This page was printed from https://geosyntheticsmagazine.com

Advanced Drainage Systems acquires National Diversified Sales

News | October 3, 2025 | By:

Advanced Drainage Systems, Inc. (NYSE: WMS) (“ADS” or the “Company”), a leading provider of innovative water management solutions in the stormwater and onsite wastewater industries has entered into a definitive stock purchase agreement under which ADS will acquire the water management business of Norma Group SE (DAX: NOEJ), known as National Diversified Sales (“NDS”), in an all-cash transaction valued at approximately $1.0 billion, or approximately $875 million when adjusted for the present value of the expected tax benefits.

This combination brings together complementary water management solutions to expand ADS’ offering in new segments. By adding NDS’ expertise in residential water management solutions, access boxes and irrigation to its product portfolio, ADS further enhances its capabilities as a comprehensive provider of full-scale water management solutions. Importantly, the transaction aligns with ADS’ core growth strategies and accelerates momentum within Allied Products by introducing new solutions to the product portfolio, broadening customer reach, and enhancing distribution capabilities.

NDS brings a strong financial foundation to the combination, having generated $313 million in revenue over the trailing twelve months ended June 2025, with approximately 90% of sales in the U.S. The acquisition is expected to be accretive to adjusted EPS in the first year, supported by ADS’ proven integration capabilities and operational discipline. The transaction value, net of estimated tax benefits, represents a multiple of ~10x NDS Adjusted EBITDA from trailing twelve months ended June 2025, inclusive of expected run-rate cost synergies.

“ADS continues to evolve from a pipe manufacturing company to an enterprise providing a wide range of stormwater and onsite wastewater solutions, with leading manufacturing, logistics and design services,” said Scott Barbour, Chief Executive Officer and President of ADS. “The acquisition of NDS marks another important milestone in ADS’ journey as it accelerates our strategy to diversify and increase the mix of highly profitable Allied and Infiltrator products that enhance resiliency, supports profitable growth, and allows ADS to pursue water management projects across a broader set of applications. NDS is a leader across its product categories and is highly complementary to ADS’ solutions and go-to-market strategies.”

Mr. Barbour continued, “Our disciplined capital allocation framework and strong balance sheet provide us the flexibility to act when opportunities like this arise, while continuing to invest in our business and return capital to shareholders. Through our investment in NDS and applying ADS’ proven operating model and integration expertise, we expect to drive enhanced profitability and realize significant synergies as a combined entity. The combination of NDS’ well-regarded brand and product portfolio in residential stormwater and irrigation with ADS’ complementary capabilities, operating discipline, and customer reach, will enhance the solutions we deliver to our customers. With a proven track record of creating value through strategic acquisitions, we are confident this combination will increase our exposure to markets with powerful secular tailwinds, where the need to manage and protect water – our most precious resource – continues to grow, safeguarding both communities and the environment.”

Share this Story