Water tenders — page 9
1,313 listings tracked right now · page 9 of 28
Grants and contracts for water supply, treatment, reuse and resilience. The active funders are the World Bank and regional development banks, EU LIFE and Horizon, the US EPA, and water utilities procuring through the public-tender feeds. Listed below are the open water tenders and contract notices that landscape produces, taken from each buyer's own notice and re-checked on every refresh.
Procurement is dominated by water utilities, port authorities, municipalities and the development banks financing them. Contracts are typically works or long-term services rather than research, and prequalification on prior comparable projects is common. Development-bank-financed notices follow the bank's own procurement rules, which are generally more open to non-domestic bidders than a purely national tender would be.
This page lists open water tenders and public contracts currently tracked by Raise Lens — 1,313 of them right now, sorted with the soonest deadline first. Every listing has been classified against the sustainability taxonomy rather than matched on keywords, so what appears here is water work rather than anything whose description happens to mention it.
The buyers publishing water tenders and public contracts here include LMBV Lausitzer und Mitteldeutsche Bergbau-Verwaltungsgesellschaft mbH, MUNICIPIO DE ENVIGADO*, UNIVERSIDAD MILITAR NUEVA GRANADA**, among 2 others. Who is funding matters as much as what: eligibility, reporting burden and the realistic timeline to a decision vary far more between buyers than between individual calls.
Geographic coverage on this page spans SUBSAHARAN-AFRICA, LATAM. Eligibility is usually tied to where the work happens or where the applying organisation is registered, and the two are not always the same — worth checking before investing time in an application.
Operation of a water-purification plant in Borna West 2023–2027
••••• organisation· DE
This tender procures the operation and maintenance of a water-purification plant in Borna West, Germany, removing iron from groundwater and precipitation water through neutralization and sludge treatment. Bidders should have expertise in water treatment plant operations, chemical dosing systems, sludge dewatering, and environmental compliance.
Professional and technical services for municipal property maintenance and restoration
••••• Municipality· CO
Municipality of Envigado seeks professional and technical services for maintenance, management, and restoration of municipal properties linked to water-supply watersheds, with integrated biodiversity and environmental improvement actions in urban and rural areas. Bidders should have expertise in ecological restoration, silviculture, habitat management, and watershed conservation.
Water monitoring, sampling and physicochemical microbiological analysis service
••••• University· CO
University procurement for monitoring, sampling, and physicochemical/microbiological analysis of wastewater, surface, and groundwater as part of institutional environmental sanitation. Bidders must have laboratory accreditation and expertise in water quality analysis and environmental compliance.
Drone Piloting Training and Certifications for 220 Beneficiaries
••••• University· CO
Training and certification programme for 220 beneficiaries in drone piloting to support watershed protection, reforestation, and soil conservation in Colombia's Llanos Orientales region. Bidders should have expertise in drone training delivery, environmental project implementation, and capacity-building in emerging technologies.
Acquisition of hydraulic materials and supplies for water systems
••••• Municipality· CO
This tender procures hydraulic materials and components (pipes, hoses, tanks, valves, fittings) for implementation, replacement, maintenance and optimization of rural drinking water supply systems across Marquetalia municipality, Colombia. Bidders should be suppliers of water infrastructure materials and components with experience in rural water system deployment.
Environmental survey services framework
••••• organisation
Framework to deliver environmental survey services (ecological, hydrological, air quality, noise, etc.) supporting EIA, licensing, and railway design for the funder's major infrastructure project. Bidders should be environmental consultancies with expertise in baseline surveys, impact assessment, and regulatory compliance for linear infrastructure.
Water supply and wastewater network extension – design and construction
••••• organisation· RO
This tender procures design and construction of water supply and wastewater network extensions across three Romanian localities. Bidders must have engineering/construction expertise in water infrastructure and ability to deliver integrated design-build projects.
Leak-testing services for non-revenue water management in supply networks
••••• Municipality· ES
This tender procures leak-detection and related services for non-revenue water management in Málaga's municipal water supply network. Bidders should be specialized water utility contractors with expertise in leak localization, network diagnostics, and water loss reduction.
Project management services – flood-risk management plans review, 3rd planning cycle
••••• organisation· PL
Project management services for flood-risk management plan review and update across Poland's river basins, funded by EU FEnIKS programme. Bidders must provide organizational, legal, and financial monitoring support to ensure timely, compliant project delivery.
Engineering design services for anti-erosion barriers in Polish forests
••••• organisation· PL
Engineering design and supervision services for anti-erosion wooden barriers in Polish state forests, part of a climate-adaptation project on water retention and erosion control in mountain regions. Bidders must be engineering design firms with forestry/civil engineering expertise and experience in erosion-control infrastructure.
Groundwater pollution treatment or rehabilitation
••••• organisation· DE
This tender procures operation, maintenance, and eventual decommissioning of a groundwater remediation plant treating LCKW-contaminated groundwater with organic and landfill-derived pollutants at ≥8 m³/h throughput until 2035. Bidders should be specialized environmental engineering firms with expertise in water treatment, aeration, iron removal, air-stripping, catalytic oxidation, and long-term industrial plant operations.
Engineering design services for water supply, drainage and retention pond construction
••••• organisation· PL
Engineering design services for a water retention and drainage system fed by the Wierzbak ditch in a forest area near Marciniak Street, Poznań, including building permit acquisition and site supervision. Bidders must be engineering design firms with expertise in water infrastructure, environmental permitting, and Polish building regulations.
Operation and maintenance of wastewater treatment systems, Oliva municipality
••••• organisation· ES
This tender procures operation and maintenance services for small wastewater treatment plants in Oliva, Valencia. Bidders should be experienced wastewater treatment operators with technical expertise in plant management, maintenance, and regulatory compliance.
Environmental monitoring other than for construction – Environmental poisons in the coastal areas 2026-2031
••••• organisation· NO
This tender procures environmental monitoring services including sample collection, laboratory analysis, and reporting of hazardous substances in Norwegian coastal areas over 2026–2031. Bidders should have expertise in environmental chemistry, marine sampling protocols, and regulatory compliance with Norwegian/EU environmental standards.
Environmental monitoring post-mining lakes central Germany (2 lots)
••••• organisation· DE
This tender procures groundwater and surface water quality monitoring services across two lots in post-mining lakes in central Germany, including measurement, analysis, and reporting. Bidders should have expertise in hydrogeological surveying, water-quality analysis, and environmental data management.
Civil engineering consultancy – water regeneration station design and environmental impact study
••••• organisation· ES
Civil engineering consultancy for design, environmental impact assessment, and construction project of a water regeneration station and associated infrastructure in Barcelona. Bidders must have expertise in wastewater treatment infrastructure, environmental assessment, and large-scale water engineering projects.
Engineering design services – Project documentation for small water retention structures for a Polish forest district within a climate adaptation and erosion control programme – repeat tender
••••• organisation· PL
This tender procures engineering design services and construction supervision for small water retention structures in a Polish forest district, aimed at climate adaptation and erosion control. Bidders must be engineering/environmental design firms capable of environmental impact assessments, permitting, and on-site project oversight.
EOI - Kenya - Environmental and Social Compliance Completion audit for the Kenya Towns Sustainable Water Supply and Sanitation Program - Athi Cluster - KTSWSSP
••••• Bank· KE
This is an environmental and social compliance audit for a water supply and sanitation infrastructure program in Kenya, targeting completion of audit requirements for the Athi Cluster project. Bidders should be audit/compliance firms with experience in multilateral development bank standards, environmental/social safeguards, and water infrastructure projects in East Africa.
Planning services for floodplain reconnection at Plittersdorf Old Rhine
••••• organisation· DE
Planning services for two floodplain water-body reconnection structures (weirs/sluices) on the Rhine, supporting ecological restoration and compensatory mitigation. Bidders should have expertise in hydraulic engineering, floodplain ecology, and German waterway design standards.
Ground and surface water monitoring East Saxony
••••• organisation· DE
This tender procures comprehensive ground, surface, and lake water monitoring services across East Saxony, including measurements, sampling, analytics, and annual reporting for mining-affected waters. Bidders must have expertise in hydrogeological surveying, water chemistry analysis, field instrumentation, and environmental data interpretation.
Planting and maintenance services of green areas at hydroelectric sites
••••• organisation· FR
The funder seeks a framework agreement for planting, maintenance, and ecological management of green areas at two hydroelectric sites in southwestern France, including vegetation control, riparian management, tree diagnostics, and waste handling. Bidders should be specialized landscape/ecological contractors with experience in sensitive-area vegetation management and environmental compliance.
Water Supply Rhinwiesen LP 7-9 Planning Services
••••• organisation· DE
Planning services (design phases 7–9) for water-level management infrastructure in Brandenburg wetlands, including intake structures, weirs, and pump-station renovation. Bidders must be engineering/planning firms with hydrological and water-management expertise.
Maintenance and conservation of watercourses, channels, water reservoirs Toruń 2026–2027
••••• organisation· PL
This tender procures maintenance and conservation services for watercourses, channels, and water reservoirs in the Toruń water district for 2026–2027 under a framework agreement. Bidders should be water management contractors or environmental services firms with experience in hydrological infrastructure upkeep.
Research and development consultancy services – Copernicus Land Monitoring Service Inland Water Working Group – Supporting Services
••••• Agency· DK
The tender seeks to establish an expert working group providing independent advice on the specification, design, and evolution of Copernicus Land Monitoring Service inland water products. Bidders should be research consultancies or expert networks with strong credentials in inland water monitoring, remote sensing, and environmental data systems.
Research subcontract: experimental investigation water-reuse potential treated byproducts SUSKULT_2
••••• University· DE
Research subcontract for experimental investigation and assessment of water-reuse potential from treated wastewater byproducts in the SUSKULT_2 circular-economy urban agriculture project. Bidders should have expertise in wastewater treatment, water reuse technologies, nutrient recovery, and experimental research methodology.
Hydrological expertise for nature-valuable areas in Jeziorko Forestry
••••• organisation· PL
This tender procures a hydrological expertise study for a Natura 2000 protected wetland area in Poland as part of a forest-wetland conservation project. Bidders should be environmental consultancies or hydrological engineering firms with expertise in wetland assessment and nature conservation.
Water body maintenance services – Zielona Góra watershed management framework, 7 lots
••••• organisation· PL
This tender procures water body maintenance services including vegetation removal, silt dredging, and habitat management across seven lots in Poland's Zielona Góra watershed. Bidders should be specialized in aquatic ecosystem management, mechanical and manual water-body maintenance, and environmental restoration.
Supply and operation of a groundwater treatment facility in a German city
••••• Municipality· DE
This tender procures the supply, installation, and continuous operation of a groundwater treatment plant for the city of Bernau near Berlin, including well operation and water reinfiltration. Bidders must be technical specialists in water treatment infrastructure with proven operational capacity.
Sludge removal services – management of wastewater treatment biological residues
••••• organisation· ES
This tender procures sludge removal and management services for wastewater treatment biological residues in Castilla y León, Spain. Bidders must be waste management or environmental services companies with expertise in sludge handling, treatment, and disposal.
Research services – fish and lamprey monitoring in Natura 2000 areas
••••• organisation· PL
Research and monitoring services for fish and lamprey species in Natura 2000 protected areas across three Baltic water bodies. Bidders must have marine biology expertise, field survey capability, and familiarity with EU conservation monitoring protocols.
Water infrastructure expansion project in Bavaria: engineering design and supervision services
••••• organisation· DE
This tender procures engineering design and supervision services (HOAI phases 1–9) for the expansion of a water treatment plant serving 500,000 people across Bavaria. The contract suits engineering firms and water-infrastructure consultancies with experience in potable-water treatment facility design and construction oversight.
Operation, maintenance and conservation of Sabiñánigo and Pyrenean wastewater treatment plants
••••• Institute· ES
Operation, maintenance and conservation of two wastewater treatment plants (EDAR) in Sabiñánigo and Pyrenean municipalities in Aragón, Spain. Bidders must demonstrate operational expertise in sewage plant management, environmental compliance, and multi-site facility coordination.
Operation and maintenance of water treatment plant 2026–2028 plus one-year option
••••• organisation· DE
This tender procures operation, monitoring, and maintenance of a water treatment plant removing zinc, arsenic, and cadmium from groundwater in Germany for 2026–2028 plus one optional year. Bidders should have demonstrated expertise in industrial water treatment, remediation plant operations, and environmental compliance.
Environmental planning for Oberland electrification, routes 5505, 5620, 5621
••••• organisation· DE
Environmental planning services for railway electrification project in Germany, including landscape management plans, environmental impact assessment, species protection studies, and water-law compliance. Bidders must be environmental consultancies or engineering firms with expertise in rail infrastructure environmental assessment and German regulatory frameworks.
Wastewater treatment plant Aichwald-Aichschieß renovation master planning services
••••• organisation· DE
This tender procures master planning and engineering design services for the renovation, partial renewal, and operational optimization of a wastewater treatment plant in Germany. Bidders should be engineering consultancies or planning firms with expertise in wastewater infrastructure design and plant modernization.
TGA Planning Services for Water Treatment Facility Retrofit
••••• Municipality· DE
Planning services for the retrofit and expansion of a municipal water treatment facility in Germany, including PV solar integration and compliance with drinking water regulations. Bidders should be engineering/planning firms experienced in water infrastructure, MEP systems design, and renewable energy integration.
Structural design services for water treatment facility renovation
••••• Municipality· DE
Structural engineering design services for the renovation and expansion of a municipal water treatment facility, with mandatory integration of rooftop solar PV and continuous operational continuity. Bidders must be experienced structural engineers capable of complex infrastructure planning under operational constraints and regulatory compliance.
EOI - Multinational - Development of regional guidelines and early warning system for climate resilient infrastructure development in the water, energy, agriculture and transport sectors in the Zambezi Watercourse - PIDACC
••••• Bank
This EOI seeks consultants/firms to develop regional climate-resilience guidelines and an early warning system for infrastructure across water, energy, agriculture, and transport sectors in the Zambezi River basin. Bidders should have expertise in climate adaptation, multi-sector infrastructure planning, and regional development in Southern Africa.
Coordinating technical and administrative efforts for urban agriculture development in a Colombian capital district
••••• organisation· CO
This tender seeks to coordinate technical and administrative efforts for urban and periurban agriculture activities in Usaquén, Bogotá, promoting sustainable farming practices, vegetation cover protection, and water resource conservation. Bidders should have expertise in agroecology, environmental management, and community-based agricultural development in urban/rural settings.
Supply of chemical inputs for wastewater and leachate treatment
••••• organisation· CO
Procurement of chemical inputs for non-domestic wastewater treatment and landfill leachate processing at Enviaseo's treatment plant. Bidders must supply specialized water-treatment chemicals and demonstrate capacity to serve industrial/municipal environmental infrastructure.
Ecological minimum water discharge determination – Legnitzka and Buchholzer Wasser
••••• organisation· DE
This tender procures ecological minimum water flow determination studies for two German rivers (Legnitzka and Buchholzer Wasser) using biotope-discharge methods and field measurements. Bidders should have expertise in hydrology, water ecology, environmental assessment, and German water law (WHG, OGewV, WWRL).
Engineering services – Planning for a 4th treatment stage at a German central wastewater facility
••••• Municipality· DE
Engineering planning services for design and implementation of a 4th treatment stage at Chemnitz central wastewater treatment plant to meet EU and German environmental standards for trace substance removal. Bidders must be engineering/environmental consultancies with wastewater treatment process design expertise and familiarity with German regulatory frameworks.
Drinking Water Supply Pipeline Study, TA 6
••••• organisation· DE
Planning and design of a drinking water supply pipeline connecting Gimritz, Friedrichschwerz, and Brachwitz in Germany's Saalkreis region. Bidders should have expertise in water infrastructure engineering, pipeline design, and feasibility studies for municipal water systems.
Master Water Supply Plan Engineering Study for Rural Villages in Colombia
••••• organisation· CO
This tender procures engineering consulting services to develop a master water supply plan for two rural villages in Colombia, including system diagnosis, hydraulic modelling, and detailed design. Bidders should be engineering firms or consultancies with expertise in water infrastructure planning and Colombian water-sector regulations.
Water Potabilization Service at Treatment Plant
••••• Municipality· CO
This tender procures water potabilization services at a municipal treatment plant, including removal of physical, chemical, and biological contaminants to produce drinking water. Bidders should be water treatment operators or engineering firms with expertise in water purification processes and municipal infrastructure.
Water Potabilization Service at Treatment Plant
••••• Municipality· CO
This tender procures water potabilization services at a municipal treatment plant, including removal of physical, chemical, and biological contaminants to produce drinking water. Bidders should be specialized water treatment operators or engineering firms with expertise in water purification processes and municipal infrastructure.
Procurement of Tank Covers
••••• organisation· GB
Procurement of design, supply, and installation of impermeable tank cover systems for wastewater and water treatment plants across ~24 sites to reduce process emissions by ~20,000 tCO₂e as part of a Net Zero Investment Programme. Bidders must be engineering/manufacturing firms capable of structural assessment, bespoke cover design, fabrication, installation, and commissioning on live operational assets.
Diagnosis, studies and designs for optimization, improvement and rehabilitation of drinking water treatment plant
••••• Municipality· CO
This tender procures diagnostic studies, engineering designs, and optimization plans for rehabilitation of a municipal drinking-water treatment plant in San Mateo, Colombia. Bidders should be engineering/consulting firms with water-infrastructure and treatment-plant design expertise.