What J. JENSEN does

J. Jensen is a Denmark-based demolition and environmental remediation company founded in 1986, operating across two legal entities — J. Jensen Nedrivning A/S (core demolition and remediation) and the wholly-owned J. Jensen Materieludlejning A/S (equipment rental). The company delivers a vertically integrated suite of services including selective and controlled demolition, hazardous-material remediation (asbestos, PCB, lead, chlorinated paraffins), construction site setup and management, equipment rental, transport/haulage, and sale of recycled building materials through a 1,000 m2 recycling hall in Lynge. It serves B2B customers across Denmark — primarily construction contractors, housing associations, and municipal/government clients, with additional industrial, pharmaceutical (Novo Nordisk, Lundbeck), real estate, and entertainment-sector accounts — via direct enterprise sales, public tender participation, and a smaller direct-to-customer rental channel.

The company's core technology assets include Stål Re-Jet, a proprietary PCB-removal method that uses high-velocity steel grit with cascade cleaning and magnetic separation enabling grit reuse up to 800 times, and J. Jensen DKS, a digital quality-assurance platform supporting tablet-based on-site documentation, photo capture, and waste reporting. It also developed an internal subcontractor-identification app for labor compliance. Operational scale is supported by two regional offices (Lynge covering Sjælland and Tjele covering Jutland), an in-house Volvo/Scania fleet with crane and hook-lift capability, and a container fleet.

Revenue mechanics are project-based: demolition, remediation, site management, transport, and recycling services are quoted per-project via tenders and direct proposals, while equipment and container rental provide recurring-style volume from smaller contractors and individuals. Reported 2024 gross profit was 94.6M DKK with a record 28.7M DKK pre-tax profit and 22M DKK net profit, supported by 17.9% return on assets and 45.4% equity ratio. The company is privately held by the founding Jensen family, holds ISO 9001/14001/45001 certifications plus asbestos and selective-demolition authorizations, and was the first in Denmark to execute Zig-Zag controlled demolition.

Name

J. JENSEN

Legal name

Nedrivningsaktieselskabet J. Jensen

Website

https://j-jensen.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

101–250 employees

Short description

J. Jensen is a Denmark-based, family-owned demolition and environmental remediation company founded in 1986, offering integrated demolition, asbestos/PCB remediation, site management, equipment rental, transport, and recycled-materials sales to construction firms, housing associations, municipalities, and industrial clients across Denmark.

Ownership category

akta.pro rank

Product category

Demolition and Environmental Remediation Services

NAICS

Remediation Services (562910), Hazardous Waste Treatment and Disposal (562211), Remediation and Other Waste Management Services (5629)

SIC

Hazardous Waste Management (4955), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Demolition & Selective Tear-Out for Hazardous Materials (BPALALAF)

akta.pro secondary industries

Decontamination & Demolition (Decommissioning, Industrial Facility Cleanup) (EUAIALAL), Construction & Demolition (C&D) Debris Recycling (IMAIAFAG), C&D Waste Collection, Hauling & Container Services (Roll-off/Dumpsters) (EUAIAHAA)

Keywords

• Demolition services
• Environmental remediation
• Construction site management
• Equipment rental
• Recycled building materials

Headquarters

HQ city

Lynge

HQ country

Denmark

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Demolition Services: Core demolition services for residential, commercial, and industrial buildings, including selective demolition and full demolition. Revenue generated through project-based contracts.
2. Environmental Remediation: Asbestos, PCB, lead, and chlorinated paraffins remediation services. Specialized hazardous material handling and disposal.
3. Construction Site Management: Setup and daily operation of construction sites, including site facilities, security, access control, and ongoing maintenance services.
4. Equipment Rental: Rental of construction equipment, machines, specialized tools, and containers to the construction industry. Machines available with or without operators.
5. Transport and Haulage Services: Transportation services including material delivery, crane operations, and container transport for construction waste and hazardous materials using the company's own fleet.
6. Recycling Sales: Sale of salvaged and recycled building materials from demolition projects through their 1000 m2 recycling hall in Lynge.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

J. Jensen provides comprehensive demolition and environmental remediation services for residential, commercial, and industrial buildings, including selective demolition, controlled demolition (e.g., Zig-Zag), asbestos/PCB/lead/chlorinated paraffin remediation, and full building removal. The company also offers construction site establishment and daily management, rental of construction equipment and containers, haulage services, and sale of recycled building materials through its Jensengenbrug division, achieving an 85.8% recycling and reuse rate.

Product overview

J. Jensen is Denmark's leading demolition company offering a comprehensive suite of construction and environmental services. The core offering centers on demolition services (Nedrivning) and environmental remediation (Miljøsanering), supplemented by construction site management (Byggepladsdrift), equipment rental (Materieludlejning), haulage/transport (Vognmandsforretning), and recycling sales (Genbrugssalg). The company also operates proprietary technologies including Stål Re-Jet for PCB removal and J. Jensen DKS for digital quality assurance. Services span from asbestos/PCB/lead remediation to selective demolition, waste sorting, and sale of recycled building materials, with operations across Denmark through offices in Lynge (Zealand) and Viborg (Jutland).

Differentiator

Problem solved

Functional benefit

Brands

• J. Jensen Genbrug: Recycling and upcycling division selling reused building materials from demolition projects. Located in Lynge with a 1000 m2 recycling hall.

Products and services

• Nedrivning (Demolition) Core demolition services for residential, commercial, and industrial buildings, including selective demolition and full demolition with focus on safety, environment, and recycling (85.8% reuse rate). Targeted at construction companies, housing associations, municipalities, and industrial clients.
• Miljøsanering (Environmental Remediation) Environmental remediation services including asbestos removal, PCB remediation, lead remediation, chlorinated paraffins handling, and building decontamination. Targeted at construction companies, housing associations, municipalities, industrial and pharmaceutical firms.
• Byggepladsdrift (Construction Site Management)
• Materieludlejning (Equipment Rental)
• Vognmandsforretning (Haulage and Transport)
• Genbrugssalg (Recycled Building Materials Sales)
• Stål Re-Jet (Steel Re-Jet) PCB Removal Service

Quantifiable outcome

• 85.8% recycling and reuse rate
• +3 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Dansk ErhvervcoreStrategic or Co-development Partner · 1 June 2025J. Jensen Nedrivning A/S became the first demolition company to join Dansk Erhverv, leaving the Demolition Section of Dansk Industri. The strategic shift aims to strengthen industry cohesion, combat illegal labor, and promote responsible and sustainable development. Dansk Erhverv is establishing a new network for the demolition industry focused on green transition, accountability, and innovation.

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• NCC AB: Large Nordic construction and property development company that performs demolition and remediation as part of larger projects. Represents cross-border competitive pressure, particularly in southern Sweden and the Øresund region.
• Per Aarsleff Holding A/S: Large Danish infrastructure and construction group (NASDAQ Copenhagen listed) with significant ground engineering and demolition capabilities. Competes on large demolition/infrastructure projects and brings capitalization and scale advantages J. Jensen lacks.

Direct peers

• Kingo Karlsen A/S: Danish demolition and environmental services firm with comparable offerings across demolition, hazardous material remediation, and site preparation. Operates as a direct competitor for both public tenders and private demolition contracts in Denmark.
• Jorton A/S: Danish demolition contractor providing demolition, environmental remediation, and site management services. Competes with J. Jensen for both private-sector and municipal projects in Denmark.
• Tscherning A/S: Major Danish demolition and environmental remediation contractor with a similar full-service offering (demolition, asbestos, PCB, site clearance). Directly comparable to J. Jensen in customer base, certifications, and service scope, making it the closest direct competitor in the Danish market.
• Bansen A/S: Danish demolition and environmental remediation company with offerings in demolition, asbestos/PCB/lead abatement, and C&D waste management. Directly comparable in service mix and customer segments.
• P. Olesen Nedrivning A/S: Established Danish demolition contractor providing similar demolition, asbestos remediation, and environmental services. Competes with J. Jensen on housing-association and municipal renovation projects across Denmark.

Emerging players

• Stena Recycling AB: Nordic recycling and waste management specialist with growing construction and demolition recycling capabilities. Increasingly overlapping with J. Jensen's recycling hall (Jensengenbrug) and C&D material recovery operations.

Regional players

• Veidekke ASA: Norwegian construction contractor with demolition and environmental services comparable to J. Jensen's offerings. Operates primarily in Norway and Sweden, providing a regional reference point for Nordic demolition economics.

Others

• MT Højgaard Holding A/S: Major Danish construction group that includes demolition and site preparation within its broader portfolio. Competes with J. Jensen on integrated demolition projects as part of larger construction engagements.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/jensennedrivning
• LinkedInlinkedin.com/company/j-jensen-a-s

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries1 record

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 J. JENSEN