Atzwanger

What Atzwanger does

Atzwanger is an Italian family-owned plant engineering company headquartered in Bolzano-Bozen, South Tyrol, founded in 1932 by Luis Atzwanger as a heating and sanitary installation workshop. Over three generations it has expanded into a multi-disciplinary engineering firm operating across five business divisions: waste technologies (mechanical-biological treatment, solid waste incineration, anaerobic digestion), energy cogeneration systems (district heating, biomass/gas/biogas power plants, thermal energy storage), pool water treatment (pressure filters, ozone systems, ultrafiltration, electrolysis), drinking and wastewater treatment (membrane ultrafiltration, up-flow anaerobic sludge blanket systems, deammonification), and building HVAC technologies. The group employs approximately 250 people across five wholly-owned legal entities in Italy, Germany, Austria, and Switzerland, and executes projects across roughly a dozen countries including Slovenia, Croatia, Lithuania, Romania, Japan, and Russia.

The company operates a turnkey delivery model, providing single-source responsibility from concept and engineering through procurement, construction, commissioning, and ongoing service and maintenance supported by a 24/7 emergency hotline and remote Quick Support. Customers are enterprise and institutional clients — municipalities and utilities (wastewater plants, district heating), hospitals and healthcare facilities (Hospital Bolzano), hotels and resorts (Hotel Krallerhof, Das Gerstl Alpine Retreat), waterparks and thermal spas (Therme Bucharest, Therme Erding, Tropical Island Berlin, Säntispark, Olympiahalle Munich), industrial and food-processing operators (VOG PRODUCTS, Innio), and energy utilities (Alperia). Go-to-market is direct B2B enterprise field sales with multi-year project contracts; participation in Italian public tenders is enabled by SOA certification No. 31/00. Pricing is custom quote-based on project specifications.

Atzwanger monetizes through one-time turnkey plant installation projects (capex-heavy) and recurring service and maintenance contracts (professional services). It holds a comprehensive compliance stack — ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 3834-2 welding certification, FGAS fluorinated-gas certification, and UNI PDR 125 — which gates entry into regulated European public procurement. Leadership rests with the third generation of the Atzwanger family following a 2023 transition, with Thomas Atzwanger as President and Martin Atzwanger as CEO.

Name

Atzwanger

Legal name

Atzwanger SpA

Website

https://atzwanger.net

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

101–250 employees

Short description

Atzwanger is a family-owned Italian plant engineering firm, founded 1932 in Bolzano, delivering turnkey waste, energy, pool water, drinking/wastewater, and HVAC systems to municipalities, healthcare, hospitality, and industrial clients across Central Europe.

Ownership category

akta.pro rank

Product category

Plant Engineering Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Water Supply and Irrigation Systems (221310)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Balance-of-Plant (BOP) & Civil Works for Power Plants (EUAEAAAL)

akta.pro secondary industries

Chemical Tank Cleaning, Decontamination & Turnaround Waste Services (BPALAHAH), Chillers & Cooling Plant Equipment (IMAHAKAE), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Plant engineering services
• Waste treatment systems
• Energy cogeneration systems
• Water treatment technology
• Building HVAC systems

Headquarters

HQ city

Bolzano

HQ country

Italy

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Turnkey Plant Installation Projects: Custom plant engineering projects delivered as complete turnkey solutions from design through commissioning. Projects span waste management, energy, pool water, drinking/wastewater, and building HVAC systems.
2. Service and Maintenance Contracts: 24-hour emergency service and ongoing maintenance for installed plants. Includes remote quick support capabilities and on-site service teams.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Atzwanger designs, builds, commissions, and services turnkey industrial plants across five business divisions: Waste Technologies (incineration, mechanical-biological treatment, anaerobic digestion), Energy Cogeneration Systems (district heating, biomass/biogas power plants), Pool Water Treatment Technologies (for thermal spas, waterparks, swimming pools), Drinking and Wastewater Treatment Technology (with proprietary membrane ultrafiltration), and Building-HVAC Technologies. Projects are delivered as full turnkey solutions from concept through commissioning, backed by 24/7 service and maintenance.

Product overview

Atzwanger is an advanced plant engineering company organized into five core business divisions: Waste Technologies, Energy Cogeneration Systems, Pool Water Treatment Technologies, Drinking and Wastewater Treatment Technology, and Building-HVAC Technologies. The company operates as a unified platform providing comprehensive plant solutions, offering everything from conception to construction, commissioning, and ongoing service/maintenance. Projects span multiple countries including Italy, Germany, Austria, Switzerland, Japan, Russia, Lithuania, Croatia, Romania, and Slovenia. The company emphasizes turnkey installations and 24/7 customer support as key differentiators.

Differentiator

Problem solved

Functional benefit

Products and services

• Waste Technologies Comprehensive waste treatment solutions including mechanical and biological treatment plants, solid waste incineration plants, and anaerobic digestion facilities. Handles waste sorting, recycling, fermentation of organic waste to produce biogas, composting, and conversion to refuse-derived fuel (RDF). Sold to municipalities and waste management companies.
• Energy Cogeneration Systems Energy-efficient and sustainable plant solutions including power plants based on gas, biogas, biomass or waste, district heating networks, biomass-fired cogeneration plants, and thermal energy storage systems. Supports energy transition through cogeneration and trigeneration technologies. Sold to energy utilities and industrial clients.
• Pool Water Treatment Technologies High-tech water treatment solutions for thermal spas, waterparks, and swimming pools. Offerings include pressure filters (steel and GRP), vacuum filters (plastic), ozone systems, cathodic protection, electrolysis systems, ultrafiltration, and control technology/automation. Sold to hotels, resorts, waterparks, and thermal spa operators.
• Drinking and Wastewater Treatment Technology Comprehensive water treatment solutions including drinking water treatment (filtration, deacidification, disinfection) and wastewater treatment (with proprietary ultrafiltration membrane technology and up-flow anaerobic sludge blanket systems). Sold to municipalities and industrial clients.
• Building-HVAC Technologies Building technology solutions including heating, cooling, ventilation, and sanitary systems for hospitals, industrial facilities, office buildings, and hotels. Focus on life cycle costs with innovative plant engineering. Sold to healthcare, commercial real estate, and industrial facility operators.
• Turnkey Installations and Service Comprehensive service offering from individual consultation and planning to organization, implementation, and monitoring. Includes 24/7 emergency service, maintenance contracts, and Quick Support (remote assistance via TeamViewer). Sold to owners of plants across all five technology divisions.

Quantifiable outcome

• Handles 21,000 kg COD/day with biogas production of 220 m³/h (560 kWel) at WWTP Branzoll
• +2 more outcomes

Named customers14 records

Segments8 records

Ideal customer profiles5 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.

• PLASTICFREE Project ConsortiumminorStrategic or Co-development PartnerATZWANGER is a partner in the PLASTICFREE project dedicated to identifying and reducing micro and nanoplastic pollution. The project addresses emerging pollutants recognized internationally, with protocols for analysis still being standardized.

Scale indicators6 records

Recent moves12 records

Expansion highlights5 records

Direct peers

• BWT AG: Austrian-headquartered water-treatment technology company serving municipal, hospitality, industrial, and pool/spa customers across Europe. Directly comparable on water and pool-water treatment technologies, Central European footprint, and B2B turnkey delivery model.
• Hitachi Zosen Inova: Swiss-headquartered (operates from Zurich area) EPC specialist in waste-to-energy and anaerobic digestion plants across Europe and globally. Direct competitor in Atzwanger's waste-incineration and MBT/biogas project lines.
• Streicher Group: German mid-sized EPC contractor covering plant construction, pipelines, and environmental technology, with roots in southern Germany. Comparable family-era heritage, regional scale, and focus on turnkey industrial and environmental plant delivery.

Broad incumbents

• GEA Group: German process-engineering group with a separation and wastewater-technology business serving food, dairy, and industrial customers. Comparable on process-plant EPC delivery and on wastewater treatment know-how, especially for industrial clients like VOG.
• ANDRITZ Group: Austrian global plant-engineering group with a dedicated Environment & Energy division covering waste-to-energy, biomass, and water/sludge treatment. Much larger than Atzwanger but operates in the same EPC and environmental-technology categories and shares the Central European base.
• Bilfinger SE: German industrial services and EPC company with strong exposure to energy, environmental, and process-plant construction and maintenance. Overlaps with Atzwanger's energy-cogeneration, waste, and water EPC work and is a reference for the larger-EPC competitive set.
• Veolia Water Technologies: Global environmental-services group with deep municipal and industrial water and wastewater treatment EPC capabilities. Overlaps with Atzwanger's drinking and wastewater treatment division at both the technology and project-delivery level.
• SUEZ Water Technologies & Solutions: French-headquartered environmental services and water-technology group active across municipal water, wastewater and waste treatment in Europe. Competes with Atzwanger for municipal tenders in Italy and Central Europe and offers comparable turnkey plant solutions.

Emerging players

• Viessmann: German family-owned HVAC, heating, and refrigeration systems provider. Comparable family-owned, DACH-based identity and overlap with Atzwanger's Building-HVAC division in heating, cooling and sanitary installations for hospitals, hotels and commercial buildings.

Others

• MAN Energy Solutions: German OEM of large gas engines, turbines, and complete power-plant packages including CHP/biogas. Atzwanger's Innio/CHP Cottbus project demonstrates it integrates such engines into cogeneration plants, making MAN a key technology supplier and adjacent peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@atzwanger
• LinkedInlinkedin.com/company/atzwanger
• Instagraminstagram.com/atzwanger

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries4 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 Atzwanger