What instair does

Instair is a Stockholm-based ventilation and air handling systems contractor founded in 2021, operating under the "projektnära" (project-close) methodology across Stockholm and the Mälardalen region. The company provides end-to-end air treatment services — including early-phase consulting (Fas 1), design and engineering (projektering), installation, and commissioning — for technically demanding building types including hospitals, offices, schools, residential developments, retail and food-court venues, and industrial/warehouse facilities. Notable specialized capabilities include hospital-grade ventilation with pressure management and 24/7 redundancy, and a structured digital reuse (återbruk) protocol for inventorying and re-deploying existing ventilation equipment in renovation projects, demonstrated at scale on Castellum's Kv Rotterdam 1 media house.

The company's business model is enterprise project-based contracting, predominantly delivered through collaborative contracting (samverkansentreprenad) with major Nordic general contractors including NCC, ByggDialog, Zengun, and Skanska, alongside direct engagements with property developers (Castellum, Stena Fastigheter, Fabege, Vectura Fastigheter, Intea) and public-sector clients (Region Västmanland, Region Sörmland, Kriminalvården, Jernhusen). Revenue is earned across multi-year project lifecycles (typically 1–4 years) through totalentreprenad contracts in AB, ABT, or samverkan forms, supplemented by early-phase technical advisory. Pricing is project-specific, set via competitive tender or collaborative negotiation; no consumer-facing pricing exists.

Instair is a wholly-owned subsidiary of Instalco AB, one of the Nordic region's leading installation groups comprising approximately 150 subsidiaries, over 6,000 employees, and approximately 14 billion SEK in annual revenue across Sweden, Norway, and Finland. Through this affiliation, Instair combines the engagement and agility of a smaller firm with the multi-discipline bundling capability of a Nordic market leader — frequently deploying alongside Instalco sister companies (Intec, Ohmegi, Rörgruppen, Sprinklerbolaget, Inmatiq, LG Contracting) on flagship projects such as Hagalund tågdepå, Västerås new emergency hospital, and Kriminalvårdens hus. The company has built a track record including 500,000+ sqm of office ventilation delivered over the past decade, seven major hospital projects in Mälardalen, and certifications including LEED Platinum and WELL (Forskaren), BREEAM Very Good (Hagalund), and BREEAM-SE Excellent (Separatorn 1).

Name

instair

Legal name

Instair AB

Website

https://instair.se

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Instair is a Stockholm-based ventilation and air handling contractor, founded in 2021, that designs, installs, and commissions HVAC systems for hospitals, offices, schools, residential, retail, and industrial buildings across Stockholm and Mälardalen. It operates as a project-close specialist under Instalco, delivering via collaborative contracting with major Nordic general contractors and public-sector clients.

Ownership category

akta.pro rank

Product category

Commercial HVAC & Ventilation Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Ventilation & Smoke Control Systems (Smoke Exhaust/Pressurization) (IMADANAI)

akta.pro secondary industries

Performance Contracting & Energy-as-a-Service (EaaS) for Buildings (BPABAGAN), Environmental Compliance, Monitoring & Field Services (Sampling/IAQ/Inspections) (IMAIAGAF)

Keywords

• Ventilation installation services
• HVAC contracting
• Air handling systems
• Ventilation design engineering
• Commercial ventilation contractor

Headquarters

HQ city

Solna

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel

Revenue model

1. Ventilation installation contracts: Instair generates revenue through project-based contracts for projektering (design/engineering), installation, and commissioning of complete air handling and ventilation systems. Contracts are structured as totalentreprenader in samverkan (collaborative contracting), AB, or ABT forms with general contractors and property developers. Revenue is earned over the duration of construction projects (typically 1–4 years).
2. Early-phase consulting and technical advisory (Fas 1): Instair provides technical consulting services in the early phases of construction projects — including energy calculations, climate and material data, cost estimates, and ventilation strategy development — before transitioning to installation contracts.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Instair is a project-close ventilation contractor delivering complete air handling system solutions across Stockholm and Mälardalen. The company provides projektering (design/engineering), installation, and commissioning of ventilation systems for schools, offices, hospitals, residential buildings, retail, and industrial facilities, often engaging in early-phase consulting (Fas 1) and delivering projects under collaborative contracting (samverkansentreprenad) with general contractors, property developers, and public sector clients.

Product overview

Instair is a project-near ventilation contractor offering specialized air handling solutions across multiple building sectors. The company operates as a unified service provider with core offerings including complete ventilation installations for schools, offices, hospitals, residential buildings, retail/restaurants, and industrial facilities. Services encompass the full project lifecycle from early-stage consultation (Fas 1), through engineering and design, to installation and commissioning. The company also provides sustainability-focused services including climate-optimized ventilation, energy-efficient solutions, and structured reuse of ventilation installations. All services are delivered through a project-near approach with emphasis on collaboration, transparency, and long-term operational reliability.

Differentiator

Problem solved

Functional benefit

Products and services

• Air Handling System Installations (Luftbehandlingsinstallationer) Complete air handling system installations including design, engineering, installation, and commissioning for various building types. Targeted at general contractors, property developers, and public sector clients in Stockholm and Mälardalen.
• Ventilation for Offices and Commercial Workplaces (Ventilation för kontor) Ventilation for modern office and commercial work environments delivering high comfort, stable air quality, energy-efficient and controllable operation, and low noise levels. Supports LEED, WELL, and BREEAM certification targets.
• Ventilation for Hospitals (Ventilation för sjukhus) Hospital ventilation services for operating rooms, ICUs, emergency departments, radiology, delivery suites, sterile supply, laboratories, and technical spaces in new hospital construction and renovations. Includes pressure management, redundancy, filtration levels, temperature control, and 24/7 operation.
• Ventilation for Schools, Preschools, and Sports Halls (Ventilation för skolor och idrottshallar) Ventilation for municipal schools, preschools, and sports halls with requirements for good air quality, stable sound levels, energy-efficient operation, and robust systems for high load.
• Ventilation for Residential Buildings (Ventilation för bostäder) Ventilation for newly produced apartments and multi-family buildings with FTX (heat recovery), exhaust, and hybrid systems. Requirements include energy efficiency, comfort, low noise, and long-term operational reliability.
• Ventilation for Retail, Commercial Spaces, and Food Courts (Ventilation för butiker, handel och restauranger) Ventilation for retail stores, commercial spaces, and food courts with complex simultaneous ventilation needs, high moisture loads, and energy-efficient operation across extended opening hours.
• Ventilation for Industrial and Warehouse Facilities (Ventilation för industri och lager) Ventilation for industrial halls, warehouses, workshops, production facilities, and logistics centers with large air volumes, varying heat and humidity loads, point extraction, pressure management, and round-the-clock reliability.
• Project-Close Ventilation Consulting (Projektnära ventilationsrådgivning) Early-stage project consultation (Fas 1) including technical analyses, system selection, energy assessments, cost and lifecycle analyses, and climate data. Targeted at general contractors, developers, and clients seeking ventilation strategy input before design finalization.
• Ventilation Reuse Services (Återbruk av ventilationsinstallationer) Structured reuse of ventilation installations including inventory, labeling, traceability, condition assessment, and on-site reuse for renovations. Targeted at property developers and renovation projects pursuing sustainability and certification goals.

Quantifiable outcome

• Over 500,000 sqm of ventilation installations delivered in office environments over the past 10 years.
• +5 more outcomes

Named customers13 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

15 partnerships are on record, tiered core and flagship.

• InteacoreOthers · 1 January 2025Intea is the property owner of Kriminalvårdens hus in Västerås (40,000 sqm detention facility). Five Instalco subsidiaries including Instair, Intec, Inmatiq, Sprinklerbolaget, and LG Contracting are engaged in the project alongside ByggDialog (general contractor) and Kriminalvården, in a total project value of approximately 260 million SEK for Instalco.
• NCCflagshipStrategic or Co-development Partner · 1 January 2024NCC is a leading Nordic construction company and one of Instair's most significant partners. Instair has been engaged by NCC on multiple flagship projects including Hagalund tågdepå (railway depot in Solna), Nova (office development in Järva Krog), Västerås new emergency hospital, and Femöringen residential project. Collaboration is primarily through samverkansentreprenad (collaborative contracting).
• CastellumcoreStrategic or Co-development Partner · 1 January 2024Castellum is a major Swedish property developer. Instair was selected as the ventilation specialist in the collaborative project Kv Rotterdam 1 (approximately 15,000 sqm media house for TV4), which has a strong sustainability and reuse focus. Instair delivered both advisory services and complete ventilation installation including control systems.
• Region VästmanlandflagshipOthers · 1 January 2024Region Västmanland is the regional healthcare authority commissioning the new emergency hospital in Västerås (approximately 75,000 sqm). Instair (along with Sprinklerbolaget) is contracted for ventilation and sprinkler installations valued at approximately 240 million SEK for Instalco. The project is delivered in collaborative contracting with NCC.
• JernhusencoreOthers · 1 January 2024Jernhusen is the Swedish state-owned railway property company that owns Hagalund tågdepå in Solna. NCC is building the modernization on Jernhusen's behalf, and Instair is engaged as the ventilation subcontractor as part of a four-company Instalco team (Intec, Ohmegi, Rörgruppen, Instair).
• Intec, Ohmegi, Rörgruppen, Sprinklerbolaget, Inmatiq, LG Contracting (Instalco sister companies)coreStrategic or Co-development Partner · 1 January 2024Instair collaborates with fellow Instalco subsidiaries on multi-discipline projects. Notable collaborations include: Intec (electrical), Ohmegi (plumbing/HVAC), Rörgruppen (plumbing), Sprinklerbolaget (sprinkler), Inmatiq, and LG Contracting — deployed together on large projects such as Hagalund tågdepå, Västerås new hospital, and Kriminalvårdens hus to offer bundled installation solutions.
• FabegecoreStrategic or Co-development Partner · 1 January 2023Fabege is a major property developer in Stockholm. Instair was engaged by Fabeges Separatorn 1 project (31,500 sqm, targeting BREEAM-SE Excellent) in collaboration with Skanska (general contractor) and tenant Alfa Laval. Instair delivered both early-phase advisory and full installation.
• RO-Gruppen ABcoreStrategic or Co-development Partner · 1 January 2023RO-Gruppen AB is a construction and consulting company. Instair partnered with RO-Gruppen on Kv Rotterdam 1 (Castellum's media house for TV4) and Matvärlden in Kungens Kurva (approximately 7,000 sqm retail plus 2,000 sqm food hall). RO-Gruppen served as general contractor with Instair providing ventilation advisory and installation.
• ZenguncoreStrategic or Co-development Partner · 1 January 2022Zengun is a Stockholm-based construction contractor and a key partner for Instair on several major projects including Fisksätra Centrum (commercial renovation) and Forskaren (office and lab in Hagastaden, 24,000 sqm). Projects are delivered in AB04 and ABT06 contracting forms.
• ByggDialogcoreStrategic or Co-development Partner · 1 January 2022ByggDialog is a construction company that has awarded Instair multiple ventilation contracts including Gunsta Skolan (9,900 sqm school in Uppsala), Stamvägen förskola, Tappsunds förskola, and Kriminalvårdens hus in Västerås. Projects are typically delivered in ABT06 in samverkan form.
• Stena FastighetercoreOthers · 1 January 2022Stena Fastigheter is the property developer for Fisksätra Centrum in Saltsjöbaden (8,000 sqm renovation and expansion), delivered with Zengun as contractor and Seveko VVS Konsult as consulting engineer.
• SkanskacoreStrategic or Co-development Partner · 1 January 2022Skanska is one of the largest construction companies in the Nordic region. Instair has worked with Skanska on multiple projects including Hagalund tågdepå (via NCC as main contractor for Jernhusen), Separatorn 1 (with Fabege), and other developments. Collaboration is through both direct engagement and as part of multi-company Instalco teams.
• InstalcocoreStrategic or Co-development Partner · 1 January 2021Instair is a subsidiary of Instalco, one of the Nordic region's leading installation groups within electrical, plumbing, ventilation, industry, and technical consulting. Instalco operates approximately 150 subsidiaries with 6,000+ employees across Sweden, Norway, and Finland and generates approximately 14 billion SEK in annual revenue. Instair benefits from Instalco's national breadth, quality systems, and internal cross-company collaboration, enabling multi-discipline project teams.
• Region SörmlandflagshipOthers · 1 January 2018Region Sörmland is the regional healthcare authority behind the 'Framtidens sjukhus' program — the expansion and renovation of three hospitals (Mälarsjukhuset, Kullbergska, Nyköpings lasarett). Instalco's largest project to date, with a total order value of approximately 1.7 billion SEK, involving approximately 15 Instalco subsidiaries including Instair.
• Vectura FastighetercoreStrategic or Co-development PartnerVectura Fastigheter is the property developer for Forskaren in Hagastaden (24,000 sqm office and lab building). The project was delivered in AB04 with Zengun as contractor. Forskaren achieved LEED Platinum and WELL certification.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Peab: One of Sweden's largest construction groups with integrated technical installation capabilities including HVAC and ventilation. Comparable broad incumbent that competes for technical scope on the same public-sector and developer-led projects (hospitals, schools, offices) in Sweden.
• YIT Corporation: Finnish construction and building services group with HVAC, ventilation, and technical installation capabilities across the Nordics and Baltics. Comparable broad incumbent peer serving similar residential, commercial, and infrastructure projects, with strong overlap in hospital and renovation segments.
• Bravida: One of the largest Nordic technical installation groups, providing HVAC/ventilation, electrical, and plumbing services across Sweden, Norway, Denmark, and Finland. Directly comparable to Instalco (and by extension to Instair's role within it) as a multi-discipline installation contractor serving construction and property clients in the same geographies.
• NCC (technical installations): One of the largest Nordic construction firms and a key customer of Instair, but also operates its own technical installation capabilities and competes for HVAC scope on large projects. Comparable as a broad incumbent that participates in similar non-residential and infrastructure projects in the same Stockholm-Mälardalen geography.
• Assemblin: Nordic installation group operating across Sweden, Norway, and Finland in HVAC, electrical, and plumbing. Directly comparable peer offering multi-trade technical installations including ventilation to construction and real estate clients, competing for the same general contractor relationships (NCC, Skanska, etc.) as Instair/Instalco.
• Caverion: Finnish-headquartered European provider of technical installations and facility services, with strong HVAC/ventilation capabilities and significant Nordic presence. Directly comparable peer delivering design, installation, and lifecycle services for ventilation and indoor climate solutions to commercial, healthcare, and industrial clients across the Nordics.
• Skanska (technical installations): Major Nordic and global construction firm with internal HVAC and ventilation installation capabilities, often acting as both general contractor and installer. Comparable as a broad incumbent overlapping with Instair on hospital, office, and infrastructure projects in the same geography.

Direct peers

• KGM (Kylma Gruppen Mälardalen): Swedish HVAC and refrigeration contractor active in the Mälardalen region, offering ventilation, cooling, and climate installations to commercial and industrial clients. Direct regional peer with overlapping service portfolio, customer base, and geographic footprint to Instair.
• Comfort System AB: Swedish HVAC and ventilation contractor serving the same construction, property, and public-sector segments as Instair. A direct mid-market peer offering similar project-based ventilation design, installation, and service to Swedish general contractors and developers.
• Q-Gruppen: Swedish technical installations group providing HVAC, ventilation, electrical, and energy services to construction and property clients. Direct mid-market peer offering similar ventilation installation services with comparable exposure to Swedish non-residential construction.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/instair

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

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

Frequently asked questions about instair