Incentivizing change & fostering opportunity
Carbonvert simplifies the financial and technical challenges of CCS, allowing industrial partners to stay focused on their business while leveraging new revenue streams and maximizing the value of 45Q incentives.

Fully Integrated Development & Operating Expertise
Carbonvert delivers full-cycle expertise in CCS—managing project development, operations, and financing strategies, including off-balance-sheet structures and tax equity monetization—while helping clients maximize market opportunities for their products.
Principled
Carbonvert is dedicated to advancing CCS projects that strengthen industries, support the economy and secure America’s energy future.
Nimble
Free from the bureaucracy of larger organizations, Carbonvert adapts quickly to optimize project value and deliver results for stakeholders.
Efficient
From identification through operation, Carbonvert deploys a curated team of industry experts to ensure each project receives senior level attention and is completed on time and on budget.
Our Team
Carbonvert is a seasoned team of experts in environmental project development with a focus of carbon storage hubs and tax advantaged project finance. With more than 100 years of cumulative experience in the energy industry, our senior leadership team has direct experience designing, permitting, building, and operating three of the largest commercial-scale CCS projects in operation today. We are uniquely equipped to succeed in a regulatory and capital market environment that is challenging, dynamic and undergoing constant change.

Alex Tiller
CEO & President, Co-Founder
Jan Sherman
Chief Development Officer, Co-Founder
Brent Kelsall
Chief Financial Officer
Wissam AL Monthiry
Chief Operating Officer
Sarah Stoneking
General Counsel
Jacqueline Gerst
Vice President of Storage
Mike Cain
Vice President of Development
Bill Wandel
Vice President of Accounting & Controller
Jared Walker
Director of Project Development
Mackenzie Scharenberg
Senior Geologist
Zoya Husain
Geologist
Lilli Peters
Project Manager
David Greeson
Senior Advisor
Chuck Carr Brown, Ph.D.
Advisory Board
David Heikkinen
Advisory Board
Howard Herzog
Advisory Board
Raj Mahagaokar
Advisory Board
James Whitmire
Advisory BoardCarbonvert News
OnStream Receives $26 Million in Federal Funding for Louisiana Offshore Carbon Storage Hub Development and Announces Joint Venture Partnership with Major Midstream Company
Nov 18, 2024Today, OnStream CO2, LLC ("OnStream"), a developer of carbon storage projects along the southern coast of Louisiana, announced that that it has received a $26 million CarbonSAFE Phase III grant...
Read FurtherRepsol-led Partnership Advancing Carbon Capture & Storage project in Offshore Coastal Bend Region
Oct 8, 2024October 8, 2024, Corpus Christi, Texas USA, Repsol and its partners in the Aves Carbon Capture and Storage (CCS) joint venture are pleased to be working together on an innovative...
Read Further