Kemna Bau Ost

What Kemna Bau Ost does

KEMNA BAU Ost GmbH & Co. KG is a regional operating subsidiary of the KEMNA-Gruppe (legal parent: KEMNA BAU Andreae GmbH & Co. KG, headquartered in Pinneberg, Germany), focused on traffic infrastructure construction in eastern Germany including Berlin. The KEMNA-Gruppe was founded in 1867 in Breslau as a machine factory, evolved into road construction equipment, and post-WWII rebuilt under Dr. Karl Andreae in Hamburg. It has been family-controlled since, with Jacob Andreae and Michael Liell currently serving as Managing Directors. The group employs approximately 2,200 people across more than 70 locations in Germany, including dedicated branches in Hamburg, Leipzig, Berlin, Hannover, Neuss, Gelsenkirchen, and Bad Harzburg, plus specialized subsidiaries (VAM, ASPA, MDB, GEHRKEN, Daniel Kunz, ITB Ingenieurtiefbau, Guss-Asphalt Ceh, BiB, Steinbruch Lasbeck, KEMNA Schwerin).

The group's business is structured around three vertically integrated pillars: Verkehrswegebau (road construction covering autobahn expansion, bridge rehabilitation, airport runways, railway infrastructure, earthworks, drainage, paving, and structural rehabilitation); Asphaltproduktion (asphalt mix production from mobile and stationary mixing plants with electronic recipe control, polymer-modified bitumen per TL Bitumen-StB, and a recycling management system using granulators to reuse reclaimed asphalt); and Rohstoffgewinnung (aggregate extraction from quarries and gravel pits, including rail transshipment facilities with 400 t/h capacity and over 20,000 tons of storage). Specialized services include Bauwerksinstandsetzung (structural rehabilitation per DIN EN 1504 and ZTV-ING), Erd-/Deich-/Deponiebau (earthworks, dyke construction, landfill construction), and Spezialbau (compaction asphalt, open-porous and water-permeable asphalts, DSH-V thin-layer sealing).

The business model is contract-based: revenue is generated primarily through competitive tenders for public sector infrastructure projects (German federal government, Deutsche Bahn, municipal authorities), with secondary revenue from sale of asphalt mix, polymer-modified bitumen, and aggregates to both internal construction projects and external customers. Distribution is direct via the subsidiary and branch network, with road construction products (seam and joint sealing, crack repair, pothole treatment) delivered from Hamburg and Leipzig throughout Europe. The company holds PQ-VOB national pre-qualification, DB AG railway certification, ISO 9001/45001/50001 certifications, and EMB value management certification, collectively qualifying it for institutional infrastructure tenders.

Name

Kemna Bau Ost

Legal name

KEMNA BAU Andreae GmbH & Co. KG

Website

https://kemna.de

Company type

Private

Founded year

1867

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

KEMNA BAU Ost is a regional subsidiary of the KEMNA-Gruppe, providing vertically integrated road construction, asphalt production, and aggregate extraction services to German public sector and infrastructure clients across eastern Germany.

Ownership category

akta.pro rank

Product category

Road Construction & Civil Engineering

NAICS

Asphalt Shingle and Coating Materials Manufacturing (324122)

SIC

Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Asphalt Mixing & Paving Materials (Hot/Warm/Cold Mix, RAP/RAS Blends) (EUALAKAG)

akta.pro secondary industry

Sand & Gravel Extraction & Processing (IMAKAHAB)

Keywords

• Road construction services
• Asphalt production
• Aggregate extraction
• Civil engineering
• Traffic infrastructure construction

Headquarters

HQ city

Pinneberg

HQ country

Germany

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Verkehrswegebau (Traffic Route Construction): Core construction services for road infrastructure including new construction, renovation, and maintenance of traffic routes, bridges, and civil engineering structures across Germany
2. Asphalt Production: Production and sale of asphalt mixture, polymer-modified bitumen, and road construction products from company-owned and operated mixing plants
3. Raw Material Extraction (Rohstoffgewinnung): Extraction and processing of aggregates including crushed stone from quarries and gravel from gravel pits, used as raw materials for asphalt production and construction

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

KEMNA BAU Ost GmbH & Co. KG is the eastern German regional subsidiary of the KEMNA-Gruppe, a vertically integrated traffic infrastructure construction group. The company's core offerings cover three interconnected business areas: (1) Verkehrswegebau — construction, renovation and maintenance of roads, autobahns, bridges, airport runways and railway infrastructure; (2) Asphaltproduktion — production of asphalt mix, polymer-modified bitumen, and road maintenance products at owned mixing plants; and (3) Rohstoffgewinnung — extraction of crushed stone and gravel from owned quarries and gravel pits to feed its asphalt production and external customers.

Product overview

KEMNA BAU Ost GmbH & Co. KG is a regional subsidiary of the KEMNA-Gruppe, a vertically integrated construction group operating in traffic infrastructure. The company offers three interconnected core service areas: Verkehrswegebau (road construction), Asphaltproduktion (asphalt production), and Rohstoffgewinnung (raw material extraction). This vertical structure enables the group to control the entire value chain from aggregate extraction through asphalt production to final road construction. The portfolio includes specialized services such as structural rehabilitation (Bauwerksinstandsetzung), earth/dyke/landfill construction, bitumen production, and recycling management. Products are manufactured at company-owned plants and delivered throughout Germany and Europe via an integrated logistics network including rail and road transport.

Differentiator

Problem solved

Functional benefit

Products and services

• Verkehrswegebau (Traffic Route Construction)

Quantifiable outcome

• Over 150 years of experience in road construction
• +1 more outcomes

Named customers3 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

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• ASH (Asphaltmischwerke Schleswig-Holstein)coreStrategic or Co-development Partner · 1 January 2023Joint venture between KEMNA subsidiary VAM and Hermann Wegener to operate asphalt mixing plants in Schleswig-Holstein. ASH operates mixing facilities in Eggebek, Lübeck, and Wahlstedt.
• iPAK5 - Integrated Project Alliance for Kattwyk BridgecoreStrategic or Co-development Partner · 1 January 2022KEMNA participates in the integrated project alliance for the renovation of the Kattwyk bridge in Hamburg port. This is a collaborative project delivery approach for complex infrastructure.
• Via Solutions Nord GmbH & Co. KG (PPP BAB A7)coreStrategic or Co-development Partner · 1 January 2014KEMNA is shareholder and construction partner in the consortium that built and now operates the BAB A7 section Hamburg-Bordesholm under a 30-year PPP concession. ARGE Via Solutions Nord carries out construction.
• Papenburg-GruppeminorStrategic or Co-development PartnerJoint takeover of the Natursteinkombinat Halle in 1990 with the Papenburg Group, leading to formation of Mitteldeutsche Baustoffe GmbH (MDB)
• Vereinigte Asphalt Mischwerke GmbH & Co. KG (VAM)coreStrategic or Co-development PartnerFounded in 1966 by KEMNA BAU and Norddeutsche Mischwerke Dr. Schmidt & Co KG. VAM operates eleven mixing plants and is majority-owned by KEMNA.
• Industry Association MembershipsminorOthersMember of Zentralverband des Deutschen Baugewerbes, Deutscher Asphaltverband, FGSV, GüFA, DSH-V, MIRO, Pro-Mobilität, UVMB, and other industry bodies

Scale indicators4 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Leonhard Weiss GmbH & Co. KG: German family-owned construction company with significant road construction and civil engineering operations. Directly competes in traffic route construction across multiple German states.
• Goldbeck GmbH: Privately held German construction company operating across multiple building and infrastructure segments. Comparable family-owned mid-market structure with similar geographic reach in Germany.
• Max Bögl Stiftung & Co. KG: Large German family-owned construction group active in civil engineering, infrastructure, and building construction. Comparable in scale, ownership structure, and German infrastructure market focus.
• EUROVIA GmbH (VINCI Group): German subsidiary of EUROVIA/VINCI, one of the world's largest road construction and asphalt production groups. Directly competes with KEMNA in German autobahn construction, asphalt production, and aggregate extraction.

Broad incumbents

• STRABAG SE: One of Europe's largest construction companies with significant road construction and asphalt production operations across Germany and Central Europe. Directly comparable for traffic route construction services and integrated materials supply.
• HOCHTIEF AG: Major German-based international construction group with infrastructure construction activities including road and bridge work. Overlaps with KEMNA in German public infrastructure bidding.
• Heidelberg Materials AG: Global building materials producer with significant German asphalt and aggregates operations. Comparable in the raw material extraction and asphalt production segments of KEMNA's value chain.
• BILFINGER SE: German industrial services and construction company with infrastructure and civil engineering capabilities, including road and bridge projects. Competes for similar German infrastructure tenders.

Regional players

• Gebrüder Haider Bauunternehmung GmbH: Austrian construction group with road construction and asphalt production activities in the DACH region. Comparable in vertical integration model though primarily operating in Austria.

Emerging players

• VESTAS (vergleichbare Baustoffgruppe): Smaller German construction materials and services group active in asphalt and aggregates. Comparable as a regional mid-market player in the same upstream materials value chain.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xxing.com/pages/kemna
• LinkedInde.linkedin.com/company/kemna
• Instagraminstagram.com/kemna_gruppe

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries12 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 Kemna Bau Ost