Managing Partners

Thomas Seghezzi

mem1Thomas Seghezzi has gathered 25 years of professional experience in private business, NGOs and Government, both abroad and in Switzerland. After graduating in business administration at the University of St. Gallen (HSG), he started his career in Marketing- and Human Resources posts in industry and services companies in Switzerland.

He then engaged during six years in humanitarian work for the International Committee of the Red Cross (ICRC), doing missions as coordinator and delegate in Africa, Former Yugoslavia and Northern Caucasus. Between 2000 and 2004, he held the function of Senior Manager Human Resources with the Union of European Football Associations (UEFA).

In 2005, he joined the South African Embassy in Switzerland, heading its Trade and Investment promotion unit during more than 3 ½ years, promoting business between South Africa and the Southern African region and Switzerland.

He joined rainbow unlimited gmbh in November 2008 as Managing Partner. Since 2010 Thomas is also a Managing Director of the Swiss-African Business Circle.

Michael Rheinegger

mem2Michael Rheinegger has 9 years of professional experience in trade & investment promotion, international project management, business development and international relations both abroad and in Switzerland. He holds a Master’s Degree in Political Science from the University of Berne and a Certificate of Advanced Studies in Corporate Finance from the Swiss Banking Institute of the University of Zurich.

As part of his formation he spent 6 months as an Intern/Trainee at the State Secretariat for Economic Affairs (SECO) as well as a few months both at the World Bank Country Office in Guatemala as well as at the Swiss Embassy in Chile.

In 2005 Michael joined the Trade and Investment Section of the South African Embassy in Switzerland as a Project Manager.

In May 2008 he founded rainbow unlimited gmbh as Managing Partner. Since 2010 Michael is also a Managing Director of the Swiss-African Business Circle. Between 2011 and 2012 he was a board member of an agribusiness company in Mozambique on behalf of the Swiss majority investor.

Team Members

Project Manager

Nadja Batista


Nadja Batista joined rainbow unlimited GmbH in September 2016 as a Project assistant for the Africa CEO forum. Since May 2017, she is working as a Project Manager.Nadja was born in Brazil and grew up in Switzerland and has both nationalities. She holds a Bachelor of Arts degree in International Relations and a Master of Arts degree in Socioeconomics both from the University of Geneva (UNIGE).

Prior to joining rainbow unlimited, she worked as a sales manager and business development consultant at M&O Partners in Brazil for 5 years, developing strong competencies in relationship management, sales and marketing as well as project and partnership development. She speaks French, English, Portuguese, Spanish, Italian and has a good knowledge of German.

Senior Project & Event Manager

Virginie Bays

Virginie Bays has 10 years of professional experience in international project and event management, multi-stakeholder community building, international relations and social entrepreneurship. She holds a Master’s in Business and Languages from the University Jean Moulin of Lyon, France, and a BA (Hons) in Business from Wolverhampton University, United Kingdom.

She joined rainbow unlimited GmbH in November 2016 as a Senior Project & Event Manager. Prior to joining rainbow unlimited, she was a Project Manager at the World Intellectual Property Organization (WIPO), focusing on organizing events and developing projects for the diplomatic community.

In 2007, Virginie joined the World Economic Forum where she was responsible for the Africa and Latin America regions within the Forum of Young Global Leaders. During her time at the Forum, she coordinated the nomination and selection process for this young cohort and developed educational programmes and partnerships.

Prior to that she was a Project Manager for the Latin America region at the Schwab Foundation where she steered the selection process for the Social Entrepreneur of the Year in Latin America. She speaks French, English, Spanish, Portuguese and has advanced notions of Russian.

Project & Event Manager

Helina Bischoff

mem1Helina Bischoff joined rainbow unlimited GmbH in August 2014 as Project & Event Manager for the Swiss-African Business Circle and Africa CEO Forum.

Having grown up in South Africa and with roots in Switzerland and Ethiopia, Helina completed her Bachelor of Arts degree in Politics, International Relations and French at Rhodes University in Grahamstown, South Africa. She completed a Master of Arts degree in African Studies at the University of Basel.

Prior to joining rainbow unlimited, she worked in Communications and Public & Government affairs at the Novartis Malaria Initiative and Africa Cluster. During this time, she supported in developing a communications strategy for the management team in Africa, built relationships with internal & external stakeholders, organized incoming and outgoing delegations and developed online and print communications.

Project Manager

Edgar Cizero

Edgar Cizero joined rainbow unlimited GmbH in September 2017 as a Project Manager for the Africa CEO forum. He was born in Burundi and grew up in Zambia before moving abroad for his studies. He holds an MSc. in International Political Economy from the London School of Economics and Political Science, an MA in International Economic Policy from the Paris Institute of Political Studies (Sciences Po Paris), and a BA (Hons.) in International Relations from the University of Pretoria, South Africa.

Prior to joining rainbow unlimited, Edgar worked as a Researcher for The European Centre for Development Policy Management (ECDPM) in Maastricht, Netherlands on a partnership project with The International Conference on the Great Lakes Region (ICGLR)’s Levy Mwanawasa Regional Centre for Democracy and Good Governance in Lusaka, Zambia. The project focused on the conditions in which public and private sector based employment can best contribute to stability and peace in Fragile and Conflict-Affected States. Before that, Edgar worked as a Monitoring and Evaluation Coordinator for the International Rescue Committee (IRC) in Burundi.

Investment Manager

Gwenaëlle Paris

Gwenaëlle Paris joined rainbow unlimited in November 2016 to develop and manage the rainbow investment platform.

Gwenaëlle has more than ten years of experience in finance, including in investment advisory at UBS in Switzerland and in private equity investments at Bamboo Capital Partners in Switzerland and in Singapore. Over this period, Gwenaëlle has developed a strong network of investors and worked on private equity transactions in emerging markets, including Africa, Eastern Europe and Asia.

Gwenaëlle holds a BA in Management with a major in Finance from the Université
Paris Dauphine, an MSc in Financial Markets and Investments from SKEMA Business School and an MBA from London Business School.

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