HELA has been honored to host many distinguished and well-known politicians, economists, lawyers, diplomats and scholars that either practice in Europe or focus on Europe in their professional lives. These include:
- Georg Nolte – Chairperson of the International Law Commission
- José Manuel Durão Barroso – President of the European Commission,
- Koen Lenaerts – Vice-President of the Court of Justice of the European Union,
- Paul Boateng – British High Commissioner to South Africa,
- Robert Cooper – Director General for External and Politico-Military Affairs at the Council of the European Union,
- Joschka Fischer – former Vice Chancellor and Foreign Minister of Germany,
- Lech Garlicki – judge of the European Court of Human Rights,
- Manuel Antonio Gomes de Almeida de Pinho – Minister of Economy and Innovation of Portugal,
- Dieter Grimm – former Justice of the Constitutional Court of Germany,
- Marko Ilešic – judge of the European Court of Justice,
- Petr Kolar – Czech Ambassador to the United States,
- Richard Morningstar – former US Ambassador,
- John T. Noonan, Jr. – Justice of the US Court of Appeals for the 9th Circuit,
- Angelos Pangratis – deputy head of the European Commission Delegation to the US,
- Esa Passarvita – legal advisor at the European Commission Delegation to the UN,
- Andris Pielbalgs – Commissioner for Energy, Commission of the European Union,
- Luís Miguel Poiares Pessoa Maduro – Advocate General of the European Court of Justice
- Jacek Saryusz-Wolski – Chairman of Committee on Foreign Affairs, European Parliament,
- Jamie Shea – Policy Planning Director at the Secretary General’s office, NATO,
- Chiara Zilioli – Deputy General Counsel, European Central Bank.