About-us
The Regenerative Development Group (RDG) is dedicated to advancing regeneration.
We are a team of experienced professionals who contribute to creating a world where nature and communities thrive. We are sustainable development strategists and implementers, program-, fund-, and venture-builders, philanthropy and finance professionals dedicated to advancing regenerative development.
Meet the Team
The Regenerative Development Group was founded by Tammy Tullis and Jean-Louis Robadey. Tammy, a sustainable finance expert, and Jean-Louis, a grassroots sustainable development professional, came together driven by the belief that a combination of program excellence, regenerative entrepreneurship, and finance in all its forms can enable a future where all life thrives.
Tammy Tullis is the CEO and RDG’s sustainable finance lead. Ms. Tullis has over three decades of experience in institutional finance, mostly as a buy-side investor. She has a deep understanding of emerging market countries, their development stage, risks and opportunities. She knows how to price risk and what would be attractive for different classes of investors. Early on in her career, she managed new global bond issuance (syndication) and structured private bond placements. She is now on a mission to accelerate the flow of financial resources toward initiatives that regenerate land, the sea, and its communities.
Tammy is an expert in blended finance, providing policy advice and designing financial mechanism not only for Governments, but also for landscapes, in collaboration with the local community, CSOs, and other applicable stakeholders. She believes in integrated landscape management and is passionate about equitable financial distribution.
Ms Tullis’ favorite pastime is long dinner parties at home with great friends, good food and wine. She speaks two Chinese languages and is fluent in English.
Glen Hearns is a geologist and an experienced project leader. He has worked in over 25 countries throughout the globe on a variety of multi-national development agency assignments related to water, energy, mining and health. With over 30 years of professional work in resource management, decision making, conflict resolution and strategic planning, he brings a wealth of experience to the table. Further, Glen is an evaluation specialist with a focus on trans-jurisdictional management. He has a particular interest in water, energy, forest and ecosystems, benefit sharing, climate change mitigation and adaptation methods.
Glen enjoys living on a remote Canadian island with his wife, children, sheep, chickens and other animals. As a hobby, he likes to teach physics to high school students. Glen is fluent in English and French and advanced in Portuguese and Spanish.
Carla Serrao is an expert in sustainable development, financial inclusion, an outstanding communicator, gifted in policy advisory and guiding stakeholder collaborations through complex projects to reach common objectives. She has worked over 24 years of international development leadership with Ministries, multi-national development agencies and the private sector. She has the capacity to link local to regional to national processes, for extraordinary results-orientated success. Carla is most passionate about poverty reduction, serving the MSMEs, the informal sector, and the most vulnerable in society, inclusive of women and youth.
Carla loves to surf in Angola, laughs loud and lives by the beach in Portugal. Ms Serrao is fluent in Portuguese and English and is advanced in French and Spanish.
Juan Albarracin-Jordan has been a social and environmental standards (SES) specialist and an environmental anthropologist for over 20 years. He works extensively with UNDP and the World Bank on projects globally, to ensure the integration of social and environmental principles and standards in project concept, design and implementation, inclusive of risk identification, compliance with UNDP social and environmental standards, and quality assurance of Vertical Funds (GCF and GEF) financed projects.
Juan is passionate about human rights and provides advisory services inclusive of cultural heritage (tangible and intangible), indigenous peoples, involuntary resettlement, and community health, safety, and security. Juan is Bolivian and is fluent in English and Spanish and advanced in German.
Jean-Louis Robadey supports non-profit leaders, social entrepreneurs, philanthropists, mission investors, and public sector leaders as a strategist, management consultant, program development advisor, fundraiser, and partnership builder, with a focus on climate, conservation, and place-based regenerative development initiatives. In delivering these services, Jean-Louis leverages a 30-year track record advancing social and environmental impact initiatives as a non-profit, philanthropic, public sector, and corporate responsibility executive and advisor.
Jean-Louis was a co-founder of the RDG and is currently an associate consultant/partner. He lives in Seattle and Geneva, and speaks English, French and Italian fluently.
Neal Spackman is an ecologist. He makes dead places come back to life and has deep experience reversing degradation across multiple ecosystems and in intra-ecosystem endeavors. Neal is a creative and entrepreneurial problem solver with over 15-years’ experience integrating ecosystem restoration with livelihood and enterprise development. He has led or advised projects across multiple ecologies and multiple countries, from desert watersheds in Saudi Arabia and UAE, to mangroves in Gambia and Mexico, to grasslands in Kazakhstan and Texas. Neal understands Carbon projects and has been in the forefront of Biodiversity credit development.
Neal is a UNFCCC Impact Maker, a Stanford University Tomkat Innovation Fellow, and winner of a Makkah Prize for Sustainable Development. Neal is passionate about regenerative development and is fluent in English and Arabic.
Partner Network
Regeneration relies on deep, diverse, inter-disciplinary collaborations.
Regeneration is intrinsically complex, diverse, multi-disciplinary. The knowledge, know-how, and expertise needed to advance projects varies from context to context, project to project.
We build productive collaborations, partner with mission-aligned professionals, and work with a diverse group of strategic partners. These collaborations help us harness the talent and expertise that exists in the system to build diverse, inclusive, multi-disciplinary teams.
Skills included on our extensive network of advisors, experts, and partner organizations includes:
- Context knowledge within sectors, bioregions, landscapes, and cultures;
- Ecological knowledge in land use, forestry, ecological design, regenerative agriculture, seascapes, landscapes, and more;
- Social and cultural knowledge and capacity to develop effective community engagement and enable participation in a spirit of equity and inclusion;
- Technical knowledge in geographic and system mapping;
- and specialized knowledge of nature-based business, financial, and project models.
Meet our strategic partners
Regenerative Development Group 