NEW YORK, NY., December 4, 2023 — Lightsmith Group (“Lightsmith”), a global sustainable private equity firm, is pleased to announce its investment in Cadmus, a leading provider of technical and strategic expertise to governments, energy utilities, and private sector companies.

Lightsmith’s investment in Cadmus aligns with its focus on fast-growing climate resilience solutions companies that can help assess and manage increased risks and impacts resulting from climate change. Lightsmith Managing Director Jay Koh will join Cadmus’ board of directors and support Cadmus in both its organic and acquisition-related growth strategies.

“Climate change is already increasing shocks and stresses on communities, utilities, companies, and governments worldwide, impacting continuity of operations, infrastructure, energy supply, health, policy, and investment decisions. Climate change risk demands expertise in climate resilience,” said Jay Koh, Managing Director at the Lightsmith Group. “We are excited to work with Cadmus as it continues to achieve extraordinary results for its clients.”

Founded in 1983, Cadmus is a medium-sized strategic and technical consultancy with expertise across climate, energy, water, transportation, sustainability, security and all-hazard preparedness, public health, technology and innovation, change management, and international development. Cadmus recently acquired Nathan Associates, an international economic and analytics consultancy, more than doubling Cadmus’ U.S. Federal contracting business.

“For over 40 years, Cadmus has strategically diversified its capabilities and expertise to help our clients solve the world’s most challenging problems,” said Cadmus President and CEO Ian Kline. “No challenge today is more pervasive and multifaceted than climate change. Lightsmith shares our commitment to making an impact and our vision for how to achieve it.”

“We welcome Lightsmith’s investment in Cadmus and Jay Koh joining its board of directors” said Fred Iseman, Chairman and Chief Executive Officer of CI Capital Partners, the majority investor in Cadmus.  “Lightsmith shares our vision to grow Cadmus into the leading consultant focused on climate.”


About Lightsmith Group
The Lightsmith Group is a sustainable private equity firm that invests in companies that address critical societal needs. Lightsmith invests in growth-stage companies providing technology-enabled business services and solutions in the areas of energy, water, food and agriculture, and climate resilience. For more information on The Lightsmith Group, please see:

About Cadmus
Cadmus is a strategic and technical consultancy compelled to help solve the world’s most challenging problems. We assemble outstanding teams of leading experts leveraging transformative technologies to work seamlessly across disciplines to help you achieve extraordinary results. From energy, water, and transportation to safety, security, and resilience—together, we are strengthening society and the natural world. Cadmus’ more than 1,000 consultants serve government, commercial, and nongovernmental organizations around the world. For more information, visit

About CI Capital Partners
CI Capital Partners LLC is a leading North American private equity investment firm dedicated to investing in middle-market companies with over $2.4 billion of invested capital. Throughout its 30-year history, CI Capital and its portfolio companies have made over 425 platform company and add-on acquisitions representing over $10 billion in enterprise value. CI Capital forms partnerships with experienced management teams and entrepreneurs to build substantial businesses through add-on acquisitions, organic growth and operational improvements. For more information on CI Capital Partners, please visit

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