BGG Grünzig Ingenieure

What BGG Grünzig Ingenieure does

BGG Grünzig Ingenieure (legal entity: BGG Grünzig Ingenieurgesellschaft mbH) is a Frankfurt am Main-based architecture and engineering firm that delivers project management, construction supervision, and planning services for demanding construction projects. The firm operates across the full German HOAI service phases 1–8, with core offerings in Projektmanagement/Projektsteuerung (project management and control), Konzepte für Umnutzung und Revitalisierung (repurposing and revitalization concepts), Ausschreibung und Vergabe (tendering and award), and Objektüberwachung/Baumanagement (construction supervision and management). It serves institutional and corporate real estate owners, government agencies, real estate developers, and educational/research institutions, with its most visible specialty being Frankfurt Airport infrastructure work for Fraport AG (covering terminals, parking structures, substations, VIP facilities, and adjacent government buildings).

The firm's commercial underpinnings are fee-based professional services billed under the German HOAI fee structure, with contracts secured through competitive tendering and direct enterprise engagement. There is no public pricing, no SaaS component, and no channel partner program — projects are won in regulated procurement processes and delivered by an in-house team of more than 30 architects and engineers under long-tenured managing directors Volkmar Knüppel (Managing Director since 1995, main shareholder since 2005) and Harry Duhl. Customer concentration skews toward high-value aviation, government, and commercial real estate accounts (Fraport AG, Bundespolizei, Fraport Real Estate, Aurelis, GEG, Signa/KaDeWe, Hansainvest, Hochschule Mainz, THM Gießen, Alnatura Stiftung, DRK Blutspendedienst, Stiftung Bärenherz), with project geography concentrated in the Rhein-Main metropolitan area and extending to Berlin, Mannheim, Darmstadt, Wiesbaden, Mainz, Ulm, Würzburg, Hanau, Gießen, and Ludwigshafen.

The company traces to a 1976 founding by architect Karl Grünzig, was restructured in 1995 into three specialized entities, consolidated engineering operations under the current BGG entity in 2015, and in 2024 relocated headquarters from Bad Homburg to The Move at Gateway Gardens in Frankfurt am Main — a positioning move that places the firm adjacent to its anchor Fraport client. BGG is a privately held German limited liability company (GmbH), registered at AG Bad Homburg (HRB 5483), VAT ID DE 172288369, supervised by the Architekten- und Stadtplanerkammer Hessen. There are no public-company, IPO, funding, or external investor signals in the available data; ownership rests with managing-director Knüppel and operational leadership.

Name

BGG Grünzig Ingenieure

Legal name

BGG Grünzig Ingenieurgesellschaft mbH

Website

https://bgg.de

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

1–10 employees

Short description

BGG Grünzig Ingenieure is a Frankfurt-based architecture and engineering firm delivering project management, construction supervision, and planning across all HOAI phases 1–8 for institutional clients, with deep specialization in Frankfurt Airport infrastructure projects for Fraport AG.

Ownership category

akta.pro rank

Product category

Architectural & Engineering Services

NAICS

Architectural, Engineering, and Related Services (5413), Engineering Services (541330), Architectural Services (541310)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Services-Engineering Services (8711)

akta.pro primary industry

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

Keywords

• Architectural engineering services
• Construction project management
• HOAI consulting services
• Building design planning
• Construction supervision services

Headquarters

HQ city

Frankfurt am Main

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services – Architecture & Engineering: BGG generates revenue through fee-based professional services for architecture, engineering, and construction management projects. Services include project management, construction supervision (Objektüberwachung), tendering and awarding (Ausschreibung und Vergabe), and cost management. Revenue is project-based, spanning from early planning phases (LPH 1–5) through execution (LPH 6–8).

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

BGG Grünzig Ingenieure provides fee-based architecture, engineering, and construction management services covering all HOAI work phases (LPH 1–8), with core emphasis on Projektmanagement/Projektsteuerung, Objektüberwachung/Baumanagement, Ausschreibung und Vergabe, and concepts for repurposing and revitalization. Services are delivered by 30+ architects and engineers for institutional, corporate, public-sector, and aviation clients (notably Fraport AG at Frankfurt Airport) across the Rhein-Main region and other German metropolitan areas.

Product overview

BGG Grünzig Ingenieure is an architecture and engineering firm offering a unified service portfolio centered on project management and construction supervision for demanding construction projects. The company provides core services including Projektmanagement/Projektsteuerung (project management), Ausschreibung und Vergabe (tendering), Objektüberwachung/Baumanagement (construction supervision), and concepts for repurposing and revitalization. These services are applied across five project categories: Wohnen (residential), Büro (office), Forschung/Lehre (research/education), Flughafen (airport), and Funktion (functional buildings), with specialized expertise in Frankfurt Airport infrastructure projects. The company operates with more than 30 architects and engineers delivering services from planning phases (LPH 1-5) through execution (LPH 8).

Differentiator

Problem solved

Functional benefit

Products and services

• Projektmanagement / Projektsteuerung (Project Management and Project Control)

Named customers18 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

Partnerships

Two partnerships are on record, tiered minor.

• Grünzig Planungsgesellschaft mbHminorStrategic or Co-development Partner · 1 January 2001Grünzig Planungsgesellschaft mbH collaborated on the renovation and extension of the Rudergesellschaft Germania e.V. clubhouse in Frankfurt (2001), providing all planning services alongside BGG.
• Lamatsch-Kämpfe ArchitektenminorStrategic or Co-development PartnerLamatsch-Kämpfe Architekten served as the lead architects for the Fraport First Class Terminal project (completed 2004), with BGG providing tendering and construction supervision.

Scale indicators3 records

Recent moves10 records

Expansion highlights5 records

Broad incumbents

• Drees & Sommer: Stuttgart-based engineering, project management, and real estate consulting firm with over 5,000 employees and global operations. Comparable to BGG through its core project management / Projektsteuerung capabilities, integrated engineering and architectural consulting services, and institutional client base across Germany.
• gmp Architekten: Hamburg-headquartered, one of Germany's largest architecture firms with international presence, specializing in cultural, sports, transportation, and office buildings. Comparable to BGG through its architectural and project management services for major institutional projects, though significantly larger in scale and more internationally oriented.
• Hochtief: Major German-headquartered global construction company with operations across infrastructure, building, and project development. Comparable to BGG through its construction management capabilities on complex building and infrastructure projects, though operating at vastly greater scale and across broader geographies.

Direct peers

• Bollinger+Grohmann: Frankfurt-based structural and façade engineering firm with offices across Europe. Comparable to BGG through its engineering expertise, Frankfurt market presence, and focus on complex building and infrastructure projects, though more specialized on the engineering side.
• RKW Architekten: Düsseldorf-headquartered architecture firm with offices in multiple German cities, providing planning and design for corporate, residential, education, and healthcare projects. Comparable to BGG in mid-sized multi-disciplinary HOAI service offering and institutional client mix.
• HPP Architekten: Düsseldorf-headquartered German architecture firm with offices in Berlin, Munich, Hamburg, and Frankfurt, providing architectural design, masterplanning, interior design, and general planning across HOAI phases. Comparable to BGG in offering integrated architectural and construction management services to corporate, cultural, and infrastructure clients.
• JSK Architekten: Düsseldorf-based architecture firm with a strong track record in airport, infrastructure, and large-scale commercial projects across Germany. Comparable to BGG through its aviation-sector expertise, HOAI-based integrated service model, and similar mid-sized multi-disciplinary practice profile.
• KSP ENGEL: Frankfurt-based architecture and engineering firm with offices across Germany offering planning, design, and project management across HOAI phases. Highly comparable to BGG in size (mid-sized practice), multi-disciplinary service mix, Frankfurt market focus, and institutional client orientation including corporate real estate and infrastructure.
• Hascher Jehle Architektur: Berlin-based architecture firm with offices in Frankfurt, Stuttgart, and Munich, providing planning and design across office, residential, education, and infrastructure sectors. Comparable to BGG in offering full HOAI-phase architecture and project management to institutional clients and operating as a mid-sized multi-disciplinary practice.
• astoc ARCHITECTS AND PLANNERS: Cologne-based architecture and urban planning firm with project experience in office, residential, education, and infrastructure. Comparable to BGG in offering multi-disciplinary HOAI services to institutional and corporate clients as a mid-sized German architecture and engineering practice.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/bgg-gr%C3%BCnzig-ingenieure

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 BGG Grünzig Ingenieure