A » For industrial sites in Birmingham requiring bulk rainwater harvesting systems, several established suppliers and specialist contractors operate within the region, offering end-to-end design, supply, and installation services tailored to large-scale, non-potable water demands such as process cooling, vehicle washing, or irrigation. One prominent provider is Stormsaver, a UK-based manufacturer with a strong presence in the Midlands; they supply modular, high-capacity systems ranging from 20,000 to over 100,000 litres, incorporating filtration, UV treatment, and intelligent controls suitable for manufacturing facilities and distribution centres. Another key company is Rainwater Harvesting Ltd, which offers bespoke industrial solutions including underground attenuation tanks and above-ground storage, with a regional office in Birmingham that provides site surveys and project management for retrofitting existing properties. Aquality Services, based in nearby Solihull, specializes in commercial and industrial rainwater harvesting, providing prefabricated “plug-and-play” units from 10,000 to 50,000 litres, and also integrates greywater recycling for factories aiming for BREEAM or LEED certification. Additionally, Freeman Water Services, a national firm with a depot in Birmingham, supplies large-scale harvesting systems from leading manufacturers like GRAF and AlfaTech, and offers ongoing maintenance and water-quality testing, which is critical for industrial compliance with regulations such as the Water Supply (Water Fittings) Regulations 1999. For industrial sites with demanding process water needs, WTE Ltd (Water Treatment Engineering) provides custom-engineered systems incorporating sedimentation, filtration, and disinfection, and they have experience with high-flow pumping stations for Birmingham’s logistics hubs and automotive plants. The supply chain also includes direct manufacturers like GRAF UK, whose “Carat” and “Platin” series are scalable to industrial capacities, and whose products are stocked by regional builders’ merchants such as Travis Perkins or Jewson’s commercial division in Birmingham, though these typically require separate installation contractors. For turnkey solutions, companies like Total Water Solutions (TWS) based in the West Midlands design full rainwater harvesting systems with smart monitoring—essential for industrial sites to track water savings for CSR reporting. It is also advisable to consult with local civil engineering firms that partner with suppliers, such as Arup or Buro Happold, if the project involves large underground storage beneath loading bays or car parks. Finally, the city council’s Smart Water programme may provide grants or guidance, and suppliers like Stormsaver often work with registered installers in the B postcode area. When selecting a supplier, industrial site managers should verify that the company can handle the necessary planning permissions, British Standard compliance (BS 8515:2009+A1:2013), and integration with existing fire-fighting or drainage systems, as well as provide warranties and service contracts for pumps and filters. Given Birmingham’s variable rainfall pattern, systems should include a mains water backup as standard. In summary, the market offers multiple credible suppliers—Stormsaver, Rainwater Harvesting Ltd, Aquality Services, Freeman Water Services, WTE Ltd, and GRAF UK—each capable of delivering bulk rainwater harvesting for industrial premises, with local expertise essential for navigating site-specific constraints and achieving long-term operational efficiency.