UN MATCHED INVENTORY. RIVALED EXPERTISE. BEATABLE SERVICE.
Referral built. Service focused. Project ready.
Since 2011, American Underground Supply has been offering comprehensive solutions, fast delivery, expert problem-solving, and unmatched responsiveness. With locations throughout the Midwest, an unrivaled inventory, and cutting-edge technology, we ensure efficiency and customer satisfaction at every step. Our business is built on referrals, and our team is dedicated to finding solutions that meet all project needs.
Available Inventory. Accessible Expertise.
Our experienced staff will work with you on your project while working hard to understand the specification requirements to eliminate challenges and create opportunities for savings.
AUS proudly stands as one of the largest independent waterworks distributors. This enables us to work with more than 300 manufacturers. Through our volume buying consortium, we aggregate collective purchases approaching $9 billion, enabling us to maintain competitive pricing while preserving AUS’s autonomy.
Products
Proven products from the nation’s top manufacturers matched with our comprehensive inventory strategy.
Services
Providing underground infrastructure for water, storm and sanitary to public and private projects.
Small Business Dedication.
Enterprise Expertise and Inventory.
Why choose American Underground Supply? Proudly woman-owned, we value independence and local focus, offering personalized service and flexibility. Local focus means we understand regional needs and build strong relationships with contractors and municipalities to meet community-specific requirements.
We adapt quickly to market changes and customer demands, providing tailored solutions that larger suppliers can’t always offer. Our collaborative network bridges manufacturers, engineers, contractors, and municipalities, helping design products and processes to address local infrastructure challenges.
Products when and where you need them.
AUS is an independent distributor aligned with the industry’s best manufacturers. Our inventory features the most commonly used products as well as the hard-to-find or infrequently sourced products, ready to deliver.
There is no substitute for experience.
Our knowledgeable professionals can leverage decades of experience to get the job done.
Measure twice. Cut once.
Our best practices process is comprehensive and designed to keep projects on schedule and on budget.
Entrenched (literally) in Midwest infrastructure.
American Underground Supply’s portfolio of projects spans multiple industries and every tier of the builder hierarchy from project owner to engineer to general contractor to utility contractor and municipality.
Locations

Affiliations and Certifications
American Underground Supply is a federally certified Woman-Owned Business that serves utility contractors and municipalities as a leading distributor of pipe, valves, fittings and tools, and a top provider of waterworks services and equipment rentals. We are 100% independent, and we have delivered practical solutions and timely results to customers since 2011.