Zénith Union d'Entreprises

What Zénith Union d'Entreprises does

Zénith Union d'Entreprises du BTP is a confederation of 10 independent small and medium enterprises operating in the construction and public works (BTP/TP) sector in the Grand Est region of France, headquartered in Bouxwiller, Alsace. The union groups complementary specialties under one strategic umbrella: Adam TP, Denni Legoll, Alter, and Visconti (travaux publics, terrassement, voirie, assainissement, eau potable); Schreiber (gros œuvre, structural and civil engineering); Hanau and Gaïal (désamiantage, déconstruction, déplombage); Céterra (ingénierie environnementale, soil and groundwater decontamination, material recycling); Chauffage JUNG (heating installation); and Edifize (IT/digital solutions for BTP operations). Member companies are largely family firms with histories ranging from the late 1940s to over 100 years, operating autonomously while sharing know-how, procurement scale, and a Rhineland-style family capitalism governance model.

The union's revenue model is project-based B2B services, generated through competitive public tenders (marchés publics) issued by collectivités and municipalities, and direct private contracts with developers, architectes, and maîtres d'œuvre. Services are priced per-project (no disclosed standard pricing) and span one-time construction contracts as well as recurring maintenance streams in heating and environmental remediation. The union has no public listing, no disclosed external investors, and no central headquarters staff beyond an executive office — the entity functions as a coordination and strategic layer over autonomous member companies.

The union's technology stack is conventional BTP (earthworks, networks, structural work, demolition, asbestos remediation, soil decontamination), augmented by environmental engineering capabilities such as in-situ soil treatment, material recycling, and circular-economy practices. Notable innovation activity includes the 2024 deployment of a fleet of 5 hydrogen bicycles from Pragma Industries across member-company sites, making Zénith the first French PME to offer hydrogen-powered employee mobility, with plans for an in-house green hydrogen production station via electrolysis. The union's stated combined workforce exceeds 500 collaborators and combined revenue is cited at €100M on its corporate "qui-sommes-nous" page.

Name

Zénith Union d'Entreprises

Legal name

Zénith – Union d'entreprises

Website

https://ue-zenith.eu

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Zénith Union d'Entreprises is a confederation of 10 independent French BTP SMEs in the Grand Est region, offering integrated public works, structural, demolition, environmental remediation, and heating services to public and private clients.

Ownership category

akta.pro rank

Product category

Construction and Public Works Services

NAICS

Management of Companies and Enterprises (55), Waste Management and Remediation Services (562)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA)

akta.pro secondary industry

Circular Economy & Resource Efficiency (BPADALAM)

Keywords

• Public works construction
• Earthmoving services
• Asbestos removal
• Soil remediation
• Heating installation

Headquarters

HQ city

Bouxwiller

HQ country

France

HQ region

Europe

Offices5 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. Public works and construction contracts: Member companies generate revenue through public tenders (marchés publics) and private construction contracts, including terrassement, voirie, assainissement, eau potable, génie civil, and gros œuvre projects throughout Alsace and the Grand Est region.
2. Specialized demolition and decontamination services: Revenue from désamiantage (asbestos removal), déplombage (lead abatement), déconstruction/démolition, and soil depollution services, including treatment and recycling of materials.
3. Heating installation and services: JUNG company provides heating installation services (fioul, gaz, biométhane, solaire, pellets, heat pumps) for individual and collective buildings, generating revenue from installation and after-sales service.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Zénith Union d'Entreprises du BTP is a confederation of 10 independent small and medium enterprises (PME) delivering construction and public works services across the Grand Est region of France. Its member companies specialize in terrassement, voirie, assainissement, eau potable, gros œuvre, désamiantage, déconstruction, ingénierie environnementale (dépollution des sols et nappes), recyclage des matériaux, and chauffage installation. The union offers integrated multi-specialty solutions to public and private sector clients while preserving the entrepreneurial autonomy of each member company.

Product overview

Zénith Union d'Entreprises is a union of 10 independent small and medium enterprises in the construction and public works sector (BTP/Travaux Publics) operating across Alsace and the Grand Est region of France. The union comprises member companies specializing in distinct but complementary services: Adam TP, Denni Legoll, Alter, and Visconti (public works/earthwork/road construction/sanitation/water networks); Schreiber (structural work/gros œuvre); Hanau and Gaïal (asbestos removal and deconstruction); Céterra (environmental engineering/soil decontamination); Chauffage JUNG (heating systems); and Edifize (IT solutions). Collectively, the union employs over 500 collaborators and generates approximately 100M € in revenue. The member companies operate independently while benefiting from the union's collaborative model and shared values of Rhinish family capitalism.

Differentiator

Problem solved

Functional benefit

Products and services

• Travaux publics (Terrassement, Voirie, Assainissement, Eau potable) Earthwork and public works services covering terrassement, voirie, assainissement, eau potable, génie civil, and dépollution, delivered to public sector clients, private developers, architects, and maîtres d'œuvre across the Grand Est region.
• Gros Œuvre (Structural and civil engineering work) Structural work services including building foundations, collective and public building construction, industrial civil engineering, renovation, and rehabilitation, delivered to public and private clients in the Grand Est region.
• Désamiantage & Déconstruction Asbestos removal (désamiantage), lead abatement (déplombage), deconstruction, demolition, curage, and dismantling services, including skip rental, for occupied sites and remediation projects across the Grand Est region.
• Ingénierie environnementale (Soil and groundwater remediation) Environmental engineering services including soil and groundwater decontamination (dépollution des sols et nappes), on-site and in-situ treatment, off-site impacted soil management, and circular-economy material recycling for public and private sector clients.
• Chauffage (Heating installation) Installation and after-sales service for individual and collective heating systems using fioul, gaz, biométhane, solaire, wood pellets, and heat pumps, for residential, collective, and public buildings.

Quantifiable outcome

• First PME in France to deploy hydrogen bicycles for employee mobility, demonstrating environmental leadership and innovation capacity

Named customers2 records

Segments2 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

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Razel-Bec (Fayat Group): French public works specialist within the Fayat Group, focused on earthworks, civil engineering, and infrastructure projects. Comparable in scope to Zénith's TP subsidiaries (Adam, Alter, Visconti).
• Spie Batignolles: Independent French construction group covering public works, civil engineering, building, and environmental services. Comparable to Zénith in multi-specialty construction scope and in being a privately controlled, founder-influenced group operating across France.
• Demcy: French independent group specializing in demolition, deconstruction, asbestos removal, and site remediation. Directly comparable to Hanau and Gaïal's désamiantage and déconstruction services within Zénith's union.
• NGE (Nouvelles Générations d'Entrepreneurs): French multi-specialty construction and civil engineering group operating across TP, earthworks, networks, environmental remediation, and demolition. Closest structural analog to Zénith's union of multi-specialty contractors, though at significantly larger scale and geographic footprint.

Broad incumbents

• Colas: Bouygues subsidiary and one of the world's largest road construction and maintenance groups. Directly competes with Zénith's voirie and terrassement activities, particularly for public-sector road tenders in Alsace/Grand Est.
• Fayat Entreprises TP: Public works division of the Fayat Group, a major family-controlled French construction conglomerate. Competes with Zénith's union model but as a fully integrated private group rather than a confederation of autonomous SMEs.
• Eurovia (VINCI): VINCI's road construction, urban development, and rail infrastructure subsidiary. Overlaps with Zénith's voirie, terrassement, and assainissement revenues, especially for municipal infrastructure tenders.
• VINCI Construction: Global construction subsidiary of VINCI, with extensive French public works and earthworks capabilities. Competes with Zénith for regional tenders but operates at national/international scale with integrated concessions business.
• Eiffage Travaux Publics: Public works arm of Eiffage Group, one of France's largest construction concessions-and-build majors. Directly overlaps Zénith's earthworks, road, and infrastructure offering but at vastly larger scale and as part of a broader concessions/energy portfolio.

Emerging players

• Séché Environnement: French environmental services group specializing in hazardous and non-hazardous waste treatment, soil remediation, and circular-economy industrial services. Comparable to Céterra's soil/groundwater decontamination and material recycling activities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/zenith-union

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries10 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 Zénith Union d'Entreprises