e3 Diagnostics New England  was established as the direct factory representative for Grason-Stadler (GSI) products in New England in the 1980s. We originally were located in the same building as manufacturing which was based in Littleton, Massachusetts. When space became an issue in the late 1980s, we acquired our own office at 531 King Street. Although we were a part of GSI, we operated as an independent sales and service office for the New England states.


With many years of experience in the audiologic and instrument fields, e3 Diagnostics New England offers its customers incomparable customer service and support. Our goal is to ensure, by the quality of the manufacturers that we represent, that our customers are getting the latest technology in audiological diagnostic and screening equipment. Our long term clients value the knowledge and attention to detail that we have and continue to offer.


Our NASED (National Association of Special Equipment Distributor) Certified Field Service Specialists have a combined 85+ years of field experience. They are factory trained and certified ensuring that all of our service and repairs are of the highest quality.

Your Local Experts

e3 Diagnostics New England is a leading distributor of audiology equipment in the New England area. With years of combined experience, our experts provide top-notch consultation, calibration, and repair services in Massachusetts. Get in touch with us today to learn more!

  • joe-mattio-nyc

    Joe Mattio

    Regional Sales Manager
    (978) 486-4425

  • Josie Hong

    Josie Hong AuD, MBA

    Sales Representative
    (978) 486-4425

  • e3 Expertise

    Matthew McCarthy

    Service Technician
    (978) 486-4425

  • e3 Expertise

    Josh Wilson

    Service Technician
    (978) 486-4425

  • david-martin-bos

    David Martin

    Service Technician
    (978) 486-4425

  • e3 Expertise

    Nupur Trivedi

    Administrative Assistant
    (978) 486-4425

  • ethney-rangulong-bos

    Ethney Rangulong

    Administrative Assistant
    (978) 486-4425

Contact e3 Diagnostics New England

531 King St, Unit 6
Littleton, MA 01460
Office: (800) 776-6276
Fax: (978) 486-4470

  • e3 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


    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


    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.