98% IGCSE Pass Rate 2022

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Globally recognized Pearson Edexcel curriculum.

Faith-Based Learning 2012

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Integrated Islamic values with modern education.

100% University Acceptance 2018

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Personalized career guidance for global success.

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img ABOUT US

Enter to Learn, Leave to Serve

Born from CGOS’s commitment to multi-curricular education, California International School was designed to offer the British Pearson Edexcel curriculum (iPrimary, IGCSE, and A-Levels) alongside Islamic values, filling a critical gap in faith-based international education.

  • 2022: Joined CGOS’s new education complex in California Estate, equipped with modern labs, libraries, and prayer facilities.
  • 2025: Preparing to graduate its first iPrimary cohort, marking a new chapter in academic achievement.
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Our Mission

To provide a safe, disciplined, and nurturing environment where students: Achieve academic excellence through the Pearson Edexcel curriculum. Develop moral integrity and Islamic faith. Grow into confident, service-oriented global citizens.

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Our Vision

A premier learning institution that cultivates future-ready leaders equipped with: Global competencies (IGCSE/IAL qualifications). Strong Islamic identity. Critical thinking and innovation.

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6 +

Years of Academic Excellence

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ACADEMICS THAT WE PROVIDE

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iPrimary

International Primary;– Year 4 to ear 6

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iLowerSecondary

International Lower Secondary; Year 7 to Year 9

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IGCSE

International GCSE; Year 10 and Year 11

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IAL

International Advanced Level; Year 12 and 13

School Principal

David Kowi

(+254) 207 90 7979

Mon - Sat : 07am - 05pm

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Solution that inspire progress

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Future-Focused Academics

Empowering learners with global curricula, 21st-century skills, and Islamic values — preparing them not just for exams, but for leadership in a rapidly changing world.

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Faith Meets Modernity

At CIS, we harmonize Islamic values with cutting-edge global education — nurturing morally grounded leaders for tomorrow’s world.

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Personalized Growth Pathways

Every learner at CIS follows a tailored academic and character development journey — guided by their strengths, interests, and ambitions. From early exploration to career-ready readiness, we support each child’s unique path to success.

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Cutting-Edge Infrastructure

Our campuses are equipped with modern labs, digital studios, smart classrooms, robotics hubs, and serene prayer spaces — designed to support both academic innovation and spiritual growth in a safe, future-ready environment.

STEP

IGCSE Pass Rate
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University Acceptance
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Active Students
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Years of Excellence
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Check our latest Achievements

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OSSD

🎓✨ A Day of Pride and Promise! ✨🎓

A Day of Pride and Promise: Kisomo International Collegiate Graduation in Partnership with California Group of Schools

Explore Milestone
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CGOS

✅ 2024 IGCSE Celebration Day

The energy was electric at the CGOS's Hall on February 10th, 2024, as the school came together to celebrate the academic stars of 2023.

ExploreMilestone
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Hear from our school community.

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Best School

CIS transformed my daughter into a confident learner. Within 2 years, her grades improved dramatically and she developed leadership skills through their mentorship program.

Aisha Mohamed

Parent of Year 9 Student
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Best School

The teachers here don't just teach - they inspire. Because of their support, I scored A* in IGCSE Physics and got accepted to my dream university in Canada.

Abdirahman Ali

Class of 2023, Engineering Student
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Best Company!

The Islamic values and critical thinking skills I gained at CIS gave me an edge in my business career. The career counseling program helped me choose the perfect university path.

Fatima Abdullahi

Alumni, Business Owner
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Best Company!

What makes CIS special is how we balance academic rigor with character building. Our small class sizes allow us to nurture each student's unique potential.

Edmont Karan

Senior Teacher at CIS
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Frequently Asked Questions

California International School offers the globally recognized Pearson Edexcel curriculum (iPrimary, IGCSE, and A-Levels). This British system: Is accepted by universities worldwide Emphasizes critical thinking over rote memorization Offers flexible subject combinations tailored to student strengths Includes Islamic Studies integrated with modern education Our students consistently achieve above global averages in IGCSE examinations.

Our Islamic environment includes: Daily prayers with separate musallah facilities Quran classes with hifz program options Islamic Studies as a core subject Character development through our "Faith in Action" program Halal nutrition in our cafeteria We balance modern education with traditional Islamic upbringing.

Our comprehensive university prep program includes: Dedicated Career Counselor starting from Year 10 University fairs with 50+ international institutions Personal statement workshops and application support Test preparation for SAT/IELTS/TOEFL Alumni network for mentorship opportunities 100% of our graduates have gained university admission since 2018.

We prioritize student safety and modern learning environments: 24/7 CCTV monitoring across campus Secure entry systems with biometric access First-aid trained staff and nurse station Modern labs (science, computer, robotics) Interactive smart boards in all classrooms Spacious library with 10,000+ resources

Our 4-step admissions process: Application: Submit forms with previous school reports Assessment: Grade-appropriate entrance tests Interview: Family meeting with school leadership Enrollment: Complete registration and orientation Key requirements: Minimum B average for secondary transfers English proficiency appropriate for grade level Commitment to Islamic values and school ethos We accept applications year-round based on availability.

Get Info

 

Our team is ready to guide you through every step. Reach out anytime.

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NEWS & ARTICLES

Celebrating Excellence: 2024 CGOS National Exam Champions

Celebrate the CGOS Graduation 2025 — a day of faith, achievement, and lifelong learning. Discover the highlights, speeches, and proud moments.

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🎓✨ PP2 Graduation Ceremony Highlights – California Integrated Academy ✨🎓

Celebrate the PP2 graduation at California Integrated Academy, California Group of Schools. See the joy, performances, and proud moments as our youngest learners move to Grade 1.

More Details

A Day of Pride and Promise: Graduation 2025

Celebrate the Class of 2025 at California Group of Schools! Relive the joy, Qur’an recitations, heartfelt speeches, and unforgettable graduation moments from our July 27th ceremony at the CGS Conference Hall.

More Details
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Need More Info? Just Ask.

Our team is ready to guide you through every step. Reach out anytime.

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Nairobi

California Square, Timboroa Street – Eastleigh

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Email Address

Response within minutes