Spangenberg & Madsen Rådgivende Ingeniører

Denmark · owned by M3 HOLDING AF 2007 ApS (Denmark) · sogm.dk · 9 vendors

Spangenberg & Madsen is one of Denmark's oldest consulting engineering firms, founded in 1905, providing specialized technical advisory services across building construction, infrastructure, industry, and utilities. Their services span electrical engineering, HVAC, fire safety, security, sustainability, and project management. They serve clients including property owners, architects, contractors, and public institutions across Denmark and internationally, including Greenland.

Resilience scores

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Last updated 2026-09-13 · revision 3

9 direct vendors, 122 subvendors

Direct vendors by controlling owner country (sample)

Subvendors by controlling owner country (sample)

Migration Readiness: 0/10

Assessed by AI based on technology stack characteristics (cloud-native vs legacy, containerization, microservices), regulatory environment, data residency requirements, financial stability, and vendor lock-in risks. The score ranges from 0-10, where higher scores indicate better readiness for technology migration.

Spangenberg & Madsen's migration readiness is moderate, primarily due to the nature of its core engineering tools. While their company website utilizes the modern Next.js framework and they leverage SaaS solutions like HR-ON and Whistleblower Software, their fundamental engineering work relies heavily on Autodesk Revit, an industry-standard BIM modelling platform. The presence of an internally developed custom plugin for data extraction to Excel suggests a workflow that is deeply integrated with this desktop-centric application, posing a significant challenge for a seamless migration to a fully cloud-native, containerized, or microservices architecture without substantial re-platforming or re-engineering of their core processes. The lack of specified data residency requirements also presents an unknown variable that could complicate cloud migration efforts if strict rules apply to their project data. On the positive side, the company's strong and consistent financial growth indicates a robust capacity to fund a migration initiative should they choose to undertake one. Their regulatory environment is manageable, with compliance to GDPR and exemption from NIS2 obligations. While they engage with 10 services from vendors with diverse geographic HQs and owners, which generally suggests lower vendor lock-in, the specific dependency on Autodesk Revit for their primary engineering functions represents a form of vendor lock-in for their core business operations.

Compliance

4 in-scope frameworks identified; showing 3.

ISO 27001 (source) — Assessment Required

ISO 27001 is not mandatory but highly recommended for companies handling sensitive technical data and providing consulting services to critical infrastructure. Company works on sensitive projects including airports, energy systems, and government facilities. Risk is medium because lack of formal information security management system could expose company to cyber threats and limit business opportunities with security-conscious clients.

SOC 2 (source) — Assessment Required

While not mandatory, SOC2 compliance may be valuable for the company as they provide technical consulting services and likely handle sensitive client data and technical specifications. Many clients, especially larger organizations, may require SOC2 compliance from service providers. Risk is medium because lack of SOC2 could limit business opportunities with security-conscious clients.

NIS2 (source) — Assessment Required

Company operates in infrastructure and utilities sectors (forsyning) providing critical technical consulting for energy systems, transportation infrastructure, and public utilities. While they are not direct operators of essential services, their consulting work supports critical infrastructure. Company size (52 employees, established since 1905) likely meets medium enterprise thresholds. NIS2 applicability depends on specific classification of their consulting services and whether they qualify as Important Entities under the directive.

Evidence: https://www.sogm.dk/forsyning, https://www.sogm.dk/infrastruktur

Financials

Three-year financials

Financial Resilience Score: 6/10

Spangenberg & Madsen is a 120-year-old Danish consulting engineering firm with a stable operating history, strong blue-chip client relationships (Copenhagen Airports since 1993, Banedanmark, Kalaallit Airports), and a diversified service mix across building, infrastructure, industry, and utilities segments. The firm has demonstrated long-term resilience through multiple ownership transitions and operates from four Danish offices with renewed activity in Greenland. Its alignment with sustainability/ESG demand and stricter Danish building regulations provides a structural tailwind. However, exact financial figures (revenue, EBIT, equity) were not retrievable in the source research and would need to be obtained from CVR/virk.dk filings to confirm financial strength. Key risks include single-owner concentration following Michael Søgaard Rasmussen's sole ownership from late 2022, recent operational restructuring (Kolding office closure causing 25% employee turnover in 2023), integration risk from the 2024 acquisition of distressed competitor Dansk Energi Management A/S, and small absolute scale (~50–80 FTE) which limits buffer against project delays or client losses. The firm's exposure to the Danish construction cycle, which has been pressured by higher interest rates in 2023–2024, is also a concern. Overall, the firm appears to be a financially conservative, owner-led specialist with moderate resilience but limited public transparency.

Key strengths: 120-year operating history (founded 1905), one of the oldest DK consulting engineers, Long-term blue-chip client relationships (CPH airport since 1993, Banedanmark), Diversified service mix across building, infrastructure, industry, utilities, Geographic diversification with four DK offices plus renewed Greenland activity, Strategic 2024 acquisition of DEM adding energy/ESG advisory capabilities, Great Place to Work certified (2023), supporting talent retention, Tailwind from sustainability/ESG demand and BR18 energy requirements

Risk factors: Single-owner concentration / key-person risk (Michael Søgaard Rasmussen sole owner since 2022), 25% employee turnover in 2023 following Kolding office closure, Integration risk from acquiring previously-insolvent DEM in 2024, Cyclicality tied to Danish construction market pressured by interest rates, Small absolute scale (~50–80 FTE) limiting buffer against project/client losses, Limited public financial transparency (Class B abbreviated accounts), Client concentration risk with key accounts like CPH and Banedanmark

Revenue by geography

Revenue by product/service

Workforce by country

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