Our mission

Our mission is to turn wasted methane into dependable renewable fuel.

Redtail Renewables develops, builds, owns, and operates renewable natural gas projects, converting landfill gas into clean, domestic renewable energy. We build energy independence and strengthen resilience of supply, while reducing reliance on traditional fuels.
We design each project around the customer's needs, and our execution methodology delivers value to every partner. Our team brings experience across the full project lifecycle, from the wellfield through production and delivery.
Redtail was founded on a belief: tomorrow's cleanest energy is hiding in what we leave behind. Unlocking it should reward the landfill, the buyer, and the environment. The future doesn't need more promises; it needs delivered solutions — so we develop, build, own, and operate those solutions ourselves."
Claus Nussgruber
Chief Executive Officer
Core values

The values that drive everything we do.

01.

Lead with Transparency

Trust is earned, not assumed. We give every partner real visibility into their project, building confidence through consistency at every stage.

02.

Move with Agility

Discipline is our method, flexibility is our edge. We apply a proven execution methodology while adapting to what each partner uniquely needs.

03.

Deliver Excellence

We hold ourselves to high standards, and that discipline is what produces world-class projects.

04.

Own the Value Chain

From wellfield through production and delivery, our team brings deep, hands-on expertise to every stage — giving partners one accountable team, start to finish.

05.

Foster Long-term Success

The right fit matters as much as the right deal. We take on projects and partners we believe in, because that's what long-term success is built on.

06.

Execute on Every Promise

Execution is our track record, not just our promise. We hold every project to the highest standard, turning commitments into world-class assets partners can count on.
Our team

Clean fuel powered by passion, experience, and resilience.

Claus Nussgruber

Chief Executive Officer
Biography

Claus brings 30 years of leadership experience across private equity, venture capital, and S&P 100 companies. He came to Redtail from the utility sector, where he played a central role in Air Products' clean-energy facility in Ascension Parish, Louisiana.

Chief Executive Officer

Claus Nussgruber

Casey Holsapple

Co-founder and President
Biography

Casey brings decades of experience scaling energy and renewable fuel platforms in capital-intensive environments. Before co-founding Redtail, he was central to developing Kinetrex Energy's RNG platform and its subsequent sale to Kinder Morgan.

Co-founder and President

Casey Holsapple

Corey Holsapple

Co-founder and Chief Financial Officer
Biography

Corey spent decades in banking and structured finance, most recently at Fortis Bank, before co-founding Redtail.

Co-founder and Chief Financial Officer

Corey Holsapple

Rob Morgan

Chief Commercial Officer
Biography

Rob brings more than 20 years of experience in sustainable fuels, renewable energy, and energy storage. He joins Redtail from Agile Energy, where he built two businesses into top-five players in energy storage.

Chief Commercial Officer

Rob Morgan

Alex Barrow

Vice President of Projects and Operations
Biography

Alex brings more than a decade of experience in the engineering and energy industries. He joins Redtail from Archaea Energy, where he managed construction of landfill gas processing plants.

Vice President of Projects and Operations

Alex Barrow

Rick DiGia

Advisor and Consultant
Biography

Rick joins Redtail from EDL and brings more than 30 years of energy and landfill industry experience, providing proven leadership and strategic guidance to the executive team.

Advisor and Consultant

Rick DiGia

Jason Bickel

Director of Projects
Biography

Jason brings 15 years of hands-on engineering experience and leads delivery across Redtail's active projects.

Director of Projects

Jason Bickel

Kim Marais

Director of Procurement & Contracts
Biography

Kim brings an extensive background in procurement across multiple industries. At Redtail, she oversees buying strategy and supplier relationships.

Director of Procurement & Contracts

Kim Marais

Gillian Fent-Baker

Director of Commercial Development
Biography

Gillian brings a strong background in finance and commercial development. She joins Redtail from Citymark Capital and looks forward to applying her strategic insight to support the company's continued growth.

Director of Commercial Development

Gillian Fent-Baker

Hayleigh Turner

Executive Assistant
Biography

Hayleigh brings a strong background in customer service and operations from Employ. At Redtail, she supports the executive leadership team.

Executive Assistant

Hayleigh Turner

Meghan Stackhouse

Director, Regulatory Affairs & SHEQ
Biography

Meghan brings 20 years of experience across the biogas, RNG, and power sectors. Known for transforming underperforming systems, she has managed multimillion-dollar budgets and led major program expansions through operational optimization and strategic leadership.

Director, Regulatory Affairs & SHEQ

Meghan Stackhouse

Nick Rogers

Gas Operations Manager
Biography

Nick brings nearly two decades of experience in the environmental and landfill industries. He joins Redtail from BerQ RNG Inc., where he managed RNG plants and landfill gas systems across the Northeast.

Gas Operations Manager

Nick Rogers

Jacob Nuttall

Manager, FP&A
Biography

Jacob brings financial expertise to Redtail, helping keep the company on track by evaluating new acquisitions and projects.

Manager, FP&A

Jacob Nuttall

Mason Robinson

Operations Engineer
Biography

Mason brings a background in the upstream oil and gas sector, with deep interests in energy, sustainability, and data science. He joins Redtail from ExxonMobil and looks forward to supporting its mission of turning landfill gas into renewable energy.

Operations Engineer

Mason Robinson

Eric Boehmer

Owensboro Plant Manager
Biography

Eric brings extensive project management and oversight experience to his role as plant manager in Owensboro.

Owensboro Plant Manager

Eric Boehmer

Passionate professionals, with deep experience in all areas of RNG development and operation, delivering businesses you can count on.

Proven in practice

Plenty of RNG gets promised. Ours gets delivered — metered, contracted, and flowing right now.

3.3 bcf/yr

Pipeline-quality RNG capacity, operating and in execution

23,300

metric tons of CO₂ abated in 2026

150+

combined years in gas processing and project development

4

States with RNG projects
For a better tomorrow

Turning today's waste into a cleaner tomorrow.

Capture
Wells across the landfill collect methane before it escapes to the atmosphere.
Upgrade
Our plants remove CO2, nitrogen and other contaminants.
Deliver
Renewable fuel replaces fossil fuel in existing infrastructure, eliminating the need for a new supply chain.