What Quill does

Quill.org is a 501(c)(3) nonprofit that operates a free, web-based literacy platform for K-12 students in the United States and internationally. The platform delivers adaptive grammar and writing instruction through six core learning tools — Quill Grammar (250+ sentence activities), Quill Connect (sentence combining), Quill Lessons (teacher-led whole-class instruction), Quill Diagnostic (skill-gap assessment with personalized learning plans), Quill Proofreader (150+ editing passages), and the more recent Quill Reading for Evidence (nonfiction texts paired with AI-powered writing prompts). Content is aligned to Common Core standards, College Board AP/Pre-AP/SpringBoard curricula, and TEKS (Texas), and the ELL Diagnostic is translated into 16 languages. The platform has reached 12 million students who have written 3 billion sentences, and is used by more than 44,000 schools including Boston Public Schools, KIPP, Houston ISD, and Orange County Public Schools.

The technology stack is an AI-powered adaptive learning platform layered on third-party large language models from Microsoft Azure Cognitive Services, Google Gemini, and OpenAI. These models generate personalized, instant feedback on student writing and power the recommendation engine that creates individualized learning plans from diagnostic results. The platform is delivered via cloud infrastructure (Heroku, AWS), is accessible via assistive technologies (JAWS, VoiceOver), and integrates through SSO with Google Classroom, Clever, and ClassLink, and via LTI with Canvas, Nearpod, and Amplify.

Quill monetizes via a hybrid model: the core platform is freemium and free indefinitely, while Quill Premium — a tiered subscription at $115/teacher/year for individual licenses with custom-priced School and District licenses — provides advanced reporting, progress dashboards, and data integrations. As a nonprofit, the organization is primarily funded by philanthropic grants from the Bill & Melinda Gates Foundation, Google.org, the Overdeck Family Foundation, the Patrick J. McGovern Foundation, Axim Collaborative, Siegel Family Endowment, Fast Forward, and Robinhood. Distribution is product-led and community-led, relying on teacher word-of-mouth, integration partnerships, and content marketing rather than paid advertising.

Name

Quill

Legal name

Empirical Resolution Inc. doing business as (DBA) Quill.org

Website

https://quill.org

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

Quill.org is a 501(c)(3) nonprofit that provides free, AI-powered interactive writing and grammar activities for K-12 students, reaching 12 million students across 44,000+ schools through a freemium platform supplemented by teacher, school, and district subscriptions and foundation funding.

Ownership category

akta.pro rank

Product category

K-12 Literacy and Writing Instruction Software

NAICS

Educational Support Services (611710), Exam Preparation and Tutoring (611691)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Literacy Foundations (Phonics, Reading Fluency, Comprehension) Platforms (EDAFAOAD)

akta.pro secondary industries

Reading Fluency & Speed Reading Programs (EDAMAJAK), Teacher Tools for Language & Literacy (Lesson Planning, Assignments, Feedback) (EDAFAOAN), ESL/ELL Literacy & Academic English Support (EDAMAJAJ), Survey, Formative Assessment & Classroom Response (Quizzes/Polls) Tools (EDAFADAN)

Keywords

• K-12 literacy platform
• Writing instruction software
• Adaptive learning tools
• Educational technology platform
• AI writing feedback

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Freemium Core Platform: All core tools, apps, and activities remain free forever for all users. Teachers can see student results in the scorebook and hover over activity results for details at no cost.
2. Quill Premium Subscriptions: Annual subscription model with three tiers: Teacher Premium ($115/year covering all students for one teacher), School Premium (site-wide license covering all teachers and students), and District Premium (custom pricing with on-site training and district dashboards).
3. Foundation and Donor Funding: Nonprofit funding from foundations including Bill & Melinda Gates Foundation, Google.org, Overdeck Family Foundation, Robinhood, Siegel Family Endowment, Fast Forward, and Axim Collaborative to support operations and financial aid programs.

Pricing tiers

Go-to-market motion3 records

Distribution channels7 records

Marketing channels6 records

Core offering

Quill.org provides a free, nonprofit K-12 literacy platform that delivers interactive writing and grammar activities to elementary, middle, and high school students. Its suite of learning tools (Quill Grammar, Quill Connect, Quill Lessons, Quill Diagnostic, Quill Proofreader, and Quill Reading for Evidence) uses AI-powered feedback and adaptive diagnostics to build writing, grammar, and reading comprehension skills, while a paid Quill Premium tier adds advanced reporting and dashboards for teachers, schools, and districts.

Product overview

Quill.org is a nonprofit educational technology platform offering free interactive writing and grammar activities for K-12 students. The core platform consists of six learning tools: Quill Grammar (250+ sentence activities for basic mechanics), Quill Connect (sentence-combining), Quill Lessons (whole-class interactive instruction), Quill Diagnostic (skill-gap assessments with personalized learning plans), Quill Proofreader (150+ editing passages), and Quill Reading for Evidence (nonfiction texts with AI-powered writing prompts). These tools are supplemented by a library of 800+ activity packs, AP/Pre-AP/SpringBoard curriculum-aligned activities, Social Studies activities (including OER Project world history partnerships), and Interdisciplinary Science activities. Quill Premium (Teacher, School, or District tiers) adds advanced reporting, progress dashboards, and data integrations. The platform integrates via SSO with Google, Clever, and ClassLink; via LTI with Canvas, Nearpod, and Amplify; and supports accessibility via JAWS and VoiceOver. Quill's AI-Enabled Features use multiple LLM backends (Microsoft Azure Cognitive Services, Google Gemini, OpenAI) to generate personalized writing feedback and recommendations. The platform is used by over 44,000 schools and has served 12 million students who have written 3 billion sentences.

Differentiator

Problem solved

Functional benefit

Brands

• Quill Premium: A paid subscription tier providing advanced reporting, progress reports, school-wide dashboards, and data integrations for teachers and administrators.
• Quill Learning Tools
• Quill Meetings

Products and services

• Quill Grammar Quill Grammar offers more than 250 sentence writing activities for students to practice basic grammar skills from comma placement to parallel structure. Activities are designed to be completed in 10 minutes with instant feedback that allows students to retry after mistakes. Over 200 exercises are aligned with Common Core language standards, and teachers receive in-depth performance reports.
• Quill Connect Quill Connect helps students advance from fragmented and run-on sentences to complex, well-structured ones using the evidence-based strategy of sentence combining. Students combine multiple ideas into a single sentence and receive instant feedback designed to improve clarity and precision.
• Quill Lessons Quill Lessons enables teachers to lead whole-class and small-group writing instruction through interactive slides containing writing prompts. The entire class responds to each prompt and each activity provides a lesson plan, writing prompts, discussion topics, and a follow-up independent practice activity.
• Quill Diagnostic Quill Diagnostic quickly determines which skills students need to work on through diagnostics covering vital sentence construction skills. It generates personalized learning plans based on student performance and includes ELL Diagnostics with translations in 16 languages.
• Quill Proofreader Quill Proofreader teaches students editing skills by having them proofread passages. Students edit passages and receive personalized exercises based on their results, with more than 150 expository passages covering common grammatical errors.
• Quill Reading for Evidence Quill Reading for Evidence provides nonfiction texts paired with AI-powered writing prompts that enable deeper thinking. Students read a nonfiction text and build comprehension through writing prompts that require citing evidence from the text, with Quill coaching through custom, targeted feedback on each revision.
• Quill Premium Quill Premium is the paid subscription offering advanced reporting features, Quill Progress Reports, and school-wide dashboards for teachers and administrators. It is available as Teacher License ($115/year, covering all students for one teacher), School License (site-wide), or District License (custom pricing with on-site training and district dashboards), with financial aid available for schools with demonstrated need. As of January 2026, Teacher Premium pricing was updated; legacy $80 annual rate is maintained for users who keep auto-renewal enabled.
• AP / Pre-AP / SpringBoard Activities Official free AP English writing practice activities aligned with AP, Pre-AP, and SpringBoard curricula, including in-content activities based on Pre-AP texts and key writing skills from these college-preparatory programs.
• Social Studies Activities Social Studies Activities build social studies knowledge through reading and writing practice, including Reading for Evidence activities about world history developed with the OER Project.
• Interdisciplinary Science Activities Interdisciplinary Science Activities explore reading and writing activities focused on AI and STEM topics, connecting science content with literacy skill development.

Quantifiable outcome

• 1.6x Rate of Growth in writing skills demonstrated through research studies
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability5 records

Feature7 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• AmplifycoreTechnology or Integration · 6 March 2026Amplify users can access Quill activities in their Amplify accounts by navigating to the ELA Apps section and clicking the Quill icon. Amplify users can assign any of Quill's activities by visiting quill.org/amplify. Note: partnership does not yet support saving student data in data reports in teachers' Amplify accounts.
• GooglecoreTechnology or IntegrationGoogle provides cloud services, Google Workspace integration, Google Accounts SSO, and Google Classroom integration for roster sync. Google Gemini also powers Quill Learning Tools AI features.
• OpenAIcoreTechnology or IntegrationOpenAI provides large language model technology powering Quill Learning Tools AI features for writing feedback and instruction.
• Microsoft AzurecoreTechnology or IntegrationMicrosoft Azure Cognitive Services provides AI technology powering Quill Learning Tools.
• ClevercoreTechnology or IntegrationClever Instant Login provides SSO integration for schools using the Clever platform to access Quill.
• ClassLinkcoreTechnology or IntegrationClassLink provides SSO integration options for schools using ClassLink to access Quill.
• OER ProjectminorStrategic or Co-development PartnerQuill's Curriculum Team partnered with OER Project to create Reading for Evidence activities about world history.
• College BoardcoreOthersQuill provides official free AP English writing practice and Pre-AP activities aligned to College Board standards. College Board, AP, Pre-AP, and acorn logo are registered trademarks of College Board.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• NoRedInk: NoRedInk is a direct competitor offering adaptive grammar and writing instruction for K-12 students. It targets the same teacher-led, Common Core-aligned writing practice market as Quill with personalized feedback loops and freemium/premium tiers.
• CommonLit: CommonLit is a nonprofit EdTech platform providing free reading comprehension and literacy materials for K-12 classrooms. Like Quill, it operates on a freemium nonprofit model with district premium tiers and serves similar ELA teacher and student populations.
• Newsela: Newsela provides differentiated nonfiction content with reading comprehension assessments for K-12, overlapping with Quill Reading for Evidence. Both serve ELA teachers, align to standards, and offer district-level subscriptions with premium reporting.
• ReadWorks: ReadWorks is a nonprofit K-12 literacy platform offering free reading comprehension passages and question sets aligned to standards. It addresses a closely adjacent literacy use case (reading comprehension) to Quill's reading-for-evidence tool.

Broad incumbents

• Grammarly: Grammarly offers AI-powered writing assistance broadly across consumer and education markets. While not K-12-only, its Grammarly Education product competes with Quill's AI feedback capabilities and serves overlapping student and teacher segments.
• Khan Academy: Khan Academy is a large nonprofit EdTech platform offering free instructional content across subjects including grammar and writing. It overlaps with Quill on free, standards-aligned ELA practice and similar teacher/student audiences in K-12.
• Lexia Learning: Lexia Learning offers adaptive literacy and reading programs for K-12 schools with a strong focus on struggling readers. It competes for district literacy budgets and overlaps with Quill Diagnostic and ELL-focused offerings.
• IXL Learning: IXL Learning provides adaptive practice across K-12 subjects including language arts. It competes for the same district-level ELA budgets and offers similar diagnostic, standards-aligned, and personalized learning capabilities at scale.
• Carnegie Learning: Carnegie Learning offers AI-driven literacy and math instruction for K-12, including adaptive writing and reading tools. It overlaps with Quill on ELA personalization and competes for district-level ELA platform contracts.
• Edmentum: Edmentum provides K-12 online learning, assessment, and literacy solutions for districts. It competes with Quill for ELA budget allocations within broader district instructional software portfolios.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@Quillorg
• Facebookfacebook.com/quill.org
• LinkedInlinkedin.com/company/quill-org
• TikToktiktok.com/@writewithquill
• Xx.com/quill_org

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds7 records

Investors7 records

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 Quill