Gemeindeverband ARA Worblental

What Gemeindeverband ARA Worblental does

Gemeindeverband ARA Worblental is a public-law municipal association founded in 1960 and headquartered in Worblaufen, Canton of Bern, Switzerland. It operates the third-largest wastewater treatment plant in Canton Bern, serving 10 member municipalities (Arni, Biglen, Bolligen, Grosshöchstetten, Ittigen, Ostermundigen, Stettlen, Vechigen, Worb, and Zollikofen) across a 99 km² catchment area connected by approximately 40 km of transport network and 8 combined sewer overflow basins. The plant treats an average of 27,000 m³ of wastewater per day, achieving up to 99% purification in eight hours before discharge into the Aare river.

The facility's core technology stack combines a fully renewed activated sludge plant (Belebtschlammanlage) with a fixed-bed biology stage (Festbett-Biologie, in operation since 2007) and a new EMV-stage using on-site-generated ozone plus sand filtration, under construction with planned commissioning in autumn 2028 to remove organic micropollutants (pharmaceuticals, cosmetics, household chemicals, pesticides) as required by the Federal Water Protection Ordinance. The site also operates a biogas/CHP system producing 5,000 m³ of biogas per day (sufficient to power the plant plus 1,200 households) and a 214 kW peak photovoltaic installation commissioned in March 2023, with waste heat supplied to one of Switzerland's largest district heating networks operated by partner EBL. Notable industrial service recipients include Egger Bier, Emmi, and Fenaco.

Revenue is generated through fees charged to the 10 member municipalities (and Zollikofen) under the association's Organisationsreglement, governed by the Abgeordnetenversammlung, with industrial and commercial wastewater discharge providing additional volume. The association has 9 employees, is led by Verbandspräsident Stefan Hitz and Geschäftsführer Christoph Streun, won the Medaille d'eau 2023 from Verein Infrawatt for energy efficiency, and is currently executing a CHF 24.8 million EMV-Stufe capital project with groundbreaking in October 2025 and a separate feasibility-driven geographic expansion study with ARA Kiesental AG.

Name

Gemeindeverband ARA Worblental

Legal name

Gemeindeverband ARA Worblental

Website

https://ara-worblental.ch

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

1–10 employees

Short description

Gemeindeverband ARA Worblental is a Swiss municipal association operating the third-largest wastewater treatment plant in Canton Bern, serving 10 member municipalities and Zollikofen across a 99 km² catchment area with advanced biological and ozone filtration technology.

Ownership category

akta.pro rank

Product category

Municipal Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (221320), Water, Sewage and Other Systems (2213), Administration of Environmental Quality Programs (9241)

SIC

Electric, Gas & Sanitary Services (4900), Sanitary Services (4950)

akta.pro primary industry

Advanced/Nutrient Removal (BNR/ENR: N, P) (EUANADAC)

akta.pro secondary industries

Advanced Treatment & Purification Utilities (MF/UF, RO, AOP, UV) (EUANAGAD), Water Supply & Wastewater Utilities Administration (BPAIACAG)

Keywords

• Municipal wastewater treatment
• Water protection services
• Biogas energy production
• District heating supply
• Sewer transport network

Headquarters

HQ city

Worblaufen

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Technology or R&D, Personnel, Others

Revenue model

1. Municipal Wastewater Treatment Fees: The association generates revenue through fees charged to its 10 member municipalities and Zollikofen for wastewater transport and treatment services. The EMV-stage construction was approved with a total credit of 24.8 million CHF (including VAT). As a public municipal association, revenue is derived from member municipality contributions and treatment fees.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

The Gemeindeverband ARA Worblental operates a public wastewater treatment plant serving 10 member municipalities plus Zollikofen in the Canton of Bern, Switzerland. It treats approximately 27,000 m³ of wastewater per day through mechanical, biological (activated sludge and fixed-bed biology), and sludge treatment stages, achieving up to 99% purification in 8 hours. The association also manages a 40 km transport canal network with 8 combined sewer overflow basins across a 99 km² catchment area and produces renewable energy via a biogas/CHP system and 214 kW solar PV installation.

Product overview

Gemeindeverband ARA Worblental operates a comprehensive wastewater treatment infrastructure centered on its main treatment plant in Worblaufen, the third largest in Canton Bern. The core offering is the Abwasserreinigung (wastewater treatment) service that purifies 27,000 m³ of wastewater daily. The facility operates several interconnected modules: the main wastewater treatment process with mechanical, biological, and sludge treatment stages; the EMV-Stufe (Micro-Pollutant Elimination Stage) under construction using ozonation and filtration technology; the Wärmeverbund Worblental district heating network utilizing waste heat from biogas production; and a 214 kW photovoltaic system for renewable energy. Supporting infrastructure includes the Siebrechenanlage Vechigen sieve screen facility, a 40 km transport system, and 8 rainwater overflow basins serving a 99 km² catchment area. Educational services include free facility tours. The plant produces biogas for 1,200 households and achieves 99% wastewater purification within 8 hours.

Differentiator

Problem solved

Functional benefit

Products and services

• Abwasserreinigung (Wastewater Treatment) Core wastewater purification service treating an average of 27,000 m³ per day from the Worblental region and Zollikofen using multi-stage biological treatment, achieving up to 99% cleanliness within 8 hours. Service is provided to 10 member municipalities and Zollikofen.
• Abwassertransport (Wastewater Transport) Wastewater transport service via the approximately 40 km long Verbandskanalnetz (association canal network) and 8 combined sewer overflow basins serving a 99 km² catchment area in the Worblental region.
• Biogasproduktion (Biogas Production) Production of 5,000 m³ of biogas per day from wastewater sludge, sufficient to power the ARA itself and supply 1,200 additional households with renewable energy. Heat from CHP units is supplied to the Wärmeverbund Worblental district heating network.
• Wärmeverbund Worblental (District Heating Network) Supply of waste heat to the Wärmeverbund Worblental district heating network operated by partner EBL. The network is one of Switzerland's largest waste heat networks, fed by the ARA's biogas-fired combined heat and power plants.
• Führungen (Facility Tours)

Quantifiable outcome

• Up to 99% wastewater purification achieved in 8 hours
• +5 more outcomes

Named customers4 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

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• EBL (Genossenschaft Elektra Baselland)coreStrategic or Co-development Partner · 12 June 2025EBL constructed and operates the Wärmeverbund Worblental (district heating network), supplied with waste heat from the ARA Worblental's biogas-fired CHP units since the beginning of 2025. The Wärmeverbund Worblental is one of Switzerland's largest waste heat networks. EBL also manages the heating center (Wärmezentrale) on the ARA site, whose roof hosts a 214 kW PV installation. EBL also presented the Wärmeverbund project to NUBIS visitors.
• Amt für Wasser und Abfall Kanton Bern (AWA)coreOthersCantonal government authority responsible for water and waste management. AWA (represented by Reto Manser, Abteilungsleiter Siedlungswasserwirtschaft) provides regulatory oversight and participates in information events, discussing cantonal water strategy (Wasserstrategie 2040) and climate protection.
• Bundesamt für Umwelt (BAFU)coreOthersFederal Office for the Environment. Involved in the approval process for the EMV-stage project and provides federal co-funding for the micropollutant elimination facility.
• VSA (Verband Schweizer Abwasser- und Gewässerschutzfachleute)minorStrategic or Co-development PartnerSwiss Association of Water and Water Protection Professionals. Listed as a partner on the ARA Worblental website.
• Gemeinde MünsingenminorOthersListed as a contractual partner (Vertragspartner) on the ARA Worblental website.
• ARA Kiesental AGminorStrategic or Co-development PartnerA feasibility study conducted by ARA Kiesental AG found that Anschluss (connection) of the Oberes Kiesental and Grosshöchstetten catchment areas to ARA Worblental is the best option, given the canton's planned closure of those two smaller ARAs. Further cooperation details are under development.
• Verein NUBISminorOthersVerein NUBIS visited the ARA Worblental with approximately 30 members. The visit covered wastewater treatment and water protection topics, with EBL presenting the waste heat district heating project.

Scale indicators10 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Veolia Water Technologies & Solutions: Global water and wastewater technology and services provider serving municipal and industrial clients. Operates as a broad incumbent in the same space, offering overlapping capabilities (advanced treatment, micropollutant removal, sludge management) but does not specialize in Swiss municipal association operations.
• Xylem Inc. Global water technology company providing equipment, services, and solutions for water and wastewater treatment. Comparable as a major player in advanced wastewater treatment technology, though operating as a global equipment vendor rather than a local municipal operator.
• Suez Water Technologies & Solutions: Global environmental services and water management company operating wastewater treatment plants and offering advanced treatment technologies. Comparable as a broad incumbent in municipal wastewater services with similar technological capabilities (ozonation, biological treatment).

Direct peers

• Energie Wasser Bern (ewb): Municipal multi-utility owned by the City of Bern providing water, wastewater, energy, and telecom services. Comparable as a publicly owned utility operating integrated water/wastewater infrastructure in the same Canton of Bern region under similar Swiss regulatory oversight.
• ARA Kiesental AG: Smaller regional wastewater treatment association in the Canton of Bern. Already a strategic connection partner: a feasibility study determined that linking the Oberes Kiesental and Grosshöchstetten catchment areas to ARA Worblental is the best option, given planned closures.
• ARA Region Bern AG: Largest wastewater treatment plant in the Canton of Bern, treating wastewater from the City of Bern and surrounding municipalities. Directly comparable as a municipal ARA operating at similar scale within the same canton, with overlapping regulatory and operational mandates.
• IWB Industrielle Werke Basel: Municipal multi-utility in Basel providing electricity, heat, water, and wastewater services. Comparable as a publicly owned Swiss utility operating integrated water and wastewater infrastructure with renewable energy components, though serving a different canton.

Others

• EBL (Genossenschaft Elektra Baselland): Strategic partner operating the Wärmeverbund Worblental district heating network supplied with waste heat from ARA Worblental's biogas CHP units. Comparable as an ecosystem participant in the integrated energy/utilities value chain rather than a direct wastewater competitor.

Regional players

• Services Industriels de Genève (SIG): Multi-utility owned by the City of Geneva providing water, wastewater, energy, gas, and telecom. Comparable in business model (integrated municipal water/wastewater utility) but operating in a different Swiss canton and serving a much larger urban population.
• Stadtwerk Winterthur: Municipal multi-utility for the City of Winterthur providing water, wastewater, electricity, and district heating. Comparable in business model and integrated utility operations, though serving a different Swiss canton and urban population.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=TLkx0CX51b8
• LinkedInlinkedin.com/company/gemeindeverband-ara-worblental

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Gemeindeverband ARA Worblental