Olaya Argüeso Pérez

Olaya Argüeso Pérez is editor-in-chief at CORRECTIV, where she leads the international investigations since 2019. 

Olaya Argüeso Pérez is editor-in-chief at CORRECTIV, where she leads the international investigations since 2019. After more than a decade reporting about economy, business and finance at the most important radio network in Spain (Cadena SER), Olaya decided to expand her expertise into data journalism and joined the Lede Program at Columbia University. After joining CORRECTIV as a reporter, she took part in cross-border investigations like The CumEx Files and Grand Theft Europe, which exposed multi billion tax frauds happening all over Europe. In 2021, together with her colleague Justus von Daniels, she was appointed Editor In Chief of the Year in Germany.

Mar Cabra

Mar Cabra is a Co-founder, chairman of the Board and trainer at The Self-Investigation.

Mar Cabra is a Co-founder, chairman of the Board and trainer at The Self-Investigation. She is a Pulitzer prize-winning journalist, digital wellness educator and Acumen fellow working on raising awareness on how technology is changing the way we interact with ourselves, each other and as a society. She writes a column in Spanish newspaper El Confidencial on this topic. She’s committed to creating a healthier working culture in journalism to prevent others from burning out like she did after leading the technology and data work for the Panama Papers investigation.

Sam Joiner

Sam Joiner leads the visual storytelling team at the Financial Times — an interdisciplinary group of journalists combining data, design, coding and reporting skills.

Sam Joiner leads the visual storytelling team at the Financial Times — an interdisciplinary group of journalists combining data, design, coding and reporting skills. The team focuses on projects where visual elements play an essential role in communicating the story, working on everything from investigations to explainers across news and features.

In 2022 the team won a Press Gazette Future of Media Award for their coverage of the Ukraine war. They have also won multiple awards for The Climate Game.

Sam was previously head of data and digital storytelling at the Times and the Sunday Times.

Kai Biermann

Kai Biermann is the editor of the investigative department at Die Zeit.

He studied psychology but has long been a journalist, author, blogger and editor in the investigative department in Zeit and Zeit Online.

His work is primarily focused on IT security and surveillance. He also writes about terrorism, the secret services and police work.

Biermann received two Grimme Online Awards in 2011 for his blog and the work on the interactive graphic Verräterisches Handy.

In 2016, with a team from Zeit Online and Zeit, he got the Reporter Prize for investigations into the perpetrators who set refugee homes on fire. As a member of an international team of reporters documenting the worldwide abuse of NSO’s Pegasus spy program, he won several international awards.

Biermann is the author of several non-fiction books. With Thomas Wiegold, he co-authored ‘Drones – Opportunities and Dangers of a New Technology’.

Friedrich Lindenberg

Friedrich Lindenberg is a coder and data journalist working on web technology for new narrative and investigative techniques.

He’s currently building OpenSanctions, a global database of persons of journalistic interest.

Previously, Lindenberg led the data team at OCCRP. He was responsible for the development of OCCRP Aleph and also supported ongoing investigations where data analysis was needed. In 2014/2015, he was a Knight International journalism fellow with the International Center for Journalists, working with the African Network of Centers for Investigative Reporting (ANCIR), and in 2013 he was a Knight-Mozilla Open News fellow at Spiegel Online in Hamburg. Prior to that, Friedrich Lindenberg was an open data activist, and worked to promote the release of government information about public finance, lobbying, procurement and law making across the world.

Ahmad Al-Bazz

Ahmad Al-Bazz is a Palestine-based independent journalist and documentary filmmaker focusing on Palestinian-Israeli affairs.

His work appears in several media outlets such as +972 Magazine, Mondoweiss, and UltraSawt. Since 2012, he has been a member of the Activestills photography collective, which operates in Palestine/Israel.

In 2020, he was shortlisted for the Thomson Foundation Young Journalist Award. Between 2015-2019, two of his short documentaries received several regional and international awards, such as the Al-Jazeera Documentary Channel Award for Best Arab Short Doc (2015) and the Alexandria Short Film Festival Award (2019).

Ahmad holds a BA degree in Journalism from An-Najah National University in Palestine and an MA in Television Studies from the University of East Anglia in England.

Lina Kushch

Lina Kushch is a journalist, media expert, and media trainer with more than 25 years of experience.

Throughout her career, Lina has contributed to Reuters and the BBC and was also the head of the regional correspondents’ department in the all Ukrainian newspaper Golos Ukrainy till 2018.

She is also an expert in covering armed conflicts and migration issues. Until
2014 she lived and worked in Donetsk, Eastern Ukraine, and had to leave her
home after the city had been occupied by pro-Russia forces.

As the First Secretary of the National Union of Journalists of Ukraine since 2018, she coordinates the work of 24 regional offices with 18,000 members. From the first days of the Russian invasion in February 2022, the union has launched several Journalists’ Solidarity Centers in Western Ukraine with the support of international partners.

As a member of the Commission on Journalistic Ethics (Ukraine), she is also a co-author of several journalistic ethics and journalistic practice publications.

Milica Stojanovic

Milica Stojanovic is a journalist for BIRN's Balkan Insight and Balkan Transitional Justice. She also regularly holds digital security training for local journalists in Serbia.

Before joining BIRN, Milica worked, for five years, at the Center for Investigative Journalism of Serbia (CINS), where she covered topics such as the judiciary, energy and public spending. Prior to CINS, Milica worked as a journalist and the daily/weekend editor at the online news portal Telegraf.rs.

As a member of CINS team, she won the 2017 European Press Prize for investigative journalism. She got an annual award for investigative journalism in 2015 from the Independent Association of Journalists of Serbia. She holds seven domestic and international awards in total, alone or as a member of CINS team, for stories about the judiciary, corruption, or the environment.

Milica has MA in Journalism from the Faculty of Political Sciences, University of Belgrade. She speaks Serbian and English.

Claudia Ciobanu

Based in Warsaw, Claudia is a Balkan Insight correspondent reporting on political and social developments in Poland.

Claudia has been a journalist for a decade, starting out at the Romanian national daily, Cotidianul, before moving to cover Central and Eastern Europe as a freelancer for various international outlets. Her articles have appeared in The Guardian, Reuters and Al Jazeera. She is particularly interested in social movements, frontline communities and illiberal regimes.

Claudia won the first prize in the 2018 Balkan Fellowship for Journalistic excellence. She was a finalist in the Reporting Europe and One World Media awards.

She has MA in Political Science from the Central European University in Budapest, Hungary.

Sarah Cahlan

Sarah Cahlan is a video reporter for The Washington Post’s Visual Forensics team.

Before coming to The Post, she directed a short documentary about the historical inaccuracies of gender roles. As an NBC/NAHJ fellow, she reported, produced and wrote stories about science, tech and Latino culture. Cahlan has also covered health and the environment in California. 

Honors and Awards: 2022 Pulitzer Prize for Public Service; 2021 Alfred I. Dupont-Columbia University Award; 2020 Webby Award for Best Individual Feature ; 2020 Online Journalism Award Features finalist; 2020 International Fact Checking Network for Best Format; 2019 North Gate Award for Excellence in Documentary Production; 2018 National Association of Black Journalists, Salute to Excellence; 2018 Excellence Award, Robert Whittington Award for Exceptional Reporting

Professional Affiliations: National Association of Hispanic Journalists.