
About Hello Speech: Providing Quality Speech Therapy Services
For over a decade, Mary Plain and Ronit Rosenblum have collaborated in helping children in Toronto and the Greater Toronto Area in successfully working toward their goals. Together, Mary, a Speech-Language Pathologist, and Ronit, a Behaviour Analyst and Communicative Disorders Assistant specialize in supporting individuals with a wide range of communication, developmental and learning differences.
Together they have developed Hello Speech Developmental Services - working with other professionals to help children across various areas of need, such as Speech Therapy, Diagnostic Assessments, Occupational Therapy, Behavioural Therapy, and Feeding.

Founder
Mary Plain
Mary Plain is a Master’s level Speech-Language Pathologist and is registered with the College of Audiologists and Speech-Language Pathologists of Ontario (CASLPO). Since 2005, she has been practicing with specialties in the areas of Autism Spectrum Disorder, Motor Speech Disorders, Social-Communication challenges, Late Talkers, and Language Disorders.
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Founder
Ronit Rosenblum
Ronit Rosenblum is a Registered Behaviour Analyst with the College of Psychology and Behaviour Analysis of Ontario and a Board Certified Behaviour Analyst. Ronit also holds the certificate of Communicative Disorders Assistant. She has had extensive training in supporting children and youth with autism and related disabilities as well as individuals with speech and language challenges. In 2011, she received a Masters degree in Education where she specialized in Special Education.
Our Specialists

Speech-Language Pathologists (SLP) & Speech-Language Therapy Assistants (SLTAs)/
Communicative Disorders Assistants (CDAs)
Our Speech-Language Pathologists (SLPs) and Speech-Language Therapy Assistants (SLTAs/CDA) support children in developing communication skills, including speech sounds, language, social communication, and early literacy. All SLPs are registered with the College of Audiologists and Speech-Language Pathologists of Ontario (CASLPO), and SLTAs/CDA provide therapy under their supervision.

Behaviour Analyst (RBA)/Board Certified Behaviour Analyst (BCBA)
Our Registered Behaviour Analysts (RBAs) and Behaviour Therapists (BTs) support children in building meaningful skills across communication, behaviour, emotional regulation, daily routines, and social interaction. RBAs are regulated professionals who assess needs, create individualized behaviour support plans, and oversee ongoing progress. BTs provide direct support by implementing these plans in your home, school, or community under RBA supervision. Our team uses evidence-based, child-centred strategies that prioritize safety, dignity, and family collaboration.

Autism Diagnostic team
Our Autism Diagnostic Assessments are completed by a team of experienced allied health professionals and physicians. This collaborative approach allows us to provide a comprehensive evaluation of your child’s development, communication, behaviour, and social interaction. Our assessments follow best-practice guidelines and include both clinical observation and caregiver input to ensure clear, accurate, and family-centred recommendations.

Occupational Therapists (OT) & Occupational Therapy Assistants (OTAs)
Our Occupational Therapists (OTs) and Occupational Therapy Assistants (OTAs) support children in developing gross and fine motor skills, managing sensory needs, and building independence in daily activities such as feeding, dressing, and toileting. All OTs are registered with the College of Occupational Therapists of Ontario (COTO), and OTAs provide therapy under their supervision.
