Spektrum Bauphysik & Bauokologie Gmbh

What Spektrum Bauphysik & Bauokologie Gmbh does

Spektrum Bauphysik & Bau\u00f6kologie GmbH is a privately held Austrian engineering consultancy specializing in building physics (Bauphysik) and building ecology (Bau\u00f6kologie). The firm operates from its headquarters in Dornbirn, with a branch office in Innsbruck managed by self-employed partner ZT Dipl.-Ing. Alfred Oberhofer, and a German subsidiary, IfB SPEKTRUM Ingenieurb\u00fcro f\u00fcr Bauphysik & Bau\u00f6kologie GmbH, in N\u00fcrnberg managed by Dipl.-Ing. Michael Dauelsberg. Its service portfolio covers nine integrated lines: Thermische Bauphysik, Bauakustik/Schallschutz, Raumakustik, L\u00e4rmschutz, Bau\u00f6kologie, Messungen, Simulationen, Gutachten, and Geb\u00e4udezertifikate \u2014 delivered using PHPP energy-balance calculations, dynamic building and moisture simulation, daylight and 3D acoustic simulation, thermography, Blower-Door air-tightness testing, OI3/EI ecological assessment, and accredited certifications spanning KGA, klimaaktiv, TQB/\u00d6GNB, Passivhaus, EU GreenBuilding, LEED, and BREEAM.

The firm is led by Managing Director Karl Torghele, who has served as a court-certified expert witness (allgemein beeideter und gerichtlich zertifizierter Sachverst\u00e4ndiger) since 2001, joined by a second court-certified expert, Siegfried Lerchbaumer, since 2015. Approximately 18 named individuals work across the three offices, including technical project leaders, technical officers, ecological product managers, and three self-employed partners. Revenue is generated entirely through professional fee-for-service engagements; no product, software, or licensing revenue model exists, and no pricing is publicly disclosed.

Clients span public-sector municipalities (schools, kindergartens, community centres in Vorarlberg), property developers and construction companies (Projektart, ZIMA, Bauwerk G120, F25 Projektgesellschaft), institutional investors (LaSalle Investment Management with ACCUMULATA), and branded enterprises (Oberalp/Dynafit, BORA/WB Immobilien), with selective project work in Eastern Austria, Northern Italy, Liechtenstein, and Switzerland. The firm delivers 60\u201380 expert opinions annually for courts, insurance companies, and private clients. Its project record includes the Montforthaus Feldkirch (Staatspreis 2017), Schulen am See Hard (Staatspreis 2019), Bahnhofcity Feldkirch (klimaaktiv Gold 2022), Volksschule Altenstadt Feldkirch (klimaaktiv Gold 2023, Object of the Month 11/2024), and Schulen Hittisau (Staatspreis nomination 2024, Vorarlberger Holzbaupreis 2025), with international recognition via the FIABCI Prix d'Excellence Austria 2022, German Design Award, Opal Award, and Piranesi Award for the Peterhof Alpe Furx project.

Name

Spektrum Bauphysik & Bauokologie Gmbh

Legal name

SPEKTRUM Bauphysik & Bauökologie GmbH

Website

https://spektrum.co.at

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Spektrum is an Austrian engineering consultancy in building physics and building ecology, operating from Dornbirn, Innsbruck, and N\u00fcrnberg. It delivers thermal, acoustic, ecological, simulation, measurement, and certification services to municipalities, developers, institutional investors, and private clients across the DACH and Northern Italian region.

Ownership category

akta.pro rank

Product category

Building Physics & Building Ecology Consulting

NAICS

Engineering Services (541330), Environmental Consulting Services (54162), Building Inspection Services (54135)

SIC

Services-Engineering Services (8711), Services-Testing Laboratories (8734), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Testing, Adjusting & Balancing (TAB) & Performance Verification (BPABACAJ)

Keywords

• Building physics consulting
• Building ecology services
• Thermal performance analysis
• Building acoustic engineering
• Sustainable construction certification

Headquarters

HQ city

Dornbirn

HQ country

Austria

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Consulting Services (Bauphysik & Bauökologie): Fee-for-service engineering consultancy providing building physics and building ecology services including expert opinions, measurements, simulations, building certifications, and energy audits. Revenue is project-based and derived from a mix of public sector (municipalities, government), property developers, construction companies, and private clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Spektrum is an engineering consultancy (Ingenieurbüro für Technische Physik) delivering building physics and building ecology services. The firm provides expert assessments, on-site measurements, dynamic simulations, and building certification consulting across thermal physics, building/room acoustics, noise protection, and ecological material assessment. Services are delivered by qualified engineers and two court-certified expert witnesses (Sachverständige) from offices in Dornbirn, Innsbruck, and Nürnberg.

Product overview

Spektrum Bauphysik & Bauökologie GmbH is an engineering consultancy firm specializing in building physics and building ecology. The company offers a comprehensive portfolio of consulting services organized around core competencies: Thermische Bauphysik (thermal building physics), Bauakustik/Schallschutz (building acoustics), Raumakustik (room acoustics), Lärmschutz (noise protection), Bauökologie (building ecology), Messungen (measurements), Simulationen (simulations), Gutachten (expert assessments), and Gebäudezertifikate (building certifications). Services are delivered through professional teams at offices in Dornbirn, Innsbruck, and Nuremberg, covering Western Austria, Southern Germany, and project-based work in Eastern Austria, Northern Italy, Liechtenstein, and Switzerland.

Differentiator

Problem solved

Functional benefit

Products and services

• Thermische Bauphysik Thermal building physics services including heat and moisture protection calculations, thermal bridge analysis, energy certificates, and Passivhaus calculations using PHPP for property developers, municipalities, and construction companies.
• Bauakustik / Schallschutz Building acoustics and sound protection services including air and impact sound insulation calculations, building acoustic expert reports, and local specialist supervision for construction projects.
• Raumakustik Room acoustics optimization services including reverberation time calculation, speech intelligibility analysis, 3D acoustic simulation, and quality assurance measurements for interior spaces.
• Lärmschutz Noise protection consulting including noise technical assessments for commercial and construction permits, site selection advice, noise reduction planning, and noise mapping for zoning purposes.
• Bauökologie Building ecology services including ecological material optimization, OI3 and EI building life cycle assessment, product management quality assurance, and hazardous substance investigation for sustainable construction.
• Messungen On-site measurement services including thermography, air tightness testing (Blower Door), acoustic measurements, reverberation time, air pollutant measurements, and material investigations for quality assurance and defect diagnosis.
• Simulationen Dynamic simulation services including dynamic building simulation, dynamic moisture simulation (1D/2D), daylight simulation, noise technical simulation, and room acoustic simulation with 3D models for predictive building performance analysis.
• Gutachten Court-recognized expert assessments including building physics damage reports, noise reports for permits, energy audits, hazardous substance surveys, and HVAC hygiene inspections delivered by two court-certified expert witnesses.
• Gebäudezertifikate Building certification consulting for KGA, Passivhaus, EU GreenBuilding, klimaaktiv, TQB, LEED, and BREEAM certification systems, delivered in cooperation with the Österreichisches Institut für Bauen und Ökologie (IBO).

Quantifiable outcome

• Approximately 60 to 80 expert opinions delivered annually for private individuals, companies, insurance companies, and courts.
• +1 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• Österreichisches Institut für Bauen und Ökologie (IBO)coreStrategic or Co-development PartnerCooperation partner for international building certifications including LEED and BREEAM. The company collaborates with IBO in Vienna to deliver internationally recognized building certification services to clients in Austria and beyond.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Buro Happold Engineering: Global engineering consultancy with sustainability, building physics, and façade engineering expertise. Broader incumbent offering overlapping services for high-performance building projects, including across DACH markets.
• Drees & Sommer SE: Leading German engineering consultancy with extensive sustainability, ESG, and building physics practice. Broader incumbent offering overlapping building certification, energy, and consulting services across the DACH region at significantly greater scale.
• Ramboll Group: Global engineering consultancy with a significant sustainability and building performance practice. Broader incumbent offering similar advisory and certification-adjacent services across multiple markets, including the DACH region.
• WSP Global: Global engineering firm with building performance, sustainability, and ESG advisory services. Broader incumbent competing for similar large commercial and institutional sustainability mandates across Europe.

Direct peers

• Müller-BBM Group: German engineering firm specializing in acoustics, vibration, and building physics with measurement, simulation, and expert opinion services. Most direct technical peer to SPEKTRUM in scope and scale, operating across Germany and selected international markets.
• Werner Sobek: German engineering firm focused on sustainable, resource-efficient building design with integrated structural and façade engineering. Direct peer in sustainable building engineering, competing for similar high-end DACH mandates.
• ATP architekten ingenieure: Austrian integrated design firm combining architecture, structural engineering, and building physics with strong sustainability credentials. Direct regional peer overlapping SPEKTRUM's building physics and Passivhaus/klimaaktiv work in the Austrian market.

Others

• IBO – Österreichisches Institut für Bauen und Ökologie: Austrian research and consulting institute specializing in building ecology, LCA, and OI3 certification standards. Strategic cooperation partner of SPEKTRUM and adjacent ecosystem player providing ecological assessment standards and certification infrastructure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Spektrum Bauphysik & Bauokologie Gmbh