Basalt-Union GmbH

What Basalt-Union GmbH does

Basalt-Union GmbH is a German construction materials producer headquartered in Linz am Rhein, operating as a subsidiary of the Basalt AG (Basalt-Actien-Gesellschaft) corporate group. The company quarries and processes natural stone types including Basalt, Grauwacke, Diabas, and Andesit, and manufactures asphalt mixtures at dedicated mixing plants. Its core product portfolio spans Gesteinskörnungen (aggregates), asphalt mixtures across multiple road layers (AC-Tragschicht, AC-Binder, AC-Deckschicht, Splittmastix, Gussasphalt), Wasserbausteine (water construction stones), Gleisbauprodukte (railway construction products), Gesteinsmehle (rock flour), recycling materials, and landfill/waste management services.

The company operates a vertically integrated production network comprising quarries (Steinbrüche), asphalt mixing plants (Asphaltmischanlagen), recycling facilities, and disposal sites across Germany, with regional sales coverage in Rhineland, Westerwald, Eifel, and Entsorgung. It serves public road authorities (Baulastträger) and construction companies (Bauunternehmen) through project-based sales with quote-driven pricing and direct delivery from production facilities. The company is certified as an Entsorgungsfachbetrieb (certified waste management facility) with permits for handling both tar-free and tar-containing road demolition materials, and complies with BauPVO standards for construction products.

Basalt-Union's business model is based on one-time transaction sales of construction materials tailored to specific project requirements, with no publicly disclosed pricing. Revenue is not disclosed, and the company operates as a privately held GmbH. It is part of the broader Basalt AG group, which includes additional entities such as Bitumina and the Lebensräume (renaturation/re-cultivation) initiative, and uses the Basalt AG Service App to provide digital tools to planners, logistics companies, and construction firms.

Name

Basalt-Union GmbH

Legal name

Basalt-Union GmbH

Website

https://basalt-bwh.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Basalt-Union GmbH is a German construction materials producer that quarries natural stone (Basalt, Grauwacke, Diabas, Andesit) and manufactures asphalt mixtures, serving public road authorities and construction companies across multiple regions in Germany as part of the Basalt AG group.

Ownership category

akta.pro rank

Product category

Construction Materials (Aggregates & Asphalt)

NAICS

Nonmetallic Mineral Mining and Quarrying (2123), Crushed and Broken Granite Mining and Quarrying (212313), Asphalt Paving Mixture and Block Manufacturing (324121), Construction Sand and Gravel Mining (212321), Asphalt Paving, Roofing, and Saturated Materials Manufacturing (32412)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Crushed Stone Quarrying & Processing (IMAKAHAA)

akta.pro secondary industries

Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI), Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH), Recycled Aggregates & C&D Materials Processing (RCA, RAP, Glass Aggregate) (IMAKAHAI), Asphalt Aggregates & Specialty Aggregates (Rail Ballast, Riprap, Lightweight) (IMADAAAJ)

Keywords

• Construction materials
• Natural stone aggregates
• Asphalt production
• Quarrying operations
• Road construction materials

Headquarters

HQ city

Germany (Multiple Locations)

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Personnel, Marketing or Sales

Revenue model

1. Construction Materials Sales: One-time transaction-based sales of natural stone aggregates, asphalt mixtures, water engineering stones, and railway construction products to construction companies and public entities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Basalt-Union GmbH quarries and processes natural stone aggregates (Basalt, Grauwacke, Diabas, Andesit) and produces asphalt mixtures at multiple production facilities across Germany. The company supplies construction materials to road construction companies and public road authorities (Baulastträger), and operates an integrated network of quarries, asphalt mixing plants, recycling facilities, and a certified waste management disposal site. Its offerings span aggregates, asphalt mixtures for all road layers, water engineering stones, railway construction products, rock flour, and tar-free and tar-containing asphalt recycling services.

Product overview

Basalt-Union GmbH operates as a construction materials company with a multi-facility production network comprising quarries (Steinbrüche) and asphalt mixing plants (Asphaltmischanlagen). The product portfolio centers on asphalt mixtures and natural stone aggregates, supplemented by water construction materials, railway products, recycling services, and waste management. Key stone types include Basalt (for road construction hardness and weathering resistance), Grauwacke (high PSV values for road surfaces), Diabas (polish resistance and compression strength), and Andesit (versatile dark-colored aggregate). Asphalt products span all road layers from base to surface course, including specialized mixes like Splittmastix and Gussasphalt. The integrated approach combines quarrying, asphalt production, recycling, and logistics operations serving public road authorities and construction companies.

Differentiator

Problem solved

Functional benefit

Products and services

• Gesteinskörnungen (Aggregates) Natural stone aggregates for road construction, including Basalt, Grauwacke, Diabas, and Andesit, serving as the foundational material for road surfaces with properties such as hardness, frost resistance, and high PSV values. Supplied to construction companies and public road authorities.
• Asphaltmischgut (Asphalt Mixture) Asphalt mixtures including AC-Tragschicht, AC-Binder, AC-Tragdeckschicht, AC-Deckschicht, Splittmastix, Gussasphalt, and Sondermischgut for various road construction layers and applications. Produced at multiple asphalt mixing plants and supplied to construction companies and public road authorities.
• Wasserbausteine & Schüttsteine (Water Construction Stones & Riprap) Water construction stones and riprap for hydraulic engineering applications, providing erosion protection and stabilization for waterway projects such as canals, rivers, and flood control structures. Supplied to water engineering contractors and public authorities.
• Gleisbauprodukte (Railway Construction Products) Railway track construction materials including ballast and track materials for railroad infrastructure development and maintenance. Supplied to railway construction and infrastructure maintenance companies.
• Recycling und RC-Baustoffe (Recycling and RC Construction Materials) Recycling services for both tar-free and tar-containing asphalt, processing reclaimed asphalt pavement into recycled construction materials. Operated as a certified disposal facility.
• Deponie/Entsorgungsmanagement (Landfill/Waste Management) Certified waste management facility services including acceptance and disposal of construction materials, with specialized handling of tar-containing road demolition materials. Operates under Entsorgungsfachbetrieb certification.
• Logistik (Logistics) Transportation and logistics services supporting the delivery of construction materials from production facilities to construction sites, including rail and ship transshipment capabilities.
• Gesteinsmehle (Rock Flour) Ground rock flour products derived from natural stone processing, used in various construction and industrial applications as a by-product of aggregate production.
• Asphaltnahe Aktivitäten (Asphalt-Related Activities) Asphalt-related services and activities complementing the core asphalt mix product offerings, encompassing ancillary operations in the asphalt value chain.

Quantifiable outcome

• Certified to Bauproduktenverordnung (BauPVO) standards for construction products

Named customers2 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

Feature4 records

Partnerships

One partnership is on record.

• Basalt AGcoreOthersParent company (Unternehmensverbund) of Basalt-Union. Basalt AG operates additional websites including Basalt-Actien-Gesellschaft, Lebensräume (renaturation and recultivation), and provides the company service app. The group includes multiple companies including Basalt-Union and Bitumina with operations across Germany.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• CRH plc: Global building materials group with material European aggregates and asphalt operations through legacy companies. Overlaps with Basalt-Union in aggregates and road construction materials but operates as a diversified incumbent across multiple construction material categories.
• Cemex S.A.B. de C.V. Global aggregates, cement, and ready-mix concrete producer with European operations. Competes in the same commodity aggregates and asphalt segments as Basalt-Union but with integrated cement and broader geographic reach.
• Strabag SE: Austrian-headquartered European construction group with significant German operations in road building and civil engineering. While primarily a contractor, Strabag operates its own materials supply chain in aggregates and asphalt, making it a comparable materials and end-customer competitor.
• Martin Marietta Materials, Inc. Major US-listed aggregates-led building materials company with a heavy focus on crushed stone and specialty aggregates. A useful comparable for the underlying commodity aggregates business model that Basalt-Union operates, even though they sit in different geographies.
• Heidelberg Materials AG: Germany's largest building materials group with integrated cement, aggregates, and ready-mix concrete operations across Europe. Competes directly with Basalt-Union in German aggregates and asphalt markets but at vastly larger scale and broader geographic scope.
• Vulcan Materials Company: Largest pure-play aggregates producer in the United States, providing a comparable business model benchmark for quarry-led aggregates operations. While geographically separate, it is a relevant public-market comparable for evaluating aggregates-only or aggregates-heavy business models.
• Holcim Ltd: Global leader in building materials and aggregates with a strong European presence. Offers overlapping aggregates and asphalt products in Germany and adjacent markets as part of a broad portfolio rather than a regional specialty.

Direct peers

• Bitumina: Sister company within the Basalt AG group, explicitly referenced in the company's data, with a focus on bitumen and asphalt-related activities serving the same German construction market as Basalt-Union.
• KEMNA BAU Andreae GmbH & Co. KG: German mid-sized construction materials company producing asphalt mixtures, aggregates, and road construction services across multiple German states — directly comparable in product mix, customer base (public road authorities and construction companies), and regional sales model.
• Basalt AG (Basalt-Actien-Gesellschaft): Parent company of Basalt-Union within the same corporate group, operating additional quarries, asphalt plants, and recycling facilities across Germany with the same product portfolio (aggregates, asphalt, water engineering, railway construction) and the shared Basalt AG service app.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/basalt-union-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Basalt-Union GmbH