Olaf Johansens eftf. AS
Olaf Johansens Eftf. AS is a 1946-founded Oslo sheet metal and ventilation contractor serving hospitals, universities, and government buildings through long-term framework agreements, with in-house workshop production and heritage-building certification.
- Company typePrivate
- Founded1946
- HeadquartersOslo, Norway
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Olaf Johansens eftf. AS does
Olaf Johansens Eftf. AS is a Norwegian private limited company (AS) founded in 1946 and headquartered at Professor Birkelands vei 24C in Oslo. The company delivers two integrated service lines: (1) Tak og blikk — exterior and interior sheet metal work including roofing in zinc and copper, facade cladding, roof replacement, custom flashing production, snow and ice removal, and heritage building renovation; and (2) Ventilasjon — complete ventilation services covering cooling, automation, duct and unit installation, climate control systems, heat pumps, central vacuum systems, and periodic service and measurement. Workshop production is anchored by programmable bending and channel folding machines capable of processing pieces up to 8 meters, producing custom flashings in stainless steel, copper, aluminum, zinc and nova steel plates.
The business operates a Master Business (Mesterbedrift) model with Sentral godkjenning Class 2 and 3, including a specific qualification for heritage building work, and F-gass certification Category I for cooling work. Revenue is generated primarily through long-duration framework agreements (rammeavtaler) with major public sector and institutional clients in Oslo — including Oslo University Hospital (Ullevål, Rikshospitalet, Radiumhospitalet, Aker, Gaustad, Dikemark), University of Oslo, Omsorgsbygg Oslo, Boligbygg, and Kirkelig fellesråd — supplemented by project-based work for commercial and private clients (e.g., Hotell Continental, Canadian Embassy, Gresvig). GTM motion is direct enterprise sales backed by Norwegian prequalification systems (Startbank) and trade association memberships (NHO, VBL), with minimal digital marketing. Multiple co-owners hold master craftsman certificates (mesterbrev) and the firm operates an approved apprenticeship program, with Hans Kristian Hystad as Chairman, Jarle Kristiansen as CEO, and Ivan Stridh and Espen Frisell leading ventilation and project management respectively.
Olaf Johansens eftf. AS firmographics
Firmographics- Name
- Olaf Johansens eftf. AS
- Legal name
- Olaf Johansens Eftf. AS
- Website
- https://olafjohansen.no
- Company type
- Private
- Founded year
- 1946
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Olaf Johansens Eftf. AS is a 1946-founded Oslo sheet metal and ventilation contractor serving hospitals, universities, and government buildings through long-term framework agreements, with in-house workshop production and heritage-building certification.
- Ownership category
- akta.pro rank
Olaf Johansens eftf. AS industry classification
Industry- Product category
- HVAC and Sheet Metal Contracting Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220), Architectural and Structural Metals Manufacturing (3323)
- SIC
- Sheet Metal Work (3444), Refrigeration & Service Industry Machinery (3580)
- akta.pro primary industry
- Sheet Metal & Flashing Works (Gutters, Copings, Edge Metal, Downspouts) (IMAFAMAE)
- akta.pro secondary industry
- Sheet Metal & Ductwork Contracting (IMAFALAH)
Keywords
Where Olaf Johansens eftf. AS is headquartered
LocationHeadquarters
- HQ city
- Oslo
- HQ country
- Norway
- HQ region
- Europe
Offices1 record
Markets served
Olaf Johansens eftf. AS business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Others, Marketing or Sales
Revenue model
- Sheet metal and roofing services: One-time project-based services for exterior sheet metal work including roofing in zinc and copper, facades, roof replacement and repairs. Revenue generated through individual project contracts and framework agreements.
- Ventilation and cooling services: Full-service ventilation offerings including installation, cooling systems, automation, service, and mounting of ventilation ducts and units. Includes channel mounting, complete climate systems, and heat pumps. Revenue from project work and ongoing service agreements.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Olaf Johansens eftf. AS product offering
Product offeringCore offering
Olaf Johansens Eftf. AS performs exterior and interior sheet metal work (taktekking i sink og kobber, fasader, takomlegging, reparasjoner, snø- og isfjerning) and complete ventilation services (kjøling, automatikk, service, montering av ventilasjonskanaler og aggregat, klimanlegg, varmepumper, sentralstøvsuger) for public, commercial, and residential clients. The company runs its own workshop producing custom flashings and fittings in multiple metals and delivers work under long-term framework agreements with major Oslo institutions including hospitals, universities, and municipal building owners.
Product overview
Olaf Johansens Eftf. AS is a Master craftsman business (Mesterbedrift) established in 1946, offering comprehensive ventilation and sheet metal work (blikkenslager) services in Oslo. The company provides two main service categories: (1) Tak og blikk - roof and sheet metal work including roofing in zinc and copper, facades, roof replacement/repairs, custom flashing production, snow/ice removal, and heat cables; (2) Ventilasjon - complete ventilation services including cooling, automation, maintenance, duct installation, climate control systems, heat pumps, and central vacuum systems. The company operates a large, well-equipped workshop with programmable folding and duct folding machines capable of handling pieces up to 8 meters. They offer framework agreements (rammeavtaler) for ongoing maintenance and service relationships with both public and private sector clients.
Differentiator
Problem solved
Functional benefit
Products and services
- Tak og blikk (Roof and sheet metal work) Exterior and interior sheet metal work including roofing (taktekking) in zinc and copper, facade cladding, roof replacement and repairs, and custom flashing production for public, commercial, and residential clients.
- Ventilasjon (Ventilation services) Complete ventilation services including cooling, automation, service, installation of ventilation ducts and units, project planning and design, complete climate systems, heat pumps, central vacuum systems, and commercial kitchen hoods for public, commercial, and residential clients.
- Snø- og isfjerning (Snow and ice removal) Snow and ice removal services for roofs including roof clearing (takrydding), removal of dangerous icicles, and sale and installation of snow guards and wall snow deflectors.
- Fasadebekledning (Facade cladding) Facade cladding and renovation services using various materials and designs, from partition walls on balconies to special architect-designed constructions and rehabilitation of old walls and larger industrial buildings.
- Rammeavtaler (Framework agreements) Long-term framework agreements for public and private sector clients covering ventilation services and/or sheet metal work, including ongoing service agreements. Active examples include Oslo University Hospital (since 2003/2011), University of Oslo (since 2015), Omsorgsbygg Oslo (since 2010), Boligbygg (since 2012), and Kirkelig fellesråd (since 2014).
- Verkstedproduksjon (Workshop custom metalwork production) Custom flashings, fittings, gutters, downspouts, ladder steps, and platforms produced in the company's Oslo workshop using programmable folding and duct folding machines for materials up to 8 meters in stainless steel, copper, aluminum, zinc, and nova steel plates. Also includes heat cables for gutters and downspouts.
Quantifiable outcome
- 15-year ongoing framework agreement with Ullevål Universitetssykehus
- +2 more outcomes
Companies that use Olaf Johansens eftf. AS
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles3 records
Olaf Johansens eftf. AS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Olaf Johansens eftf. AS partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor and core.
- StartbankminorMember of Startbank, a Norwegian prequalification system for construction and service companies facilitating public and private procurement.
- NHO (Næringslivets Hovedorganisasjon)minorMember of the Confederation of Norwegian Enterprise (NHO), Norway's largest organization for employers and businesses.
- VBL (Ventilasjon- og blikkenslagerbedriftenes landsforbund)coreMember of the National Association of Ventilation and Sheet Metal Companies. Ivan Stridh is a member of VVS-foreningen (HVAC association).
- OKBL (Oslo Kobber- og Blikkenslagerlaug)coreJarle Kristiansen serves on the board of OKBL (Oslo Copper and Sheet Metal Guild). Espen Frisell serves on the board of the training office for ventilation and sheet metal in Oslo.
- Opplæringskontoret for Ventilasjons- og blikkenslagerfaget – Oslo og omegncoreActive collaboration with the training office for ventilation and sheet metal trades. Company participates in apprenticeship programs and continuing education.
Scale indicators2 records
Recent moves6 records
Expansion highlights4 records
Olaf Johansens eftf. AS competitors and assessment
Company assessmentBroad incumbents
- Bravida Norge: Leading Nordic installation and service company covering electrical, HVAC, ventilation, and sheet metal work. Bids for the same Oslo public-sector framework agreements as Olaf Johansens and has substantially larger technical and financial capacity.
- Assemblin Norge: Nordic installation group with sheet metal and HVAC capabilities, operating across Norway. Competes for the same ventilation and sheet metal contracting work in Oslo that Olaf Johansens performs for hospitals, universities, and public housing.
- Caverion Norge: Major Nordic provider of HVAC, ventilation, cooling, and building services. Competes with Olaf Johansens on Oslo public-sector framework agreements (hospitals, universities, government) but operates at national scale across Norway and the Nordics with a much broader service portfolio.
- YIT Norge: Finnish/Nordic construction and building services group with HVAC and technical installation offerings. Larger, broader portfolio but overlaps with Olaf Johansens on ventilation and HVAC scope for Oslo public-sector projects.
- GK Norge: Norwegian HVAC and indoor climate specialist (now part of Per Aarsleff). Direct overlap with Olaf Johansens' ventilation, cooling, and duct installation services, particularly on public-sector and commercial projects in the Oslo region.
Others
- Skanska Norge: Major Nordic general contractor active in Oslo. While not a direct ventilation/sheet metal specialist, Skanska routinely bundles HVAC and sheet metal subcontracts into large public-sector builds, competing for the same downstream work Olaf Johansens pursues via its own framework agreements.
- Veidekke Entreprenør: Large Norwegian contractor with significant Oslo public-sector exposure including hospitals and educational buildings. Frequently sources ventilation and sheet metal subcontractors, positioning it as both a potential partner and competitor ecosystem for Olaf Johansens.
- NCC Norge: Major Nordic construction company active in Oslo commercial and public building projects. Indirectly comparable as a downstream general contractor that influences subcontracting opportunities available to specialty blikkenslager/ventilation firms like Olaf Johansens.
Market position
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Olaf Johansens eftf. AS social profiles
Digital presenceOlaf Johansens eftf. AS compliance and trust
Trust signalCompliance4 records
Olaf Johansens eftf. AS financial estimates
Financial estimateRevenue estimate
Valuation estimate
Olaf Johansens eftf. AS leadership team
Management profileNumber of profiles
Profiles5 records
Olaf Johansens eftf. AS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Olaf Johansens eftf. AS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Olaf Johansens eftf. AS
What does Olaf Johansens eftf. AS do?
Olaf Johansens Eftf. AS performs exterior and interior sheet metal work (taktekking i sink og kobber, fasader, takomlegging, reparasjoner, snø- og isfjerning) and complete ventilation services (kjøling, automatikk, service, montering av ventilasjonskanaler og aggregat, klimanlegg, varmepumper, sentralstøvsuger) for public, commercial, and residential clients. The company runs its own workshop producing custom flashings and fittings in multiple metals and delivers work under long-term framework agreements with major Oslo institutions including hospitals, universities, and municipal building owners.
Is Olaf Johansens eftf. AS a public or private company?
Olaf Johansens eftf. AS is a private company. It is classified as management employee owned and is currently operating.
When was Olaf Johansens eftf. AS founded?
Olaf Johansens eftf. AS was founded in 1946. It employs 11 to 50 people.
Where is Olaf Johansens eftf. AS based?
Olaf Johansens eftf. AS is headquartered in Oslo, Norway, in the Europe region.
How does Olaf Johansens eftf. AS make money?
Two revenue lines are on record. Sheet metal and roofing services are the primary driver. The others are ventilation and cooling services.
Who are Olaf Johansens eftf. AS's main competitors?
Broad incumbents on record are Bravida Norge, Assemblin Norge, Caverion Norge, YIT Norge and GK Norge. Others are Skanska Norge, Veidekke Entreprenør and NCC Norge.
Does Olaf Johansens eftf. AS have an API?
No public API is recorded for Olaf Johansens eftf. AS.
What industry is Olaf Johansens eftf. AS in?
Olaf Johansens eftf. AS's product category is HVAC and Sheet Metal Contracting Services. Its primary akta.pro industry code is IMAFAMAE, Sheet Metal & Flashing Works (Gutters, Copings, Edge Metal, Downspouts), with a secondary code of IMAFALAH, Sheet Metal & Ductwork Contracting. Its NAICS code is 238220 and its SIC code is 3444.