We are happy to acknowledge here the people who contributed to the development of PLAsTiCC. **PLAsTiCC team:** Tarek Allam Jr.* (University College of London, UK) Anita Bahmanyar (University of Toronto, Canada) Rahul Biswas (Stockolm University, Sweden) Mi Dai (Rutgers, The State University of New Jersey, USA) Lluís Galbany (University of Pittsburgh, USA) Renée Hložek (Univeristy of Toronto, Canada) Emille E. O. Ishida (CNRS/Universite Clermont Auvergne, France) Saurabh W. Jha (Rutgers, The State University of New Jersey, USA) David O. Jones (University of California Santa Cruz, USA) Michelle Lochner* (African Institute for Mathematical Sciences, South Africa) Ashish A. Mahabal (California Institute of Technology, USA) Alex I. Malz* (New York University, USA) Kaisey S. Mandel (Cambridge University, UK) Juan Rafael Martínez-Galarza (Harvard-Smithsonian Center for Astrophysics, USA) Jason D. McEwen (University College of London, UK) Daniel Muthukrishna (Kavli Institute for Cosmology, UK) Gautham Narayan (Space Telescope Science Institute, USA) Hiranya Peiris* (Stockolm University, Sweden) Christina M. Peters (University of Toronto, Canada) Kara Ponder (University of California Berkeley, USA) Christian N. Setzer* (Stockolm University, Sweden) *These researchers are part of the PLAsTiCC team focusing on metric selection and competition design, they did not have a role in producing, seeing, nor validating the data, and as such are allowed to compete in the challenge fully. **Modelers:** In addition, the PLAsTiCC data set generation relied on numerous members of the astronomical community who provided models of astronomical transients and variables. While we cannot thank them by name at this point, we acknowledge here their anonymous contributions - which will be disclosed once the competition is over.