Rønslev

Name

Rønslev

Legal name

Rønslev

Website

https://ronslev.dk

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Engineering Services (54133), Electrical Contractors and Other Wiring Installation Contractors (23821), Plumbing, Heating, and Air-Conditioning Contractors (238220), Environmental Consulting Services (541620), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Engineering Services (8711), Electrical Work (1731), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF)

akta.pro secondary industries

Energy Systems & Power Engineering Consulting (BPAHAIAG), HVAC & Refrigeration Contracting (IMAFALAB), Electrical Contracting & Wiring (IMAFALAA), Fire Protection Systems Contracting (Sprinklers, Alarms, Suppression) (IMAFALAD), Infrastructure, Engineering & Public Works Technical Assistance (WASH/Transport/Energy) (BPADAEAF), Supply Chain Sustainability & Responsible Sourcing (SMETA, supplier ESG) (EUAHAJAE)

Keywords

• Engineering consulting services
• Structural engineering design
• DGNB sustainability certification
• BIM coordination services
• HVAC and electrical design

Headquarters

HQ city

Horsens

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Engineering Consulting Services: Project-based professional services for construction projects, including structural engineering, HVAC, electrical, fire safety, energy consulting, and sustainability assessment. Services are provided across all phases from initial design through construction supervision and final certification.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Rønslev provides multi-disciplinary engineering consulting for construction projects across Denmark, covering structural engineering, HVAC, electrical installations, fire safety, energy and indoor climate, infrastructure and drainage, BIM/IKT coordination, client advisory, and DGNB sustainability certification. Services are delivered in-house under unified project management, enabling single-point responsibility and seamless 3D-modeled coordination across all engineering disciplines from initial design through construction supervision and certification.

Product overview

Rønslev is a consulting engineering firm (rådgivende ingeniør) based in Horsens, Denmark, offering comprehensive engineering consulting services for construction projects. The firm operates as a unified service provider where experienced engineers and project managers lead projects from inception to completion. Their portfolio encompasses nine integrated engineering service areas: structural engineering (Konstruktioner), fire safety consulting (Brand og Certificeret Rådgiver), energy and indoor climate engineering, HVAC systems, electrical installations, infrastructure and drainage (Anlæg, Kloak og LAR), sustainability/DGNB certification, client advisory services, and general engineering consulting. These services are delivered as a comprehensive package under their project management, allowing them to serve as a single point of contact for all engineering needs across various building types including logistics, residential, sports facilities, offices, healthcare, and industrial projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Engineering Consulting (Ingeniørrådgivning) Comprehensive engineering consulting services covering all engineering disciplines including project management, construction consulting, and client advisory services for various building types. Targeted at developers, contractors, municipalities, and public institutions across Denmark.
• Structural Engineering (Konstruktioner) Design of load-bearing structures including timber, steel, concrete elements, cast-in-place concrete, cassette and modular construction systems. Targeted at construction projects across logistics, residential, healthcare, and industrial sectors.
• Fire Safety & Certified Advisor (Brand og Certificeret Rådgiver) Certified fire safety consulting including documentation, comparative analyses, and simulations covering fire classes BK1 through BK4, with certified fire consultant attestation. Targeted at construction projects requiring regulatory fire safety compliance.
• Energy and Indoor Climate (Energi og Indeklima) Energy calculations, thermal indoor climate simulations, natural ventilation analysis, daylight calculations, and acoustic assessments following Danish building legislation and occupational health rules. Targeted at developers and public-sector clients requiring compliant indoor environments.
• HVAC (VVS og Ventilation) Design and detailed engineering of heating, ventilation, and air conditioning (HVAC) systems, including building management systems (CTS). Targeted at construction projects requiring integrated mechanical systems.
• Electrical Installations (Elinstallationer) Design of electrical installations for buildings, covering power distribution, lighting, fire safety systems, and integration with other building systems. Targeted at construction projects across all building types.
• Infrastructure, Drainage and Rainwater Management (Anlæg, Kloak og LAR) Design of sewage systems, infrastructure (roads, paths, plazas), and local rainwater drainage solutions (LAR) including retention basins, infiltration systems, rain gardens, and landscape grading. Targeted at construction projects requiring sustainable site water management.
• Sustainability / DGNB Certification (Bæredygtighed / DGNB) DGNB-certified sustainability consulting, life cycle analysis (LCA), life cycle cost analysis (LCC), and DGNB auditor services for sustainable building certification. Targeted at developers and public-sector clients pursuing DGNB or EU Taxonomy certification.
• Client Advisory (Bygherrerådgivning) Client advisory services including assistance with tender processes for total contracts, best practice guidance, and expert consultation for building projects. Targeted at developers and public-sector clients navigating complex construction procurement.

Quantifiable outcome

• DGNB-certified projects including Gold, Silver, and Diamond levels achieved for multiple buildings
• +2 more outcomes

Named customers12 records

Segments9 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

16 partnerships are on record, tiered core, regular and client.

• AART ArchitectscoreStrategic or Co-development PartnerLong-standing partnership on numerous projects including Naturcenter Hindsgavl reconstruction and Horsens Samlingspunkt transformation. AART Architects provides architectural design while Rønslev delivers all engineering services including DGNB certification support.
• Dansk HalentreprisecoreStrategic or Co-development PartnerFrequent collaboration on construction projects including Zleep Hotel Horsens at Recharge City, Palsgaard High Bay Warehouse, and Company House IV. Rønslev serves as engineering consultant to this general contractor.
• MORTENSENcoreStrategic or Co-development PartnerDevelopment partner behind Recharge City project, Europe's first and largest EU Platinum certified truck rest area. Rønslev provides all engineering services for the development.
• Arkitektfirmaet Vallentin HauglandregularStrategic or Co-development PartnerPartnership on school and daycare projects including Veng School and Children's House for Skanderborg Municipality and Børnehuset Højvangen for Horsens Municipality.
• BASE ErhvervcoreStrategic or Co-development PartnerFrequent collaboration as main contractor on projects including Gedvedhallen, Silkeborg Forsyning, Harlev Idræts- og Kulturcenter, Horsens Kampsportcenter, and Nyt Sygehusvaskeri. Rønslev provides all engineering services.
• Skala ArkitekterregularStrategic or Co-development PartnerPartnership on healthcare and care projects including Møllehaven Brain Injury Center and Horsens Kampsportcenter, winning total consultancy competitions.
• LABAN ArkitektercoreStrategic or Co-development PartnerLong-standing partnership on multiple residential and hotel projects including Sølystvej (26 apartments in Silkeborg), Hotel Oasia extension, Kanalbyen (96 apartments in Fredericia), and Normal headquarters.
• Adsbøll EntreprisecoreStrategic or Co-development PartnerPartnership on residential projects including Flegmade (228 apartments in Vejle) and Bendixminde (118 social housing units in Odder), with DGNB certification targets.
• KPCregularStrategic or Co-development PartnerCollaboration on Company House projects in Silkeborg and other commercial developments as main contractor.
• NormalclientOthersClient for whom Rønslev delivered all engineering services for the new headquarters building in Skanderborg, including complex HVAC and indoor climate solutions.
• BigadancoreStrategic or Co-development PartnerCollaboration as main contractor on SBS Kliplev Biogas Plant project producing 38 million cubic meters of green gas annually. Rønslev provided structural documentation and foundation design.
• AK83 ArkitekterregularStrategic or Co-development PartnerPartnership on Nyt Sygehusvaskeri project for Region Sjælland, a competition-winning team also including BASE Erhverv and Wolters Consulting.
• Årstiderne ArkitekterregularStrategic or Co-development PartnerPartnership on Flegmade residential project (228 apartments in Vejle) with total contractor Adsbøll Entreprise.
• Erik ArkitekterregularStrategic or Co-development PartnerPartnership on Boliger i Videbæk project (38 sustainable social housing units) and Bendixminde project with DOMEA.
• FRIIS & MOLTKE ArkitekterregularStrategic or Co-development PartnerPartnership with Spangenberg & Madsen on Katrinebjergskolen renovation and extension project for Aarhus Municipality.
• AART ArchitectscoreStrategic or Co-development PartnerCollaboration on multiple projects including Fjordbrynet (two 15-story residential towers in Kolding for PFA Pension) and Melfarhus Hotel transformation.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Ramboll: Large Danish-origin engineering, architecture, and consulting firm with a deep Buildings division covering structural, HVAC, electrical, fire safety, and sustainability services across the Nordics. Directly competes with Rønslev on DGNB-certified and public-sector tenders in Denmark, but at vastly greater scale.
• NIRAS: Danish-headquartered engineering consultancy with strong buildings, infrastructure, and sustainability practices. Directly comparable to Rønslev in offering integrated engineering services for Danish construction projects, particularly in public and institutional segments.
• AFRY: Nordic engineering and design consultancy (formerly ÅF) with a sizable Danish building engineering practice. Competes for integrated multi-disciplinary Danish projects and brings deep sustainability credentials analogous to Rønslev's DGNB capabilities.
• Aarsleff: Danish civil engineering and construction group with a foundations/infrastructure and increasingly building engineering practice. Overlaps with Rønslev on infrastructure, drainage/LAR, and structural engineering scope from a broader contracting perspective.
• COWI: Major Danish engineering consultancy providing multi-disciplinary building services including structural, MEP, fire safety, and sustainability. Competes for the same Danish public and private tenders as Rønslev, particularly on large-scale infrastructure and institutional projects.
• Sweco: Nordic engineering and architectural consultancy with significant Danish presence (including Arkitema). Offers the same multi-disciplinary building engineering services as Rønslev, competing directly on DGNB-certified and sustainable building projects across Denmark.

Direct peers

• Wissenberg: Danish engineering consultancy offering integrated building services including structural, installations, and sustainability. Highly comparable in scale, service breadth, and Danish market focus to Rønslev.
• Emcon: Danish multi-disciplinary engineering consultancy providing structural, installations, and sustainability services. Direct peer in size and service portfolio, competing on the same building-engineering tenders in Denmark.
• Dissing+Weitling: Danish engineering consultancy with strong building services and structural capability. Similar size and scope to Rønslev, frequently competing for the same Danish commercial, residential, and public-sector consulting mandates.
• Søren Jensen Rådgivende Ingeniører: Danish multi-disciplinary engineering consultancy of comparable size to Rønslev, providing structural, HVAC, electrical, fire safety, and energy engineering. A close direct peer on the same types of Danish building tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCDyFHcXSOtNXEiWtlAeNRsQ
• LinkedInlinkedin.com/company/r-nslev-andersen
• Instagraminstagram.com/ronslev
• Facebookfacebook.com/ronslev

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Rønslev