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The World's Leading Online High School Ranked #3 in the USA
Welcome to Crimson Global Academy, the #1 program offering for the US Diploma and APs. Recently ranked the #3 best online high school in the US, CGA connects ambitious students with world-class teachers & university-recognized qualifications.
Fall 2023 enrollment now open!
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Study online with CGA
The CGA US Diploma is an online, project-based program that empowers students to take classroom concepts and expand on academic ideas to solve real-world problems and develop digital portfolios that capture their unique talents and vision of the world.
We pride ourselves on providing the perfect mix of project-based, career-focused courses and academic rigor. Students typically graduate with a comprehensive portfolio of project-based work as well as the completion of several AP exams, demonstrating both real-world accomplishment and robust academic achievement.
Our classrooms are engaging and global. Our graduates go on to attend some of the world's most competitive universities.
Course Catalog
CGA Top 3 Finalist World's Best School Prizes in Innovation!
We are proud to announce that Crimson Global Academy has been honoured as one of the Top 3 finalists for the renowned World's Best School Prizes in Innovation!
This recognition is a testament to our commitment to providing an exceptional educational experience that puts our students on the world stage.
US High School Diploma Curriculum
In every course, students work in an inquiry-based classroom with teachers and peers to expand their knowledge and transfer academic concepts across content areas. Exploring how academics and the world are interconnected gives education a new level of relevance. Throughout a student’s time enrolled in the US Diploma Program they will build portfolios that encourage reflection, and allow them to showcase their mastery of course material.
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Huffpost
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Financial Review
News.com.au
Forbes
BBC
Huffpost
NZ Herald
New York Times
Financial Review
News.com.au
Forbes
BBC
Huffpost
NZ Herald
New York Times
Financial Review
News.com.au
Forbes
BBC
Huffpost
NZ Herald
Top reasons why families choose Crimson Global Academy
Scholarly Instruction
Our classes are taught exclusively by registered trained teachers — not tutors.
Unparalleled Attention
With no more than 12 students per class, our classrooms allow students to receive individualized support from an experienced teacher.
Placement by Ability, Not Age
Students are placed into courses by their readiness and maturity, not solely by their age or grade level. CGA is designed for high-school-aged students but exceptions may be made for academically gifted learners.
Live, Real-Time Classes
Our synchronous classes are delivered live, in real-time. Students participate in small, discussion-based classrooms that are optimized for learning and engagement.
University Admissions Expertise
CGA is built on the foundations of Crimson Education, the world’s leading university admissions consultancy. Students get access to Crimson’s 2,000+ global network of college admissions experts, leading tutors, and extracurricular activities.
Diverse Peers
In a truly global classroom, diverse classmates, hailing from all over the world, bring unique perspectives that will challenge you to think bigger, and foster international friendships.
Flexible Schooling
Our 24/7 class timetable enables students to enroll from anywhere in the world and accommodates learners with significant out-of-class athletic and artistic pursuits.
Part-Time Enrollment
Students can enroll part-time in addition to their standard schooling.
CGA Accreditations
CGA is a registered online Cambridge International School, offering the International General Certificate of Secondary Education (IGCSE), and A Levels.
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1000+
STUDENTS
30+
COUNTRIES
85+
TEACHERS
Meet some of our CGA Students
Qualifications Recognized by Top International Institutions
Yale University
MIT
Stanford University
UCLA
The University of Auckland
Harvard University
The University of Sydney
Oxford University
Cambridge University
King's College London
The University of Melbourne
Yale University
MIT
Stanford University
UCLA
The University of Auckland
Harvard University
The University of Sydney
Oxford University
Cambridge University
King's College London
The University of Melbourne
Yale University
MIT
Stanford University
UCLA
The University of Auckland
Harvard University
The University of Sydney
Oxford University
Cambridge University
King's College London
The University of Melbourne
Yale University
MIT
Stanford University
UCLA
The University of Auckland
Harvard University
The University of Sydney
Oxford University
Cambridge University
King's College London
The University of Melbourne
Yale University
MIT
Stanford University
UCLA
The University of Auckland
Harvard University
The University of Sydney
Oxford University
Cambridge University
King's College London
The University of Melbourne
CGA is powered by Crimson Education, the world’s leading university admissions consultancy
Our students get access to Crimson’s 2,000+ global network of higher education consultants and 1,700+ extracurricular partnerships and activities.
Latest blog posts, videos & news
VIDEO
Crimson Global Academy, Top 3 Finalist World's Best School P...
CGA has been selected as a Top 3 #finalist for the World's Best School Prize in Innovation 2023! Crimson Global Academy is...
VIDEO
CGA Social Day Highlights
The first CGA Social Day was a fantastic event where students connected, shared inspiration, engaged in expert talks and i...
VIDEO
Learn, Connect, Achieve at CGA
Explore a global community of learners, expand your knowledge, and shape your future. Join us today at cga.school #CGAsch...
Frequently Asked Questions
What kind of student is a good fit for the program?
We offer international qualifications for ambitious students aged 12 to 18. Students who are driven, ready to accelerate their studies, and interested in applying what they learn in school to real-world problems.
Is the US diploma program accredited?
CGA is happy to share that our high school program will be fully accredited for grades 9 through 12 by the Western Association of Schools and Colleges.
What are the program dates?
New classes start in September, January, and June
- Term 1 - September to December
- Term 2 - January to May
- Term 3 - Summer from June to August
Advanced Placement (AP) courses start once per year and run from September to May.
What are the graduation requirements for a US Diploma?
Students have the option to earn a Standard Diploma (18 credits), an Accelerated Diploma (18 credits), or an Honors Diploma (24 credits). CGA students should have a personalized approach to their education. We can work with students to find the right diploma path to achieve their goals.
Students must earn a minimum of 18 credits to earn a US diploma. These are further broken down as follows:
- English (4 credits)
- Math & Computer Science (4 credits) including 1 credit of Algebra and 1 credit of Geometry
- Science & Engineering (3 credits) including 2 credits with a lab component
- Social Studies (3 credits)
- Electives (4 credits)
What do I get upon completion of the program?
After meeting all the requirements, students receive a graduation diploma from CGA, USA. This diploma is an internationally recognized credential that can be used to apply for top universities in the US and all over the world.
When can I start classes?
CGA, USA offers three terms. Students can start classes in September, January, or June. AP courses must be started in September as they run from September to May.
Can I earn the diploma at an accelerated pace?
A US Diploma is is an internationally recognized credential. CGA, USA can offer multiple pathways to earning a Diploma. The standard program is designed for 4 years, however at CGA we you can learn based on ability and maturity, not age. Upon discussions with your counselor, some students might be able to complete it in a shorter period of time.
Our Diploma Requirements have been designed to meet the Florida Department of Education requirements so that students receive a rigorous college‐prep, yet a balanced education while maintaining the flexibility to meet individual student goals for life after graduation. Student course plans can be adjusted to include more than 18 credits based on the students academic goals.
However, it is important to remember that the CGA, USA graduation requirements might not fulfill certain college entrance requirements. Students must work closely with the School Counselor to ensure they meet the college entrance requirements.
How do I find exam sites?
You do not need to find exam sites. A US Diploma does not require outside examination sites. Students show course competency through a variety of assignments, projects, and online assessments. Students who wish to sit for an AP exam to earn additional college credit will need to find local AP testing sites.
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