Adserballe & Knudsen Holding Aps

What Adserballe & Knudsen Holding Aps does

Adserballe & Knudsen A/S is a Danish construction contractor headquartered in Farum, north of Copenhagen, operating since 1962 within four service areas: renovation (helhedsplaner and energy renovations), new construction (welfare and residential buildings as both main and total contractor), timber/CLT construction, and in-house carpentry contracting. The company serves primarily Danish social housing associations (Boligselskabet Sjælland, fsb, AAB, Vridsløselille, Rødovre Almennyttige Boligselskab), municipalities (København, Frederiksberg, Hillerød, Rudersdal, Allerød), pension funds (PFA, ATP Ejendomme), and private developers (Ikano Bolig), with a strong track record of major renovation contracts ranging from 25M to 400M DKK.

The company has built proprietary expertise in Cross-Laminated Timber (CLT) construction, having delivered over 250 timber apartments since 2017 and developed multiple building systems including CLT-FLEX (with Boligselskabet Sjælland and Holmsgaard), Carpent (with Brav and Robot At Work for digital robot-fabricated timber elements), and the CLT Hybrid concept (with ABC Rådgivende Ingeniører, CLT Denmark, and DesignGroup Architects) launched in June 2026. Own-production capacity spans carpentry, plumbing/ventilation, and earthwork/concrete trades, enabling the company to capture margin on direct labor. The firm has earned DGNB Gold and Silver certifications and Swan-labeled project credentials, positioning it for tightening Danish and EU sustainability procurement requirements.

Revenue is generated almost entirely through project-based construction contracts, primarily in the Danish domestic market (Zealand/Copenhagen area). Reported revenue was 559M DKK in 2025 and 570M DKK in 2024, with an estimated 100-150 employees. In June 2026, the company became a subsidiary of Per Aarsleff Holding A/S (acquired from CG Jensen Holding for approximately 766-800M DKK as part of a five-company deal), continuing to operate independently under its own brand and CEO Michael Vestergaard Jacobsen. The acquisition provides access to broader group competencies and capital strength while the company maintains its relationship-led sales motion through competitive tendering and long-term framework agreements.

Name

Adserballe & Knudsen Holding Aps

Legal name

Adserballe & Knudsen A/S

Website

https://aogk.dk

Company type

Private

Founded year

1962

Operating status

Operating

Short description

Adserballe & Knudsen is a Danish construction contractor specializing in social housing renovation, new construction, and CLT timber building, serving housing associations, municipalities, pension funds, and private developers primarily in the Copenhagen/Zealand area. It operates as a subsidiary of Per Aarsleff Holding A/S since June 2026.

Ownership category

akta.pro rank

Product category

Construction Contracting

NAICS

Nonresidential Building Construction (2362), Finish Carpentry Contractors (238350)

SIC

General Bldg Contractors - Residential Bldgs (1520), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Residential Affordable Housing Development & Construction (IMAFABAI)

akta.pro secondary industry

Joinery, Millwork & Casework Installation (Cabinetry, Built-Ins) (IMAFANAJ)

Keywords

• General contracting services
• Social housing renovation
• Timber construction
• CLT building systems
• Sustainable construction

Headquarters

HQ city

Farum

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Construction contracting (main and total contracts): The company operates as a general contractor and total contractor on construction projects, primarily in the Danish market. Revenue is generated through project-based contracts with housing associations, municipalities, public institutions, and private developers. Projects range from large renovation contracts (e.g., 400 million DKK for Ringparken, 357 million DKK for Friheden) to new construction and timber building projects. Revenue is primarily project-based and non-recurring per contract.
2. Carpentry and specialized trade contracting (own production): A significant portion of work is performed in own production (tømrer, VVS/ventilation, earthwork/concrete), providing margin on direct labor and materials. The company maintains in-house carpentry, plumbing, ventilation, and earthwork crews, with own-production ratios of 20-100% reported across projects.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Adserballe & Knudsen is a Danish construction contractor specializing in four core areas: (1) renovation of social housing including whole-plan (helhedsplan) projects, energy renovations, and building transformations; (2) new construction of welfare buildings, multi-family housing, and institutional facilities delivered as main contractor (hovedentreprise) and total contractor (totalentreprise); (3) timber construction with extensive CLT (Cross-Laminated Timber) expertise and proprietary building systems; and (4) in-house carpentry contracting (tømrerentrepriser). The company serves housing associations, municipalities, pension funds, and private developers primarily in the Copenhagen/Zealand region.

Product overview

Adserballe & Knudsen is a Danish construction company with four core service areas: Renovation (helhedsplaner, energy renovations, transformations), New Construction (nybyggeri as main and total contractor), Timber Construction (træbyggeri with extensive CLT expertise), and Carpentry Services (tømrerentrepriser). The company operates as a single unified construction service offering rather than a platform-plus-modules architecture. They specialize in complex building projects, particularly in the social housing sector, with a strategic focus on sustainable timber construction. Their offerings are delivered through their own workforce with significant in-house production capacity across carpentry and specialized trades.

Differentiator

Problem solved

Functional benefit

Products and services

• Renovation (Renovering) Comprehensive renovation services for social housing companies and housing associations, including whole-plan (helhedsplan) renovations, energy renovations, and building transformations. The company has extensive experience in the social housing sector with deep understanding of challenges in preservation-worthy but worn housing departments, including beboerkoordinering (resident coordination) expertise for occupied buildings.
• New Construction (Nybyggeri) New building construction performed as both main contractor (hovedentreprise) and total contractor (totalentreprise). The company serves the private market for projects commissioned by property developers, investors, and pension funds, typically involved from early project phases. Notable welfare building projects include Tandplejeklinik Hillerød, Blovstrød Børnehus, Mungo Park theater, and Plejecenter Sjælsø.
• Timber Construction (Træbyggeri) Strategic focus area involving extensive investment in CLT (Cross-Laminated Timber) construction. The company has developed multiple building systems within timber and hybrid construction covering various building typologies including row houses, apartment buildings, institutions, and office facilities. Has delivered over 300 CLT homes and one own office extension.
• Carpentry Services (Tømrerentrepriser) Major carpentry contracts performed in-house, covering comprehensive carpentry and joinery work on construction projects, leveraging the company's own carpentry production capacity.
• CLT Hybrid Concept A new design concept for multi-story hybrid construction that enables builders, consultants, and developers to develop, evaluate, and realize floor buildings with a more precise balance between economics, CO2 footprint, material choices, and constructability. Includes a digital user interface for real-time feedback on price, CO2, and material configurations (CLT, concrete, hollow floors, timber cassettes) for load-bearing walls, facade walls, floor decks, roof structures, shafts, cores, and ground floors.

Quantifiable outcome

• Over 250 timber apartments delivered via CLT construction since 2017
• +3 more outcomes

Named customers15 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Per Aarsleff Holding A/ScoreStrategic or Co-development Partner · 24 February 2026Per Aarsleff Holding A/S acquired 100% of Adserballe & Knudsen A/S (along with CG Jensen A/S, CG Jensen Forsyning A/S, CG Jensen Ejendomme A/S, and Ryttermarken ApS) for approximately DKK 800 million as part of a total 766 million DKK deal. The acquisition received regulatory approval from competition authorities in May/June 2026. Adserballe & Knudsen continues as an independent company with its own brand and management, contributing competencies in timber construction, transformations, and renovations to the Aarsleff group. The parent company provides capital strength, broader competencies, and cross-selling opportunities within the group.

Scale indicators5 records

Recent moves6 records

Direct peers

• KPC A/S: Danish contractor with similar mid-market positioning, active in renovation and new-build across housing associations and private developers. Comparable in project scale, customer mix, and focus on the Greater Copenhagen and Zealand region.
• Jorton A/S: Danish general contractor with similar revenue scale and project mix covering renovation, new construction, and carpentry contracts across Jutland and the islands. Comparable in customer segments (housing associations and municipalities) and project-based delivery model.
• MT Højgaard Holding A/S: One of Denmark's largest general contractors, MT Højgaard operates across building, civil engineering, and renovation with substantially greater scale than A&K. Comparable in serving Danish housing associations and public-sector clients on large renovation and new-build projects.
• Hoffmann A/S: Danish contractor specializing in residential and commercial construction, including renovation and new-build projects for housing associations and developers. Comparable in project size, customer base, and geographic focus on the Danish market.
• Enemærke & Petersen A/S: Danish mid-sized contractor specializing in renovation, new construction, and service for social housing associations and private clients. Directly comparable to A&K in segment focus (almene boliger) and project size range.
• CG Jensen A/S: CG Jensen was A&K's sister company under CG Jensen Holding until both were sold together to Per Aarsleff Holding in June 2026. A major Danish general contractor with overlapping competencies in ground engineering, concrete, and infrastructure, CG Jensen is the closest comparable in business model and ownership history.

Broad incumbents

• Skanska AB: International construction group with significant Danish residential and commercial operations, including sustainability-focused projects. Comparable as a broad incumbent in the Danish construction market with overlapping sustainability credentials and customer segments.
• NCC AB: Major Nordic construction group with significant Danish operations across building, infrastructure, and property development. Comparable in serving the same housing association and municipal clients but at materially larger scale and broader scope.
• Per Aarsleff Holding A/S: Adserballe & Knudsen's parent company since June 2026, Per Aarsleff is a major Danish infrastructure and contracting group. The parent now owns A&K as an independent subsidiary with its own brand and management within the Aarsleff-koncernen portfolio.

Others

• Stora Enso Oyj: Major European CLT (Cross-Laminated Timber) manufacturer and supplier, providing a key input for A&K's timber construction programs. Relevant as a strategic upstream partner and ecosystem participant rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCT751Xar9DTJ4olvIK0WOgA/videos
• LinkedInlinkedin.com/company/adserballe-&-knudsen-a-s

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Adserballe & Knudsen Holding Aps