Momentum Environmental Announces Acquisition of The Environmental Service Group

Investment marks milestone in Momentum’s expansion by boosting waste services portfolio and strengthening executive leadership team

Momentum Environmental, LLC (“Momentum”), a vertically integrated provider of environmental and industrial services, announced today the acquisition of certain assets of The Environmental Service Group, American Recyclers Co., and Genesee Soil Recycling (together, “ESG”). The acquisition, completed in partnership with ESG President Nicholas Halliday, expands Momentum’s capabilities and operational presence in Western New York and supports the company’s broader growth strategy in contiguous geographies.

“ESG represents everything we look for in a partner—deep expertise, operational strength, and a commitment to service,” said Bill Hunter, CEO of Momentum. “By uniting our teams and capabilities, we’re expanding the scale, sophistication, and speed of the solutions we offer to our customers in our core operating geography.”

This transaction marks Momentum’s third acquisition since 2024, advancing the company's goal of building a robust and scalable regional platform for environmental services. The investment increases Momentum’s territorial reach and adds operational capacity to better serve industrial and commercial clients in New York. With this acquisition, Momentum now operates three New York State Department of Environmental Conservation (NYSDEC)-permitted waste processing facilities and maintains five branch locations in Bath, Lancaster, Rochester, Syracuse, and Tonawanda.

Founded in 2003 and headquartered near Buffalo, New York, ESG is a leading environmental services provider specializing in waste processing and environmental services. Its client base spans both public and private sectors and includes long-standing relationships with manufacturers, environmental service providers, engineering firms, municipalities, and general contractors involved in transportation, energy, and infrastructure development. Known for its regulatory compliance, technical expertise, and high-touch customer service, ESG has earned a reputation as a trusted partner for complex environmental challenges in Western New York.

As part of the acquisition, ESG President Nicholas Halliday will serve as Senior Vice President of Momentum. In this role, Halliday, now a shareholder in Momentum, will support integration efforts and help lead strategic initiatives to enhance Momentum’s environmental service offerings.

“Partnering with Momentum enables ESG to offer more than ever before,” said Halliday. “Together, we’re delivering a broader, more integrated environmental services experience, driving meaningful value for our customers.”

Momentum is backed by Nonantum Capital Partners, a middle-market private equity firm. Momentum’s growth strategy includes additional acquisitions and the development of permitted waste processing assets to build a best-in-class environmental services company.

Momentum is searching for other complementary businesses to acquire in the environmental services space. If interested in learning more, please contact Bill Hunter.

About Momentum Environmental

Momentum Environmental is a vertically integrated provider of non-discretionary waste processing, industrial cleaning, emergency response, and field services in the Northeast and Mid-Atlantic. The company has locations in Bath, Lancaster, Rochester, Syracuse, and Tonawanda, New York. For more information, visit www.momentumenvironmental.com.

About Nonantum Capital Partners

Founded in 2018 by a team of experienced private equity and management executives as a spin-out from Charlesbank Capital Partners, Nonantum is a Boston-based private equity firm. Nonantum focuses on investing in family and founder-owned businesses, corporate carve-outs, complex situations where personal partnership is critical, and opportunities exist for significant equity value creation. For more information, visit www.nonantumcapital.com.

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Momentum Environmental's investment in The Environmental Service Group marks its third acquisition since 2024, advancing the company's goal of building a robust and scalable regional platform for environmental services.