What Glass GmbH Bauunternehmung does

Glass GmbH Bauunternehmung is a family-owned, third-generation German construction group headquartered in Mindelheim, founded in 1948 and operating under the Glass Firmengruppe umbrella across six locations in Germany (Mindelheim, Munich, Markkleeberg/Leipzig, Berlin, Bad Wörishofen), Switzerland (Weinfelden, as Swiss Concrete GmbH), and the United Kingdom (Glass UK Civil Engineering Ltd.). The group employs approximately 800 people and delivers a full-scope construction service: Hochbau (building construction), Industrie- und Gewerbebau (industrial and commercial construction), Schlüsselfertiges Bauen (turnkey construction), Tiefbau (underground construction), Ingenieur- und Brückenbau (civil engineering and bridge construction, including Deutsche Bahn-prequalified railway bridges), Fertigteilwerk (in-house precast concrete production with a quality laboratory and concrete mixing tower supporting spans up to 50 metres), and Immobilien (real estate development and management through Glass Immobilien GmbH).

The business model is project-based, sales-led, and contract-driven: revenue is generated through multi-year construction contracts with private enterprises and public-sector clients, priced per project on specifications and scope, with no publicly disclosed standard pricing. Customer mix is broad and enterprise-weighted, spanning automotive (Reisacher, Motorworld, Cellforce), consumer goods (NESTLÉ, Kaufland), industrial manufacturing (Liebherr, OTEC, MULTIVAC, PERI, Dethleffs), food and dairy (Molkerei Müller, NESTLÉ), film/media (ARRI), retail, education, and transport infrastructure (Deutsche Bahn). Distribution runs through direct enterprise sales via the branch network, supported by an in-house precast plant that insulates the group from weather and supply-chain shocks and enables just-in-time delivery of structural elements to sites.

Group structure also includes Glass Umwelttechnik (environmental technology) and subsidiaries such as Kreuzer Bauunternehmung and Baumeister Herbert Maier Bau GmbH. The group trains approximately 40 apprentices annually, holds property developer and building supervisor permits under the German Trade Regulation Act, and has demonstrated operational efficiency improvements — most notably reducing concrete-production water intensity from 0.11 m³/m³ in 2023 to 0.087 m³/m³ in 2025. Ownership remains concentrated within the Glass family, with Björn Glass and Dieter Glass serving as Managing Directors and Götz Gutte leading the Leipzig civil-engineering subsidiary.

Name

Glass GmbH Bauunternehmung

Legal name

Glass GmbH Bauunternehmung

Website

https://glass-bau.de

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Glass GmbH Bauunternehmung is a family-owned, third-generation German construction group founded in 1948, employing ~800 people across Germany, Switzerland, and the UK. It delivers building, industrial, turnkey, civil/bridge, underground construction, in-house precast concrete, and real estate services to enterprise and public-sector clients.

Ownership category

akta.pro rank

Headquarters

HQ city

Mindelheim

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: Project-based construction services revenue for building construction, industrial and commercial construction, turnkey construction, underground construction, civil engineering, bridge construction, and precast concrete element supply. Revenue generated through contracts with private and public sector clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Glass GmbH Bauunternehmung is a family-owned construction company that delivers building construction, industrial and commercial construction, turnkey construction, underground construction, civil engineering and bridge construction, and in-house precast concrete element production. The company operates an integrated precast plant in Mindelheim producing columns, beams, walls, ceilings, trusses (up to 50 m spans), bridge elements, and tunnel liners, and is prequalified by Deutsche Bahn for railway bridge construction.

Product overview

Glass GmbH Bauunternehmung is a family-owned construction company founded in 1948 and now in its third generation of leadership. The company operates as a full-service construction firm with multiple divisions: Hochbau (building construction), Industrie- & Gewerbebau (industrial and commercial construction), Schlüsselfertiges Bauen (turnkey construction), Tiefbau (underground construction), Ingenieur- & Brückenbau (civil engineering and bridge construction), Fertigteilwerk (precast concrete production), and Immobilien (real estate). The company operates its own precast concrete plant in Mindelheim with quality laboratory and concrete mixing tower, enabling precise manufacturing of structural elements including components with spans up to 50 meters. The Glass Firmengruppe comprises approximately 800 employees across six locations in Germany (Mindelheim, München, Leipzig, Berlin, Bad Wörishofen) and Switzerland (Weinfelden), plus operations in the United Kingdom.

Differentiator

Problem solved

Functional benefit

Brands

• Glass Umwelttechnik: Environmental technology services
• Glass Immobilien
• Kreuzer Bauunternehmung
• Baumeister
• Swiss Concrete
• Glass UK Civil Engineering

Products and services

• Hochbau (Building Construction)
• Industrie- & Gewerbebau (Industrial & Commercial Construction) Construction of industrial facilities and commercial buildings with short construction times, exact timing, and dimensional accuracy, often using precast concrete elements.
• Schlüsselfertiges Bauen (Turnkey Construction) Complete turnkey construction services delivering fully finished buildings ready for use.
• Tiefbau (Underground Construction) Civil engineering services including trench, pipeline, and infrastructure construction using various pipe materials and modern surveying equipment.
• Ingenieur- & Brückenbau (Civil Engineering & Bridge Construction) Construction of bridges, trough structures, open cut tunnels, retaining walls, and other civil engineering structures, including pedestrian bridges, road overpasses and underpasses, railway bridges, and wildlife crossings. Prequalified by Deutsche Bahn for railway bridge construction.
• Fertigteilwerk (Precast Concrete Production) In-house precast concrete element production facility in Mindelheim producing columns, beams, walls, ceilings, bridge elements, tunnel liners, and custom special parts, with own quality laboratory and concrete mixing tower. Capabilities include spans up to 50 meters and production of architectural concrete with various finishes.
• Immobilien (Real Estate) Real estate services including property development, sales, and management delivered through Glass Immobilien GmbH.

Quantifiable outcome

• Water consumption reduced from 0.11 m³/m³ (2023) to 0.087 m³/m³ (2025) in concrete production
• +1 more outcomes

Named customers21 records

Segments3 records

Ideal customer profiles2 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.

• JobRadminorOthersEmployee benefits partnership for bicycle leasing. Glass offers JobRad bicycle leasing programme to employees as part of their compensation package.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Leonhard Weiss GmbH & Co. KG: Family-owned German construction company operating in building construction, civil/road construction, and turnkey projects. Similar size band and family-ownership model to Glass, with comparable service portfolio spanning Hochbau, Tiefbau, and Schlüsselfertigbau.
• Max Bögl: Large German construction group with deep capabilities in building construction, civil/bridge engineering, and an in-house precast concrete and wind-tower facility in Bavaria. Highly comparable to Glass given the overlap in Hochbau, Ingenieurbau, and precast production with a southern-German footprint.
• Goldbeck GmbH: German family-owned construction company specialising in turnkey commercial/industrial building construction with its own in-house precast concrete element production system. Closest direct competitor to Glass in terms of building construction + precast integration, geographic focus on Germany, and family-owned mid-cap scale.
• Wolff & Müller GmbH & Co. KG: Mid-sized German family-owned construction firm with Hochbau, Tiefbau, and turnkey offerings plus its own precast operations. Comparable to Glass on service mix, family ownership, and mid-cap scale, though more southern-focused.
• Depenbrock Bau GmbH & Co. KG: Family-owned German construction company active in building construction, civil engineering, and turnkey projects. Comparable to Glass on family ownership, multi-disciplinary service offering, and project-based sales to enterprise clients.
• Köster GmbH: German turnkey construction general contractor focused on commercial, industrial, and office buildings. Closely comparable to Glass's Schlüsselfertiges Bauen line of business, with similar project-based enterprise sales motion.

Broad incumbents

• Royal BAM Group: European construction group with building, civil engineering, and infrastructure operations across the Netherlands, UK, Germany, and Switzerland. Comparable to Glass's UK/Switzerland expansion path and multi-country service model.
• Strabag AG (incl. Züblin): Europe's largest construction group with leading positions in building construction, civil/bridge engineering, and precast concrete. Represents the scale incumbent Glass competes against on large infrastructure and turnkey mandates in Germany and Switzerland.

Regional players

• Heijmans N.V. Dutch-listed construction and real estate company with building, infrastructure, and development operations. Comparable in vertical scope (construction + real estate) to Glass's Hochbau + Immobilien combination, though primarily Netherlands-focused.

Others

• Dyckerhoff & Widmann (Dywidag): German construction and precast concrete specialist with historic strength in civil engineering, bridge construction, and precast elements. Comparable to Glass's precast and bridge construction activities, but operates more as a specialist supplier/contractor than a full-service general builder.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/GlassGmbH
• Facebookde-de.facebook.com/glassbau
• LinkedInlinkedin.com/company/bauunternehmung-glass-gmbh
• Instagraminstagram.com/glass_bau_firmengruppe

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries8 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 Glass GmbH Bauunternehmung