The following organizations address learning disabilities at the general level:

Learning Disabilities Association of America (LDA)
National nonprofit organization dedicated to creating opportunities for success for all individuals affected by learning disabilities and to reducing the incidence of learning disabilities in future generations.
info@LDAAmerica.org
1-412-341-1515
ldaamerica.org

National Center for Learning Disabilities (NCLD)
National nonprofit organization dedicated to improving the lives of children and adults with learning and attention issues—by empowering parents and young adults, transforming schools and advocating for equal rights and opportunities.
ncld.org

According to the National Institute of Mental Health (NIH), "Dyslexia is a brain-based type of learning disability that specifically impairs a person's ability to read." The following organizations support individuals diagnosed with dyslexia:

Children's Dyslexia Center - Cleveland
Scottish Rite Masonic charity that provides tutoring at no charge to children from early elementary through high school who have been diagnosed as dyslexic.
View in Provider Directory

Decoding Dyslexia OH
Grassroots, parent-run movement with the mission of raising awareness for dyslexia and the laws pertaining to it and empowering/uniting parents to promote change within the educational system.
info@decodingdyslexiaOH.org
decodingdyslexiaoh.org

International Dyslexia Association (IDA)
International organization with the mission of creating a future for all individuals who struggle with dyslexia and other related reading differences so that they may have richer, more robust lives and access to the tools and resources they need.

Northern Ohio Branch (NOBIDA)
View in Provider Directory

National
info@dyslexiaida.org
1-410-296-0232
dyslexiaida.org

Learning Ally
National non-profit dedicated to helping students with print disabilities, including blindness, visual impairment and dyslexia. Learning Ally improves the way students learn at home and in the classroom.
custservesupport@learningally.org
1-800-221-4792
learningally.org

Yale Center for Dyslexia & Creativity (YCDC)
The preeminent source of cutting-edge research, informed advocacy and trustworthy resources to help those with dyslexia reach their full potential. Through research and advocacy work, YCDC conducts studies and builds awareness about dyslexia. We mobilize grassroots efforts to narrow the reading achievement gap for all students, including low-income students of color, through policies that help dyslexic children succeed.
dyslexia.yale.edu

According to the National Institute of Mental Health (NIH), "People with math learning disability, also known as dyscalculia, have difficulty understanding math concepts and solving even simple math problems despite adequate education." The following organizations support individuals diagnosed with dyscalculia:

Dyscalculia.org
Michigan nonprofit, offering resources for students diagnosed with math learning disabilities.
help@dyscalculia.org
1-313-300-1901
dyscalculia.org

According to the National Institute of Mental Health (NIH), "Developmental dyspraxia is a disorder characterized by an impairment in the ability to plan and carry out sensory and motor tasks. " The following organizations support individuals diagnosed with dyspraxia:

Dyspraxia Foundation USA
The Dyspraxia Foundation USA is a nonprofit that provides information and promotes awareness of dyspraxia by sharing stories. The organization also runs an active Facebook page where it accepts questions from families.
foundation@mail.dyspraxiausa.org
1-847-780-3311
dyspraxiausa.org