Callidus Technologies L.L.C. offers custom designed and fabricated burners, flares, gas/liquid incinerators, and vapor combustion units. Its services include turnkey installation, operator training, tuning for optimum performance, troubleshooting for equipment performance, individual part replacement, and retrofitting for enhanced performance. The company also provides engineering and consulting services for environmental and combustion applications. It serves clients in North America, the Far East, the Middle East, Eastern and Western Europe, and South America. Callidus Technologies L.L.C. has manufacturing, and industrial scale research and testing facilities in Beggs, Oklahoma. The company was founded in 1989 and is based in Tulsa, Oklahoma. It has sales offices in London, Shanghai, and Tokyo. Callidus Technologies L.L.C. is a subsidiary of Chicago Bridge & Iron Co. NV.