e3 Gordon Stowe St. Louis opened in 1988 as GNS Audiometrics, Inc. As one of our two founding employees, Dave Stewart started as a Service Manager and eventually took on his current role of Regional Sales Manager in 1996. As one of his first orders of business, he hired current technician Jay Feco to head up the service department.

e3 Gordon Stowe St. Louis

Eventually, our name changed from GNS Audiometrics, Inc. to e3 Gordon Stowe, but our vision and dedication to customer service remained unchanged. We’ve even added NASED-Certified Technician Dave Stewart Jr. (DJ) to increase the output of our service department, and Office Assistant Nicole Bisanz to improve our administrative and customer service processes.

Each member of our St. Louis area team of professionals has extensive backgrounds in the following service areas:

  • Electronics Engineering
  • Telecommunications
  • Field Service
  • Medical Equipment Calibration and Repair
  • Hearing Healthcare Product Service and Repair
  • PC Networking
  • Sound Booth Assembly


We strive to provide our customers with a more service-based and consultative approach.  This means we put emphasis around helping you understand your audiology equipment options so you can make good decisions based on your facility needs and budget. Our NASED-Certified technicians also work with your to ensure your audiological instruments are calibrated and working properly on a daily basis.

In need of a new audiometer, tympanometer, OAE screener, or hearing instrument fitting system? How about repair or calibration services on your current instruments? Get in touch with us today! We'd love to chat with you and guide you through our expansive product catalog to find the perfect device for you!

Your Local Experts

e3 Gordon Stowe St. Louis is a leading distributor of audiology equipment in St. Louis and Southern Illinois. With years of combined experience, our experts provide unmatched consultation, calibration, and repair services. Get in touch with us today to learn more!

  • e3 Expertise

    Dave Stewart

    Regional Sales Manager
    (636) 379-6435
    @dave

  • e3 Gordon Stowe St. Louis jay feco

    Jay Feco

    NASED Certified Technician
    (636) 379-6435
    @jay

  • e3 Expertise

    Dave Stewart Jr.

    NASED Certified Technician
    (636) 379-6435
    @davejr

  • e3 Gordon Stowe St. Louis nicole bisanz

    Nicole Bisanz

    Office Assistant
    (636) 379-6435
    @nicole

Contact e3 Gordon Stowe St. Louis

710 North Ellerman
O'Fallon, MO 63376
Office: (636) 379-6435
Fax: (636) 379-6439

  • e3 Expertise

    Expertise

    Our staff of audiologists, hearing instrument specialists, and NASED-certified technicians offers you unparalleled expertise. We take a consultative approach to learn your pain points so we can equip you with the right audiology instruments to meet your unique needs.

  • e3 Excellence

    Excellence

    Our products and customer service meet the highest standards of excellence. We only provide audiology equipment and supplies from the most trusted manufacturers, and only employ the audiology world’s most skilled technicians and sales consultants.

  • e3 Everyday

    Everyday

    Wherever you are located in the United States, there is an e3 office within arm’s reach. This saves you time and money, and allows us to easily work with you on an everyday basis.