Graham Partners Reaps Outflow from Infiltrator

May 28th, 2015


Graham Partners, a private investment firm focused on investing in businesses with advanced manufacturing technologies, innovative product development capabilities, and strong growth potential, is pleased to announce it has sold Infiltrator Systems, Inc. (“Infiltrator”), a leading manufacturer of engineered plastic chambers, synthetic aggregate leachfields, plastic tanks, and accessories used in the large and growing wastewater and stormwater industries. Headquartered in Old Saybrook, CT, Infiltrator is a pioneer in innovative plastic technologies and a leading provider of plastic chambers for stormwater management.

Successful Initiatives Drive 2.6x EBITDA Growth
During Graham’s ownership, the company’s EBITDA increased by 2.6x, fueled by strong new product releases, tactical add-on acquisitions, and continuous operational improvements. In particular, the company expanded its product offering by developing an innovative line of proprietary products serving three core segments – dramatically increasing its average dollars sold per single family housing start. Infiltrator’s culture of continuous innovation in product development, material science, and manufacturing processes has resulted in revolutionary new product designs. The company designed and manufactured the largest injection molding machine in the world, which produces highly engineered products using nearly 100% recycled materials. Additionally, Graham Partners worked closely with Infiltrator to complete five strategic add-on acquisitions which further strengthened and diversified the company. These successful initiatives validated Graham’s investment thesis, which is premised on a conversion to plastic septic chambers and systems, as the conversion provides significant advantages over alternative solutions, including easier, faster, and more cost effective installation, reduced drainfield footprint area, and greater design flexibility.

Roy Moore, President and CEO of Infiltrator, states “Working with Graham Partners has been a great experience for our team at Infiltrator. We are grateful for their steadfast support, which has positioned the company well for continued growth.” Don Graham, founder of the Graham Group, adds, “It has been a privilege to support the growth of this exceptional company. Working with Infiltrator’s senior leadership team has been rewarding, and their unwavering commitment to operational excellence and new product development holds great future promise for the company.” Rob Newbold, Managing Principal at Graham Partners, continues, “Infiltrator’s strong industry position coupled with management’s focus on continuous development and improvement in both products and manufacturing processes made it a pleasure to partner with the team. We wish them continued success under new ownership.”

About Infiltrator (
Infiltrator Systems, Inc., headquartered in Old Saybrook, Connecticut, is the leading manufacturer of engineered plastics chambers, synthetic aggregate leachfields, plastic tanks, and accessories for the onsite wastewater and stormwater industries. Infiltrator continually introduces innovative products that are light-weight, easy-to-install replacements for traditional wastewater and stormwater infrastructure products. Today, Infiltrator’s dedicated sales, technical, government relations, and customer service teams drive sales of strictly regulated products through a network of over 1,700 distributors in the U.S. and Canada. The products, primarily injection molded from recycled resins, are made by some of the largest molding machines in the world. These patented products are engineered for strength and efficient performance while providing a cost-effective and environmentally friendly means of addressing the planet’s growing needs for wastewater and stormwater management.



Rob Newbold (
Christina Morin (
Tel: (610) 408-0500 / Fax: (610) 408-0600
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