- Archaeological Institute of America
- Arizona Foothills Magazine
- Arizona Highways
- Arizona Wildlife Views
- Art & Antiques Worldwide Media
- Ashdown Inc
- Aspire One Communications
- At Home in Arkansas
- At Large
- Athlon Media
- Atlanta Magazine LLC
- AV Tech Media Solutions