Cambium Learning Group
Cambium Learning Group is a United States education technology and services company serving learners from pre-kindergarten through adulthood.
Last updated August 25, 2026
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Overview
Cambium Learning Group is a Dallas-based education technology and services company focused on learning, assessment, intervention, and instructional-support products. Established in 2003, the company develops and operates a portfolio of education businesses serving students, educators, schools, districts, and other learning institutions. Its stated product scope spans computer software, digital platforms, assessment tools, instructional materials, and related hardware or services for learners ranging from pre-kindergarten through adult education. The company operates through several education brands and business units, including Learning A-Z, Lexia Learning, Voyager Sopris, ExploreLearning, Cambium Assessment, Kurzweil Education, and VKidz. Together, these businesses address areas such as literacy instruction, reading intervention, mathematics and science learning, accessibility and assistive technology, online coursework, and large-scale K-12 assessment. Rather than presenting a single consumer-facing product identity, Cambium functions primarily as a portfolio company and house of specialized education brands. Its customers and users include school systems, teachers, education administrators, students, and families. Cambium expanded through a series of acquisitions and combinations. It acquired Kurzweil Education, formerly known as Kurzweil Educational Systems, in 2005. In 2009, Cambium Learning and Voyager Sopris Learning, formerly Voyager Learning Company, merged under the Cambium Learning Group name. The company later purchased Class.com in 2011, acquired VKidz Holdings in 2018, and bought the K-12 assessment division of the American Institutes for Research in 2020. These transactions broadened Cambium's presence in online learning, assessment, accessibility, and instructional intervention. The company's portfolio also changed substantially in 2020 and 2021. Cambium acquired Rosetta Stone in an all-cash transaction announced in September 2020, but sold its Rosetta Stone shares to IXL Learning in February 2021. In October 2020, Cambium acquired Lexia, and Lexia was subsequently combined with Voyager Sopris to form Lexia Learning. This restructuring strengthened the company's concentration on literacy and reading solutions while separating the Rosetta Stone language-learning business from the portfolio. Cambium is a portfolio company of Veritas Capital, a New York-based private equity firm. In 2021, Blackstone contributed to a reported $2.15 billion financing involving Cambium Learning Group. The company experienced a chief executive transition in May 2022, when John Campbell retired after more than 18 years with the company and Ashley Anderson Zantop succeeded him. Cambium remains an active education technology and services group, with its businesses organized around specialized solutions for teaching, learning, assessment, and educational accessibility.
History
Cambium Learning Group was established in 2003 in Dallas, Texas, as an education technology and services company. Its business model developed around assembling specialized education businesses rather than marketing a single universal learning product. The company's activities have covered digital learning software, instructional resources, assessment, online coursework, literacy intervention, mathematics and science learning, and assistive technology for students with accessibility needs. A significant early expansion came in April 2005, when Cambium acquired Kurzweil Educational Systems, subsequently known as Kurzweil Education. The acquisition gave Cambium a presence in assistive learning technology and tools intended to support students with reading, writing, and other learning barriers. In December 2009, Cambium Learning and Voyager Sopris Learning, formerly Voyager Learning Company, merged under the Cambium Learning Group name. This combination broadened the group’s instructional and intervention portfolio and created a foundation for later development in literacy and specialized learning. Cambium continued to expand through targeted acquisitions. In 2011 it purchased Class.com for reported cash consideration of $4.5 million, adding an online education business. In December 2018, it acquired VKidz Holdings. The company then moved more deeply into assessment and large-scale educational measurement by acquiring the K-12 assessment division of the American Institutes for Research in January 2020. That business became associated with Cambium’s assessment operations and added capabilities serving schools and education systems. The year 2020 brought two major transactions. In September, Cambium acquired Rosetta Stone in an all-cash transaction valued at approximately $792 million on an equity-value basis. The deal temporarily added a major language-learning business to Cambium’s education portfolio. In October, the company acquired Lexia, a literacy-focused education technology business. The Lexia transaction complemented Cambium’s existing Voyager Sopris activities and reinforced the group’s focus on reading instruction and intervention. Cambium subsequently changed the composition of its portfolio. In February 2021 it sold its Rosetta Stone shares to IXL Learning. During 2021, Lexia was combined with Voyager Sopris to create Lexia Learning, bringing related literacy businesses together under a more unified identity. The same year, Blackstone contributed to financing reported at approximately $2.15 billion for Cambium Learning Group. Cambium is described as a portfolio company of Veritas Capital, a New York-based private equity firm. The company’s business units have included Learning A-Z, Lexia Learning, Voyager Sopris, ExploreLearning, Cambium Assessment, Kurzweil Education, and VKidz. Their combined scope covers classroom and supplemental learning, reading and literacy intervention, science and mathematics learning, online education, assessment, accessibility, and teacher support. The portfolio structure allows the group to serve different educational stages and institutional needs through specialized brands. In May 2022, chief executive John Campbell retired after more than 18 years with the company. Ashley Anderson Zantop succeeded him as CEO. Cambium remains an active education technology and services group, with its identity centered on providing specialized digital and instructional solutions to schools, educators, students, and other learners from pre-kindergarten through adulthood.
- 2022
CEO transition
[1]Ashley Anderson Zantop succeeded John Campbell as chief executive after Campbell's retirement.
- 2021
Portfolio realignment
[1]Cambium sold Rosetta Stone to IXL Learning and combined Lexia with Voyager Sopris to form Lexia Learning.
- 2020
Assessment and language-learning expansion
[1]Cambium acquired AIR's K-12 assessment division, Rosetta Stone, and Lexia.
- 2018
VKidz acquired
[1]Cambium acquired VKidz Holdings.
- 2009
Voyager Sopris combination
[1]Cambium and Voyager Sopris Learning merged under the Cambium Learning Group structure.
- 2005
Kurzweil Education acquired
[1]Cambium acquired Kurzweil Educational Systems, later known as Kurzweil Education.
- 2003
Company established
[1]Cambium Learning Group was established in Dallas, Texas.
Products and positioning
A portfolio-based education technology and services provider combining specialized brands in literacy, intervention, assessment, online learning, mathematics, science, and accessibility for schools and learners.
Literacy and classroom learning
Learning A-Z
Learning A-Z is a Cambium education brand associated with digital and printable instructional resources, especially in elementary literacy and classroom learning. Its materials are designed for teachers and students and support reading practice, differentiated instruction, and supplemental learning.
Literacy and reading intervention · 2021
Lexia Learning
Lexia Learning is Cambium's literacy-focused business, formed after Lexia was combined with Voyager Sopris. It provides technology and instructional approaches for reading development, literacy intervention, and support for learners who need additional or differentiated instruction.
Instructional intervention
Voyager Sopris
Voyager Sopris provides specialized instructional and intervention resources, particularly in literacy and related areas. Its activities became part of the broader Lexia Learning organization after the 2021 portfolio combination.
Mathematics and science learning
ExploreLearning
ExploreLearning is a Cambium business focused on digital learning experiences in mathematics and science. Its offerings are associated with interactive instruction and supplemental learning for students and educators.
Educational assessment · 2020
Cambium Assessment
Cambium Assessment provides K-12 assessment capabilities and related services for education systems. The business was strengthened by Cambium's acquisition of the American Institutes for Research K-12 assessment division in 2020.
Assistive education technology
Kurzweil Education
Kurzweil Education develops assistive and accessibility-oriented learning technology intended to help students engage with reading, writing, and instructional content. Cambium acquired the business in 2005.
Online education
Class.com
Class.com was an online education business acquired by Cambium in 2011. It expanded the company's presence in virtual and distance-learning services.
Language learning · 2020
Rosetta Stone
Rosetta Stone is a language-learning business that Cambium acquired in 2020 and sold to IXL Learning in 2021. It is therefore part of Cambium's acquisition and divestiture history rather than its current reported portfolio.
Brand decisions
2021
Sell Rosetta Stone to IXL LearningM&ABackground
After acquiring Rosetta Stone in 2020, Cambium realigned its portfolio.
Action taken
Cambium sold its Rosetta Stone shares to IXL Learning.
Aftermath
Rosetta Stone left Cambium's portfolio, while Cambium continued concentrating on its other education technology and services businesses.
2021
Create Lexia LearningStrategyBackground
Cambium sought to consolidate related literacy and reading-intervention capabilities.
Action taken
Lexia was combined with Voyager Sopris to create Lexia Learning.
Aftermath
The restructuring created a more unified literacy-focused business within Cambium's portfolio.
2020
Acquire Rosetta StoneM&ABackground
Cambium pursued expansion into language learning through the acquisition of Rosetta Stone.
Action taken
Cambium completed an all-cash acquisition with an equity valuation of approximately $792 million.
Aftermath
Cambium sold its Rosetta Stone shares to IXL Learning in February 2021.
Equity valuation. $792 million approximately (2020 acquisition)
2020
Acquire AIR's K-12 assessment divisionM&ABackground
Cambium expanded its assessment capabilities and institutional education-services portfolio.
Action taken
The company acquired the American Institutes for Research's K-12 assessment division.
Aftermath
The acquired operations became part of Cambium's assessment business.
2009
Merge with Voyager Sopris LearningM&ABackground
Cambium sought to broaden its education portfolio through a combination with Voyager Sopris Learning, formerly Voyager Learning Company.
Action taken
The companies merged under the newly formed Cambium Learning Group structure.
Aftermath
The combination created a broader platform for instructional, intervention, and learning products.
Recent events
Cambium agrees to acquire Rosetta Stone[2]
Reported:
Cambium Learning Group and Rosetta Stone announced that they had entered into a definitive agreement for Cambium to acquire Rosetta Stone in an all-cash transaction valued at approximately $792 million. The companies anticipated completing the transaction in the fourth quarter of 2020, subject to customary closing conditions.
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