The Pegasus Team

Pegasus’ global team is an extraordinary group of professionals and advisors, from former CEOs and industry-leading specialists to the next generation of global leaders, we all put our skills to work and create value beyond returns.


Anuj Kamdar is a Vice President at Pegasus. Prior to joining Pegasus, Mr. Kamdar was an investment banker at Moelis & Company, where he focused on mergers & acquisitions, corporate restructurings and financing transactions across the media, technology, and consumer retail sectors. Past investments in which he has been involved include Six Senses, Spirit Music Holdings and Carol’s Daughter.  Mr. Kamdar is currently heavily involved with PanTheryx, Renaissance, Accordant and Creative Realities.  Mr. Kamdar graduated from California Berkeley with a B.A in Business Administration from the Haas School of Business.

Brian Friedman is a Partner and the General Counsel and the Chief Compliance Officer of Pegasus.  He currently serves on the firm’s investment committee and valuation committee.   Mr. Friedman oversees all legal and compliance matters for Pegasus and is actively involved in Pegasus’ initiatives with the Green Climate Fund, including the Global Fund for Coral Reefs, the Subnational Climate Fund and the CRAFT fund.  He also serves on the boards of Lighting Science Group and Global Value Lighting.

Prior to joining Pegasus, Mr. Friedman was an Associate in the Mergers and Acquisitions group at Davis Polk & Wardwell LLP, where he worked on a broad array of M&A transactions across multiple industries, with a focus on middle-market private equity transactions.  Mr. Friedman graduated from Cornell University in 2006 with a degree in Chemistry and received his J.D. from Harvard Law School in 2009. Mr. Friedman also serves on the board of the Mikey’s Way Foundation, a 501(c)(3) organization that seeks to enrich the lives of children with cancer and other life threatening conditions.

Chester brings more than 11 years of work experience in the fields of corporate finance, management consulting, and internal auditing. He holds a Bachelor’s degree in Financial Management and Accounting from the University of Cordilleras and an M.B.A. from the Asian Institute of Management.

Christopher M. O’Connor, MD, MACC, FESC, FHFSA, FHFA, currently serves as the chief executive of the Inova Heart and Vascular Institute (IHVI). In this role, Chris directs IHVI’s system-wide cardiovascular strategy, expanding the clinical, research and education programs of the Institute.

Prior to joining IHVI, Dr. O’Connor spent 31 years at Duke University Medical Center.  While at Duke, his research earned him worldwide recognition as an authority on heart failure. Most recently, he served at Duke as the Richard Stack Distinguished Professor of Medicine, Chief of the Division of Cardiology and Director of the Duke Heart Center.

Dr. O’Connor earned a Bachelor of Science degree in chemistry from the University of Maryland College Park and his medical degree from the University of Maryland Medical School in Baltimore. He went on to Duke to complete his internship, residency, chief residency and cardiology fellowship. He serves as Editor-in-Chief for the Journal of the American College of Cardiology: Heart Failure, and serves on the editorial boards for several other journals, including the New England Journal of Medicine and the Journal of the American Medical Association.

Craig Cogut has spent a career building successful investment businesses. Mr. Cogut founded Pegasus, a private equity fund, in 1995 and serves as its Chairman and CEO, and is a member of the management committee and the investment committee. Through Mr. Cogut’s leadership, Pegasus has focused on sectors influenced by global resource scarcity and the need to combat climate change, as well as on the growth in demands globally for human health and wellness, leading to Pegasus becoming the first U.S. private equity fund manager to be accredited by the Green Climate Fund. In 1990 Mr. Cogut co-founded and was one of the original partners at Apollo Advisors L.P., a position he held for six years preceding the creation of Pegasus. Mr. Cogut is currently Vice Chairman of the Board of Directors of PanTheryx.  In addition, Mr. Cogut has been an active philanthropist in the fields of improving education, building civil society and championing environmental and health issues. Mr. Cogut currently serves as Chairman of the finance advisory board of the Global Alliance for a Sustainable Planet, a non-profit focused on leveraging private finance for public good in order to achieve sustainable development goals.  Mr. Cogut is an alumnus of Brown University and Harvard Law School.

Over his career, Dale Galvin has served in a variety of leadership roles in the in the international conservation, finance, investment, and technology sectors. His positions have included Fund Manager of the Meloy Fund I, LP, Chief Operating Officer of Rare, an international conservation organization, and Chief Financial Officer of PA Consulting Group North America. Galvin holds a B.A. in Economics from Cornell University and an M.B.A. from the MIT Sloan School of Management.

Mr. Galvin is the Managing Partner of Deliberate Capital LLC.  Pegasus engaged Deliberate Capital as a subadvisor to the Global Fund for Coral Reefs.

David Cogut is a Partner and is a member of the firm’s management committee, investment committee and valuation committee.  Prior to joining Pegasus, Mr. Cogut was an investment banker at Moelis & Company, where he focused on mergers & acquisitions, corporate restructurings and financing transactions across the gaming and lodging, industrials, media, real estate, and technology sectors.  Mr. Cogut currently oversees Pantheryx, Renaissance Downtowns, Six Senses US, and SleepScore Labs.  Past investments in which Mr. Cogut was highly involved include Six Senses, Spirit Music and Halo, Purely for Pets.  Mr. Cogut also serves on the board of the Advisory Council for the Institute at Brown for Environment & Society.  Mr. Cogut graduated from Brown University with a major in Economics.

Daniela Gomez is an Associate at Pegasus.  Prior to joining Pegasus, she was a financial advisor at Evolve Management Company, where she focused on project finance and deal structuring across the sectors of energy, infrastructure and mobility.  Past transactions in which she has been involved include a fuel storage portfolio of fourteen projects, Waste to Energy and sustainable aviation fuel refinery projects.  Ms. Gomez holds a Master’s in Business Administration from the University of St. Gallen and a Bachelor’s degree in Economics from the Instituto Tecnologico Autonomo de Mexico (ITAM).

Dennis McGill has over 35 years of financial and operational enterprise leadership.  Mr. McGill’s broad range of industry experience includes retail, consumer products, real estate, oil services, insurance, environmental services, financial services, manufacturing, and technology.  Most recently, Mr. McGill, from his Chief Financial Officer and/or Chief Operating Officer positions, led the financial turnarounds/disposition of Blockbuster, Inc., Safety-Kleen Systems, Inc., GAB Robins and Hastings Entertainment. In addition, he has led effective international supply chain efforts in the lighting, environmental product, and toy industries.  Mr. McGill’s exceptional track record in commercial management is highlighted by an ability to lead effectual change, analytical decision-making, and meaningful cost reductions, while developing a strong company commitment to company culture and team members.  Mr. McGill currently lectures in the real estate department at Texas A&M in College Station, Texas.

Dr. Oken is a graduate of the University of Maryland with a B.S. in Zoology and a M.S. in Parasitology. In 1983, he graduated from the University of Maryland Medical School with Honors and is a member of Alpha Omega Alpha Honor Medical Society. He completed his internship and residency training at the University of Maryland, followed by an additional year as Chief Resident.  He is board certified in the specialty of Internal Medicine by the American Board of Internal Medicine.

Dr. Oken has continued to be involved in academic medicine and is a Clinical Professor of Medicine at the University of Maryland. Every Wednesday afternoon for 28 years he ran the Ambulatory Internal Medicine Clinic for the Residency Program at the University of Maryland and was recently given the Residents Teaching Award for service.  He is a Fellow of the American College of Physicians and was previously the Chairman of the Health and Policy Committee of the Maryland Chapter. He has also served on the Howard County Board of Health.

Dr. Oken served for 14 years as Chairman of Medicine at Howard County General Hospital, where he is currently on staff as an Attending Physician.  Dr. Oken has been listed in Best Doctors of America every year since 1997.  He also continues to do research with omega-3 fatty acids and has published a variety of articles in professional journals.

Joel Haney is a Partner and a member of the firm’s investment committee and valuation committee. He is focused on investments in environmental services, building solutions, energy efficiency and clean energy. Mr. Haney currently serves on the board of directors of Global Value Lighting, an industry leader in private label LED lighting solutions. He has held numerous portfolio company board member roles during his tenure at Pegasus.

Prior to joining Pegasus, Mr. Haney was an investment banker at Moelis & Company. Outside of the office, he is an advisory board member of the Department of Dermatology at Mount Sinai in New York City. Mr Haney graduated magna cum laude from Northwestern University.

Juandy has more than 10 years of work experience in the accounting and investment sector. He holds a Bachelor’s degree in Accounting and Finance and an M.B.A. from the Asia-Pacific International University.

Michael Chorske is an Operating Partner at Pegasus, focusing on sustainable agriculture, aquaculture, and infrastructure investments. Prior to joining Pegasus, Mike was a founder and Managing Director of Emergent Holdings, LLC, which develops land-based aquaculture and controlled environment agriculture assets across geographies and species. He was the Executive Managing Director of Whole Oceans, LLC, which is developing a 20,000 MT land-based aquaculture facility in Bucksport, ME. Mike’s prior experience includes a 25-year career in private equity and venture capital. His operating experience includes senior financial management, business and corporate development roles with public and private companies. He received a Bachelor of Arts degree from Middlebury College and an MBA from Columbia University.

Michael F. Roizen, MD, is a Phi Beta Kappa graduate of Williams College and Alpha Omega Alpha graduate of the University of California, San Francisco, School of Medicine who is passionate about helping people choose to live younger and healthier.

He performed his residency in internal medicine at Harvard’s Beth Israel Hospital and completed Public Health Service at the National Institutes of Health in the laboratory of Irv Kopin and Nobel Prize winner Julius Axelrod. He is certified by both the American Boards of Internal Medicine and of Anesthesiology. Dr. Roizen is the Cofounder of RealAge Inc, which was sold in 2006, but still Chairs its Scientific Advisory Board. He is 72 calendar years of age (2018), but his RealAge is 53.8.

Dr. Roizen is a Past Chair of a Food and Drug Administration advisory committee and a former editor for six medical journals. He has published more than 185 peer-reviewed scientific papers, 100 textbook chapters, 30 editorials, and four medical books (one, a medical best-seller), and received 13 U.S. and many foreign patents. One of the drugs he co-invented and developed (licensed to Progenics and Wyeth Corp.) has been approved by the FDA.

After nine years on the faculty at the University of California, San Francisco, he chaired the top-10-rated Department of Anesthesia and Critical Care at the University of Chicago. He then became Dean of the School of Medicine and Vice President for Biomedical Sciences at SUNY Upstate. After serving as CEO of the Biotechnology Research Corporation of Central New York, he accepted a position as Chair of the Anesthesiology Institute at Cleveland Clinic, responsible for over 180 operatories, 124 critical care beds and 28 pain therapy intervention units.

In 2007, Dr. Roizen was named Chief Wellness Officer at Cleveland Clinic, the first such position in a major healthcare institution in the United States. Dr. Roizen also served as founding Chair of the Wellness Institute at Cleveland Clinic from 2007 to 2017.

His first general-audience book, RealAge: Are You as Young as You Can Be? (HarperCollins Publishers) became a #1 New York Times bestseller and was awarded the Best Wellness Book of 1999 by the Books for a Better Life Awards. RealAge has been translated into more than 20 languages and was #1 in four other countries, displacing Harry Potter for 7 days as #1 on Amazon. Other books include the New York Times bestseller The RealAge Diet: Make Yourself Younger With What You Eat (HarperCollins), written with Dr. John La Puma, Cooking the RealAge Way (Harper Collins), also with Dr. La Puma., and The RealAge Makeover (HarperCollins). His book, YOU: The Owner’s Manual (HarperCollins), written with  Health Corps founder Dr. Mehmet Oz, debuted in May 2005 and became a #1 New York Times bestseller (sold more than 2.7 million hardcover copies worldwide; was the #2 best-selling book published in 2005– displacing Harry Potter for 35 days as #1 on Amazon and It was followed by the New York Times bestseller, YOU: The Smart Patient. Their next book, YOU: On A Diet, the Owner’s Manual for Waist Management, debuted at #1 on the New York Times list (11 consecutive weeks at #1 and 17 consecutive weeks in top 3) with 21 printings totaling over 2.4 million copies in the first three weeks (it was the #2 best-selling book published in 2006 in 2006), and displaced Harry Potter for 177 days atop Amazon. Their next book, YOU Staying Young, the Owner’s Manual for Extending Your Warranty also debuted at #1 on the New York Times list, and is listed by People magazine as the #3 selling book in the world in 2007.  He has authored or coauthored 4 #1 NY Times Bestsellers, 9 top 10 Bestsellers (including AgeProof , Living Longer without Breaking a Hip or Running Out of Money), and shared an Elle, an Emmy and the Paul G. Rogers Award from the National Library of Medicine as Best Medical Communicator.

Dr. Roizen has given over 1,600 lectures to professional medical groups and has been recognized with over 20 professional lectureships. He has appeared on The Oprah Winfrey Show, Today 20/20 (3 times), CBN, CNN, Good Morning America  and Canada AM, more than 28 times each, in addition to appearences more than once on CBS, The Montel Williams Show, and Larry King Live. He has authored, co-produced,  and been the talent in six PBS fundraising specials (his fundraising special The RealAge Makeover was one of the top two PBS special fundraisers in 2006, now with well over 5,000 showings in 100 TV markets). His next two PBS specials: YOU On A Diet, and Longevity Factors, have both received acclaim, and widespread enough distribution to be top 5 fundraisers in year of release for PBS. He and Mehmet Oz write a daily newspaper column syndicated to over 100 newspapers by King syndication.  He is now in his 18 th year of a radio-podcast  entitled: YOU The Owner’s Manual Radio Show. He has been featured in Fortune, O, Glamour, Cosmopolitan, Good Housekeeping, Ladies’ Home Journal, Biography, People, US, Men’s Health, Biography, and Prevention.

Dr. Roizen still practices internal medicine, using the RealAge metric to motivate his patients. He routinely takes patients at the Cleveland Clinic Wellness who are in the midst of struggling with tobacco, heart, diabetic or arthritic problems and coaches them with simple (but persistent) lifestyle changes to be able to live, feel, look and be years younger. He really enjoys getting them to throw away their medications when they no longer need them, but teaches the role of  food and other simple steps in reversing disease processes. Cleveland Clinic Wellness aims to elevate preventive care and wellness as a core brand of Cleveland Clinic and a core value we teach our patients and employees.

Natalie Gartmann is the ESG & Impact Manager of Pegasus. Ms. Gartmann is a member of the Sustainability Committee. Prior to joining Pegasus, Ms. Gartmann was a Consultant at the global management consulting firm Sustainserv where she advised companies on integrating sustainability into long-term strategies, everyday operations, and reporting. She has a strong background in the financial sector, which includes developing and implementing responsible investment policies, integrating ESG into investment decision-making processes, and conducting impact assessments. Ms. Gartmann holds a Master’s in Management from HEC Paris and a Bachelor’s degree in International Affairs from the University of St. Gallen.

Nicolas Hasselbach is an Operating Advisor at Pegasus, focusing on renewable energy investments for the Subnational Climate Fund. Mr. Hasselbach joins Pegasus with over seven years’ experience in engineering, finance and investments as an engineering lead and financial analyst most recently at Impala Energy Group. Focus areas include investment / market analysis, technology development and testing, and strategic consulting in the energy and automotive sector. Mr. Hasselbach has a Master’s in Engineering and has passed CFA Level III.

Oliver Giera is an Associate at Pegasus. Prior to joining Pegasus, he worked for various consultancies like Parthenon, EY, and others, where he focused on financial, strategic, and due diligence advisory in public and private sectors. He is further trained in the development and application of data scientific modelling and analysis. Mr. Giera holds a Master’s in International Management from RSM Rotterdam and a Bachelor’s in Business Administration from the University of St. Gallen.

Parth Shah is a Vice President at Pegasus. Prior to joining Pegasus, Mr. Shah was an Investment Executive in the Infrastructure & Climate Group at CDC Group Plc (soon to British International Investment plc), a leading DFI. Mr. Shah has extensive experience in sourcing, managing, and exiting infrastructure assets, including over ten years of investment experience, with seven years in climate infrastructure investing in developing markets in Africa and Asia.

Mr. Shah has worked on several transactions, across a variety of climate infrastructure sectors, including renewable energy, digital infrastructure, and agriculture, amounting to more than $350m of in emerging markets. Mr. Shah is a graduate of the Wharton School at the University of Pennsylvania and holds the CFA charter.

With over 25 years of working experience in the investment space, Peter is a veteran technology and impact investor with experience investing in both private and public companies across Asia, U.S. and Europe. As an early investor in the impact sector (water, energy and agriculture), Peter has led more than 20 deals in this area since 2003. Prior to entering the private equity sector, he was a highly ranked equity analyst at Morgan Stanley. Peter advises and sits on numerous boards in the water, technology, and agriculture/aquaculture sectors.

Mr. Sai Nellore is an experienced climate finance specialist, specialising in AFOLU sector. He is experienced in conceptualising, developing and implementing innovative forestry and natural ecosystem projects and programs. He has been involved in delivering projects to BioCarbon Fund of the World Bank, UNDP, UNEP and corporate clients. He has been actively involved in developing projects under Clean Development Mechanism, Verified Carbon Standard and Gold Standard predominantly under Afforestation / Reforestation, and REDD+ for multiple clients. Mr. Nellore graduated from Aberystwyth University with a Master’s in Business Administration specialising in International Management.

Satya S. Tripathi is Secretary-General of the Global Alliance for a Sustainable Planet.

A development economist, lawyer and changemaker with over 40 years of varied experience, Mr. Tripathi is the Chancellor of Kalinga Institute of Social Sciences – the world’s largest academic institution dedicated exclusively to indigenous people and cultures. He is also a Senior Distinguished Fellow on Innovative Finance at the World Agroforestry Centre.

He has served with the UN for more than two decades in key positions across the planet and was most recently the UN Assistant Secretary-General, Head of New York Office at UN Environment and Secretary of the UN Environment Management Group. His other strategic engagements with the UN include: Head of Human Rights Investigations for the UN in post-war Bosnia (UNMIBH); Chair of the Committees on Laws, Treaties and Administrative matters for the UN-mediated Cyprus unification talks in 2004; UN Recovery Coordinator for Aceh and Nias where he facilitated international cooperation and funding of over US$ 7 billion for post-tsunami recovery efforts in support of the government and affected populations; and Executive Head of UNORCID, a UN System Office established by the UN Secretary General in 2011 to facilitate the implementation of a US$ 1 Billion REDD+ partnership between Indonesia, Norway and other stakeholders.

Mr. Tripathi was instrumental in establishing the Tropical Landscapes Finance Facility (TLFF) in Indonesia in 2016 and the Sustainable India Finance Facility (SIFF) in 2017 to leverage ‘private finance for public good’ at mega-scale to achieve transformative social and environmental impact for millions of people in developing countries. He previously served on the World Economic Forum’s Global Agenda Council on Forests.

Ambassador Nafo has made significant technical contributions to Africa’s sustainable development agenda over the last decade; particularly in fighting climate change, promoting renewable energy and mobilization resources.

Currently, serving as Technical Coordinator of the African Union Adaptation Initiative (AAI), Amb. Nafo is also a Alternate Member on the Green Climate Fund Board (2022-2024), as well as GoodWill Ambassador for Resource Mobilization at the African Union Green Great Wall Initiative (GGWI) since 2019. He is a Senior Adviser to H.E. Jean-Pierre Elong Mbassi, Secretary General  of United Cities and Local Governments of Africa (UCGLA)

In September 2020, he was invited H.E. Antonio Guterres to join the UN Secretary General High-Level Advisory Group on Climate Action.  Early 2020, he was appointed by CEO Patrick Verkoiijen as the Senior Adviser for Africa of the Global Center on Adaptation, which manages the Global Commission on Adaptation chaired by Ban Ki-moon and co-led by Kristalina Georgieva and Bill Gates.

In the UN climate negotiations, Amb. Nafo served as Chair of the African Group of Negotiators (AGN, biennial 2016-2017) and served as the AGN Spokesperson for over a faced (2011-2022).

Ronen Gani is an Operating Partner at Pegasus, focusing on renewable energy investments for the Subnational Climate Fund.  Prior to joining Pegasus, Mr. Gani was a co-Founder, Chief Financial Officer and Chief Operating Officer of Impala Energy Group, an established African power platform with a focus on natural gas-renewable hybrid power and thermal energy generation.  Mr. Gani has over 20 years’ experience in business development, finance, investing and accounting in the gas and energy industry.  Mr. Gani is a qualified accountant with over seven years of Big 4 experience, including commercial negotiations, transaction structuring and establishing financial governance.

Terry Tamminen provides sustainability and policy advice across the Pegasus portfolio. He is a member of the firm’s Sustainability Committee. Mr. Tamminen was appointed CEO of the Leonardo DiCaprio Foundation in 2016.  Mr. Tamminen is one of the nation’s leading authorities on environmental policy. Governor Arnold Schwarzenegger appointed Mr. Tamminen Secretary of the California Environmental Protection Agency in November 2003, and Cabinet Secretary, the chief policy advisor to the Governor, in December 2004. He now advises California Governor Jerry Brown on energy and environmental policy matters and serves as an advisor to several other governors, Canadian Premiers, European Union leaders, and environmental organizations. Mr. Tamminen is the author of several books on environmental policy, is a sought-after international lecturer on climate control and energy issues and has received numerous awards and honors for his achievements. He is the co-founder and Executive Board member of the R20 Regions of Climate Action, a new public-private partnership among more than 100 regional governments, the United Nations, and numerous clean technology companies focused on low carbon economic development worldwide. The UK’s Guardian newspaper named Mr. Tamminen one of “50 People Who Could Save the Planet.”

Tim Corfield is an Operating Partner at Pegasus, focusing on renewable energy investments for the Subnational Climate Fund.  Prior to joining Pegasus, Mr. Corfield led the Impala Energy Group, an established African power platform with a focus on natural gas-renewable hybrid power and thermal energy generation.  Mr. Corfield has over 30 years’ experience in infrastructure delivery across engineering, development, construction, finance, operations and maintenance.

Ulrike Schambeck is the Controller of Pegasus. Previously, Ms. Schambeck was a Senior Associate, Assurance – Capital Markets at PricewaterhouseCoopers, LLP in New York. She also worked for Sparkasee Regensburg, a bank in Regensburg, Germany, from 1978 to 1993. Ms. Schambeck attended Westminster College earning a combined Bachelor’s degree and an M.B.A. in 1997. She is also qualified as a Certified Public Accountant.

Veronica brings over 11 years of experience in corporate responsibility, international development, and impact investment. She holds a Bachelor of Commerce from the University of Melbourne and an M.S. in Sustainability Management from American University.

* Operating Partners, Operating Advisors and Strategic Advisors are not employees of Pegasus.  They provide services to certain investments funds affiliated with Pegasus Capital Advisors, L.P., including identifying, sourcing, evaluating and analyzing prospective transactions, providing strategic insights and operational support related to portfolio companies, prospective portfolio companies, management teams, industries, sectors, regulations, market trends and other matters.  See Pegasus’ latest form ADV for additional information.