Former employers

• Haarlems Dagblad
• Geassocieerde Persdiensten (GPD)
• NRC Handelsblad
• Quote
• Intermediair

Companies and governments

• TU Delft (technical university)
  
• FNV Bondgenoten (federal workers union)
  
• AbvaKabo
• CBS (Dutch Statistical Office
  

• Rekenkamer Z-O Nederland
  
• Belastingdienst (Dutch Tax Department)
  
• Kamers van Koophandel
• KIWA
  

• TenneT
  
• Nederlandse Zorg Autoriteit
  
• Centraal Justitieel Incassobureau
• Royal Academy of Art (The Hague)
  

• Déhora
  

Universities and courses

• ‍Thomas More University of Applied Sciences in Mechelen (Belgium)
  
• Vrije Universiteit Brussel (VUB)
  
• Fontys University of Applied Sciences in Tilburg (Netherlands)
• Vrije Universiteit Amsterdam (VU)
• Rijksuniversiteit Groningen (RUG)
  

• University of Amsterdam (UvA)
  
• Erasmus Universiteit Rotterdam (EUR)
  
• Institut des Hautes Etudes des Communications Sociales (IHECS) in Brussels
• Internationale Research Journalistiek (Fonds Pascal Decroos/Fontys Hogeschool)
• De Redactie in Amsterdam/Monnickendam
  

• Hogeschool Utrecht
  
• Academie voor de Periodieke Pers (Vlaanderen)
  
• PGO Academy in Utrecht
• Persacademie (Fontys Hogeschool voor Journalistiek)
• Radio Netherlands Training Centre (RNTC)
  

• OpenEyes/VersPers
  
• The Centre for Investigative Journalism (CIJ) in London
  

Media

• De Volkskrant (Dutch national newspaper)
  
• NRC Handelsblad (Dutch national newspaper)
  
• De Standaard (Belgian national newspaper)
• Noord-Hollandse Dagbladcombinatie (newspapers)
• PZC en BN/De Stem (Dutch local newspapers)
  

• Dagblad van het Noorden (Dutch regional newspaper)
  
• NOS (Dutch public broadcasting)
  
• VARA/VPRO
• Uppdrag granskning (Mission investigate), Swedish Television
• MTNL (multicultural broadcasting organisation)
  

• Evangelische Omroep (Evangelic Broadcasting Corporation)
  
• Budhist Broadcast Organization
  
• Mitteldeutscher Rundfunk (MDR)
• Telefakts (Belgium television)
• SCOOP Macedonia
  

• The Centre for Investigative Journalism (London)
  
• Correctiv! (Berlin)
  
• Frontline Club (London)
• Független Médiaközpont Center for Independent Journalism (Budapest)
• Zweites Deutsches Fernsehen (ZDF)
  

• ITV/ITN
  
• European Journalism Centre
  
• Vice
• Arab Reporters for Investigative Journalism (ARIJ)
  

• Mediahuis (News Paper Publisher)
  
• NPO (Dutch Public Broadcaster)
  

• VMN Media
  

• AT5
  

• Fonds voor Bijzondere Journalistieke Projecten
  

• Journalism Fund Europe
  

• Stimuleringsfonds voor de Journalistiek
  

NGOs

• Greenpeace
  
• Friends of the Earth Netherlands (Milieudefensie)
  
• Prakarsa (Jakata)
• Amnesty International
  

• Environmental Justice Foundation
  

• Oxfam
  

• Dozens of patient organisations
  

Lectures and workshops

• Center for Independent Journalism in Budapest (training to Hungarian investigative reporters in October 2008)
  
• SCOOP (training to reporters in the Ukrain, in Kiev, in 2008)
  
• OSCE (training to reporters in Serbia, in Belgrade, in June 2009)
• BIRN (Summer School for investigative reporters on the Balkan, in Novi Sad, August 2010)
  

• Arabic Reporters for Investigative Journalism – ARIJ (teaching reporters in the Arab world)
  
• Global Investigative Journalism Conference 2007 in Toronto
  
• International Conference on Investigative Reporting in East and South East Europe in Budapest 2007
• Global Investigative Journalism Conference 2008 in Lillehammer
  

• European Investigative Journalism Conference in Brussels in 2008
  
• Conference on Investigative Reporting in Kiev (Ukraïn) in 2008
  
• SKUP Conference 2010 in Tønsberg, Norway
• Global Investigative Journalism Conference in Geneva in 2010
  

• Global Investigative Journalism Conference in Kiev in 2011
  
• London Summer School for Investigative Journalism 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023 at Goldsmiths University in London
  
• African Power Reporting Conference in Johannesburg in 2010, 2011 and 2012
• Netzwerk Recherche Conference, Hamburg, Germany 2012 en 2013
  

• Data Harvest Conference in Brussels, 2014, 2015, 2016, 2017, 2018, 2019, 2022 and 2023
  
• IRE Conference 2014 (San Francisco), 2015 (Philadelphia)
  
• NICAR Conference 2018 in Chicago
• Global Investigative Journalism Conference 2019 in Hamburg
  

• Double Exposure Investigative Film Festival and Symposium (online), October 2020
  
• VVOJ conferenties since 2005
  

• Data Skup Norway 2021, 2022 and 2023
  

• Summer School for Investigative Journalism, SSE Riga 2022
  

• Global Investigative Journalism Conference 2023 in Göteborg
  

Books

• Luuk Sengers (ed.), Handboek voor onderzoeksjournalisten. Van vermoeden tot verhaal, VVOJ/Betram+DeLeeuw 2022
  
• Mark Lee Hunter and Luuk Sengers, Investigating Sustainable Development, A guide and method for advancing investigative journalism and SDG, Unesco 2022
• Mark Lee Hunter and Luuk Sengers, with Marcus Lindemann, Modern Investigative Journalism. A Comprehensive Curriculum Based on the ARIJ Method, ARIJ 2019
  

• Luuk Sengers en Mark Lee Hunter, Drehbuch der Recherche. Das verborgene Szenario, Netzwerk Recherche
  
• Mark Lee Hunter and Luuk Sengers, The Story Tells the Facts: Structuring and Composing Investigative Narratives, The Centre for Investigative Journalism, London 2013
  
• Luuk Sengers and Mark Lee Hunter, The Hidden Scenario: Plotting and Outlining Investigative Stories, The Centre for Investigative Journalism, London 2012

• Mark Lee Hunter, Luuk Sengers and others, Story-Based Inquiry: A Manual for Investigative Journalists, Unesco 2009
  
• Luuk Sengers (ed.), Onderzoeksjournalistiek. Researchproces van idee tot verhaal, Lannoo Campus 2009