Robert W. Affholder

SAK Construction LLC provides pipeline rehabilitation and tunneling contracting services. The firm offers repairing of the sewer and pipeline infrastructure in metropolitan areas without excavation or disruption by utilizing state-of-the-art trenchless technologies, including CIPP (cured-in-place pipe) pipeline rehabilitation. The company was founded in 2006 and is headquartered in O'Fallon, MO.

Sipp Technologies LLC develops robotic devices. It specializes in robotic lining systems and develop and manufacture propriety lining polymerics. The company is headquartered in Jacksonville, FL.

Insituform Technologies LLC provides cured-in place pipe, other technologies, and services for the rehabilitation of water and wastewater pipeline systems. It offers solutions to remediate operational, health, regulatory, and environmental problems resulting from aging and defective pipelines. The company was founded in 1971 and is headquartered in Chesterfield, MO.

Affholder, Inc. is a private company based in Missouri that provides pipeline contracting services.

Part of Aegion Corp., Insituform Mid America, Inc. builds and repairs pipelines. The company is based in Chesterfield, MO. Insituform Mid America was acquired by Insituform Technologies LLC on October 25, 1995 for $144.32 million.