About National Underground Group
National Underground Group is a Construction company, headquartered in Irvine, with 51 - 200 employees and annual revenue of $1B+.
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 Undergrou...
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National Underground Group Company Highlights
Phone Number
(949) 380-xxxx
Corporate Office Address
47 Discovery
Irvine, 92618
Website
National Underground Group Email Format
The most common National Underground Group email format is [first].[last] (ex. john.doe@nationalu.com), currently being used by 100% of National Underground Group business email addresses. There are 10 email formats used by National Underground Group.
National Underground Group Org
National Underground Group has 1 VP, 1 Director, 11 Manager, 21 Mid-Level, and 3 Other employees.
National Underground Group Decision Makers
- CEOChris Berry
National Underground Group's Tech Stack
Frequently Asked Questions About
National Underground Group
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Who is the CEO of National Underground Group?
The CEO of National Underground Group is Chris Berry. See full contact details ›
How many senior employees does National Underground Group have?
National Underground Group has 13 senior employees that are typically used for decision making.
What email format does National Underground Group use?
The most common National Underground Group email format is {first}.{last} (e.g. john.doe@nationalu.com).
Who are the key decision makers at National Underground Group?
Key decision makers at National Underground Group include Chris Berry (CEO). See full contact details ›
What technologies does National Underground Group use?
National Underground Group uses technologies including Acumatica, ADP, and Alldata.
How do I contact National Underground Group?
To contact National Underground Group, visit nationalu.com.
What companies are similar to National Underground Group?
Companies similar to National Underground Group include Chase, Celestica, and Microchip Technology Inc..
Where is National Underground Group headquartered?
National Underground Group is headquartered at 47 Discovery, Irvine.
What is the main phone number for National Underground Group?
The main phone number for National Underground Group is (949) 380-xxxx.
What is the official website for National Underground Group?
The official website for National Underground Group is nationalu.com.
What is the annual revenue of National Underground Group?
The annual revenue of National Underground Group is $1B+.
How many employees does National Underground Group have?
National Underground Group has 51 - 200 employees.
What industry is National Underground Group in?
National Underground Group is in the Construction industry.
Last updated: November 4, 2025