WESTBROOK – St.Germain, an environmental consulting, regulatory compliance, and engineering firm announced it has joined Aventia, an industry-leading platform providing comprehensive environmental service solutions. Financial terms of the transaction were not disclosed.
Headquartered in Maine, St.Germain serves industries throughout New England and the United States, offering a range of compliance, environmental, and engineering services, including site remediation, hydrogeological investigation, solid and hazardous waste management, environmental compliance, energy and petroleum management, site planning and civil design, training, and Sentry EHS®, an on-line compliance management and tracking tool.
Bernhard Capital Partners, a services and infrastructure-focused private equity management firm, established Aventia — formerly Environmental Systems Group — in July 2022. Aventia provides a comprehensive suite of environmental and technology-driven solutions to meet the evolving needs of public and private clients. As Aventia’s fourth acquisition, St.Germain strengthens the platform’s consulting, engineering and technology capabilities, expands its geographic reach, and offers additional services, such as Sentry EHS®, to its expanding client base.
“We are excited to welcome a well-respected firm like St.Germain to the Aventia family,” said Dirk Applegate, chief executive officer of Aventia. “The team’s collective experience and demonstrated commitment to environmental excellence align seamlessly with our platform’s mission to deliver customized, best-in-class solutions for our clients, and we are confident in the value they add to our service offerings and capabilities.”
“Joining Aventia marks a promising new chapter for our business,” said Mark St.Germain, president of St.Germain. “By combining our expertise and deep understanding of environmental challenges with Aventia’s extensive resources and network, we look forward to further enhancing and expanding our strategic services, as we continue to help our clients achieve their environmental and operational goals.”
“The addition of St.Germain represents another strategic milestone in Aventia’s growth, strengthening the capabilities of our platform to become a diversified, one-stop environmental solutions provider,” said Chris Dillon, partner at Bernhard Capital. “This expansion enhances our nationwide reach while further establishing Aventia as a leader in environmental services.”
PSMJ Resources, Inc. initiated the transaction and provided transaction advisory services to St.Germain.
Founded in 1992, St.Germain is an environmental consulting and engineering firm providing senior level management to clients in the areas of site planning and development, energy, petroleum and waste management, site investigation and remediation, water resources and environmental, health and safety compliance. For more information, visit stgermain.com.
Aventia, a Bernhard Capital Partners portfolio company, brings together the capabilities, offerings, and collective resources of industry-leading environmental service businesses. Aventia is comprised of KC Harvey Environmental, an environmental and natural resources consulting, land reclamation, and field services firm; BEM Systems, a premier environmental consulting, engineering, and information management firm; and ELOS Environmental, an environmental consulting firm with services spanning natural resources and experience in program and project management. Aventia has been recognized by Engineering News-Record as a Top 200 Environmental Firm for the last two years (2023, 2024). For more information, visit aventiaenv.com.
Bernhard Capital Partners is a services and infrastructure-focused private equity management firm established in 2013. Bernhard Capital Partners has deployed capital in four funds across several strategies and has approximately $4.4 billion in assets under management. Bernhard Capital Partners seeks to create sustainable value by leveraging its experience in acquiring, operating, and growing services and infrastructure businesses. For more information, visit bernhardcapital.com.
