Otk Klimatinstallationer Ab
OTK Klimatinstallationer AB is a Sweden-based ventilation contractor founded in 2011, providing design, installation, and service of FTX ventilation systems to construction firms and municipalities across the Mälardalen region. The Instalco subsidiary focuses on small and medium-sized projects valued at 1-75 million SEK.
- Company typePrivate
- Founded2011
- HeadquartersEnköping, Sweden
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Otk Klimatinstallationer Ab does
OTK Klimatinstallationer AB is a Sweden-based ventilation contracting firm founded in 2011 and headquartered in Enköping, with branch offices in Solna and Stockholm/Liljeholmen. The company specialises in the design, installation, and ongoing service of ventilation systems — including heat-recovery (FTX) units and demand-controlled ventilation — for residential, commercial, institutional, and public-sector buildings across the Mälardalen region (Stockholm, Uppsala, Västerås, Enköping, Nacka). Its customer roster includes Tier-1 Swedish general contractors (NCC, Skanska, Peab, Veidekke/Arcona, STRABAG), municipal buyers (Nacka Kommun), real-estate developers, and end-clients such as SEB and Svenskt Tenn.
The company's core technical stack rests on industry-standard CAD-based design tooling (Revit and Dalux 3D), FTX heat-recovery ventilation hardware, and an in-house projektering (design) and kalkyl (estimation) department established in 2017 with dedicated hires. Project execution spans both totalentreprenader (design-build) and utförandeentreprenader (performance) contract forms, with a deliberate strategic focus on small and medium-sized projects valued at 1-75 million SEK — a segment that Instalco reports accounts for over 80% of its group project revenues. Recent reference projects include the SEB headquarters at Arenastaden (~95,000 sqm BTA), Stationslunden (104 apartments plus 284 rental units), Sickla Skola, and the Rinkeby Allé 90-unit elderly-care facility.
OTK has been a wholly-owned subsidiary of Instalco AB since July 2014. Instalco is a Nordic installation conglomerate with approximately 150 subsidiaries, 6,000+ employees, and roughly 14 billion SEK in group revenue. OTK's go-to-market is sales-led and relationship-driven: it bids competitively on construction tenders, co-locates with general contractors via partnerships such as the "NCC Projektstudio" methodology, and increasingly participates in multi-trade Instalco consortium bids that bundle ventilation with piping, electrical, and controls. Revenue is generated primarily through project-based installation contracts supplemented by recurring service and maintenance agreements covering both OTK-installed and third-party systems.
Otk Klimatinstallationer Ab firmographics
Firmographics- Name
- Otk Klimatinstallationer Ab
- Legal name
- OTK Klimatinstallationer AB
- Website
- https://otkab.se
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- OTK Klimatinstallationer AB is a Sweden-based ventilation contractor founded in 2011, providing design, installation, and service of FTX ventilation systems to construction firms and municipalities across the Mälardalen region. The Instalco subsidiary focuses on small and medium-sized projects valued at 1-75 million SEK.
- Ownership category
- akta.pro rank
Otk Klimatinstallationer Ab industry classification
Industry- Product category
- Mechanical Contracting / HVAC Ventilation Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing, Heating, and Air-Conditioning Contractors (23822)
- akta.pro primary industry
- HVAC System Replacement & Change-Outs (HSAOAGAB)
- akta.pro secondary industry
- Commercial HVAC Maintenance Agreements & PM Programs (HSAOAHAJ)
Keywords
Where Otk Klimatinstallationer Ab is headquartered
LocationHeadquarters
- HQ city
- Enköping
- HQ country
- Sweden
- HQ region
- Europe
Offices3 records
Markets served
Otk Klimatinstallationer Ab business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Others
Revenue model
- Ventilationsentreprenader: Project-based installation contracts for ventilation systems in new construction and renovation projects. Includes both totalentreprenader (design-build) and utförandeentreprenader (contractor) models. Revenue from ventilation installations, FTX systems, and air handling units.
- Service och underhåll: Ongoing service contracts for ventilation systems, including regular maintenance, inspections, and emergency repairs. Can service both OTK-installed systems and existing systems from other providers.
- Totalentreprenader: Full design-build contracts where OTK handles project design, planning, and installation for complete ventilation solutions
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Small and medium projects (1-75 million SEK) |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Otk Klimatinstallationer Ab product offering
Product offeringCore offering
OTK Klimatinstallationer AB is a ventilation contractor that designs, installs, and services HVAC/ventilation systems for commercial, residential, institutional, and public buildings in the Mälardalen region of Sweden. Core services include ventilation installation under both utförandeentreprenad (performance contract) and totalentreprenad (design-build) models, ongoing service and maintenance, and CAD-based design (projektering) using Revit and Dalux 3D. The company focuses on small and medium-sized projects in the 1–75 million SEK range.
Product overview
OTK Klimatinstallationer AB offers a unified portfolio of ventilation services focused on the small and medium-sized project segment (projects between 1-75 million SEK). The core offering consists of three integrated services: Ventilation (installation of ventilation systems including FTX-aggregat with heat recovery), Service (maintenance and inspection), and Projektering (design using Revit and Dalux 3D). The company operates both as totalentreprenader (design-build) and utförandeentreprenader (performance-based), offering complete project execution from initial design through installation to ongoing service. With internal expertise across all phases—from in-house projecting and calculation to project management, assembly, and insulation—OTK delivers comprehensive ventilation solutions supported by the broader Instalco group's resources.
Differentiator
Problem solved
Functional benefit
Products and services
- Ventilation Installation (Ventilationsentreprenader)
- Ventilation Service & Maintenance
- Projektering (Ventilation Design & Engineering)
Quantifiable outcome
- Over 80% of Instalco's project revenues come from projects in 1-75 million SEK range
- +3 more outcomes
Companies that use Otk Klimatinstallationer Ab
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles3 records
Otk Klimatinstallationer Ab technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Otk Klimatinstallationer Ab partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and minor.
- InstalcocoreOTK joined Instalco group in July 2014 as a subsidiary. Instalco is a Nordic installation group with ~150 subsidiaries in Sweden, Norway, and Finland, generating ~14 billion SEK revenue with 6,000+ employees. Provides group synergies for complete installation packages across ventilation, controls, piping, and electrical.
- NCC Sverige ABcoreOngoing partnership since 2016 with NCC as ventilation subcontractor for Nacka municipality projects. Works in 'NCC Projektstudio' co-location methodology for integrated project delivery. Multiple school and preschool projects completed together including Sickla Skola.
- Timab, DALAB, 3EL, AutomationsbolagetminorFive Instalco subsidiaries collaborating on Hemköp Västerås project - Timab (totalentrepreneur), DALAB (VS), 3EL (electrical), OTK (ventilation), Automationsbolaget (controls). Cross-subsidiary collaboration for complete installation packages.
- VVS-Kraft, Timab, AutomationsbolagetminorFour Instalco subsidiaries collaborating on Rinkeby Allé elderly care project (90 units). OTK handles ventilation, VVS-Kraft handles piping, Timab handles cooling, Automationsbolaget handles automation. Partnering model with all parties working integrated.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
Otk Klimatinstallationer Ab competitors and assessment
Company assessmentDirect peers
- Caverion: Caverion is a Nordic/Baltic specialist in HVAC, cooling, ventilation and building automation, headquartered in Finland with significant Swedish operations. It targets many of the same building services, energy efficiency and indoor air quality opportunities as OTK.
- Bravida: Bravida is a leading Nordic provider of installation and technical services for HVAC, electrical and other building systems, with strong presence in Sweden. It competes for the same mid-sized ventilation, heating and indoor-climate contracts as OTK in the Stockholm and Mälardalen markets.
- YIT Oyj: YIT is a Finnish/Nordic construction and building services company providing HVAC, ventilation and technical building solutions. Its service portfolio and customer base (developers, municipalities, commercial property owners) closely overlap with OTK's offering in the region.
- Assemblin: Assemblin is one of the largest Nordic installation contractors with operations in Sweden, Norway and Finland, providing HVAC, electrical, plumbing and building services. Like OTK, it executes ventilation and indoor climate projects for commercial, residential and public-sector clients across the Nordics.
Regional players
- Comfort Systems USA: Comfort Systems USA is a US-based mechanical and HVAC services contractor executing commercial ventilation, heating and cooling installations. Its business model - multi-trade mechanical contracting targeting mid-sized commercial projects - closely parallels OTK's approach in a different geography.
Broad incumbents
- Instalco AB: Instalco is OTK's parent company and the broader Nordic multi-technical installation group (~150 subsidiaries, 6,200+ employees, ~14 BSEK revenue). As a group, Instalco provides the same HVAC and ventilation services plus electrical, plumbing and automation across a much wider geography.
- Equans (Engie Solutions): Equans is a major European multi-technical services provider offering HVAC, ventilation and energy efficiency solutions to commercial, public and industrial clients. It competes for many of the same Nordic and pan-European building services contracts as OTK's parent and broader peers.
- SPIE SA: SPIE is a leading European multi-technical services group providing HVAC, electrical and energy efficiency solutions to commercial and industrial buildings. Its technical services and building solutions business overlaps directly with OTK's mid-sized ventilation installation offering.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Otk Klimatinstallationer Ab social profiles
Digital presenceOtk Klimatinstallationer Ab compliance and trust
Trust signalCompliance1 record
Otk Klimatinstallationer Ab financial estimates
Financial estimateRevenue estimate
Valuation estimate
Otk Klimatinstallationer Ab leadership team
Management profileNumber of profiles
Profiles6 records
Otk Klimatinstallationer Ab funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Otk Klimatinstallationer Ab 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 Otk Klimatinstallationer Ab
What does Otk Klimatinstallationer Ab do?
OTK Klimatinstallationer AB is a ventilation contractor that designs, installs, and services HVAC/ventilation systems for commercial, residential, institutional, and public buildings in the Mälardalen region of Sweden. Core services include ventilation installation under both utförandeentreprenad (performance contract) and totalentreprenad (design-build) models, ongoing service and maintenance, and CAD-based design (projektering) using Revit and Dalux 3D. The company focuses on small and medium-sized projects in the 1–75 million SEK range.
Is Otk Klimatinstallationer Ab a public or private company?
Otk Klimatinstallationer Ab is a private company. It is classified as corporate owned and is currently operating.
When was Otk Klimatinstallationer Ab founded?
Otk Klimatinstallationer Ab was founded in 2011. It employs 11 to 50 people.
Where is Otk Klimatinstallationer Ab based?
Otk Klimatinstallationer Ab is headquartered in Enköping, Sweden, in the Europe region.
How does Otk Klimatinstallationer Ab make money?
Three revenue lines are on record. Ventilationsentreprenader is the primary driver. The others are service och underhåll and totalentreprenader.
Who are Otk Klimatinstallationer Ab's main competitors?
Direct peers on record are Caverion, Bravida, YIT Oyj and Assemblin. Comfort Systems USA is listed as a regional player. Broad incumbents are Instalco AB, Equans (Engie Solutions) and SPIE SA.
Does Otk Klimatinstallationer Ab have an API?
No public API is recorded for Otk Klimatinstallationer Ab.
What industry is Otk Klimatinstallationer Ab in?
Otk Klimatinstallationer Ab's product category is Mechanical Contracting / HVAC Ventilation Services. Its primary akta.pro industry code is HSAOAGAB, HVAC System Replacement & Change-Outs, with a secondary code of HSAOAHAJ, Commercial HVAC Maintenance Agreements & PM Programs. Its NAICS code is 238220.