What Bollinger+Grohmann does

Bollinger+Grohmann is a privately held, Frankfurt-based engineering consulting firm founded in 1983 by Klaus Bollinger and Manfred Grohmann. The firm specializes in structural engineering, façade engineering, building physics, and fire engineering, with complementary service lines in Building Information Modelling (BIM), design technology, building retrofit, sustainability consulting, and site supervision. It employs 420+ engineers, architects, structural drafters, and specialists across 19 offices in 10 countries, with European hubs in Frankfurt, Berlin, Munich, Paris, Brussels, Oslo, Budapest, and Vienna.

The firm operates a project-based professional services model in which architects, real estate developers, public authorities, and industrial clients commission engineering services via architectural competitions, referrals, and direct commissions. Revenue is generated through fee-for-service engagements billed against defined project phases from feasibility through construction supervision; no subscription or productized pricing tiers are disclosed. B+G differentiates on interdisciplinary integration (four engineering disciplines in one firm), digital workflows using BIM, parametric/computational design, and VR, proprietary computational tools for fire safety analysis, and a strong brand built over 40+ years of award-winning work with globally renowned architects (Zaha Hadid, BIG, Snøhetta, Coop Himmelb(l)au) on signature projects such as Leeza SOHO (Beijing), Omniturm (Frankfurt), ECB (Frankfurt), and the Dalian International Conference Center.

Market positioning relies on talent (many team members hold academic positions, with co-founder Manfred Grohmann awarded the Torroja Medal in 2019), thought leadership (published books, exhibitions, university engagement), and a deep library of award-recognized case studies across steel, timber, concrete, and complex geometry. Demand is generated primarily through architectural competitions, referrals, and direct commissions rather than product or subscription channels. The company was restructured into a holding company in 2010, with operational responsibility now held by partners including Managing Directors Klaas De Rycke, Alexander Freund, and Saqib Aziz.

Name

Bollinger+Grohmann

Legal name

B+G Ingenieure Bollinger und Grohmann GmbH

Website

https://bollinger-grohmann.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

101–250 employees

Short description

Bollinger+Grohmann is a Frankfurt-headquartered structural, façade, building physics, and fire engineering consulting firm founded in 1983, employing 420+ staff across 19 offices in 10 countries and serving architects, developers, governments, and industrial clients on award-winning building and infrastructure projects.

Ownership category

akta.pro rank

Headquarters

HQ city

Frankfurt

HQ country

Germany

HQ region

Europe

Offices14 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: B+G generates revenue through fee-for-service engineering consulting engagements. Projects are commissioned by architects, developers, public clients, and construction companies for structural engineering, façade engineering, building physics, and fire engineering services. Revenue is project-based and typically billed against defined project phases (feasibility through construction supervision). No subscription or product-based revenue model is disclosed.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Bollinger+Grohmann is an engineering consulting firm that delivers structural engineering, façade engineering, building physics, and fire engineering services for buildings and infrastructure. Engagements span feasibility through construction supervision and are commissioned by architects, developers, public authorities, and industrial clients on complex, high-profile projects worldwide.

Product overview

Bollinger+Grohmann is an engineering services firm offering a unified portfolio of specialized consulting services for the construction industry. The core offerings include Structural Engineering, Façade Engineering, Building Physics, and Fire Engineering as the primary service lines. These are supported by complementary capabilities in Building Information Modelling (BIM), Design Technology, Building Retrofit, Sustainability Consulting, and Site Supervision. The company operates across 19 offices globally, serving architects, developers, and construction companies with an interdisciplinary approach that integrates architecture, building technology, and construction engineering from concept through completion.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Completed over 100 projects across 5 continents
• +1 more outcomes

Named customers10 records

Segments5 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

One partnership is on record.

• buildingSMARTminorOthersB+G participates in buildingSMART forums and events, with Manfred Grohmann presenting on 'Digitalization and Complexity' at the 20th buildingSMART Forum in Berlin in 2016.

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with building engineering, façades and structural practices among many other service lines. Overlaps with B+G on high-rise and complex building projects, but competes as a much broader multidisciplinary incumbent.
• Ramboll: Large Danish-headquartered engineering, design and consulting group covering structures, façades, sustainability and many adjacent disciplines at global scale. Broader portfolio and greater resources than B+G, but with overlapping core engineering services.
• WSP: Global professional services firm providing structural and building engineering alongside transportation, environmental and property services. Overlaps with B+G on building engineering but operates at much larger scale and breadth.

Direct peers

• Schlaich Bergermann Partner (SBP): German structural engineering firm with global footprint, focused on innovative structures, long-span bridges, lightweight and cable structures. Comparable to B+G in technical innovation culture and iconic-project portfolio.
• Arup: Global engineering consultancy offering structural, façade, fire, building physics, and multi-disciplinary engineering for iconic architectural projects. Directly comparable to B+G in service mix, project ambition, and client base (renowned architects, developers, governments).
• Werner Sobek: Stuttgart-headquartered structural, façade, and sustainability engineering consultancy with a comparable design-led, architect-centric culture. Closely matches B+G's German base, interdisciplinary engineering approach, and signature-project orientation.
• Buro Happold: International engineering consultancy with overlapping structural, façades, fire, and sustainability practices serving architects and developers. Closely comparable to B+G in service breadth and premium positioning on culturally significant buildings.
• Knippers Helbig: Germany-based structural engineering consultancy specialising in complex geometry buildings, façades and bridges. Highly comparable to B+G in the German/European signature-project niche and in interdisciplinary work with architects.
• Thornton Tomasetti: Global engineering consultancy with strong structural and façades practice serving architects and developers on complex buildings. Comparable to B+G in technical specialisation, although with a wider applied-research and forensics footprint.

Regional players

• Bollinger + Grohmann (legacy regional competitors): Smaller French and Belgian structural and façade consultancies (e.g., BET Iosis, KHEP, EGIS Bâtiments) overlap with B+G's Paris, Nantes and Brussels offices in market coverage.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@bollinger-grohmann
• LinkedInlinkedin.com/company/bollingergrohmann

Revenue estimate

Valuation estimate

Number of profiles

Profiles22 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 Bollinger+Grohmann