Concord Enviro Systems is an environmental engineering company that makes factories able to reuse their own wastewater instead of dumping it - and, increasingly, turn their organic waste into fuel. It began in the 1990s by building a reverse-osmosis distillation plant for the Indian Navy and later brought in a Swiss partner, Rochem, to master membrane-based treatment. The recurring idea that explains its moves is a focus on proprietary technology that cuts the customer’s day-to-day running costs - because, as management puts it, impacting a client’s operating expenditure is “critical to the client in their decision-making”. # Business segments Five engines at different stages - a project-based water-treatment cash cow, two steady aftermarket streams feeding off its installed base, a pay-per-use platform gaining traction, and a clean-energy bet under construction - each built on the relationships and technology of the one before. ## 1. Water and wastewater treatment systems: the factory that builds the installed base **The company designs, manufactures and installs complete industrial treatment plants - most critically Zero Liquid Discharge (ZLD) systems that recover over 95% of wastewater - and it is the largest ZLD provider in India by revenue, with a 43.4% market share.** - **Turnkey plant builder** - it delivers end-to-end systems spanning effluent treatment, membrane filtration (ultra-filtration, nano-filtration, reverse osmosis), desalination and waste-heat evaporators, earning project-based revenue that was roughly 60-65% of the total in FY25. - **Energy cost is the moat** - it introduced Ultra-High Pressure Reverse Osmosis (UHPRO) technology to India, which slashes the energy demand of the ZLD step by about 97% and overall plant energy consumption by up to 30%, directly attacking the largest line item in a customer’s operating budget. - **Makes its own membranes** - unlike competitors who buy membranes from third parties, Concord manufactures them in-house at its Sharjah facility, giving it control over quality, performance and cost. - **Technology that skips steps** - a new Raw Effluent Membrane (REM) technology, licensed from US partner NALA Membranes, treats raw industrial effluent directly without conventional pre-treatment, reducing chemical use and sludge; the first system is currently commissioning for a mining client. - **Chasing new industrial verticals** - in FY26 it built its first Waste Pickle Liquor ZLD system for a steel plant, delivered ultra-pure water systems for a solar photovoltaic order, and is building a pipeline in green hydrogen, carbon capture and semiconductors. ## 2. Consumables and spare parts: the annuity that comes with every plant **Once a treatment plant is running, it needs a steady diet of replacement membranes, chemicals and parts - and Concord supplies them, turning each system sale into a recurring revenue stream.** - **Replacement cycle drives demand** - membranes wear out and treatment chemicals are consumed continuously, so the company’s more than 2,000 active installations create a natural, annuity-like pull for consumables. - **Distributor-led membrane sales** - it sells membranes through a distributor network that recorded roughly INR 77.5 million in sales in FY25, separate from the consumables tied to its own plants. - **Backward integration keeps margins** - because it casts its own membranes rather than buying them, the company captures more of the value and is not dependent on a supplier’s pricing. ## 3. Operations and Maintenance (O&M) services: the long-term service contract **Concord runs the plants it builds - and, increasingly, plants built by others - under one-to-three-year contracts that provide 24/7 support, digital monitoring and energy optimisation, generating predictable revenue long after commissioning.** - **O&M services provided to 36.27% of the client base** - as of March 2025, over a third of customers had an O&M agreement, and O&M represented 30% of the order book by March 2026. - **Now chasing third-party plants** - a dedicated third-party O&M division launched in 2024 goes after government and large EPC-owned facilities, not just Concord’s own installed base; it won its largest-ever O&M contract, worth INR 80 crores, in FY26. - **Bought credentials for government work** - in September 2025 it acquired Pathak Utility Private Limited, a company already engaged in operating and rehabilitating water treatment plants, through its subsidiary Rochem Separation Systems, to strengthen its bid qualifications for public-sector O&M contracts. ## 4. Roserve (Water-as-a-Service): the pay-per-use bet **Instead of selling a plant, Concord offers to own it and charge the client for every litre of water treated - an asset-light, outcome-linked model that shifts revenue from lumpy projects to recurring streams.** - **Clients pay for treated water, not hardware** - under the Roserve brand, industrial customers avoid capital investment and pay only for the water that is actually treated, which is especially attractive in water-stressed markets. - **Structured as a joint venture** - the platform sits in Roserve Enviro Private Limited, in which Concord holds a stake, and INR 100 million of IPO proceeds were earmarked to grow it. - **Gaining traction only now** - the model started seeing “meaningful traction” in FY26, representing an early-stage strategic shift toward OpEx-based revenue. ## 5. Compressed Biogas (CBG) plants: the clean-energy extension **Concord applies its anaerobic digester know-how - originally developed for water treatment - to build plants that convert organic waste into biogas, entering the segment in 2024 and moving projects into execution during FY26.** - **Industrial feedstock, not agricultural** - the company is cautious about fuel supply and focuses on projects where the organic waste is generated on-site at a factory, avoiding the risk of aggregated crop residue. - **EPC-style project revenue** - like the water systems business, CBG earns through turnkey plant installation contracts, and it represented 15% of the total order book as of March 2025. # Group structure and partners **The listed Indian parent sits above a network of wholly owned operating subsidiaries in the UAE, Mexico and Africa, two joint ventures, and minority stakes in three US technology firms - a structure designed to give it manufacturing reach, dollar-denominated contract capability and access to advanced membrane science.** - **Global manufacturing footprint** - wholly owned Concord Enviro FZE in the UAE provides a base for international contracts and houses the in-house membrane manufacturing facility; subsidiaries in Kenya and Uganda extend the company’s project execution reach. - **US technology bets** - it owns an 8% stake in NALA Membranes (the source of its REM technology), a 2.87% stake in atmospheric-water-generation company WaHa Inc. with exclusive licensing rights for India and the UAE, and a minority stake in a US polymer company, all acquired in FY26. - **Strategic technology partnerships** - a separate agreement with Aqua Membranes gives it access to patented printed spacer technology used inside membrane elements. - **A subsidiary under legal challenge** - an application to initiate corporate insolvency proceedings against material subsidiary Rochem Separation Systems (India) Private Limited was filed by a creditor in January 2025; the subsidiary is contesting it.