Warren Concrete Ltd (WCL) began in the mid-1960s focusing on concrete pipes and fabricated steel structures. After restructuring under new management, WCL shifted to producing a variety of pre-cast concrete products and has since become a leading producer in Kenya. WCL manufactures a wide range of products, including concrete pipes, roof tiles, and custom pre-cast items, adhering to Kenya Bureau of Standards. The company is notable for being the only manufacturer of concrete porous pipes in Kenya and specializes in high-frequency vibrated pipes for sewerage and drainage systems. WCL has built a strong reputation in the construction industry, expanded its operations to East and Central Africa, and established a branch in Uganda under the name Stone Concrete Ltd.