ARA Pustertal

What ARA Pustertal does

ARA Pustertal AG is a publicly-owned wastewater treatment utility headquartered in St. Lorenzen, South Tyrol, Italy. Founded in 2016 with 100% public capital, the company is owned by the 28 municipalities of the Pustertal Valley and operates under mandate from the Pustertal Wastewater Consortium (Abwasserkonsortium Pustertal). It runs five sewage treatment plants — ARA Tobl (St. Lorenzen), ARA Innichen-Sexten (San Candido), ARA Wasserfeld (Welsberg), ARA Sompunt (Badia), and ARA Unteres Pustertal (Mühlbach) — plus the main collector sewer system and a centralized sludge drying and incineration facility (TRA+TVA) at Tobl. The infrastructure processes on the order of 13.2 million m³ of wastewater and roughly 10,529 tons of pollutants per year.

The company's technology stack centers on thermal sludge hydrolysis, sludge drying and incineration with phosphorus-rich ash (20% P2O5), and biogas combined heat and power (CHP) units that produced 7.763 GWh of climate-neutral energy in 2024, covering 100% of heat and 81.7% of electrical requirements. A digital real-time assistance system using artificial neural networks has been deployed at ARA Innichen/Sexten since April 2022, and research collaborations with the ICAWER and OptDigest consortia target further energy and process optimization.

ARA Pustertal generates revenue through municipal wastewater treatment fees billed to the Pustertal Wastewater Consortium on behalf of its 28 member municipalities. The business operates as a non-profit-oriented public utility managed to private-company standards, with no external shareholders, no venture capital, and no disclosed pricing. Service lines include wastewater treatment, sewage sludge recycling, sewer service and maintenance, and disposal services for small sewage treatment plants. Distribution is direct to the consortium, and public engagement is handled through social media, plant tours, school visits, and annual management reports.

Name

ARA Pustertal

Legal name

ARA Pustertal AG

Website

https://arapustertal.it

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

ARA Pustertal AG operates five wastewater treatment plants, the main collector, and a sludge drying and incineration facility in South Tyrol's Pustertal Valley, providing municipal wastewater services to 28 publicly-owned municipalities via the Pustertal Wastewater Consortium.

Ownership category

akta.pro rank

Product category

Municipal Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (221320), Water, Sewage and Other Systems (2213), Utilities (221), Waste Treatment and Disposal (56221), Solid Waste Combustors and Incinerators (562213)

SIC

Sanitary Services (4950), Electric, Gas & Sanitary Services (4900), Refuse Systems (4953)

akta.pro primary industry

Anaerobic Digestion (AD) & Biogas/RNG Production (Organics Feedstocks) (BPALAEAC)

akta.pro secondary industries

Sludge/Biosolids Handling & Treatment Facilities Construction (IMAFAGAJ), Subtitle: Waste Treatment & Disposal — Sub-industries (L4) (EUAIACAA), Municipal Wastewater Collection (Sewer Networks) (BPALAMAA), Anaerobic Digestion (Wet/Dry AD) & Biogas Production (EUAIAEAD)

Keywords

• Wastewater treatment
• Sewage sludge disposal
• Municipal water utilities
• Biogas energy generation
• Sewer network management

Headquarters

HQ city

Bozen

HQ country

Italy

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D

Revenue model

1. Wastewater Treatment Services: ARA Pustertal operates as a publicly-owned utility company (100% public capital) providing essential municipal wastewater treatment services. The company is owned by 28 Pustertal municipalities and operates on a non-profit basis while following private company standards. Revenue comes from municipal wastewater treatment fees and service charges.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ARA Pustertal AG operates five sewage treatment plants, the main collector, and a sewage sludge drying and incineration plant on behalf of the Pustertal Wastewater Consortium for the 28 municipalities of the Pustertal Valley in South Tyrol, Italy. The company treats municipal wastewater, recycles sewage sludge via thermal drying and incineration, maintains the regional sewer network, and produces climate-neutral heat and electricity from biogas through combined heat and power (CHP) units at its plants.

Product overview

ARA Pustertal AG operates a unified public wastewater treatment infrastructure across the Pustertal Valley in South Tyrol, Italy. The company's core portfolio consists of five sewage treatment plants (ARA Tobl, ARA Innichen-Sexten, ARA Wasserfeld, ARA Sompunt, and ARA Unteres Pustertal) plus the main collector sewer system and a sewage sludge drying and incineration plant (TRA+TVA) at Tobl. Services include wastewater treatment, sewage sludge recycling via thermal utilization, sewer service/maintenance, and disposal of small sewage treatment plants. The company also generates renewable energy through biogas CHP units at its treatment plants.

Differentiator

Problem solved

Functional benefit

Products and services

• Wastewater treatment Operation and management of five sewage treatment plants (ARA Tobl, ARA Innichen-Sexten, ARA Wasserfeld, ARA Sompunt, and ARA Unteres Pustertal) that treat wastewater from the entire Pustertal Valley and ensure clean discharge into local rivers. Service is provided to municipalities on behalf of the Pustertal Wastewater Consortium.
• Waste recycling (sewage sludge disposal) Thermal sludge drying and incineration at the ARA Tobl plant, processing sewage sludge from all five treatment plants and recovering energy from sludge. The dried sludge ash has a 20% P2O5 phosphorus content, supporting research on phosphorus recovery.
• Sewer service Maintenance and operation of the main collector sewer system across the Pustertal Valley, including repairs and pipe-ramming projects for damaged sections such as the 42.5-meter drill-and-drive installation at the Pragser Kanal.
• Disposal of small sewage treatment plants Collection and disposal services for small sewage treatment plants (Kleinkläranlagen) across the Pustertal region, providing routine emptying and waste handling for decentralized systems.

Quantifiable outcome

• 10,529 tons of pollutant load removed from wastewater annually
• +5 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability1 record

Feature5 records

Partnerships

Six partnerships are on record, tiered core, minor and strategic.

• Pustertal Wastewater Consortium (Abwasserkonsortium Pustertal)coreOthersARA Pustertal operates on behalf of the Pustertal Wastewater Consortium, managing all five sewage treatment plants, the main collector, and sewage sludge drying/incineration facilities for the consortium's member municipalities.
• Agrinord SrlminorImplementation/ SI/ Consulting PartnerAgrinord operates a composting plant in Isola della Scala that processes biowaste and also handles South Tyrolean sewage sludge that cannot be incinerated at ARA Tobl due to capacity constraints.
• Dabringer RecyclingminorOthersDabringer Recycling handles transportation services for ARA Pustertal and arranged visits to partner facilities.
• ICAWER Project Partners (University of Innsbruck, Syneco, ARA Consult GmbH, BioTreat GmbH, EcoCenter, Abwasserverband Zirl und Umgebung)strategicStrategic or Co-development PartnerICAWER (Interregional Concept for Advanced Wastewater Energy Reclamation) is an Interreg V-A Italia-Österreich project focused on making wastewater treatment plants more energy efficient. The project analyzes plant performance, identifies energy savings potential, and implements optimization measures.
• Atzwanger AG, Stuga KG, Inewa Consulting GmbHminorStrategic or Co-development PartnerOptDigest research project partners investigating causes and solutions for foam problems in fermenters that reduce biogas production and increase maintenance costs at ARA Pustertal plants.
• Austrian Wastewater Treatment Neighbors (KAN - Österreichische Kläranlagennachbarschaften)minorOthersProfessional exchange association of wastewater treatment plants that organizes biannual conferences, shares technical expertise, and provides training. ARA Pustertal has been a member for over 30 years.

Scale indicators10 records

Recent moves3 records

Expansion highlights4 records

Regional players

• Egna Glurns Kläranlage (Egna-Glurnes Depurazione): South Tyrolean/Trentino-Alto Adige regional wastewater utility operators in adjacent valleys. Comparable as a publicly-owned Alpine municipal wastewater treatment operator serving a similar geography, though smaller in scale.
• Acque Veronesi: Acque Veronesi operates integrated water and wastewater services in the Verona province. Comparable in scale and structure as a regional Italian publicly-controlled utility, with similar municipal ownership and treatment plant operations.

Others

• Viveracqua Hydrocontrol: Viveracqua is a consortium of Italian publicly-owned water utilities. Comparable as a coordinating governance body for municipal wastewater treatment operators like ARA Pustertal, though not a direct competitor.
• Aqua Austria / ÖWAV (Austrian Wastewater Association): ÖWAV and its KAN (Kläranlagennachbarschaften) program coordinate Austrian municipal WWTP knowledge exchange — ARA Pustertal is a 30+ year member. Comparable as a sector coordination and best-practice body for small-to-mid municipal wastewater operators across the Alpine region.

Broad incumbents

• SMAT (Società Metropolitana Acque Torino): SMAT operates integrated water and wastewater services for the Turin metropolitan area. Closely comparable as a publicly-owned Italian wastewater utility running a network of treatment plants with a consortium-style governance model, though serving a much larger population.
• Hera Group: Hera is a multi-utility headquartered in Bologna operating water, wastewater, and environmental services across Emilia-Romagna and beyond. Comparable business model combining wastewater treatment with energy recovery and waste-to-energy, though listed and geographically broader than ARA Pustertal.
• Publiacqua: Publiacqua provides integrated water services across Tuscany with significant wastewater treatment operations. Comparable as a publicly-influenced Italian utility, though distributed across multiple municipalities rather than concentrated in a single valley.
• ACEA Group: ACEA is one of Italy's largest publicly listed multi-utility groups with a major water and wastewater services division serving Rome and Lazio. Directly comparable as a publicly-influenced Italian wastewater utility operator, though at materially larger scale and listed on the stock exchange.
• Suez Water Italia (Veolia Italia): Veolia Italia operates large-scale municipal water and wastewater treatment contracts across Italy. Comparable as a regulated WWTP operator serving municipalities with a similar municipal-utility mandate, though operating at much greater scale and across multiple regions.
• A2A Ciclo Idrico: A2A's water division operates municipal wastewater services primarily in Lombardy. Comparable Italian utility operator of wastewater infrastructure with energy-recovery elements, embedded in a larger multi-utility group.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/ARAPustertalAG
• LinkedInlinkedin.com/company/arapustertal
• Instagraminstagram.com/arapustertalag

Compliance3 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 ARA Pustertal