Redtail Renewables Announces Claus Nussgruber as Chief Executive Officer
Indianapolis, IN – April 2, 2026 – Redtail Renewables, a leading renewable natural gas developer and operator, today announced the appointment of Claus Nussgruber as chief executive officer. Co-founder Casey Holsapple will assume the role of president, where he will continue to lead the company’s commercial team.
Nussgruber is a dynamic CEO and board leader with more than 30 years of experience across the global industrial gas and energy sectors. He brings a proven track record in leading strategic growth, scaling enterprises, disciplined capital allocation, and building high-performing and resilient organizations. Prior to joining Redtail Renewables, he served as CEO of Utility Global and held senior executive leadership positions at Air Products and The Linde Group, where he led strategic growth, M&A, and commercialization initiatives.
“I am thrilled to join Redtail Renewables at a pivotal inflection point in the company’s trajectory as we leverage our early successes into scaled commercial deployment,” Nussgruber said. “Redtail’s comprehensive approach to developing renewable natural gas from landfills, combined with its robust financial backing makes this an exciting opportunity.”
“Claus joins our team at an exciting moment in Redtail’s evolution,” said Casey Holsapple. “With operating assets, a robust pipeline of high-potential projects, and proven commercial momentum, Redtail is well positioned for its next phase of expansion.”
Backed by Inyarek Partners, a leader in building enduring energy and industrials businesses, Nussgruber’s appointment is intended to further strengthen Redtail’s leadership team as it expands its development activity and operations. “Bringing Claus on board represents a defining moment for Redtail Renewables,” said Paul Kaboub, partner at Inyarek. “He brings a rare combination of vision, operational depth, and established industry relationships, along with deep experience scaling organizations. His ability to navigate complex markets, forge high-value partnerships, and execute with urgency will be essential as Redtail enters its next phase.”
Kaboub added, “Casey’s vision and determination have been foundational in building Redtail into a competitive renewable natural gas company with operating assets and a robust development pipeline. We are excited that he will continue to play an important leadership role as president, helping ensure continuity while partnering closely with Claus to write Redtail’s next chapter.
About Redtail Renewables
Redtail Renewables develops and operates renewable natural gas projects, converting landfill gas into clean, domestic renewable energy. The company builds energy independence and strengthens resilience of supply while reducing reliance on traditional fuels. Redtail flexibly designs each project around customer needs, while its execution methodology delivers superior value for all partners. Redtails’ team brings experience across the full project lifecycle, from the wellfield, through production and delivery. www.redtailrenewables.com
About Inyarek Partners
Inyarek Partners is an investment firm focused on supporting the growth of closely held businesses in the energy and industrial sectors. The firm partners with entrepreneurial management teams and owners seeking an investment partner with deep sector experience and a roll-up-the-sleeves mentality to help unlock the next phase of their business. Inyarek’s founders have supported the formation or growth of more than 30 companies over nearly two decades investing together. www.inyarek.com