CK-12 Competitors and Similar CompaniesClear all
CK-12's competitors and similar companies include American Management Association and GreatSchools.org.
 CK-12 CK-12 Foundation is an open educational resources (OER) non-profit organization providing access to education materials for students and teachers. |  American Management Association A world leader in professional development, advancing the skills of individuals to drive business success. | ||
Founding Date | Founding Date 2007 | Founding Date 1923 | Founding Date 1998 |
Type | Type Private | Type Private | Type Private |
Tags | |||
Locations | Locations Palo Alto, US HQ Bengaluru, IN | Locations Oakland, US HQ | |
Employees | Employees 1471% decrease | Employees 1,3801% increase | Employees 554% decrease |
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American Management Association
HQ
New York, US
Employees
1,380↑ 1% increase
A world leader in professional development, advancing the skills of individuals to drive business success.
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GreatSchools.org
HQ
Oakland, US
Employees
55↓ 4% decrease
We help millions of parents get a great education for their child.
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