Dartmoor School

What Dartmoor School does

Dartmoor School is a private, NAIS-affiliated K–12 institution founded in 1990 by reading specialist Dori J. Bower in Bellevue, Washington. It operates four physical campuses across the greater Seattle/Eastside market — Bellevue, Seattle, Bothell, and Issaquah — and enrolls roughly 75 to 140 students annually with approximately 40 staff. The school is differentiated by its proprietary "Dartmoor Method," a one-to-one instructional model in which each student works exclusively with a single instructor under a diagnostic-prescriptive, mastery-based framework requiring 80% proficiency before progression.

The school's core product is personalized one-to-one academics for Grades 1–12, delivered through flexible full-time, part-time, dual-enrollment, and credit-recovery pathways on a per-credit tuition basis. Revenue is supplemented by Non-Public Agency (NPA) services in which Washington school districts contract Dartmoor to provide specially designed instruction for students with IEPs, and by an international student program enabled by SEVIS certification. Additional offerings include ESL, world languages, summer and test-prep programs, and NCAA-approved coursework.

The customer base spans neurodiverse learners (ADHD, Autism, dyslexia), gifted and twice-exceptional students, athletes and performers requiring flexible scheduling, international students pursuing American diplomas and university placement, district-referred students with IEPs, and homeschool families. Marketing and admissions are sales-led, primarily through the school's website, professional referrals from educational therapists and counselors, and direct district relationships. Pricing is quote-based and not publicly disclosed. The school holds AdvancED/Cognia accreditation, OSPI private-school and NPA approval, and affiliations with NAIS, WFIS, CEC, ADDA, LDA, and CHADD.

Name

Dartmoor School

Legal name

Dartmoor School

Website

https://dartmoorschool.org

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Dartmoor School is a Seattle/Eastside private K–12 school operating four campuses, delivering proprietary one-to-one personalized instruction (the Dartmoor Method) to roughly 75–140 neurodiverse, gifted, athlete, international, and district-placed students annually.

Ownership category

akta.pro rank

Product category

Private K-12 Education

NAICS

Elementary and Secondary Schools (6111), Elementary and Secondary Schools (611110), Educational Support Services (611710), Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro industry

PRIMARYEDAJAEAC

Alternative Schools (Behavioral/Disciplinary & Nontraditional Settings)

Education/K–12 / Primary & Secondary Education/Alternative & At-Risk K–12 Education (Continuation, Recovery, Juvenile)

SECONDARYEDAKAAAB

Learning Disabilities & Dyslexia Schools & Programs

Education/Special Education & Learning Support Services/Special Education Schools & Programs

SECONDARYEDAJAGAA

Gifted & Talented Education (GATE) Programs

Education/K–12 / Primary & Secondary Education/K–12 Special Programs (Gifted, ESL/ELL, Remedial, RTI/MTSS)

Keywords

• Private K-12 education
• One-to-one instruction
• Special education services
• International student programs
• Credit recovery courses

Headquarters

HQ city

Bellevue, Washington

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Tuition - Per Credit Basis: Dartmoor's tuition is on a per credit basis with one credit equivalent to a year of academic work. Students may complete one credit in a minimum of three months, allowing accelerated completion of coursework.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Dartmoor School is a private K-12 institution providing one-to-one personalized instruction for Grades 1-12 across four campuses in the Seattle/Eastside area. Its core offering is individualized education delivered through "The Dartmoor Method," a proprietary pedagogical model developed by founder Dori Bower that emphasizes diagnostic-prescriptive, mastery-based learning. The school also operates as a Washington State-approved Non-Public Agency (NPA) delivering IEP-aligned special education services for school districts.

Product overview

Dartmoor School is an NAIS-affiliated, fully accredited private school offering a personalized one-to-one education model as its core product. The school operates as a unified platform with multiple interconnected programs including Elementary, Middle, and High School academic programs (Grades 1-12), Non-Public Agency (NPA) services for students with IEPs, International Student Programs, Credit Courses and Credit Recovery, Summer Classes, Student Support and Test Preparation, ESL support, World Languages, and Dual Enrollment options. All programs are delivered through a one-to-one instructional model where each student works exclusively with one instructor, enabling customized curriculum responsive to individual learning profiles. The school has four campuses in the Seattle/Eastside area (Bellevue, Bothell, Issaquah, Seattle) and serves approximately 140 students with around 40 staff.

Differentiator

Problem solved

Functional benefit

Products and services

• One-to-One Academic Programs (Grades 1-12) Personalized one-to-one instructional programs for Grades 1-12, providing individualized curriculum tailored to each student's strengths, needs, interests, and aspirations. Each student works exclusively with one instructor across elementary, middle, and high school.
• Non-Public Agency (NPA) Services Approved by Washington State OSPI, partnering with school districts to provide individualized programs with specially designed instruction (SDI) to help students meet IEP goals. Services include one-to-one customized instruction, behavioral supports, and executive functioning support.
• International Student Program Year-round enrollment program for international students seeking to study at an accredited American independent school, earn a US high school diploma, improve English proficiency, or prepare for American university admission. Includes I-20 and SEVIS support.
• Credit Courses and Credit Recovery Full catalog of high school and middle school courses for credit, including credit remediation. Semester courses bear 0.5 credits; two semesters comprise 1.0 credit. Students can complete one credit in as few as three months on an accelerated schedule.
• Summer Classes Summer programs including preparation for middle school, high school, college, upcoming school year, and standardized tests (SAT, ACT). Open to students seeking credit coursework or supplemental support.
• English as a Second Language (ESL) English language support for students requiring ESL coursework, with provisional acceptance available based on successful completion of initial English Language coursework.
• World Languages World language instruction including French, Spanish, Italian, Chinese, German, Japanese, and ASL, with additional languages available upon request and availability of qualified instructors.
• Dual Enrollment Programs Flexible programs allowing students to dual enroll at another private or public school for electives and social activities while taking core coursework at Dartmoor. Also supports Running Start programs.

Quantifiable outcome

• Students can complete one academic year of credits (6 credits) in three to six months
• +1 more outcomes

Named customers1 record

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Eleven partnerships are on record, tiered core and minor.

• NAIS (National Association of Independent Schools)coreOthersDartmoor is an NAIS-affiliated school, providing association with the broader independent school community and access to resources and best practices for independent schools.
• AdvancEDcoreOthersDartmoor holds full accreditation from AdvancED (now Cognia), demonstrating adherence to rigorous standards for academic quality and continuous improvement.
• OSPI (Office of Superintendent of Public Instruction)coreOthersApproved by Washington State OSPI as a private school and Non-Public Agency (NPA), enabling Dartmoor to serve students with IEPs placed by school districts.
• NCAA (National Collegiate Athletic Association)coreOthersHigh school coursework approved by NCAA, allowing student athletes to maintain eligibility for college sports programs.
• SEVIS (Student and Exchange Visitor Information System)coreOthersParticipates in SEVIS program enabling enrollment of international students on F-1 visas with proper I-20 documentation processing.
• WFIS (Washington Federation of Independent Schools)minorOthersMember of Washington Federation of Independent Schools, providing networking and advocacy within the state independent school community.
• CEC (Council for Exceptional Children)minorOthersAffiliated with CEC, the premier professional organization dedicated to improving the educational success of individuals with exceptionalities.
• ADDA (Attention Deficit Disorder Association)minorOthersAffiliated with ADDA to support students and families affected by ADHD, providing resources and expertise in serving this population.
• LDA (Learning Disabilities Association of America)minorOthersAffiliated with LDA to enhance support for students with learning disabilities through access to resources and best practices.
• CHADDminorOthersAffiliated with CHADD (Children and Adults with Attention-Deficit/Hyperactivity Disorder) to provide expertise in serving students with ADHD.
• Washington State School DistrictscoreStrategic or Co-development PartnerAs an approved Non-Public Agency (NPA), Dartmoor partners with Washington school districts to provide individualized educational programs on behalf of districts. Services include one-to-one instruction, IEP-aligned specially designed instruction (SDI), behavioral supports, and coordination with district personnel.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Fusion Academy: Fusion Academy operates a national one-to-one private middle and high school model very similar to Dartmoor's, with individualized scheduling, credit courses, and flexible pacing. Both schools charge on a per-course basis and target students who don't thrive in traditional classrooms.
• Winston Preparatory School: Winston Prep is a network of private schools focused on students with learning disabilities such as dyslexia, ADHD, and executive-function deficits — a near-identical primary population to Dartmoor's neurodiverse segment. Both schools emphasize individualized instruction and small-group specially designed instruction.
• The Janus School: The Janus School is a Pennsylvania private school for students with learning differences and social-emotional challenges, providing small-group and individualized instruction. Comparable alternative-school positioning to Dartmoor.
• Bridges Academy: Bridges Academy is a private school in Los Angeles specifically designed for twice-exceptional (gifted + learning difference) students — a population Dartmoor explicitly serves. Both schools combine intellectual challenge with individualized support for complex learning profiles.
• The Prentice School: The Prentice School is an Orange County private school serving students with language-based learning disabilities through individualized, multi-sensory instruction. Directly comparable special-education private school model to Dartmoor's NPA-supported offerings.
• Westmark School: Westmark is a private K-12 school in Los Angeles for students with learning differences, providing individualized instruction in small groups. Comparable mission, accreditation posture, and target learner profile to Dartmoor.
• Charles Armstrong School: Charles Armstrong is a Bay Area private school serving students with language-based learning differences (dyslexia, dysgraphia). Its individualized diagnostic-prescriptive approach mirrors the Dartmoor Method, and both schools sit in high-cost metros with similar parent demographics.
• New Way Academy: New Way Academy in Phoenix is a private K-12 school for students with learning differences including dyslexia, ADHD, and Autism Spectrum Disorder. Its small-class, individualized approach parallels Dartmoor's mission and learner profile.

Broad incumbents

• Laurel Springs School: Laurel Springs is an accredited online private school offering K-12 college-prep, homeschool, and individualized learning pathways. While it operates in a different delivery format than Dartmoor's in-person one-to-one model, it competes for the same families seeking flexible, accredited alternatives to traditional schools.
• K12 (Stride Learning): Stride (formerly K12 Inc.) is a large online-learning provider serving K-12 students, including those seeking alternatives to brick-and-mortar schools. It competes for the broader alternative-education wallet but at much larger scale and with technology-led delivery rather than Dartmoor's instructor-led one-to-one model.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/school/dartmoor-school

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Dartmoor School