- Austereo Group Ltd
 - Australian radio broadcaster.  Chorus Production
- Produces promos, idents, and sound imaging for all kinds of radio.- Finger Lakes Productions International
- Grace Broadcast Sales
- Produces short syndicated radio features for holidays and special events throughout the year.
- Guerrilla Creative
- Radio production and copywriting studios.
- Independent Broadcasting Associates
- Producers of Apna Street, The World of Islam, Passages to India and other award-winning radio programmes.
- Independent Radio Drama Productions (IRDP)
- Nonprofit Britsh independent producer of radio drama.
- Jay Allison Productions
- Radio and televison recording studio offering production, mix engineering, consulting, and teaching.
- Murray-Walsh Radio Programming, Inc.
- Producer of syndicated radio programming.
- New Dimensions
- Independent, listener-supported producer and distributor of public radio, shortwave, and Internet programmes, with a focus on healthy living. Sells archived audio programmes.
- Omega Productions
- Radio production services.
- Ontrack Communications Inc.
- Production house for radio commercials including voiceover casting.
- Talk Radio News Service
- Provide local talk radio stations, hosts and their listeners with up-to-date information and behind the scenes scoops from the nation's capital.
- Telling Creations
- Offer audio services to the radio industry, including copywriting, commercial and promo production, imaging, sweepers, and programming.
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