SLINGERLAND INSTITUTE FOR LITERACY

Name

SLINGERLAND INSTITUTE FOR LITERACY

Legal name

Slingerland Literacy Institute

Website

https://slingerland.org

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Literacy Education and Educator Professional Development

NAICS

Educational Support Services (6117)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Structured Literacy / Orton-Gillingham Intervention Services (EDAKAJAC)

akta.pro secondary industries

Reading Intervention & Remediation (Decoding, Fluency, Comprehension) (EDAKAJAD), Literacy & Reading Intervention (Phonics, Fluency, Comprehension) (EDAKADAA), Dyslexia & Structured Literacy (Orton-Gillingham) Tutoring (EDANAFAB), K–12 Remedial Reading & Literacy Intervention (EDANAJAA)

Keywords

• Structured literacy training
• Multisensory reading instruction
• Educator professional development
• Dyslexia intervention certification
• Language-based learning support

Headquarters

HQ city

Bellevue

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Training and Certification Classes: Revenue from comprehensive classes (Introductory and Continuum), extended practicum classes, and short-format classes. Comprehensive classes cost $215 (Introductory). Short classes cost $580 for Techniques for Teaching Handwriting. Each comprehensive class provides 6 PCE credits through the University of San Diego. Certification renewal is $150 every three years.
2. Subscriptions: Annual, multi-year, and lifetime subscriptions providing access to the Slingerland Library (videos and downloadables), subscriber-only resources, and discounts on courses and materials. One-year: $125; Two-year: $225; Three-year: $325; Lifetime: $750.
3. Materials and Publications Sales: Sale of Slingerland teaching materials, books, and publications including The Slingerland Multisensory Approach: A Practical Guide for Teaching Reading, Writing, and Spelling 4th Edition ($90), Implementation Guide Level A ($65), Yellow Card Pack ($17), and other teaching tools. Subscribers receive a 10% discount on materials.
4. Donations: As a 501(c)(3) non-profit organization, Slingerland accepts donations to support its mission of promoting excellence in literacy instruction. Donations funded the 4th Edition of the Practical Guide and equity-based scholarships.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

Slingerland Literacy Institute trains educators in the Slingerland Approach, a simultaneous multisensory instructional technique adapted from the Orton-Gillingham method for teaching reading, writing, and spelling. It offers comprehensive and short-format classes, extended practicum coaching, CST and CSIT certification programs, a subscriber library of videos and resources, and publishes supporting teaching materials and textbooks.

Product overview

Slingerland Literacy Institute offers the Slingerland Approach, a simultaneous multisensory instructional technique for teaching reading, writing, and spelling based on the Orton-Gillingham method. The core offering centers on the Practical Guide (4th Edition) textbook and includes multiple training formats: Comprehensive Classes (Introductory and Continuum levels) for intensive month-long immersion, Extended Practicum for year-long coaching, Short Classes for focused skill training, and Sustaining Slingerland Skills Workshops for continuing education. Supporting products include the Slingerland Screening Procedures with accompanying Screening Calculator for assessment, the Slingerland Library with video demonstrations and downloadable resources, and teaching materials like the Implementation Guide Level A and Yellow Card Pack. The institute also offers certification programs at two levels: Certified Slingerland Teacher (CST) and Certified Slingerland Instructor of Teachers (CSIT), with subscription tiers providing ongoing access to materials and discounts. Equity-based scholarships support educator access to training.

Differentiator

Problem solved

Functional benefit

Products and services

• Slingerland Comprehensive Classes Intensive month-long immersion training classes (Introductory and Continuum levels) that teach educators how to implement the Slingerland Approach as classroom teachers and tutors, including practicum with students. Approved for 6 PCE credits through the University of San Diego.
• Slingerland Extended Practicum One-on-one coaching through a school year, providing participants with supervised practice and mentorship as they apply the Slingerland Approach with students.
• Slingerland Short Classes Focused classes on specific elements of the Slingerland Approach, such as Screening Procedures, Techniques for Teaching Handwriting, and other specialized topics.
• Sustaining Slingerland Skills Workshops Multi-day and one-day continuing education workshops that help certified educators maintain and refresh their Slingerland teaching skills.
• Slingerland Screening Procedures Assessment tools designed to help classroom teachers identify learning strengths and weaknesses of students, including Forms A, B, C, and D for students from kindergarten through high school and beyond.
• Slingerland Screening Calculator An online tool where users enter raw screening data (Errors and Self-Corrections by subtest) to generate printable and downloadable mini-reports that assist in interpreting Slingerland Screening Test results.
• Slingerland Library A subscriber-only hub containing the Slingerland Video Library with demonstration class clips by Certified Instructors of Teachers and the Slingerland Resource Library with fillable lesson plans, teacher and student references.
• SLI Subscription Annual, multi-year, and lifetime subscriptions providing 10% off materials, discounts on Sustaining Slingerland Skills Workshops and CEU classes, and access to the Slingerland Library (videos and downloadables).
• The Slingerland Multisensory Approach: A Practical Guide for Teaching Reading, Writing, and Spelling (4th Edition) The foundational textbook combining three original Slingerland textbooks and additional best practices in an updated, easy-to-use reference for implementing the Slingerland Approach. Priced at $90.
• Implementation Guide: Level A Lesson plans for use with the Slingerland Structured Multisensory Approach, containing example scope and sequence of initial letter/sound instruction and activities for each letter of the alphabet. Priced at $65.
• Yellow Card Pack Cards for use in Slingerland lessons to help students learn how individual sounds in English have multiple spellings. Includes 5" x 8" cards and 10" x 8" cards. Priced at $17.
• Certified Slingerland Teacher (CST) Certification Certification level for educators who have completed the full course of classes on implementing the Slingerland Approach, including Introductory Comprehensive, Continuum Comprehensive, and practicum requirements.
• Certified Slingerland Instructor of Teachers (CSIT) Certification Advanced certification for CSTs pursuing additional training focused on teaching educators how to use the Slingerland Approach, including Intern 1, Intern 2, and Intern Extended Practicum.
• Certification Renewal Service Three-year renewal process for CST and CSIT certifications, including CEU documentation, background check submission, and fee payment of $150.

Quantifiable outcome

• Summer class enrollment increased by 15% from 2023 to 2024
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Hamlin Robinson SchoolcoreStrategic or Co-development PartnerHamlin Robinson School in Seattle, WA is a full Strategic Partner of Slingerland Literacy Institute. As a strategic partner, the school maintains organizational membership, ensures all Slingerland classes consistently implement the complete Slingerland format, requires all teachers providing Slingerland instruction to have completed at least the Introductory Comprehensive class, provides paid on-site supervision by a certified CSIT, offers annual staff development, makes Slingerland classrooms available for observation, hosts practicum teachers-in-training, offers onsite comprehensive classes at least every two years, and participates in annual Slingerland instructor meetings.
• Assets School (Honolulu, HI)coreStrategic or Co-development PartnerAssets School is listed among schools employing multiple faculty members trained in the Slingerland Approach, with a comprehensive relationship including hosting comprehensive training classes (Introductory and Continuum Comprehensive with instructor Sue Winters in June-July 2024).
• Valley Christian Schools (San Jose, CA)coreStrategic or Co-development PartnerValley Christian Schools in San Jose, CA is listed as a school employing multiple faculty trained in the Slingerland Approach. Hosted Introductory and Continuum Comprehensive classes (with instructor Shirley Hitchcock, June-July 2024).
• Del Valle Independent School District (TX)coreStrategic or Co-development PartnerDel Valle ISD in Texas is listed as employing multiple faculty trained in the Slingerland Approach across all 9 of its elementary schools — the most comprehensive district-wide adoption listed.
• University of San DiegominorStrategic or Co-development PartnerBoth the Introductory Comprehensive and Continuum Comprehensive classes are approved for six (6) graduate level extension credits through the University of San Diego. Credits are not part of a degree program and are at the option of the teacher/participant. Registration for credits must be completed on or before the first day of class.
• 14 Additional Partner SchoolsminorOthersAdditional schools listed include: Assumption-St. Bridget School (Seattle, WA), Community Education Council (Monsey, NY), Hope Academy (Concord, CA), Livermore Valley Academy (Livermore, CA), North Bridge Academy (Mill Valley, CA), Our Lady of the Lake Catholic School (Seattle, WA), St. Benedict Catholic School (Seattle, WA), St. Luke School (Shoreline, WA), St. Mary Magdalen Catholic School (Everett, WA), St. Monica Catholic School (Mercer Island, WA), Stellar Academy for Dyslexics (Newark, CA), Trinity Classical Academy (Valencia, CA). These schools have multiple faculty trained in the Slingerland Approach but are not formal Strategic Partners.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Wilson Language Training: Provides the Wilson Reading System, a structured literacy program also based on Orton-Gillingham principles. Competes directly with Slingerland for the same K–12 educator and district training dollars, and similarly holds IMSLEC and IDA accreditation.
• Barton Reading & Spelling System: An Orton-Gillingham-based tutoring system widely used for one-on-one dyslexia intervention. Targets the same tutor and parent segments as Slingerland, with overlapping screening and remediation tooling.
• Lindamood-Bell Learning Processes: Delivers multisensory literacy intervention programs (LiPS, Seeing Stars, Visualizing & Verbalizing) to schools and clinics. Competes with Slingerland in the structured-literacy intervention space for schools and individual learners with dyslexia.
• Institute for Multisensory Education (IMSE): Trains educators in Orton-Gillingham-based structured literacy through online and in-person programs. Targets the same K–3 and interventionist audience and competes for district professional-development contracts.
• Neuhaus Education Center: Provides structured literacy and dyslexia intervention training to educators in Texas and beyond. Directly comparable as a non-profit literacy-training organization offering accredited Orton-Gillingham-based programs.
• Spalding Education International: Delivers the Spalding Method, a structured multisensory approach to reading, writing, and spelling. Competes with Slingerland for K–6 classroom teachers seeking whole-class structured literacy training.
• Really Great Reading: Provides structured literacy curricula, assessments, and professional development aligned with the Science of Reading. Targets the same K–12 district and interventionist segments as Slingerland with a more productized offering.

Broad incumbents

• Lexia Learning (a Cambium company): A larger ed-tech company offering structured literacy software (Lexia Core5, Lexia PowerUp) to schools and districts. Competes indirectly for the same literacy-instruction budget, but with a technology-led, broader product portfolio rather than teacher-led training.
• Houghton Mifflin Harcourt: Major K–12 publisher with reading and intervention programs (e.g., Read 180, HMH Into Reading). Competes for district literacy-adoption dollars at scale with broader curricular offerings rather than specialized structured-literacy certification.

Others

• International Dyslexia Association: Professional association that accredits structured-literacy training programs including Slingerland's. Not a competitor, but a critical ecosystem gatekeeper whose accreditation standards shape competitive positioning in the market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@SlingerlandInst
• Facebookfacebook.com/SlingerlandInst
• LinkedInlinkedin.com/company/slingerland-literacy-institute

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SLINGERLAND INSTITUTE FOR LITERACY