Juniper Capital Management Announces Sale of Infrastructure Services Group LLC

Juniper Capital Management, a lower-middle private equity firm, is pleased to announce the successful sale of its portfolio company, Infrastructure Services Group LLC (“ISG” or “The Company”), to Azuria, a portfolio company of New Mountain Capital.

Juniper invested in and created ISG in 2018 through combining Green Mountain Pipeline Services and Mr. Rehab Sewer System Rehabilitation under the ISG umbrella. In 2021, Juniper completed an add-on acquisition to bring Rhode Island-based Inland Waters, another specialized pipeline services provider, into the ISG family of companies. Since its formation, ISG has become one the largest cured-in-place-pipe lining providers in the New England and mid-Atlantic areas.

“We are proud of the partnership we built with ISG and believe they have an exciting future,” said Lou Grabowsky, Managing Partner at Juniper. “Our investments in the Company’s management team, employees, capabilities, and systems infrastructure, position the Company for continued success.”

“The Juniper team provided us with the experience and guidance to help us execute our long term-strategy,” said Mike Sisk, CEO of ISG. “We stayed true to our core values, executed our strategic plans, and remained strongly committed to our employees and customers throughout our growth journey.”

Haynes and Boone served as legal counsel and Stifel served as financial advisor to ISG.

About Infrastructure Services Group

Infrastructure Services Group provides specialized water and wastewater infrastructure services through three operating entities: Green Mountain Pipeline Services, Mr. Rehab Sewer System Rehabilitation and Inland Waters Pipeline Services. Infrastructure Services Group’s services include water / wastewater pipeline and manhole inspection and cleaning, as well as maintenance and rehabilitation for municipal and industrial clients. Infrastructure Services Group uses trenchless technology solutions that repair pipelines with minimal intrusion and limited disruption to surrounding communities. For more information, please visit

About Juniper Capital Management

Juniper Capital Management is a Dallas-based private equity firm focused on investing in manufacturing, industrials, business services, and residential services companies. Juniper’s primary strategy involves supporting smaller-scale businesses (EBITDA <$8M), a space that institutional private equity has traditionally overlooked; the firm strives to create value through the investment team’s hands-on operating experience and deep understanding of the challenges faced by business owners as they approach the next phase of growth. Juniper seeks to continue the legacies of family/founder-owned companies, partnering with management to institutionalize replicable processes, implement data-driven systems, and expand the team in preparation for scale. For additional information, please visit