NoRedInk
NoRedInk is a K-12 web-based adaptive learning platform serving US Grades 3-12 classrooms and approximately half of US school districts with personalized grammar, writing, and ELA instruction. It operates a freemium-to-district-Premium model anchored by an AI-powered essay grading assistant and integrated with Canvas, Clever, and Schoology.
- Company typePrivate
- Founded2013
- HeadquartersSan Francisco, United States
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What NoRedInk does
NoRedInk is a US K-12 educational technology company that operates a web-based adaptive learning platform focused on grammar, writing, and English Language Arts instruction for students in Grades 3 through 12. The platform delivers personalized exercises that incorporate student interests (celebrities, characters, friends, pets), scaffolded essay writing with structured guidance, AI-powered automated essay grading and feedback, a Language Support Suite for English learners (including translations and text-to-speech), and Originality Insights for academic integrity monitoring. Standards-aligned reporting spans teacher, school, and district levels and aligns with Common Core, TEKS, SOL, NWEA MAP, SAT, ACT, Smarter Balanced, WIDA, and AP English.
The platform is built on a distinctive functional-programming stack: Elm on the frontend and Haskell with Ruby on Rails on the backend, supported by Kubernetes, Redis, and PostgreSQL. The engineering team has open-sourced internal libraries (nri-prelude, nri-redis, nri-postgresql) and adopted or maintained forks of community Elm libraries (elm-safe-virtual-dom), reflecting a rare depth of Elm/Haskell investment for a company of its size. The AI layer is concentrated in the AI-Powered Grading Assistant, which currently covers argumentative and literary analysis essays and is being expanded to additional genres.
NoRedInk runs a freemium go-to-market motion: individual teachers sign up for free at noredink.com and self-serve classrooms through a product-led growth funnel, while a Premium tier is sold under separate, typically multi-year district agreements that include professional development, deeper reporting, expanded content (1,000+ skills, 10+ writing genres), and LMS integrations with Canvas, Clever, and Schoology. The company reports usage in approximately 1 in 2 US school districts, with 101-250 employees, $58 million in cumulative disclosed venture funding since founding (most recently a $50 million round in August 2021 led by Susquehanna Growth Equity), and active compliance with FERPA, COPPA, and CCPA. The April 2025 National Writing Project partnership and the staged expansion of the AI Grading Assistant through 2024-2025 indicate a strategy centered on deepening AI differentiation and educator ecosystem credibility rather than geographic or vertical expansion.
NoRedInk firmographics
Firmographics- Name
- NoRedInk
- Legal name
- NoRedInk Corp.
- Website
- https://noredink.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- NoRedInk is a K-12 web-based adaptive learning platform serving US Grades 3-12 classrooms and approximately half of US school districts with personalized grammar, writing, and ELA instruction. It operates a freemium-to-district-Premium model anchored by an AI-powered essay grading assistant and integrated with Canvas, Clever, and Schoology.
- Ownership category
- akta.pro rank
NoRedInk industry classification
Industry- Product category
- K-12 Educational Technology
- NAICS
- Educational Support Services (611710), All Other Schools and Instruction (61169), Exam Preparation and Tutoring (611691)
- SIC
- Services-Prepackaged Software (7372), Services-Educational Services (8200)
- akta.pro primary industry
- Assistive Reading & Writing Tools (Text-to-Speech, Speech-to-Text, OCR, Dyslexia Support) (EDAFAKAA)
- akta.pro secondary industries
- AT for Reading, Writing & Learning (Literacy/Executive Function) Tools & Training (EDAKAIAC), Special Needs & Inclusive Learning Trade (Dyslexia, ADHD, ASD Supports) (EDAGAIAL)
Keywords
Where NoRedInk is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
NoRedInk business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- Freemium to Premium Subscription: NoRedInk offers a free tier for individual teachers and classrooms. Premium upgrades are available at the district level under separate agreement. The free tier provides access to core curriculum, exercises, and basic features, while Premium unlocks deeper reporting insights, 1,000+ skill exercises, 100+ texts, prompts, and lessons, guided practice for 10+ writing genres, standards-aligned progress reports, and professional development with LMS integrations.
- District-Level Premium Agreements: Premium is sold under separate agreement with schools or school districts, indicating multi-year contract relationships. Districts receive full access to writing curriculum, guided composition tools, professional development, and integrations with Canvas, Clever, and Schoology.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier for individual teachers and classrooms |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels7 records
NoRedInk product offering
Product offeringCore offering
NoRedInk is an AI-powered web-based writing and grammar learning platform for US Grades 3-12 classrooms. It delivers adaptive exercises, scaffolded essay writing, AI-powered essay grading and feedback, English-learner language supports, originality monitoring, and standards-aligned reporting (Common Core, TEKS, SOL, NWEA MAP, SAT, ACT, WIDA). The platform is sold as a freemium offering to individual teachers and as a district-level Premium subscription with professional development and LMS integrations.
Product overview
NoRedInk is a unified educational technology platform for writing instruction serving Grades 3-12. The core NoRedInk platform provides a comprehensive writing curriculum with adaptive exercises, writing activities, and diagnostic tools. The product portfolio includes NoRedInk Premium as the subscription tier unlocking advanced features (1,000+ skills, 10+ writing genres, comprehensive reporting), NoRedInk for Grades 3-5 as the elementary-specific module, the AI-Powered Grading Assistant for automated essay assessment, the Language Support Suite for English learners, and Originality Insights for academic integrity monitoring. These modules work together within the unified platform, with Premium serving as the access layer for the more advanced features.
Differentiator
Problem solved
Functional benefit
Products and services
- NoRedInk Core Platform
Quantifiable outcome
- Teachers who use NoRedInk's AI-powered Grading Assistant cut their grading time by 40% while students receive 5x more written feedback
- +2 more outcomes
Companies that use NoRedInk
Customer profileNamed customers5 records
Segments1 record
Ideal customer profiles2 records
NoRedInk technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability4 records
Feature11 records
NoRedInk partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- National Writing ProjectcoreNoRedInk and the National Writing Project partnered in April 2025 to inspire the next generation of writers in the Age of Generative AI. The partnership focuses on advancing writing instruction and supporting educators in leveraging AI tools ethically and effectively for student writing development.
- Canvas (by Instructure)coreNoRedInk Premium offers seamless integration with Canvas LMS, enabling district-wide deployment through existing LMS infrastructure and single sign-on authentication.
- ClevercoreNoRedInk Premium includes integration with Clever, providing single sign-on and roster sync for districts using Clever's educational identity platform.
- Schoology (by PowerSchool)coreNoRedInk Premium integrates with Schoology LMS, enabling seamless access for schools and districts already using PowerSchool's Schoology platform.
Scale indicators3 records
Recent moves6 records
Expansion highlights6 records
NoRedInk competitors and assessment
Company assessmentBroad incumbents
- Curriculum Associates (i-Ready): Publisher of i-Ready diagnostic and instruction platform serving K-12 ELA and math. Overlaps with NoRedInk on standards-aligned diagnostic reporting and district sales motion.
- Khan Academy: Major nonprofit EdTech platform offering free instructional content including grammar and writing. Khanmigo (its AI tutor) is a direct competitor to NoRedInk's AI Grading Assistant, though Khan Academy serves all subjects K-12 rather than specializing in ELA.
- IXL Learning: Subscription-based K-12 adaptive learning platform covering ELA, math, science, and social studies. Competes with NoRedInk in ELA skill-building for school districts with a similar standards-aligned, adaptive-exercise approach.
- Imagine Learning: Major K-12 EdTech provider with ELA, math, and English learner solutions. Competes with NoRedInk's Language Support Suite via its own EL program, targeting the same district procurement cycles.
Direct peers
- Newsela: K-12 literacy platform offering leveled reading and writing instruction with standards alignment and district sales motion. Closest comparable in terms of ELA specialization, US district focus, and adaptive content for Grades 3-12.
- CommonLit: Nonprofit ELA platform providing free reading and writing instruction with standards alignment for Grades 3-12. Direct competitor in K-12 ELA with overlapping freemium model and district Premium tier.
- Turnitin: Academic integrity and writing feedback platform widely used in K-12 and higher education. Direct overlap on essay feedback and originality checking (NoRedInk's Originality Insights competes with Turnitin's Similarity Report).
- Lexia Learning (Lexia Core5/PowerUp): Cambium-owned literacy instruction platform serving K-12 with adaptive reading and writing tools. Targets the same US school district buyers with similar standards-aligned, data-driven instructional approach.
Emerging players
- Grammarly: AI-powered writing assistance tool expanding into K-12 and enterprise. Competes with NoRedInk's AI Grading Assistant at the writing-feedback layer, though typically consumer/SMB focused rather than district sales.
Others
- PowerSchool (Schoology): Dominant K-12 SIS and LMS provider (Unified Classroom, Schoology). Partner and indirect competitor — its LMS distribution and own instructional tools could either expand or disintermediate NoRedInk's district access.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
NoRedInk social profiles
Digital presenceNoRedInk compliance and trust
Trust signalCompliance3 records
NoRedInk financial estimates
Financial estimateRevenue estimate
Valuation estimate
NoRedInk leadership team
Management profileNumber of profiles
Profiles11 records
NoRedInk funding detail
Funding detailFunding overview
Funding rounds4 records
Investors17 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
NoRedInk M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about NoRedInk
What does NoRedInk do?
NoRedInk is an AI-powered web-based writing and grammar learning platform for US Grades 3-12 classrooms. It delivers adaptive exercises, scaffolded essay writing, AI-powered essay grading and feedback, English-learner language supports, originality monitoring, and standards-aligned reporting (Common Core, TEKS, SOL, NWEA MAP, SAT, ACT, WIDA). The platform is sold as a freemium offering to individual teachers and as a district-level Premium subscription with professional development and LMS integrations.
Is NoRedInk a public or private company?
NoRedInk is a private company. It is classified as venture growth investor backed and is currently operating.
When was NoRedInk founded?
NoRedInk was founded in 2013. It employs 101 to 250 people.
Where is NoRedInk based?
NoRedInk is headquartered in San Francisco, United States, in the North America region.
How does NoRedInk make money?
Two revenue lines are on record. Freemium to Premium Subscription is the primary driver. The others are district-Level Premium Agreements.
Who are NoRedInk's main competitors?
Broad incumbents on record are Curriculum Associates (i-Ready), Khan Academy, IXL Learning and Imagine Learning. Direct peers are Newsela, CommonLit, Turnitin and Lexia Learning (Lexia Core5/PowerUp). Grammarly is listed as an emerging player. PowerSchool (Schoology) is listed as an others.
Does NoRedInk have an API?
No public API is recorded for NoRedInk.
What industry is NoRedInk in?
NoRedInk's product category is K-12 Educational Technology. Its primary akta.pro industry code is EDAFAKAA, Assistive Reading & Writing Tools (Text-to-Speech, Speech-to-Text, OCR, Dyslexia Support), with a secondary code of EDAKAIAC, AT for Reading, Writing & Learning (Literacy/Executive Function) Tools & Training. Its NAICS code is 611710 and its SIC code is 7372.