For families of spellers
Your child has a voice.
Help them find it.
The Lost Puzzle Piece is the only directory of certified RPM, S2C, and Spellers Method providers for nonspeaking and minimally verbal autistic children.
154+
Certified Providers
35
States Covered
1 in 36
Children with Autism
Free
To Search
What is RPM?
A method that gives nonspeaking children a voice
Rapid Prompting Method (RPM) was developed by Soma Mukhopadhyay for nonspeaking and minimally verbal autistic individuals. Using letterboards, stencils, and keyboards, RPM gives learners a way to spell out their thoughts — and for many families, it unlocks a world they never knew existed.
RPM assumes competence. It treats every nonspeaking person as an intelligent individual with things to say. And time and again, when given the right tools and support, they prove it.
“I always had things to say. I just needed a way to say them.”
— A speller, as told through a letterboard
Find an RPM Provider in Your State
Browse our directory of 154 certified providers across 35 states.
Don't see your state? Browse virtual providers who serve families nationwide.
Why This Directory Matters
Finding an RPM provider shouldn't require months of digging through old blog posts and Facebook groups.
Hard to Find
Certified RPM providers are scattered across the country with no central, up-to-date directory. Until now.
Time-Sensitive
Early access to communication methods matters enormously. Every month counts. We make the search faster.
Built by a Parent
We know what it's like to search. This directory was built by a family who has lived it.
Learn More
View all articles →7 min read
What is RPM (Rapid Prompting Method)? A Guide for Parents
A compassionate guide to Rapid Prompting Method (RPM) for parents of nonverbal or minimally verbal autistic children. Learn what RPM is, what a session looks like, and how to find a provider near you.
6 min read
What is a Speller? Understanding the Nonspeaking Autism Community
Learn about the 'speller' community — nonspeaking and minimally speaking autistic individuals who communicate through letterboards. What this means, why it matters, and how to support your child.
8 min read
How to Find an RPM Provider Near You: A Step-by-Step Guide
A practical guide to finding a qualified RPM (Rapid Prompting Method) provider for your nonspeaking autistic child. What to look for, questions to ask, and what to expect in a first session.
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