The sewage treatment plant construction industry in DACH focuses on building and upgrading facilities that treat wastewater before it's released back into the environment. Companies in this sector vary from large multinationals to innovative startups, offering services ranging from engineering and project management to specialized technology for water treatment processes. As environmental regulations tighten and public awareness of water sustainability grows, this industry is moving towards more sophisticated solutions like advanced filtration techniques and energy-efficient plants. Key trends include increasing automation and digitalization, driven by the need for efficient, cost-effective water management.


The list includes a mix of corporate giants and venture capital firms, headquartered in major cities like Munich, Berlin, and Vienna. Ranging in size from small teams to huge organizations with over 10,000 employees, these investors have been active in 2024 with varying deal counts. Corporate investors such as Siemens and BASF show strong commitment through multiple acquisitions, while younger firms like Extantia focus on groundbreaking climate technologies. Each investor showcases unique approaches to supporting the sewage treatment sector.


Top 10 Sewage Treatment Plant Construction Investors in DACH


1. Siemens

  • Website: siemens.com
  • Type: Corporate
  • Headquarters: Munich, Bavaria, Germany
  • Founded year: 1847
  • Headcount: 10001+
  • Number of deals in 2024: 11
  • LinkedIn: siemens

Siemens AG, founded in 1847 and headquartered in Munich, Bavaria, Germany, is a leading technology conglomerate specializing in industrial automation, energy solutions, rail transport, and health technology. With a workforce of approximately 320,000 employees, Siemens generates significant revenue and operates globally. Notably, Siemens has made strategic acquisitions to enhance its capabilities in the water and wastewater treatment sector. In 2012, Siemens acquired Cambridge Water Technology, which significantly bolstered its municipal wastewater business by improving solids removal and contaminant performance. This acquisition reflects Siemens' commitment to enhancing efficiency and sustainability in water management. Additionally, Siemens' recent acquisition of Bunt Planet in December 2023 further indicates its ongoing investment in technologies that may support sewage treatment and related infrastructure.


2. wienerberger

  • Website: wienerberger.com
  • Type: Corporate
  • Headquarters: Vienna, Vienna, Austria
  • Founded year: 1819
  • Headcount: 10001+
  • Number of deals in 2024: 2
  • LinkedIn: wienerberger

Wienerberger AG, founded in 1819 and headquartered in Vienna, Austria, is a leading construction materials manufacturer specializing in bricks, roof tiles, and plastic pipes. With a workforce of over 10,000 employees, the company serves construction businesses and contractors by providing innovative and sustainable building solutions. In recent years, Wienerberger has made significant acquisitions to strengthen its position in the water management sector. Notably, the acquisition of GrainPlastics in June 2024 aims to enhance sustainable water management and support the company's sustainability goals by increasing the use of recycled materials. Additionally, the acquisition of FloPlast in July 2021 further broadens their product portfolio in water management solutions. These strategic moves demonstrate Wienerberger's commitment to enhancing the quality and efficiency of construction projects, particularly in areas related to water management and sewage treatment.


3. Basf

  • Website: basf.com
  • Type: Corporate
  • Headquarters: Ludwigshafen, Rhineland-Palatinate, Germany
  • Founded year: 1865
  • Headcount: 10001+
  • Number of deals in 2024: 1
  • LinkedIn: basf

BASF SE is a multinational chemical manufacturer based in Ludwigshafen, Germany, founded in 1865. The company operates across various industries, including agriculture, automotive, and construction, with a strong emphasis on innovation and sustainability. In 2011, BASF acquired inge watertechnologies AG, a Germany-based ultrafiltration specialist, which allowed them to strengthen their position in the water treatment market. This acquisition is particularly relevant to sewage treatment as ultrafiltration is a critical technology used in the treatment of wastewater. BASF's strategic focus on enhancing operational efficiency and addressing environmental challenges further supports their involvement in sectors related to sewage treatment plant construction.


4. Extantia

  • Website: extantia.com
  • Type: Venture Capital
  • Headquarters: Berlin, Berlin, Germany
  • Founded year: 2020
  • Headcount: 11-50
  • Number of deals in 2024: 6
  • LinkedIn: beyond-black-capital

Extantia is a Berlin-based venture capital firm founded in 2020, specializing in climate technology and sustainability. The firm is dedicated to investing in innovative solutions aimed at carbon reduction and offers consulting services on ESG practices. Extantia supports entrepreneurs and investors in the climate tech sector, facilitating the transition to a sustainable economy. Notably, Extantia has participated in significant funding rounds for companies like Reverion, which is developing biogas power plants, and Wase, which focuses on electro-methanogenic reactor technology. These investments highlight Extantia's engagement in sectors that intersect with sewage treatment and waste management, reinforcing its role as a relevant player in the climate tech landscape.


5. Brenntag

  • Website: brenntag.com
  • Type: Corporate
  • Headquarters: Essen, North Rhine-Westphalia, Germany
  • Founded year: 1874
  • Headcount: 10001+
  • Number of deals in 2024: 8
  • LinkedIn: brenntag

Brenntag SE is a leading chemical distributor based in Essen, North Rhine-Westphalia, Germany, with a history dating back to 1874. The company connects chemical manufacturers and users, offering a wide range of specialty and industrial chemicals along with value-added services. Brenntag serves approximately 195,000 customers across various industries, including food, pharmaceuticals, and oil & gas. Notably, in February 2023, Brenntag acquired a water treatment facility in Pomona, South Africa, aimed at enhancing its operations and capabilities in the water treatment sector. This acquisition is significant as it aligns with the company's strategy to improve blending and storage capacities for water treatment customers, which is directly relevant to sewage treatment. Additionally, Brenntag's ongoing expansion through acquisitions, such as the chemical distribution business of Desbro Group in Kenya and the Industrial Chemicals Corporation in Colorado, further demonstrates their commitment to enhancing their service capabilities in various regions, including those involved in water and sewage treatment.


6. Georg Fischer

  • Website: georgfischer.com
  • Type: Corporate
  • Headquarters: Schaffhausen, Schaffhausen, Switzerland
  • Founded year: 1802
  • Headcount: 10001+
  • LinkedIn: georg-fischer

Georg Fischer Ltd, founded in 1802 and based in Schaffhausen, Switzerland, is a corporate investor specializing in innovative manufacturing solutions across various sectors, including piping systems, building flow solutions, casting, and machining. The company serves a diverse clientele, including municipalities, which positions them well within the sewage treatment plant construction industry. Notable transactions include the acquisition of Alfa Plastics Inc., transforming it into Georg Fischer Piping Systems Ltd, which enhances their role in managing piping systems activities in Canada. Additionally, their acquisition of Central Plastics and the investment in Oxford Flow, which focuses on product development in fluid management, further demonstrate their commitment to advancing technologies relevant to sewage treatment. These activities highlight Georg Fischer's strategic focus on efficiency and sustainability, aligning with the needs of sewage treatment infrastructure.


7. Sulzer

  • Website: sulzer.com
  • Type: Corporate
  • Headquarters: Winterthur, Zurich, Switzerland
  • Founded year: 1834
  • Headcount: 10001+
  • LinkedIn: sulzer

Sulzer Ltd. is an industrial engineering and manufacturing company based in Winterthur, Zurich, Switzerland, founded in 1834. The company specializes in fluid engineering solutions and provides a wide range of products and services, including pumps, compressors, and aeration systems. Sulzer serves various sectors, including water treatment, oil and gas, and power generation, with a strong focus on innovation and sustainability. Notably, Sulzer has made significant acquisitions in the wastewater treatment space, including the purchase of JWC Environmental, LLC for $215 million, aimed at enhancing their wastewater treatment offerings and expanding market presence. Additionally, their acquisition of Nordic Water Products for SEK 1.2 billion (€119 million) further emphasizes their commitment to the water treatment industry, particularly in the context of sewage treatment plant construction.


8. REMONDIS Gruppe


REMONDIS SE & Co. KG is a corporate investor based in Germany, founded in 1934, specializing in recycling and water management services. The company provides essential solutions for municipalities, industries, and private households, focusing on waste management, water supply, and wastewater treatment. With a commitment to sustainability, REMONDIS operates numerous facilities worldwide to ensure efficient resource management and environmental protection. Recently, they completed the rebranding of their Melbourne acquisitions, including Eastern Liquid Waste Services, which enhances their capabilities in liquid waste management. Additionally, their acquisition of SFW Energia Sp. z o.o. aims to bolster their environmentally friendly heat and power production, further indicating their commitment to sustainable practices in water management. These transactions highlight REMONDIS's active role in sectors related to sewage treatment and wastewater management.


9. GCP Gamma Capital Partners - The VenturePreneurs - The MezzoPreneurs


GCP Gamma Capital Partners - The VenturePreneurs - The MezzoPreneurs is a venture capital firm based in Vienna, Austria, founded in 2002. The firm specializes in providing investment and equity consulting services, focusing on dynamic technology and growth companies across Austria, Germany, Switzerland, and Central and Eastern Europe. Notably, GCP Gamma Capital Partners has participated in significant transactions within the wastewater treatment sector, including a $9.1 million Series C financing for Organica Water, a company dedicated to providing innovative wastewater treatment solutions. They also participated in a subsequent Series D round for Organica Water, which aimed to strengthen the company's balance sheet and enhance its digital toolset for wastewater treatment. This involvement highlights their interest in the sewage treatment industry, aligning with their broader investment strategy.


10. DTCF | DeepTech & Climate Fonds

  • Website: dtcf.de
  • Type: Venture Capital
  • Headquarters: Bonn, North Rhine-Westphalia, Germany
  • Headcount: 11-50
  • Number of deals in 2024: 8
  • LinkedIn: dtff

DTCF | DeepTech & Climate Fonds is a venture capital fund based in Bonn, North Rhine-Westphalia, Germany, focused on providing capital to startups and companies in the deep technology and climate sectors. The fund supports innovative projects by offering investment and consulting services, helping these companies secure the necessary funding to advance their technologies. In 2024, DTCF has made several investments, including a significant one in Membion, a German wastewater recycling company that received around €5 million in a Series A funding round. Membion develops and produces membrane bioreactor (MBR) modules for wastewater treatment, which highlights DTCF's commitment to supporting technologies that address climate and environmental challenges. This investment is particularly relevant to the sewage treatment plant construction industry, as it directly relates to wastewater treatment solutions. Additionally, DTCF has invested in other high-tech industries, but their involvement with Membion underscores their potential relevance in the sewage treatment sector.



Sewage Treatment Plant Construction Insights: Key Investors in DACH


InvestorHeadquarterSizeFoundedDeals 2024
SiemensMunich, Bavaria, Germany10001+184711
wienerbergerVienna, Vienna, Austria10001+18192
BasfLudwigshafen, Rhineland-Palatinate, Germany10001+18651
ExtantiaBerlin, Berlin, Germany11-5020206
BrenntagEssen, North Rhine-Westphalia, Germany10001+18748
Georg FischerSchaffhausen, Schaffhausen, Switzerland10001+18020
SulzerWinterthur, Zurich, Switzerland10001+18340
REMONDIS GruppeGermany10001+19340
GCP Gamma Capital Partners - The VenturePreneurs - The MezzoPreneursVienna, Vienna, Austria1-1020020
DTCF | DeepTech & Climate FondsBonn, North Rhine-Westphalia, Germany11-508


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