NOS4-1, Inc.

wisgrp.com

Williams Industrial Services Group, Inc. engages in the provision of construction, maintenance, and specialty services to the oil and gas, power generation, and other heavy industrial markets. The company is headquartered in Wilmington, Delaware and currently employs 506 full-time employees. The company went IPO on 2001-05-18. The company provides these services both on a constant presence basis and for discrete projects. Its services include plant maintenance, modification and construction; water/wastewater system new installation, expansions and modifications; painting and coatings; insulation; asbestos and lead abatement; roofing systems; and analog to digital conversions. The company provides a range of critical services, including maintenance, modification, repair and other capital project services. The company installs, maintains and modifies water and wastewater systems, including piping, pumping, storage tank and other related facilities. The company offers cleaning, surface preparation, coatings application, quality control and inspection testing on coating projects for nuclear and fossil fuel power plants and others.