Sisyobei Adventist Senior School (formerly called Sisyobei Adventist Secondary School) is a C3 Public Mixed Senior School that is physically located in Uasin Gishu County, Soy Sub County  in the Rift Valley Region of the  Republic of Kenya. This article provides all the details about Sisyobei Adventist Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

This Boarding Senior School forms part of the Uasin Gishu Education Network and has fully transitioned to a Senior School that offers Competency Based Education (CBE) Curriculum to Grade 10, 11 and 12 Learners.

Sisyobei Adventist Senior School School’s Basic Data and National Information.

School’s Old Name	Sisyobei Adventist Secondary School
School’s New Name	Sisyobei Adventist Senior School
Cluster	C3
Gender	Mixed
Accomodation Type	Boarding
Region	Rift Valley
County	Uasin Gishu
Sub County	Soy
UIC Code	25GN
KNEC Code	26576112
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Sisyobei Adventist Senior School operates as a fully Senior School offering the Competency Based Education (CBE/CBC) Curriculum. Students transition to this school from Junior School after sitting for the Kenya Junior School Education Assessment (KJSEA); which is a national assessment for Grade 9 learners under the Competency-Based Curriculum (CBC/ CBE). It assesses students in nine learning areas to evaluate their readiness to transition into Senior School.

Students who join Sisyobei Adventist Senior School at grade 10 specialize in any one of the following three main CBE pathways:

1. STEM (Science, Technology, Engineering, and Mathematics): Focuses on innovators and problem-solvers. It branches into Pure Sciences, Applied Sciences, and Technical Studies, leading to careers like medicine, engineering, and IT. 
2. Social Sciences: Designed for communicators and leaders. It includes tracks in Languages, Literature, Humanities, and Business Studies, preparing students for fields like law, journalism, and education. 
3. Arts & Sports Science: For creative minds and athletes. It features tracks in Visual Arts, Performing Arts, Music, and various sports disciplines, fostering careers in the creative and sports industries.

Sisyobei Adventist Senior School’s Background and History.

Sisyobei Adventist Senior School, historically known as Sisyobei Adventist Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Uasin Gishu county; where it is domiciled.

The school has grown over the years and is now a fully recognized  C3 Public Senior School. In January 2026, Sisyobei Adventist Senior School admitted the first grade 10 learners under the CBE Curriculum.

Location of Sisyobei Adventist Senior School.

Sisyobei Adventist Senior School’s exact physical location is in Uasin Gishu County, Soy in the Rift Valley Region of the  Republic of Kenya.

What to know about Rift Valley Region’s Senior Schools.

Rift Valley is the home of some of the best and highly competitive Senior Schools in Kenya. Sisyobei Adventist Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining  Sisyobei Adventist Senior School, confirm the pathways it offers.

Frequently Asked Questions About Sisyobei Adventist Senior School.

1. What is the UIC Code for Sisyobei Adventist Senior School?

The UIC Code for Sisyobei Adventist Senior School is 25GN.

2. Is Sisyobei Adventist Senior School a Boarding or Day School?

Sisyobei Adventist Senior School is a Boarding Senior School.

3. What CBE Grades are taught at Sisyobei Adventist Senior School?

Sisyobei Adventist Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.

4. What is the Knec Code for Sisyobei Adventist Senior School?

The Official Knec Code for Sisyobei Adventist Senior School is 26576112.

5. In Which County is Sisyobei Adventist Senior School Found?

Sisyobei Adventist Senior School is located in Uasin Gishu County.

6. Does Sisyobei Adventist Senior School admit Boys, Girls or Both?

Sisyobei Adventist Senior School is a Mixed Senior School.

7. What was Sisyobei Adventist Senior School’s Fomer Name under the 8-4-4 Education System?

Sisyobei Adventist Senior School was formerly called Sisyobei Adventist Secondary School.

8. What is Sisyobei Adventist Senior School’s New Cluster?

Sisyobei Adventist Senior School is now classified as a C3 Senior School.

9. Is there SNE Support for Learners at Sisyobei Adventist Senior School?

Sisyobei Adventist Senior School offers support for Regular learners. The school’s Disability Type is None.

10. Where is Sisyobei Adventist Senior School Located?

Sisyobei Adventist Senior School is found in Soy Subcounty of Uasin Gishu County; in the Rift Valley Region of the Republic of Kenya.

11. Is a Sisyobei Adventist Senior School Private or Public School?

Sisyobei Adventist Senior School is a Public School.

12. What CBE Pathways are offered at Senior School?

Senior schools offere 3 pathways; STEM, Social Sciences and Arts and Sports.