Baum Hoch-, Tief- Und Straßenbau GmbH

What Baum Hoch-, Tief- Und Straßenbau GmbH does

Baum Hoch-, Tief- und Straßenbau GmbH is a privately held German construction services company headquartered in Renchen, Baden-Württemberg, founded in 1985 by master craftsman Alfred Baum. The company operates five integrated service lines under one roof: Hochbau (building construction including private residential, industrial and renovation work), Tiefbau (civil engineering, pipeline construction, underground cable laying, separators and cisterns), Straßenbau (road construction, asphalt and paving), Netztechnik (telecommunications network planning, fiber optic and copper cable splicing, 24/7 maintenance and fault clearance), and Kabeleinbringarbeiten (cable insertion using blowing, pulling, and calibration/pressure testing technologies). It serves municipalities, utilities, industrial firms and private homeowners across the Baden region, with a second location in Karlsruhe opened in 2018.

The firm employs approximately 150 staff including engineers, master craftsmen, measurement technicians, building energy consultants and fiber optic specialists, supported by a large subcontractor network across the Baden region. It is DIN EN ISO 9001 certified and, since 2020, a member of the Elektro-Innung Mittelbaden, which authorizes it to install low- and medium-voltage networks plus EV charging infrastructure. Notable customers include Deutsche Telekom (FTTC/FTTH network planning and construction), EW Mittelbaden (20kV power cable laying), Stadt Kehl (municipal infrastructure projects) and Industriepark Willstätt (industrial fiber networks).

Commercially, Baum GmbH generates revenue on a project-based professional services model: contracts are individually priced by scope, materials and labor, with no standardized public pricing. Direct-to-customer engagement occurs via phone, email and in-person consultation. Revenue is split between discrete construction and installation projects (project-based) and ongoing 24/7 fault-clearance and maintenance contracts with utilities and telecom operators (recurring). Management comprises founder Alfred Baum alongside Nicole Straub (Hochbau/Controlling) and Michael Straub (Netztechnik), reflecting a multi-generational family-led governance structure with no disclosed external institutional ownership.

Name

Baum Hoch-, Tief- Und Straßenbau GmbH

Legal name

Baum Hoch-, Tief- und Straßenbau GmbH

Website

https://baum-bau.de

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

1–10 employees

Short description

Baum Hoch-, Tief- und Straßenbau GmbH is a Renchen-based German construction services firm offering integrated Hochbau, Tiefbau, Straßenbau, Netztechnik and cable-installation services to municipalities, utilities, industrial clients and private homeowners across the Baden region.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Nonresidential Building Construction (2362), Power and Communication Line and Related Structures Construction (237130), Electrical Contractors and Other Wiring Installation Contractors (23821), Other Heavy and Civil Engineering Construction (237990)

SIC

General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Electrical Work (1731)

akta.pro primary industry

Residential General Contracting (New Build) (IMAFAAAB)

Keywords

• Building construction services
• Civil engineering services
• Road construction services
• Telecommunications network construction
• Fiber optic cable installation

Headquarters

HQ city

Renchen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Installation Services: Project-based revenue from construction, civil engineering, road building, telecommunications network installation, and cable insertion services. Revenue is earned through contracts for individual construction projects, ranging from private residential building to large-scale municipal and industrial infrastructure projects.
2. Network Maintenance and Fault Clearance Services: Ongoing revenue from 24/7 maintenance and fault clearance services for telecommunications and utility networks, providing emergency response and infrastructure upkeep for municipal, utility, and enterprise clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Baum GmbH is a regional construction services firm that delivers Hochbau (building construction), Tiefbau (civil engineering), Straßenbau (road construction), Netztechnik (telecommunications network planning and installation), and Kabeleinbringarbeiten (cable insertion via blowing, pulling, calibration and pressure testing). The company serves municipalities, utilities, industrial firms, and private homeowners across the Baden region, including FTTH/FTTC fiber optic deployment and 24/7 network maintenance and fault clearance.

Product overview

Baum Hoch-, Tief- und Straßenbau GmbH is a construction and services company offering five core service lines: Hochbau (high-rise construction), Tiefbau (civil engineering), Straßenbau (road construction), Netztechnik (telecommunications network services), and Kabeleinbringarbeiten (cable insertion/installation). The Hochbau division provides private residential construction, industrial construction, and renovation/restoration services. Tiefbau covers pipeline construction, underground cable installation, and separator/cistern systems. Straßenbau encompasses asphalt pavements, paved surfaces, and edge restraints. Netztechnik provides telecommunications network planning, cable assembly, and maintenance services for fiber optic, copper, coaxial, and power networks. Kabeleinbringarbeiten offers cable pulling, cable blowing, and calibration/pressure testing services. The company has evolved since 1985 from a pure construction company to a technology and services company with approximately 150 employees, specializing particularly in fiber optic broadband network construction and maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Hochbau (Building Construction)

Quantifiable outcome

• Successfully serves the entire Baden region with 150 employees and a large subcontractor network
• +1 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered minor and core.

• Elektro-Innung Mittelbaden (Electrical Guild of Mittelbaden)minorOthers · 1 January 2020Membership in the Elektro-Innung Mittelbaden since 2020 enables Baum GmbH to officially offer the construction and installation of low-voltage and medium-voltage networks, as well as the setup of charging stations and wallboxes, extending the company's service portfolio into the electrical infrastructure domain.
• Deutsche Telekom AGcoreStrategic or Co-development PartnerBaum GmbH serves as a planning and construction partner for Deutsche Telekom AG, handling FTTC (Fiber to the Curb) expansion planning and FTTH (Fiber to the Home) new construction planning. Projects include network planning for telecommunications infrastructure across the Baden region, positioning the company as a trusted infrastructure partner for one of Germany's largest telecommunications providers.
• EW MittelbadencoreStrategic or Co-development PartnerEW Mittelbaden (energy utility) contracts Baum GmbH for infrastructure projects including the laying of 20kV power cables, representing a key utility customer relationship in the energy infrastructure sector.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• STRABAG SE: Major European construction group with significant German operations, including telecommunications infrastructure and civil engineering. Capable of bidding for the same municipal and utility tenders but at substantially larger scale.
• HOCHTIEF AG: One of Germany's largest construction companies with extensive civil engineering and infrastructure operations. Competes for large public and commercial tenders relevant to Baum GmbH's municipal and industrial segments.
• Axians (VINCI Energies): Telecom and digital infrastructure services subsidiary of VINCI Energies, active across Germany in fiber network construction, EV charging, and smart infrastructure. Part of a much larger European group but competes for the same Deutsche Telekom and municipal tender work.
• Leonhard Weiss GmbH & Co. KG: Large, family-owned German construction group operating across road, civil engineering, building construction, and network infrastructure. Overlaps with Baum GmbH across nearly all five service lines but at materially larger scale and national reach.

Direct peers

• Wilhelm Geiger GmbH & Co. KG: Mid-sized German construction group with road, civil engineering, and infrastructure services. Comparable to Baum GmbH in scale and multi-discipline positioning, though with different geographic emphasis.
• Vitronet GmbH: German fiber optic and broadband network construction and maintenance specialist serving telecom carriers and municipalities. Comparable to Baum GmbH's telecom infrastructure service line and 24/7 fault clearance offering.
• EUROPTEN Telecommunication GmbH: Germany-based fiber optic and telecommunications network construction firm specializing in FTTH/FTTC planning, splicing, and cable installation. Directly comparable to Baum GmbH's Netztechnik and Kabeleinbringarbeiten divisions serving telecom carriers.

Regional players

• Stuth GmbH & Co. KG: German civil engineering and infrastructure construction firm with similar regional contractor positioning. Comparable on Tiefbau and Straßenbau scope.
• Kutter GmbH & Co. KG: German road and civil construction contractor with comparable service mix in heavy civil and surfacing work. Similar regional contractor scale as Baum GmbH.
• Hoßfeld & Fischer Bauunternehmung GmbH & Co. KG: German construction firm with road, civil, and pipeline construction capabilities. Comparable as a regional Mittelstand contractor with overlapping Tiefbau and Straßenbau competencies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• Instagraminstagram.com/baum.bau.renchen
• LinkedInlinkedin.com/company/baum-hoch--tief--und-stra%C3%9Fenbau-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Baum Hoch-, Tief- Und Straßenbau GmbH