- A-1 Piano Tuning. This company offers piano tuning services for both grand pianos and upright pianos. They also offer repairs and maintenance services.
- Cadenza Piano Tuning. This company is run by a registered piano technician who has over 30 years of experience in the industry.
- Coda Music. This music store also offers piano tuning services.
- Concert Tuners. This company is run by a team of experienced piano tuners who have worked with some of the world's most famous pianists.
- Harmonic Sounds Piano Tuning. This company is run by a technician who has over 20 years of experience in the industry.
- John Davis Piano Tuning. This technician is a professional piano tuner and has been in business for over 35 years.
- Keyboards Unlimited. This company offers piano tuning, repairs, and other services.
- Piano Experts. This company offers piano tuning, repairs, and other services. They have a team of experienced technicians who are available to help customers.
- Piano Technicians Guild of Ontario (PTGO) This organization is a non-profit educational association for piano technicians in the province of Ontario, Canada. Membership is voluntary, and piano technicians who are members of the PTGO have demonstrated a commitment to excellence and continuing education.
- Pro Tune Piano Services. This company offers piano tuning services for both grand pianos and upright pianos. They also offer repairs and restoration services.
- R.S. Piano Tuning & Repairs. This company offers piano tuning, repairs, and other services. They have a team of experienced technicians who are available to help customers.