This chapter examines practical water and energy efficiency strategies for the industrial and agricultural sectors, with a focus on technologies that reduce resource consumption and enhance operational resilience. It examines key practices, including water audits, submetering, cooling tower controls, water reuse, soil moisture monitoring, rainwater harvesting, and irrigation scheduling. Emphasizing the water-energy nexus, the chapter highlights how integrated solutions can lower costs, enhance sustainability, and respond to climate and regulatory pressures. It also outlines enabling policies and programs that support adoption. This comprehensive overview provides decision-makers with actionable insights to advance efficient and sustainable water and energy use in both sectors.