- Francis Manzella Design, Ltd.
 - Provides acoustic consulting and studio design for critical listening environments including recording, broadcast, post-production, and performance venues. - XL Acoustics
- Offers design and build services for recording studios.
- Comprehensive Technical Group, Inc. (CTG)
- Supplier of technical support, sales, design and installation to recording and production studios.
- Pilchner Schoustal
- Specialising in the design and construction of recording studios, broadcast facilities, theatres, and critical listening environments. Also offers acoustic consulting.
- Extreme Soundproofing
- Offers noise control ideas and products including acoustic foam, noise barriers, flooring, ceiling tiles, and more.
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