Kastellet skole

What Kastellet skole does

Kastellet skole is a public primary and lower secondary school (grades 1-10) located in the Nordstrand/Bekkelaget area of Oslo, Norway, serving approximately 650 students. Established in autumn 2004 in a building that resulted from an architectural competition, the school is operated by Oslo kommune (Oslo Municipality) through the Utdanningsetaten (Education Agency) as part of the Osloskolen system. The school operates under the Norwegian municipal catchment-area (nærskole) model, with enrollment tied to residential address. It holds hjertesoneskole (heart zone school) status, focused on traffic safety and active travel, and is certified under the Miljøfyrtårn (Eco-Lighthouse) environmental management framework.

The school's product surface is educational rather than technological. Core programs include the Aktivitetsskolen (AKS) before- and after-school care program for grades 1-4 (with free core hours since August 2023), the Regnbuen special education department serving approximately 12 students with developmental disabilities across grades 1-10, and a portfolio of in-house pedagogical programs (Vurdering for læring, 1-4 Temadag, 5-10 Profil, Samhandling, Forsering acceleration in math/English). Technology is provided entirely by municipal and third-party platforms — Skoleplattform Oslo (parent portal), Itslearning (LMS), Vigilo (attendance/scheduling), Skolemelding (messaging), and OneNote — with grade-tiered internet content filtering. Partnerships with Nordstrand kulturskole (music), Nordstrand sjakklubb (chess), Nordstrand turnforening (gymnastics), and Bekkelaget skolekorps (band) extend the AKS activity offering.

The business model is non-commercial. Basic education is funded by Oslo kommune through per-student allocations; revenue is not publicly disclosed and the firmographic employee count (22) appears to exclude municipal teachers. AKS fees are income-regulated and set annually by Oslo Bystyre, with free core hours for grades 1-4 since August 2023. A marginal facility-rental stream (NOK 2,000-12,000 per school visit) and subsidized AKS pricing round out the model. There is no private ownership, no fundraising activity, and no commercial product line; the school is a government operating unit with no investors.

Name

Kastellet skole

Legal name

Kastellet skole

Website

https://kastellet.osloskolen.no

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Kastellet skole is a public municipal school in Oslo, Norway, serving approximately 650 students across grades 1-10, including the Regnbuen special education department and the Aktivitetsskolen after-school care program. It is operated by Oslo kommune through Utdanningsetaten and funded by the municipality.

Ownership category

akta.pro rank

Product category

Primary and Secondary Education

NAICS

Elementary and Secondary Schools (6111)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Public Elementary Schools (EDAJAAAB)

Keywords

• Public primary education
• Lower secondary education
• After-school care
• Special education services
• Extracurricular activities

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Others

Revenue model

1. Public Education Funding: Funded by Oslo kommune (Oslo Municipality) through the Utdanningsetaten (Education Agency). Education is free for students. The school also receives government funding for special education and programs.
2. Activity School (AKS) Fees: After-school care program (Aktivitetsskolen) with income-regulated fees. Free core hours for grades 1-4 as of August 2023, with additional paid hours for extended care.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Kastellet skole is a public 1-10 school (primary and lower secondary) in Oslo serving approximately 650 students in grades 1 through 10. The school delivers free compulsory education under the Norwegian national curriculum and also operates the Aktivitetsskolen (AKS) before- and after-school care program for grades 1-4, plus the Regnbuen special education department for students with developmental disabilities. Supplementary offerings include cross-curricular Profil courses, Temadag theme days, language electives, and partnership-based cultural and sports activities.

Product overview

Kastellet skole is a public 1-10 school in Oslo with approximately 650 students, established in 2004. The school's product portfolio consists primarily of educational programs and services rather than technology products. Core offerings include Aktivitetsskolen (AKS), a before and after-school care program for grades 1-4, and Regnbuen, a specialized department for students with developmental disabilities (grades 1-10). The school offers several distinctive educational programs including Vurdering for læring (Assessment for Learning), Profil (cross-curricular workshops for grades 5-10), Temadag (theme days for grades 1-4), Samhandling (collaboration focus), and Forsering (acceleration in math/English). Additional offerings include language subjects (Spanish, German, French, English specialization), elective subjects (programming, outdoor life, design, stage production), and partnerships with external providers for cultural activities.

Differentiator

Problem solved

Functional benefit

Brands

• Regnbuen: A special department at Kastellet skole serving approximately 12 students with varying degrees of developmental disabilities from grades 1-10. The department includes three classrooms, activity rooms, a common playroom, and a sensory room.
• Aktivitetsskolen (AKS)

Products and services

• Aktivitetsskolen (AKS)

Named customers1 record

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Nordstrand kulturskolecoreStrategic or Co-development PartnerNordstrand Kulturskole is a private culture school that has had a close collaboration with Kastellet skole for many years. Music teaching takes place in Kastellet skole's facilities, and many of the school's students attend culture school lessons while at AKS or after the school day ends. The school's teachers have college education with additional pedagogical education and many years of teaching experience. Leader: Laila Angell Myrseth.
• Nordstrand sjakklubb (Chess Club)minorStrategic or Co-development PartnerLong-term collaboration with Nordstrand chess club offering chess courses for students. One of several external instructors providing activities at AKS.
• Nordstrand turnforening (Gymnastics Association)minorStrategic or Co-development PartnerPreviously collaborated with Nordstrand gymnastics association for gymnastics courses for students.
• Bekkelaget skolekorps (School Band)minorStrategic or Co-development PartnerCollaborated with Bekkelaget school band for trumpet courses for grade 2 students.
• Ewa Trela (Dance Instructor)minorStrategic or Co-development PartnerPreviously collaborated for dance courses as part of AKS activities.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Holtet skole: Public Oslo school in the Nordstrand/Søndre Nordstrand area providing primary and lower-secondary instruction under the same Osloskolen governance and Skoleplattform Oslo infrastructure.
• Munkerud skole: Public primary/lower-secondary school in the Nordstrand area of Oslo. Shares the same municipal operating model, parent-communication stack, and AKS program structure as Kastellet.
• Bekkelaget skole: Adjacent municipal public school located in Bekkelaget, the same sub-area Kastellet borders. Comparable K–10 public school operating under Osloskolen with overlapping catchment demographics.
• Lambertseter skole: Municipal Oslo public school in the same southern Oslo corridor. Kastellet's Forsering acceleration program explicitly uses Lambertseter videregående skole's facilities, evidencing direct curricular linkage.
• Nordstrand skole: Sibling municipal primary/lower-secondary school in the same Oslo bydel (Nordstrand) under Osloskolen. Operates the same K–10 catchment-area model with comparable AKS and uses identical Skoleplattform Oslo / Vigilo stack.
• Ekeberg skole: Oslo kommune public school offering grades 1–10 with a similar municipal funding and catchment-area enrollment model, plus AKS after-school care.

Others

• Nordstrand kulturskole: Local municipal culture school that partners with Kastellet to deliver music instruction on-site. Not a direct education competitor, but a strategic partner embedded in Kastellet's extracurricular offering.

Broad incumbents

• Utdanningsdirektoratet (Udir): Norwegian Directorate for Education and Training — the national authority that sets K–12 standards and operates the Analysebrettet analytics dashboard that Kastellet uses for performance reporting.
• Oslo kommune Utdanningsetaten (Osloskolen): The municipal education agency that funds and governs Kastellet skole, alongside ~170 other Oslo public schools. Sets the curriculum framework, AKS pricing, and shared digital platforms (Skoleplattform Oslo, Vigilo).
• Aktivitetsskolen (Oslo kommune AKS program): The municipal-wide AKS after-school program that Kastellet operates as a local site; defines income-regulated pricing and free core hours across all Oslo schools.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/utekontaktenNordstrand
• LinkedInlinkedin.com/company/kastellet-skole

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Kastellet skole