
“The quality and coverage of B2B contact database are very impressive...”
Mark J.
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Since 1947, National Underground Group, formerly known as Hoffman Southwest Corp., has provided a full spectrum of services to maintain healthy underground infrastructures. Today, through our family of businesses, Pro-Pipe, Tri-State Utilities, Accumark, Pipe Vision and Benchmark, National Underground Group is focused on providing underground infrastructure solutions to municipalities, utilities, government agencies, construction companies and engineering firms throughout the U.S
Cross bore,pipeline assessment,cleaning and repair,trenchless pipe relining,and underground infrastructure services
National underground group operates in the Construction industry.
National underground group's revenue is 11m - 100m
National underground group has 51 - 200 employees.
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