Cambium Learning Group

What Cambium Learning Group does

Cambium Learning Group is a private K-12 education technology company headquartered in Dallas, Texas, owned by Veritas Capital since its 2018 take-private. It operates a portfolio of seven wholly-owned brands — Cambium Assessment, Lexia Learning, Learning A-Z, Voyager Sopris Learning, ExploreLearning, Time4Learning, and Kurzweil Education — that collectively span the full K-12 continuum of online assessment, core and supplemental literacy curriculum, math/science simulations, intervention programs, English-language development, and educator professional learning. The company serves U.S. public and charter school districts (96% of all U.S. districts, 25+ states/territories through Cambium Assessment), homeschool families via Time4Learning's direct-to-consumer subscription, and educators in 170+ countries, reaching roughly 29 million students and 3 million teachers globally.

The technology base is a cloud-based education platform built on adaptive testing algorithms, machine learning-driven personalization, and psychometric modeling. Cambium Assessment operates what the company describes as the first peer-reviewed adaptive testing algorithm in the U.S., delivering more than 100.6 million tests annually with sub-second response times and serving 38% of U.S. students. Lexia's reading products (Core5, PowerUp) and Learning A-Z's Raz-Plus apply ML to personalize reading pathways; the WaLT writing platform is a patented storage-data-process system for grades 2-5. LETRS provides professional learning grounded in the Science of Reading, supported by a digital companion platform.

Revenue is generated primarily through subscription and multi-year district/site licenses procured via enterprise field sales and standard K-12 procurement channels, plus state education department contracts for assessment services. Secondary streams include Time4Learning's direct-to-consumer homeschool subscription and self-serve educator portals. The company was on track for bookings nearing $1 billion in 2021, representing 70%+ annual growth since the 2018 Veritas acquisition; explicit current revenue is not disclosed. Headcount has grown roughly 50% since July 2020 to ~2,400–2,500 employees under a remote-first operating model.

Name

Cambium Learning Group

Legal name

Cambium Learning Group, Inc.

Website

http://cambiumlearning.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Cambium Learning Group is a private K-12 edtech company operating seven wholly-owned brands that deliver assessment, literacy, math/science, intervention, and professional learning products to U.S. school districts, state education agencies, and homeschool families across 96% of U.S. districts and 170+ countries.

Ownership category

akta.pro rank

Product category

K-12 Education Technology Software

NAICS

Software Publishers (5132), Educational Support Services (611710), Exam Preparation and Tutoring (611691), All Other Schools and Instruction (61169)

SIC

Services-Prepackaged Software (7372), Services-Educational Services (8200)

akta.pro primary industry

Adaptive Learning & Personalized Instruction Software (EDAJAMAE)

akta.pro secondary industries

Formative & Benchmark Assessment Content (K–12) (EDAGADAH), Education Reporting, Dashboards & Business Intelligence (BI) (EDADAIAC), K–12 Core Curriculum Small-Group Tutoring Centers (Math/ELA/Science/Social Studies) (EDANAHAA)

Keywords

• K-12 education technology
• Literacy curriculum software
• Adaptive learning platforms
• Online assessment solutions
• Teacher professional development

Headquarters

HQ city

Dallas

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. Subscription / Bookings (District/School Licenses): Cambium's primary revenue stream comes from subscription bookings from school districts and state education departments. The company was on track to deliver bookings nearing $1 billion in 2021, representing 70%+ annual growth rate since becoming a private company in 2018. Products like Lexia Core5, Raz-Plus, LETRS, and Cambium Assessment operate on multi-year district/school subscription contracts.
2. Direct-to-Consumer Homeschool Curriculum (Time4Learning): Time4Learning serves homeschool families directly with a subscription curriculum product, representing a consumer-facing revenue stream separate from institutional B2B sales.
3. Assessment Testing Services: Cambium Assessment delivers secure, scalable online testing solutions for K-12 state standards, serving states and districts on a contractual basis with volume-based testing services.
4. Professional Learning Services (LETRS): LETRS professional learning programs generate revenue through educator enrollment, CEU/PLU credits, and district-wide licensing for teacher training in the Science of Reading.

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels7 records

Core offering

Cambium Learning Group provides K-12 educational software solutions across literacy, adaptive assessment, STEM simulation, English language development, teacher professional learning, homeschool curriculum, and assistive technology. Its seven subsidiary brands (Cambium Assessment, Lexia Learning, Learning A-Z, Voyager Sopris Learning, ExploreLearning, Time4Learning, Kurzweil Education) deliver products through subscription licenses to school districts, state education agencies, and individual homeschool families.

Differentiator

Problem solved

Functional benefit

Brands

• Lexia Core5 Reading: Literacy program for students providing personalized learning pathways
• Lexia PowerUp Literacy
• Lexia LETRS
• Lexia English Language Development
• Raz-Plus
• Reading A-Z
• Raz-Kids
• Writing A-Z
• Foundations A-Z
• ExploreLearning Gizmos
• ExploreLearning Reflex
• ExploreLearning Frax
• Science4Us
• LANGUAGE! Live
• Vmath
• Step Up to Writing
• Voyager Passport
• Sound Partners
• TransMath
• Headsprout
• Kurzweil 3000
• Science A-Z

Products and services

• Cambium Assessment Secure, scalable online testing and assessment platform for K-12 state standards. Delivers 100.6M+ tests annually serving 38% of U.S. students across 25+ states and territories; uses a proprietary adaptive testing algorithm (first peer-reviewed in the U.S.) with 1/10-second response time for 1.36M simultaneous testers. For state education departments and school districts.
• Lexia Core5 Reading Personalized literacy program for K-5 students providing adaptive reading instruction. Used in 25,000+ schools and credited with helping Utah improve from 22nd to 7th in grade 4 reading proficiency. For school districts and individual classrooms.
• Lexia PowerUp Literacy Literacy solution for middle school students who are not on grade level in reading; named top Literacy/Reading Solution at the EdTech Digest EdTech Awards 2026. For middle grades educators and districts.
• Lexia LETRS Professional learning program for teachers on the Science of Reading. 75% of East Meadow (NY) elementary teachers are LETRS graduates; statewide adoption in Alabama under the Alabama Literacy Act. Includes the LETRS Connect digital platform for literacy research, instructional best practices, expert-led sessions, modeling videos, and synchronous events.
• Lexia English Language Development English language development solution for Emergent Bilingual students. Massachusetts students using Lexia English outperformed peers by 15 points on WIDA ACCESS Assessments; adopted by nearly 2,000 schools and districts.
• Raz-Plus All-in-one literacy solution for K-5 combining leveled books, lesson resources, and interactive tools; integrated with NWEA MAP Growth assessment data for customized reading assignments. For teachers and districts serving PreK-5 students.
• Reading A-Z PreK-6 literacy resources including thousands of leveled books, lesson plans, and printable resources used by 12.8M students and 700K teachers across 170+ countries. Over 12 billion digital books have been read on Learning A-Z platforms.
• Raz-Kids Online reading platform providing interactive eBooks and quizzes for students, available through educator self-service portals. Complements Reading A-Z and Raz-Plus within the Learning A-Z portfolio.
• Foundations A-Z K-5 foundational reading skills solution built on the Science of Reading; delivers explicit, systematic instruction with embedded Professional Development Library and multimodal student activities. For K-5 classrooms.
• Writing A-Z K-5 writing instruction resources including the patented WaLT (Writing and Learning Together) digital writing platform for grades 2-5, which features a storage data process system with built-in graphic organizers, checklists, and reference texts.
• ExploreLearning Gizmos Interactive math and science simulations for grades 3-12 covering 400+ Gizmos across topics from fractions to genetics. Won Best Virtual Lab at the 2022 SIIA CODiE Awards. More than 63 million Gizmos were launched by students.
• ExploreLearning Reflex Adaptive, game-based math fact fluency solution; students answered 9.5 billion Reflex math facts. Won Best Gamification in Learning at the 2022 SIIA CODiE Awards and Gamified Digital Learning Solution of the Year at the 2024 EdTech Breakthrough Awards.
• ExploreLearning Frax Adaptive, game-based solution for learning fractions built on research-based instructional methods. Combined Frax + Reflex users showed 2X growth on NWEA MAP assessments; 99.7% of teachers report improvements in student learning after using Frax.
• Time4Learning Online PreK-12 curriculum subscription sold directly to homeschool families through e-commerce; recently expanded with Cinema Series courses for middle and high school covering core subjects and electives through story-driven visual instruction (94% student completion rate).
• Kurzweil 3000 Assistive technology platform supporting the reading, writing, and learning process for students with learning differences. For individual learners and educational institutions.
• LANGUAGE! Live Literacy intervention program for secondary students reading significantly below grade level. For school districts serving struggling adolescent readers.
• Vmath Math intervention solution for struggling K-8 students. For school districts and intervention programs.
• Step Up to Writing Writing instruction program for K-12 students; one of Voyager Sopris Learning's reading and writing solutions (new editions released August 2024).
• Voyager Passport Reading intervention program for struggling readers. For K-12 intervention programs and districts.
• Sound Partners Tutoring solution for early reading instruction. For districts implementing tutoring and reading intervention programs.
• TransMath Math intervention program for middle and high school students. For secondary intervention programs and districts.
• Headsprout Early reading instruction solution for emergent readers. For elementary classrooms and intervention programs.
• Science A-Z K-6 science curriculum and resources including lesson plans, printable and projectable books, and hands-on investigations. For elementary science classrooms.
• Science4Us Early science education solution for K-2 students covering earth, physical, life, and inquiry science. For elementary classrooms.

Quantifiable outcome

• Utah grew from 22nd to 7th in the nation in grade 4 reading proficiency using Lexia Core5 Reading
• +8 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered minor and core.

• Room to ReadminorStrategic or Co-development Partner · 8 September 2025Learning A-Z partnered with Room to Read through the Star Donation Challenge, enabling students to donate stars earned through reading activities to support global literacy initiatives. Students donated over 1.7 billion stars in 2024, providing meals, clean water, and school supplies to communities in need.
• SubjectminorStrategic or Co-development Partner · 11 July 2025Time4Learning announced a partnership with Subject to launch Cinema Series courses across its middle and high school curriculum, covering core subjects and electives through story-driven, short-form visual instruction. The Cinema Series reports a 94% student completion rate and a 13% average increase in student scores.
• UNICEF Kid PowerminorStrategic or Co-development Partner · 25 March 2023Learning A-Z partnered with UNICEF Kid Power for the UNICEF Kid Power Classroom Challenge, resulting in social and learning outcomes including 250,000+ meals donated and 1.6 million days of clean water delivered to communities globally. Students participating in the challenge read 3x more books.
• NWEA (Northwest Evaluation Association)coreTechnology or Integration · 12 July 2021Learning A-Z partnered with NWEA to integrate MAP Growth assessment data into the Raz-Plus literacy platform. This enables educators to leverage NWEA assessment results for customized reading assignments, connecting test data to next-step instructional resources. The integration supports both English and Spanish language learners.

Scale indicators18 records

Recent moves1 record

Direct peers

• IXL Learning: IXL Learning is a K-12 personalized learning platform with adaptive math, ELA, science, and social studies. Directly comparable to Cambium's Lexia and ExploreLearning brands; notably, IXL acquired Cambium's Rosetta Stone Languages Division in 2021, making it both a competitor and former business partner.
• Renaissance Learning: Renaissance provides K-12 assessment (Star) and accelerated reader/literacy products, directly overlapping with Cambium Assessment, Lexia Core5, and Raz-Plus. Renaissance's Star reading assessment and myON reader compete for the same district budgets and ELA intervention dollars as Cambium's portfolio.
• Curriculum Associates (i-Ready): Curriculum Associates delivers i-Ready adaptive diagnostic assessment and personalized instruction in reading and math. It is one of Cambium's closest direct competitors in K-12 adaptive learning, with similar district sales motion and overlapping product positioning in literacy and math intervention.
• Imagine Learning: Imagine Learning (formerly Imagine Learning, formerly Edmentum/PLATO) provides K-12 literacy, math, and assessment solutions including Imagine Learning English and Imagine Edgenuity. It competes directly with Cambium's Lexia English Language Development, Cambium Assessment, and Voyager Sopris intervention products.
• DreamBox Learning: DreamBox Learning is an adaptive K-8 math platform that competes directly with ExploreLearning Reflex and Frax. Both companies target district math adoption with personalized, gamified instruction and similar school/district subscription pricing models.
• Carnegie Learning: Carnegie Learning provides adaptive math (MATHia) and literacy (Carnegie Speech, QuickSmart) solutions for K-12. It is a direct competitor to Cambium's ExploreLearning math products and Lexia/Voyager Sopris literacy solutions, with similar district sales channels and adaptive learning technology.

Broad incumbents

• Houghton Mifflin Harcourt (HMH): HMH is a major K-12 educational content publisher offering core curriculum, intervention, and assessment. While broader than Cambium's focus, HMH's Into Reading, READ 180, and HMH Into Math products compete for the same district ELA and math dollars as Cambium's Lexia, Raz-Plus, and ExploreLearning brands.
• Khan Academy: Khan Academy provides free K-12 educational content and Khanmigo AI tutor. While not a direct paid competitor at the same scale, Khan Academy increasingly competes for district literacy and math budgets, especially with Sal Khan's policy influence and free pricing model pressuring Cambium's district value proposition.
• Scholastic Education: Scholastic Education provides literacy products including Scholastic Literacy Pro, Scholastic Magazines, and digital reading platforms. It competes for district ELA/reading budgets alongside Learning A-Z's Raz-Plus and Reading A-Z, and shares the same K-12 school distribution channels as Cambium.

Emerging players

• Newsela: Newsela provides differentiated reading content and formative assessment for K-12. It overlaps with Learning A-Z's Raz-Plus/Reading A-Z in the leveled reading content market and has expanded into assessment, creating partial competitive overlap with Cambium's literacy and assessment offerings.

Market position

Strengths5 records

Weaknesses4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/cambiumlearning
• Facebookfacebook.com/CambiumLearning
• LinkedInlinkedin.com/company/cambium-learning-group

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

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

M&A2 records

Investments

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

Frequently asked questions about Cambium Learning Group