What Naumburger Bauunion does

Naumburger Bauunion GmbH & Co. Bauunternehmung KG is a privately held German general contractor headquartered in Mertendorf OT Görschen, Sachsen-Anhalt. Founded in 1990 by Rüdiger Kürbs and now led by Managing Director Sven Häselbarth, the company employs approximately 300 people and operates three sites in Sachsen-Anhalt, including its main office, an operations facility in Freyburg, and owned gravel quarries in Prittitz and Teuchern. It serves federal, state, and municipal government agencies (notably DEGES, LHW Sachsen-Anhalt, and LSBB Sachsen-Anhalt) as well as industrial customers such as AGCO, Industriepark Zeitz, and Infraleuna across the Central Germany region.

The company's offering is organized around ten integrated service lines: road construction, canal and drainage construction, earthworks, DVGW-certified pipeline construction (W3/G3), plant construction, site development, general contractor turnkey delivery, trenchless pipe installation (over 100,000 meters of references with diameters up to DN 1000), flood protection, and contaminated site remediation. Underlying technology includes GPS-controlled construction machinery, a modern excavator fleet, trenchless installation methods (press boring, microtunneling, mud circulation), and the worldwide Feste Fahrbahn solid-track railway patent registered in 2003. Güteschutz Kanalbau AK1 certification and DVGW approvals underpin eligibility for regulated public-sector work.

Revenue is generated through project-based contracts awarded via public tenders and direct negotiation with industrial clients, with documented individual project values reaching €39 million (B91 federal highway expansion). The company holds an in-house apprenticeship and dual-study program with 30+ trainees, operates as both subcontractor and general contractor, and pursues multi-year project cycles typical of civil infrastructure delivery. Pricing is individually negotiated per project; no SaaS or recurring revenue component exists. No external institutional investment, acquisitions, or parent-company relationship is disclosed.

Name

Naumburger Bauunion

Legal name

Naumburger Bauunion GmbH & Co. Bauunternehmung KG

Website

https://naumburger-bauunion.de

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

251–500 employees

Short description

Naumburger Bauunion is a privately held German general contractor (~300 employees) in Sachsen-Anhalt delivering integrated civil engineering, road, pipeline, and remediation services to government agencies and industrial clients across Central Germany.

Ownership category

akta.pro rank

Product category

Civil Engineering and Infrastructure Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Water and Sewer Line and Related Structures Construction (237110), Utility System Construction (2371), Site Preparation Contractors (23891)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industry

Sheet Metal & Ductwork Contracting (IMAFALAH)

Keywords

• Civil engineering services
• Road construction
• Pipeline construction
• Earthworks excavation
• Infrastructure construction

Headquarters

HQ city

Mertendorf

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: Project-based construction contracts including road construction, canal building, pipeline installation, earthworks, flood protection, industrial site development, and general contractor (GU) services. Revenue is generated through large-scale public infrastructure projects and industrial construction contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Naumburger Bauunion is a German civil engineering contractor providing road construction, canal and drainage construction, earthworks, pipeline construction, plant construction (Industrie- und Anlagenbau), site development, trenchless pipe installation, flood protection works, and contaminated site remediation. The company also acts as general contractor for complex infrastructure projects and holds proprietary "Feste Fahrbahn" rail track technology. Its customers are public authorities (DEGES, LHW, LSBB) and industrial companies (AGCO, Industriepark Zeitz) in Saxony-Anhalt and Central Germany.

Product overview

Naumburger Bauunion is a medium-sized construction company headquartered in Mertendorf OT Görschen, Germany, with approximately 300 employees and over 33 years of history. The company operates as a unified service provider offering integrated construction solutions from consultation and planning through to execution and turnkey delivery. Its core portfolio consists of ten specialized service lines: Straßenbau (road construction), Kanalbau (canal/drainage construction), Erdbau (earthworks), Rohrleitungsbau (pipeline construction), Anlagenbau (plant construction), Erschließung (development), GU-Aufträge (general contractor contracts), Grabenlose Rohrverlegung (trenchless pipe installation), Hochwasserschutz (flood protection), and Altlastensanierung (contaminated site remediation). The company is known for large-scale infrastructure projects including the B91 federal highway expansion (€39 million), the B87n bypass at Bad Kösen (~13 km), and industrial park development at Zeitz. Their operations are supported by GPS-guided construction equipment, specialized machinery including a walking excavator for difficult terrain, and multiple own quarries and gravel pits. They function as a full-service construction partner from initial consulting through to complete project delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• Road Construction (Straßenbau) Construction and surfacing of roads for public infrastructure clients including state and federal road-building authorities.
• Canal and Drainage Construction (Kanalbau) Construction of sewer and drainage canal systems, delivered under Güteschutz Kanalbau AK1 certification.
• Earthworks (Erdarbeiten) Excavation, grading and earthmoving services using a modern GPS-controlled machine fleet.
• Pipeline Construction (Rohrleitungsbau) Installation of pipelines carried out under DVGW W3/G3 certification, including trenchless pipe-laying methods.
• Plant Construction (Industrie- und Anlagenbau) Civil and structural construction services for industrial sites and plants, delivered for industrial customers such as AGCO and Industriepark Zeitz.
• Site Development (Erschließung) Development and preparation of land and sites, including the laying of utilities and access infrastructure for new sites.
• General Contractor Services (Generalunternehmer) End-to-end delivery of complex construction projects as a general contractor, bundling multiple civil engineering disciplines.
• Trenchless Pipe Installation (Grabenlose Rohrverlegung) No-dig and trenchless methods for installing pipes and pipelines, used in pipeline construction and site development.
• Flood Protection (Hochwasserschutz) Construction of flood protection infrastructure for water management authorities, including the LHW of Saxony-Anhalt.
• Contaminated Site Remediation (Altlastensanierung) Remediation and reclamation of contaminated sites as part of brownfield redevelopment projects.

Quantifiable outcome

• B91 project completed with 6 new bridges and 3-lane expansion over 8 years
• +2 more outcomes

Named customers9 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

Feature2 records

Partnerships

Four partnerships are on record, tiered major and minor.

• REINWALD GmbHmajorStrategic or Co-development PartnerARGE (working group) partner for Industriepark Zeitz project since May 2024. Jointly handling site preparation including contaminated soil remediation and earthworks on approximately 90,000 m² area for ethyl acetate production facility.
• Jacbo Bohrpfahlgründung GmbHmajorStrategic or Co-development PartnerARGE partner for bore pile foundation work at Industriepark Zeitz. Approximately 650 bored piles with up to 1m diameter produced to depths of nearly 20m, largely in contaminated (black) areas.
• STRABAGmajorStrategic or Co-development PartnerARGE Civil Works partner (Naumburger Bauunion GmbH & STRABAG) for steel concrete foundation work at Industriepark Zeitz since February 2025.
• Bickardt Bau and BauerminorGTM or Marketing PartnerJoint training day with apprentices from Bickardt Bau and Bauer on construction site near Bad Kösen, focusing on teamwork and networking among young construction professionals.

Scale indicators5 records

Recent moves9 records

Expansion highlights4 records

Broad incumbents

• STRABAG: One of Europe's largest construction groups with deep civil engineering, road, and pipeline capabilities. Already an ARGE partner with NBU on the Industriepark Zeitz project, making it both a peer on regional tenders and a competitor at the larger scale.
• HOCHTIEF: Germany's largest construction company with civil engineering, road, and infrastructure capabilities. Competes for major public tenders including DEGES and state-level Bundesland projects where NBU also bids.
• Eurovia (VINCI): European road construction and infrastructure subsidiary of VINCI, active in Germany through subsidiaries. Direct overlap on Straßenbau, Kanalbau, and Erdbau competencies that comprise NBU's core service lines.

Direct peers

• Bickardt Bau: Mid-sized German civil and road construction contractor based in Thuringia, operating in overlapping Central German geographies. Conducts joint training events with NBU, indicating close comparable scale and adjacent regional competition.
• Leonhard Weiss: Family-owned German construction group with road, civil engineering, and rail infrastructure operations. Comparable mid-to-large private contractor profile with similar general contractor (GU) service offerings across Germany.
• KEMNA BAU Andreae: Mid-sized German road and civil engineering contractor with comparable service portfolio across road construction, earthworks, and asphalt paving. Competes for the same regional public infrastructure tenders in Central Germany.
• Matthäi Bauunternehmen: Family-owned German construction group with road, civil, and pipeline construction across northern and eastern Germany. Similar private mid-sized contractor profile competing for comparable public infrastructure contracts.
• Bauer AG: German specialist in foundation engineering and groundworks, partnering with NBU on joint training and adjacent in scope to NBU's bored-pile foundation work at Industriepark Zeitz. Comparable in scale and German private-company profile.
• Max Bögl: Major German construction and infrastructure group with strong rail (including slab track) and civil engineering capabilities. Direct peer on Feste Fahrbahn-adjacent rail work and large public infrastructure projects.
• REINWALD GmbH: German civil engineering contractor partnering with NBU as ARGE working-group member on contaminated-site and earthworks projects. Directly comparable mid-sized regional contractor competing in adjacent service lines.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nbu

Compliance4 records

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 Naumburger Bauunion