Dr. Cornelia Tremann

Founder

Heartie Look

Founding Executive Director

Dr. Katharina Schiller

Sustainability

Dr. Marie Spreckley

Health

Cornelia loves executing visions and strategies, and helping others succeed - especially women! Always an ardent supporter of gender equality, reading the book "Invisible Women" ignited her passion to do something to help make the world a better place for all women and start Investress. She has spent her career living and working in Africa (with long stints in Madagascar, Senegal, and Gabon) on entrepreneurship support, private sector development, and blended finance initiatives for bilateral and international donors and development finance institutions including the United States Agency for International Development (USAID), United Nations (UN), International Finance Corporation (IFC), and the Australian Department of Foreign Affairs and Trade (DFAT), as well as many non-governmental organizations (NGOs) and consulting firms such as Dexis, Counterpart International and Moonshot Global. She is also a partner at Acumen, and an aspiring pilot.

Heartie’s North Star is to advance a world where all people have a voice, equal opportunity, and lead empowered lives. She combines visionary leadership with operational rigor to drive sustainable impact on society’s toughest challenges, and has done so with organizations including Acumen, Conservation International, South by Southwest Eco, and NationSwell. Her expertise includes working with cross-functional teams to design and deliver program infrastructure and strategy, multi-sector fundraising and partnerships, and marketing and communications initiatives. Grounded in field experience in the U.S. and Latin America— including with a female worker cooperative in Argentina and youth education in Nicaragua—she believes women’s proximity to community challenges positions them as powerful leaders and innovators. This insight fuels her passion to close the gender finance gap and support female founders in creating what women, and the world, need next.

Our advisors

Christopher Tremann

Tech

Based in London, Marie has extensive experience leading research and healthcare initiatives across academic, clinical, and industry settings. Having worked at the University of Cambridge, the University of Oxford and Queen Mary University of London, as well as the U.K. National Health Service (NHS) and private healthcare settings, she brings deep expertise in clinical research, public health, and programme management. With a strong track record of translating scientific research into real-world healthcare solutions, Marie brings her broad scientific knowledge and strategic insight to her role on the Investress advisory board.

Based in Mexico City, Katharina brings deep experience driving sustainability and innovation in global food systems. She has worked with leading institutions including the International Maize and Wheat Improvement Center (CIMMYT), the Fraunhofer Institute for Systems and Innovation Research (ISI), and the International Center for Tropical Agriculture (CIAT) across Latin America, Southeast Asia, Africa, and Europe. Trained as an agricultural sustainability scientist, Katharina brings deep expertise in agroecology, systems change, and equity to her advisory roles and international collaborations.

Christopher combines his tech and government experience to affect positive change in the impact investment space. He culminated his 20+ year diplomatic career as the U.S. Deputy Chief of Mission and Chargé d’Affaires, a.i. (acting Ambassador) to the Gabonese Republic and the Democratic Republic of São Tomé and Príncipe. He has worked both with tech startups and major corporations such as Silicon Graphics, Inc and is well-versed in A.I., blockchain, and other disruptive technologies. He is the founder of Tenax Media, an independent media production company that tenaciously tells stories that need to be told.