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About

Tess Mayne

M.Cl.Sc., S-LP(C), Reg. CASLPO

Tess Mayne is a registered speech-language pathologist (SLP) and the founder of Words Plus, a private speech-language therapy practice based in Oakville, Ontario that supports autistic and minimally-speaking children and their families through neurodiversity-affirming, relationship-based care, including the use of Augmentative and Alternative Communication (AAC).

Experience

Early Career

Before founding Words Plus, Tess worked for nearly 14 years at Ontario’s largest children’s treatment centre as an SLP, supporting hundreds of children and families across several specialized teams, including:

    • Preschool Speech and Language (PSL) Services: Tess provided publicly funded speech-language services to support the communication development of children from birth until school entry and to coach families and other professionals in supporting communication in everyday routines; On more than 20 occasions, Tess also facilitated More Than Words™ – the Hanen Program® for parents of autistic children or children who may benefit from social communication support
    • Autism Diagnostic Hub:  Tess conducted interdisciplinary autism assessments for young children, in collaboration with clinical psychologists, and developmental paediatricians to support timely diagnosis and coordinated recommendations for families
Words Plus

In 2024, Tess saw the need to establish Words Plus, combining her extensive experience with her strong values, to focus on her passions: neurodiversity, AAC, and collaboration. This decision was shaped by families she worked with who knew their children were capable, thoughtful, and intelligent, yet repeatedly encountered systems that underestimated them or focused primarily on what they could not do.

Through her work with autistic and minimally-speaking children, Tess saw how barriers to communication could lead to significant frustration and distress, particularly when children did not have access to communication tools that matched their strengths. She also saw how transformative it could be when families were treated as true partners and children were supported through approaches that respected their autonomy, interests, and ways of thinking.

In 2025, Tess launched Words Plus to offer this kind of care: neurodiversity-affirming, relationship-based, collaborative speech-language therapy that supports children to communicate and connect in ways that are meaningful to them.

Education & Credentials

  • Master of Clinical Science (M.Cl.Sc.), Speech-Language Pathology – Western University
  • Registered with CASLPO (College of Audiologists and Speech-Language Pathologists of Ontario)
  • Certified Member of SAC (Speech-Language & Audiology Canada)
  • Individual Authorizer (IA) under Ontario’s Assistive Devices Program (ADP)
  • OAP (Ontario Autism Program) Provider listing approved

Additional Training and Certifications

  • AAC Training:
    • Foundations of AAC: An Interprofessional Course
    • Individual Authorizer Workshop 
    • Language Acquisition through Motor Planning (LAMP)™
    • Moving Forward with LAMP
    • TouchChat® Partner Program
  • Autism Diagnostic Observation Schedule (ADOS®-2):
    • Modules 1-4 and Toddler
  • Hanen Certifications:
    • It Takes Two to Talk™ for Parents of Children with Language Delays
    • More Than Words™ for Parents of Autistic Children or Children Who May Benefit from Social Communication Support
    • TalkAbility™ for Parents of Autistic Children Who Are Speaking in Sentences and Having Conversations
    • Target Word™ for Parents of Children Who Are Late Talkers
    • ABC and Beyond™ for Building Emergent Literacy in Early Childhood Settings
  • Motor Speech Training: 
    • Introduction to PROMPT
    • Bridging PROMPT Technique to Intervention
    • Speech and Stuttering Institute (SSI) Motor Speech Training Program
  • Other:
    • Carol Gray’s Social Stories™ (10.4)
    • Early Start Denver Model (ESDM; not practicing) 
    • Palin Parent-Child Interaction (Palin PCI) Therapy for Early Childhood Stammering
    • Lidcombe Program for Early Stuttering (not practicing)
    • Standard First Aid CPR C + AED

Tess brings a wealth of expertise, passion, and a deep commitment to helping children communicate and connect authentically. At Words Plus, she combines advanced training, evidence-based practices, and a warm, collaborative approach to help create meaningful and lasting change for every child and family she supports.

Whether you’re seeking guidance for early intervention, exploring AAC, or navigating autism-related needs, Tess is here to help. Contact Words Plus today to learn how.