In 2007 Grundfos, a global leader in advanced pump solutions and a trendsetter in water technology, establishedGrundfos LIFELINK, a company that delivers sustainable water systems and associated infrastructure to low-income markets, combining existing water service technologies with innovation in business models and systems of payment and provision. This comprehensive case study outlines the challenges of developing business solutions that enable access to safe drinking water; describes Grundfos LIFELINK’s innovative turn-key solution,incl. how it was rolled out in Kenya; discusses the work done by the company to assess the socio-economic and environmental impacts of the LIFELINK system; and shares the lessons learned by the company after three years of operation on the ground.