IAWD Members


Utility Members


Ujesjelles Kanalizime Tirane


Energie AG Bohemia GmbH
EVN Wasser GmbH
Wasserleitungsverband der Triestingtal- und Südbahngemeinden


The Water Works Association (WWA) supplies the municipalities in the Triesting valley and along the Southern Railway (Südbahn). The association comprises 29 incorporated municipalities, in which water supply is provided from the spring to the tap, i.e. to the final consumer. It is a public corporation with its headquarters in Bad Vöslau.The plenary session, the board and the chair are the institution of WWA.The members of the plenary session are the mayors of the incorporated municipalities.The board consists of eleven members. These are the chair, the deputy chair, and nine further members. They are elected  by the plenary session. The chair is the association´s public representative.

The internal Management is subject to director and deputy director.

The WWA is completely self-sufficient and does not receive any subsidies whatever. No dividends accrue to the municipalities, profits remain with the association and are set up as reserve funds for future investments. All operating expenditures, amortization charges, loan repayment, the build-up of reserves, etc., are exclusively financed out of revenues. These arise from water bills, access charges and fees for water metres.

The association supplies a total of about 37.000 households with water, which corresponds to some 130.000 individuals.


Badnerstraße 88, A-2540 Bad Vöslau
Phone: 02252/76273
Fax: 02252/76167-44
Mail: wlv@wlv-voeslau.at

Website: www.wlv-voeslau.at

CEO: Franz Gartner 

Founding year: 1927

Member of IAWD since: 1994

Water distribution (m³/year): ~11.500.000

Wasserleitungsverband Nördliches Burgenland

WLV-Logo Wasserleitungsverband Nördliches Burgenland

The Wasserleitungsverband Nördliches Burgenland is an association of local authorities which was founded in 1956. It is composed of 66 municipalities located in three districts (Eisenstadt, Mattersburg and Neusiedl).  Its main task is to sufficiently supply members with high quality water.

Via 63,000 taps, the WLV supplies drinking water for approximately 160,000 people and up to 200,000 people during the summer months. To accomplish this, 15,3 Million cubic metres of water are pumped out of our fourty-five wells and springs.  In order to deliver the water we need, 2,855 kilometres of water pipelines have been installed and maintained. Each of our customers consumes an average of 208 litres of water per day. Our most important water resource is situated in Neudörfl and consists of two wells which can provide 800 litres per second of the best quality drinking water.

The WLV not only provides drinking water, however.  It is also very much involved in issues such as ground water protection, prevention of ground water pollution and promoting an intact environment for the well-functioning supply of drinking water.

A total of almost 160 people are employed at both locations--the headquarters in Eisenstadt and the district office in Neusiedl am See.

In 2007 the sub-company WLV GmbH was established.


Ruster Straße 74,A-7000 Eisenstadt
Phone:  43 2682 609-0
Fax:  43 2682 609 276
Mail: post@wasserleitungsverband.at

Website: www.wasserleitungsverband.at

CEO: Ing. Gerhard Zapfl

Founding year: 1956

Member of IAWD since

Water distribution (m³/year): ~15.300.000

Bosnia and Herzegovina

Vodovod a.d. Banja Luka
A.D. Vodovod i kanalizacija Bijeljina

Logo i water

A.D. “Vodovod i kanalizacija” Bijeljina is the company of particular interest for the City of Bijeljina and which pursuant to the Law on Utility Services supply water for the citizen and perform collection of waste water. The company successfully performed its primary task – regular water supply of citizens and industry with water which is physically, chemically and microbiologically safe.


HajdukStanka No. 20, Republic of Srpska, Bosnia and Herzegovina
Phone: 381(0)55/226-460
Fax: 387(0)55/226-462
Mail: office@bnvodovod.com

Website: www.bnvodovod.com

CEO: Predrag Perković, B.Sc of Law

Founding year: 1961

Member of IAWD since: 2017

Water distribution (m³/year): ~6.100.000

JKP Vodovod i kanalizacija d.o.o. Tuzla


Sofiyska Voda JSC


We provide water and waste water services on the territory of the Municipality of Sofia. 

Our mission is to be a successful and top-class supplier of high-quality water supply and sewerage services to our clients. We are open, work in partnerships with society and we aim at constant improvement. 

We provide water for more than 1.400.000 people living in Sofia. Our activities include the operation, maintenance and management of hundreds of and thousands of meters of water mains and sewers. Our team consists of responsible and highly qualified employees focused on customers, who each year implement investments amounting to millions of levs for the city’s development and future. 

Sofiyska Voda AD was established in October 2000 by a 25-year Concession Agreement. Under it the Municipality of Sofia grants to the Company the operation and maintenance of Sofia’s WSS system. 

Our shareholding capital is divided between the Municipality of Sofia (22.9 %) and the French company Veolia (77.1 %). 

Sofiyska Voda is not the owner, but rather the Concessionaire of the WSS assets – which are public state property. All new facilities constructed with the Company’s funds are also the property of the City.


№1 Business Park Sofia St., Building 2A, Mladost 4 R.Q, 1766 Sofia, Bulgaria
Phone:  359 2 812 25 20
Fax:  359 2 974 45 14
Mail: communications@sofiyskavoda.bg

Website: www.sofiyskavoda.bg

CEO: Vassil Trenev

Founding year: 2000

Member of IAWD since: 2017

Water distribution (m³/year): ~153.500.000


Vodoopskrba i odvodnja d.o.o.

Czech Republic


Regensburger Energie- und Wasserversorgung AG Co KG (REWAG)



Greflingerstraße 22, 93055 Regensburg
Phone: 0941-601-0
Fax: 0941-601-2550
Mail: info@rewag.de

Website: www.rewag.de

CEO: Olaf Hermes

Founding year: 1976

Member of IAWD since:

Water distribution (m³/year): ~ 11.000.000

Stadtwerke Passau GmbH
Zweckverband Bodensee - Wasserversorgung
Zweckverband Wasserversorgung Fränkischer Wirtschaftsraum


Regional Water Company J.S.C. , Prishtina
RWC Hidrodrini J.S.C.


Regionalni Vodovod Crnogorsko Primorje


Compania Apa Brasov SA

Compania Apa Brașov SA is a trade joint-stock company with 100% of its capital owned by local authorities. Since 1991, it has been providing catchment, treatment, transportation, distribution and sewerage services to Brașov Municipality and a number of cities and localities from Brașov County. The company serves a population of aprox. 400.000 people and the growing industry of the area.

Catchment consists both from surface and underground sources and treatment is done in two specialized water treatment plants.

The water transportation and distribution system has a total length of about 1300 km, while the sewerage system measures about 800 km.

The resulted sludge and other similar waste from the treatment of wastewater is deposited in ecological warehouses.

The water quality and the wastewater charges are continuously monitored by accredited laboratories. Also, the company’s coverage area is constantly growing.


13, Vlad Țepes Street, Brașov, Romania
Phone: ( 4) 0268 408 602 
Fax: ( 4) 0 268 471 427
Mail: apabrasov@apabrasov.ro

Website: www.apabrasov.ro

CEO: Fătu Dorin

Founding year: 1991

Member of IAWD since: 2016

Water distribution (m³/year): ~17.000.000

S.C. Apaserve Satu Mare S.A.

S.C. Apaserv Satu Mare S.A. was established in 2004 and ensures the provision of water supply and wastewater collection/treatment services in Satu Mare County, Romania.

Our water company became a regional water operator since 2007, today we are providing services in municipalities of Satu Mare and Carei, the towns of Tășnad, Negrești-Oaș, Livada and Ardud, and 32 localities. We ensure drinking water in 38 localities and wastewater collection and treatment services in 17 localities.

Our company provides water services for 208.656 citizens and wastewater services for 141.244 citizens in 83.053 properties. This services are provided using a water network of 1.308 km (from which 268 km are adductions) and 613 km of sewage network.

In average we are selling 7,9 million m3 of water and having a total income of approximately 12,3 million Euros.


Gara Ferastrau street, no. 9/A, 440210 Satu Mare, Satu Mare County, Romania
Phone:  40 261 759 080
Fax:  40 261 721 056
Mail: secretariat@apaservsm.ro

Website: www.apaservsm.ro 

CEO:  Ioan Leitner

Founding year: 2004

Member of IAWD since: 2016

Water distribution (m³/year): ~7.850.000

SC Apa Nova Bucuresti SA


JKP Vodovod Beograd
Vodovod Subotica


Gemeinde St. Moritz - Wasserversorgung

Association members


Water Supply and Sewerage Association of Albania (SHUKALB)


The Water Supply and Sewerage Association of Albania (SHUKALB), which was established in 2000, is a professional, not-for-profit association of water supply and sewerage professionals, who wish to improve the management of the Water Supply and Sewerage Sector in Albania, making it efficient, sustainable and effective in accordance with the current laws and regulations in Albania.


Austrian Association for Gas and Water (OVGW)

OeVGW Logo

OVGW, the Austrian Association for Gas and Water, was founded in 1881 and has worked since then to promote the Austrian gas and water supply industries and associated sectors in all matters of scientific research, technology, business and legislation. OVGW is a non-profit organization based upon voluntary membership.

Of focal concern is ensuring that research and development in matters of gas and water supply remain at the cutting edge of science and technology.

Bosnia and Herzegovina

Association for Water and Environmental Protection Sector Aquasan Network in BiH (AQUASAN)

aquasan extended logo ENG

The Aquasan Network is established to improve the present situation in the Water and environmental protection (WEP) sector in Bosnia and Herzegovina and particularly to maximize the use of domestic institutional and human resources (information, knowledge, experiences and good practices). Aquasan Network members are experts from the WEP sector across B&H i.e. representatives of state ministries, relevant entity and cantonal ministries, entity water agencies, municipalities, research institutes, NGOs, public water supply and utility companies and representatives of private-sector including independent consultants.


Bulgarian Water Association (BWA)


The Bulgarian Water Association (BWA) is a non-profit organization that was established on December 1, 2005 in the city. Sofia. Its members are companies and individuals who have interests related to water and sanitation, including the quality and treatment of drinking, industrial, agricultural and domestic waste water; management, protection and use of water resources.


Water and Wastewater Works Association of Kosovo (SHUKOS)


The Water and Wastewater Works Association of Kosova was founded in 2001. The goal of the association is to act as a liaison between its members and to promote their common interests, advance fundamental issues of their general scope. SHUKOS's Office consists of the Managing Director, Deputy Director, Administrative Assistant and other officials and deals with the management and operation of the Association.


Montenegro Water Association (Udruženje ViK CG)

Republic of North Macedonia

Association of Public Service Providers of Republic of Macedonia (ADKOM)

The Association of Utility Service Providers of Macedonia is a non-profit organization of and for all public utilities in the country, which represents the interests of its members. ADKOM's mission is to represent the interests of public utilities in the country and to support and assist in the provision of reliable, affordable and quality services in the field of communal activity. ADKOM acts as a source of knowledge and experience in public utilities and ensures their mutual cooperation to preserve the environment and support local and regional economic development.


Romanian Water Association (ARA)

sigla ara

The Romanian Water Association (ARA) is based on three pillars: entrepreneurs, professionals, and suppliers. It facilitates and promotes cooperation between its members in order to identify new approaches to sustainable and cost-effective solutions to improve the quality of water resources management and water supply services, sewerage and wastewater treatment. ARA and its members are involved in promoting the sustainable management of water resources and holistically by integrating water supply services, sewerage and wastewater treatment in the broader concepts of lasting development and environmental protection.


Association of Water Technology and Sanitary Engineering (UTVSI)

The Association for Water Technology and Sanitary Engineering (UTVSI) is a scientific and professional association that gathers various profiles of experts, institutions and companies active in the field of water supply, sanitation and waste water and environmental protection in Serbia. With its mission to promote knowledge and experience in order to ensure safe and sustainable water supply, drainage and waste water and water protection and conservation of the environment, UTVSI contributes to strengthening the expertise and professional skills in the region for more than fifty years.

Association for Water Protection and Preservation in the South of Serbia (WASS)

The Association for water protection and preservation in the South of Serbia was to represent and stand for joined interests of the members, strengthening capacities, stimulation of the knowledge, idea and information exchange, promotion of the latest technical solutions, facilitating the access to the financial sources (national and international), creating and development of the mutual programs and projects.

The aims of the Association are: engagement of all public utility companies (from the water supply, sewage, waste water treatment and similar sectors), high education institutions, non-governmental institutions, industrial subjects and other interested professionals with the intention to use mutual activities for promoting protection and preservation of the water resources and environment in the South of Serbia.

Institutional members


E. Hawle Armaturenwerke GmbH
Hammerer System Messtechnik - Ingenieurberatung

Hammerer Logo
Consulting- services for IT-aided process management, monitoring and control systems.
Implementation and service of GIS-, ERP- and maintenance- systems PROFI.
Water loss strategies and condition aided rehabilitation concepts.
Assistance for digitization and modernisation of technical and economic processes.


Golgathaweg 1, 9020 Klagenfurt, Austria
Phone:  43 463 502906
Mail: max@hammerer.cc

Website: www.hammerer.cc

CEO: Max Hammerer

Founding year: 1986

Member of IAWD since:  Founder Member (1993)

Hydrophil GmbH
Siemens AG Österreich

siemens-logo-en-with ingenuity
In Austria Siemens is for over 135 years known for technical performance, quality, reliability, innovation and international experience. Siemens Austria is one of the country’s leading technology companies. 10.300 employees work for Siemens in Austria. The Sales revenue was in 20017 at around 3.4 billion euros. Siemens business activities focus on electrification, automation and digitalization.

Water is our vital and most valuable resource, it must be available in best quality and affordable for everyone. System planners, engineers and operators are challenged to keep the global increase in water consumption under control in the face of growing water shortages and the increasing salinity levels of freshwater resources. As experts in water applications, we offer powerful, innovative technical solutions to assist you in the areas of


  • Smart Water Grids
  • Advanced Automation
  • Process & Energy Optimization
  • Integrated Plant Life Cycle
  • Monitoring & TeleControl
  • Water Services


Siemensstraße 90, 1210 Wien


CEO: KR Ing. Wolfgang Hesoun

Founding year: 1879

Member of IAWD since: 2017

University of Natural Resources and Life Sciences


Wadata EOOD


Hydro-Comp Enterprises ltd.


Diehl Metering GesmbH


Diehl Metering companies have shaped the history of metering for more than 150 years. As a full-service provider, we offer our customers the complete process chain from measuring instruments to data management from a single source. The Vienna-based Diehl Metering GesmbH serves the markets in Austria, Eastern Europe as well as the so-called "stan" countries in Central Asia with Diehl Metering products and solutions. Furthermore, the company operates a test station for bulk water meters up to DN 1,000 mm in cooperation with the Vienna city authorities.


Hainburger Straße 33
1030 Wien
Tel.: 01 716 70 22

Website: www.diehl.com

CEO: Michael Hradecky

Founding year: 1993 as Elin Wasserwerkstechnik GmbH

Member of IAWD since: 1996

Barthauer Software GmbH