Eduard Troelsgard Radgivende Ingeniorer

What Eduard Troelsgard Radgivende Ingeniorer does

Eduard Troelsgård Rådgivende Ingeniører A/S is a Danish consulting engineering firm founded in 1960 in Copenhagen, specializing in the structural engineering, HVAC, plumbing, and building-physics aspects of restoring and modernizing historic, listed, and culturally significant buildings. The firm operates with 12-15 employees from its headquarters at Flæsketorvet 75 in Copenhagen's Hvide Kødby district, serving government heritage agencies (Slots- og Kulturstyrelsen, Forsvarets Ejendomsstyrelsen, Københavns Kommune), Danish church parishes, cultural institutions (Davids Samling, Sagnlandet Lejre), and private foundations (Realdania By & Byg, A.P. Møller Fonden). Technical differentiation rests on six decades of accumulated expertise in traditional construction methods, proprietary methodology for masonry vault thrust-line calculations, and specialized church climate-control design — the firm has worked on more than 750 churches and medieval churches in Denmark and Skåne, plus four UNESCO World Heritage Sites (Roskilde Domkirke, Kronborg Slot, Kongernes Jelling, Parforce jagtlandskabet).

The firm's core services span construction/structural engineering, VVS (heating, ventilation, sanitation), building inspection and surveys, and Royal Building Inspectorate advisory work. Revenue is generated through project-based consulting fees determined by scope, complexity, and duration; projects range from smaller renovations (450K DKK fees) to flagship engagements such as Vikingekongehal in Sagnlandet Lejre (over 2M DKK engineering fees against a 75M DKK build sum) and the 150M DKK Dehns Palæ restoration. Distribution is entirely referral- and relationship-driven: the firm operates as both primary consultant and sub-consultant to Denmark's leading architecture practices including Wohlert Arkitekter, Fogh & Følner, Erik Møller Arkitekter, and Rønnow Arkitekter.

The firm is structured as a private aktieselskab (A/S) under CVR 28684525, governed by a partner ownership circle that has completed generational transitions (2011 Kurt Jacobsen, 2015 Svend Jakobsen, 2018 Arne Pedersen, 2022 Lars Kurt Nielsen all exiting the owner group), with Tom Hansen appointed Director in 2022. In 2024 the firm was re-designated Kongelig Bygningsingeniør (Royal Building Engineer), a regulatory credential that underpins advisory authority over Denmark's listed state-owned properties. The firm also contributes to industry knowledge through publications and external lecturing at the Royal Danish Academy's School of Architecture, reinforcing its position at the center of Danish heritage engineering practice.

Name

Eduard Troelsgard Radgivende Ingeniorer

Legal name

Eduard Troelsgård Rådgivende Ingeniører A/S

Website

https://et-ing.dk

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

11–50 employees

Short description

Eduard Troelsgård Rådgivende Ingeniører A/S is a Copenhagen-based consulting engineering firm (12-15 staff, founded 1960) specializing in the restoration and modernization of historic, listed, and heritage buildings — providing structural engineering, HVAC, and project management for castles, churches, manor houses, and cultural institutions across Denmark.

Ownership category

akta.pro rank

Product category

Heritage Building Engineering Services

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Renovation, Remodeling & Tenant Improvements (General Contracting) (IMAFAAAE)

akta.pro secondary industry

Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Heritage building restoration
• Structural engineering consulting
• Church restoration services
• Historical building modernization
• HVAC consulting services

Headquarters

HQ city

Copenhagen

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Engineering Consulting Services: The firm provides comprehensive consulting engineering services for construction projects, including construction design, project management, and supervision. Services cover structural engineering, HVAC, plumbing, drainage, and ventilation systems for both new construction and renovation of historical buildings.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Eduard Troelsgård is a consulting engineering firm that provides integrated structural, HVAC, plumbing, and ventilation engineering services for the restoration and modernization of historical, heritage-listed, and conservation-worthy buildings in Denmark. The firm specializes particularly in church restoration, royal palace and manor house projects, cultural institutions, and works as both primary consultant and sub-consultant to leading Danish architectural firms.

Product overview

Eduard Troelsgård Rådgivende Ingeniører A/S is a consulting engineering firm founded in 1960 that specializes in restoration and modernization of historical and preservation-worthy buildings. The firm operates as a single unified practice offering integrated engineering services including construction/structural engineering (Konstruktioner), HVAC and plumbing (VVS og ventilation), heating systems, sewage, and building inspections. The company has particular expertise in church restoration and heating installations, having worked on over 750 churches and medieval churches in Denmark and Skåne. They serve as consultants under the Royal Building Inspectorate for state-owned heritage properties and contribute to research through educational publications such as the textbook on medieval church constructions. The firm is appointed as Royal Building Engineers and provides consulting for Danish and foreign clients including government agencies, foundations, and private clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction and Structural Engineering (Konstruktioner)

Quantifiable outcome

• More than 750 churches and medieval churches restored in Denmark and Skåne
• +2 more outcomes

Named customers8 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

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and major.

• Teknologisk Institut, MurværkcoreStrategic or Co-development Partner · 1 January 2012Collaboration on the textbook 'Middelalderkirkens konstruktioner' (Medieval Church Constructions) published in 2012 with support from Kirkeministeriet (Ministry of Church Affairs). The book serves as a reference guide for restoration of Danish medieval churches and was authored by Jeppe Steen Andersen and Svend Jakobsen from the firm.
• Kunstakademiets ArkitektskolecoreStrategic or Co-development Partner · 1 January 2010Eduard Troelsgård served as external lecturer at the Royal Danish Academy of Fine Arts' School of Architecture from 1960s until 1995, teaching generations of architecture students in load-bearing structures, historical building technology, and restoration. Firm partner Jeppe Steen Andersen also taught there for 12 years.
• Inger og Johannes ExnercoreStrategic or Co-development Partner · 1 January 1960Long-standing collaboration from 1962 when Eduard Troelsgård joined Exners' office on Christianshavn. Collaboration continued for decades on church projects including Islev Kirke (1962-70), Hald Ege Kirke (1963-71), Trinitatis Kirke restoration (1963-82), and numerous other church and parish hall projects. The partnership was foundational to the firm's expertise in church construction and restoration.
• Johan Otto von SpreckelsencoreStrategic or Co-development Partner · 1 January 1960Partnership began with first project Sankt Nikolaj Kirke in Hvidovre (1960) and continued until von Spreckelsen's death in 1987. Collaborated on multiple church projects including Sankt Nikolaj Kirke in Esbjerg (1969), Vangede Kirke (1974), and Stavnholt Kirke in Farum (1982). Von Spreckelsen later gained fame for designing La Grand Arche in Paris.
• Bjørn NørgaardcoreStrategic or Co-development Partner · 1 January 1960Long-standing collaboration with artist and professor Bjørn Nørgaard on sculptural works including Nåleøjet (prize-winning sculpture in Ballerup), Tumlingerne (PFA building), Kærlighedens Ø in Ørestad, and Biologisk Mangfoldighed at LIFE/University of Copenhagen. Eduard Troelsgård provides engineering for the complex steel and granite constructions required for these artworks.
• Wohlert ArkitektermajorStrategic or Co-development Partner · 1 January 1960Long-standing collaboration on various projects including Margrethekirken in Valby (with Vilhelm Wohlert and Rolf Graae), Davids Samling museum restoration (1990-2009), Dehns Palæ restoration, and Regensen student residence projects.
• Fogh & Følner ArkitektermajorStrategic or Co-development Partner · 1 January 1960Ongoing collaboration on heritage projects including Vor Frelsers Kirke restoration, Holte Kirke Sognegård, Garderhøjfortet, Amaliehaven restoration, and various royal palace projects.
• Erik Møller ArkitektermajorStrategic or Co-development Partner · 1 January 1960Collaboration on major heritage projects including Christiansborg Slotskirke reconstruction (after 1992 fire), Christiansborg Slots Tårn renovation, and various royal building projects.
• Rønnow ArkitektermajorStrategic or Co-development Partner · 1 January 1960Recent collaboration on projects including Garderhøjfortet, BaneGaarden restoration, and various heritage projects.
• ERIK arkitektermajorStrategic or Co-development Partner · 1 January 1960Collaboration on projects including Egen Kirke restoration, Jacob Gade Kollegiet, Vartov, and Kronborg Slot projects.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Steensen Varming: Danish engineering consultancy specializing in building services, indoor climate, and energy for museums, churches, and heritage buildings. Most direct comparable peer because it directly competes in Danish heritage HVAC and building services engineering, with a similar client base of cultural institutions and churches.

Regional players

• Wiss, Janney, Elstner Associates: US-based engineering firm specializing in structural analysis, preservation, and restoration of historic and cultural buildings. Highly comparable offering in heritage structural engineering consulting, but operates primarily in the United States rather than competing in the Danish market.
• Price & Myers: UK structural engineering consultancy with a significant heritage portfolio including work on historic churches, museums, and listed buildings. Comparable because it offers similar heritage structural consulting with deep specialization, but primarily serves the UK market rather than Denmark.
• AKT II: UK structural and civil engineering consultancy with a strong heritage portfolio including cultural and civic buildings. Comparable consulting engineering services with heritage specialization, but primarily serves the UK market rather than the Danish heritage space.
• Simpson Gumpertz & Heger: US engineering firm with a heritage structural engineering practice covering historic buildings and cultural institutions. Comparable consulting engineering services for heritage structures, but the geographic focus is North America rather than Denmark/Scandinavia.

Broad incumbents

• Sweco: Nordic engineering, design, and consultancy firm with heritage and cultural environment projects across Scandinavia. Comparable because it operates in the same Danish and Nordic heritage engineering space with a broader bench, multidisciplinary capabilities, and ability to staff larger framework contracts.
• Arup: Global engineering consultancy with a strong heritage and conservation engineering practice including work on historic buildings, museums, and cultural landmarks worldwide. Comparable because it competes for high-profile heritage commissions at the same standard of craft but with global reach and significantly larger resources.
• Buro Happold: UK-headquartered global engineering consultancy with heritage and conservation engineering expertise across structural, MEP, and facade disciplines. Comparable because it performs specialist heritage engineering work on culturally significant buildings at similar quality tier to Eduard Troelsgård.
• Ramboll: Danish-headquartered global engineering, design, and consultancy firm with a Cultural Heritage practice that performs restoration, adaptive reuse, and structural engineering on historic buildings. Directly comparable because it competes for the same Danish heritage engineering contracts but operates at much larger scale with broader capabilities across structural, MEP, and project management.
• COWI: Major Danish engineering consultancy with heritage and conservation work within its buildings division. Comparable because it competes for similar Danish government, church, and foundation heritage commissions while offering broader resources, multidisciplinary teams, and international delivery capability.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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

Frequently asked questions about Eduard Troelsgard Radgivende Ingeniorer