- Mc Squared System Design Group, Inc.
 - Providing sound system, audio/video presentation system, and acoustical design services. - Soft dB
- Provides consulting and software development solutions in the field of acoustics and vibration.
- Noise Control
- ATCO Noise Management
- Full service acoustical engineering and contracting company, providing guaranteed noise control for industry.
- CABairTEK Industrial Acoustic & Air Treatment
- Specialises in the design, engineering, and manufacturing of in plant modular buildings for noise reduction and air quality. Includes cleanrooms, control rooms, and in plant offices.
- Stoddard Silencers Canada Inc.
- Serves industrial needs for intake and/or discharge silencers on blowers, compressors, engines, vacuum pumps and gas vents.
- Wilrep Ltd.
- Offers machinery installation, vibration isolation, and noise control systems.
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