In September 2026 Ocean Merchant Industrial Partners created Acqua Holding by acquiring 100 percent of ZAC srl of Soresina (Cremona) and combining it with Puro Water Technology of Traversetolo (Parma), a business the sponsor had taken control of at the end of 2024 through its earlier OMH7 club deal. Banco BPM financed the transaction, and the founding families reinvested for a minority stake while keeping operational management. The result is a new Italian industrial-water-treatment platform assembled the way most of the country's water sector actually scales, through disciplined mid-market combinations rather than a single headline acquisition. For an audience that watches the water and private-capital overlap, this deal is the cleanest current illustration of a thesis that shapes where value is built in the sector.
The deal: two specialists become one platform
The transaction closed through OMH8, the latest club-deal vehicle of Ocean Merchant Industrial Partners. ZAC srl brings stainless-steel process components, and Puro Water Technology brings industrial water treatment, two complementary capabilities that together serve food and beverage, dairy, pharmaceutical, chemical and cosmetic customers. Banco BPM provided the acquisition financing, Ocean Merchant Corporate Finance advised on the corporate finance and M&A workstream, and Sani Zangrando handled the legal side. The structural detail that matters most sits in the ownership: the founders reinvested for a minority position and retained day-to-day operational control, which keeps the technical knowledge and customer relationships inside the combined business rather than draining out at closing.
Consolidation without a megadeal
Italy's water map is famously fragmented, with hundreds of specialised engineering and treatment workshops that rarely reach national scale on their own. Acqua Holding shows the alternative route: a sponsor aggregates two regional specialists into a platform that can cross-sell, standardise procurement and bid for larger industrial contracts. The market backdrop supports the approach. BeBeez counted 322 private-capital deals in Italy in the first half of 2026, evidence that mid-market appetite remains active even in a selective environment, while AIFI has framed infrastructure as a real opportunity conditioned on regulatory and policy certainty. In a fragmented, capex-hungry segment, the value comes from operational integration rather than financial engineering, and the founders keeping control is the mechanism that protects that integration through the first years of ownership.
The capital stack behind the pipes
A club deal financed by Banco BPM sits at one end of a much larger capital-formation story now visible across European water. The European Investment Bank reframed its Water Resilience Programme upward to mobilise roughly 40 billion euro of water investment worldwide over three years, and joined the Water Forward coalition with a pledge to help deliver water security for 300 million people by 2030. Listed strategics are buying too: Acea completed its acquisition of the smart-water platform Aquanexa at an enterprise value of about 205 million euro, against roughly 30 million euro of 2025 pro-forma EBITDA. Above the sector, infrastructure dry powder keeps compounding, with KKR closing its largest-ever infrastructure fund at 19.2 billion dollars on 3 August 2026. The Acqua Holding deal is the mid-market floor of that same pyramid, where bank debt and founder equity, not megafund cheques, do the assembling.
From steel and pipes to process and data
The combination also points to where advantage is migrating inside water. Physical hardware still matters, yet the durable margin increasingly comes from process capability and the data-and-sensing layer that cuts losses and lifts regulated returns. Acea's purchase of Aquanexa was a bet on exactly that digital layer, and a platform like Acqua Holding will be judged over time on how well it moves from selling components to selling engineered, monitored process outcomes. Regulation adds a tailwind. The recast Urban Wastewater Treatment Directive introduces quaternary-treatment and micropollutant obligations that compel treatment capex across the industrial base these companies serve. For a mid-market operator, the practical edge is the certainty premium that AIFI describes: the ability to deliver reliable engineering and compliance while larger buyers wait for tariff and permitting frameworks to settle.