The most frequent collaborator has been Professor Giuseppe Piccione, a research veterinarian from the University of Messina, in Sicily (Italy).

Collaboration was also initiated with Professor Gianluca Tosini, a molecular biologist at Morehouse School of Medicine, in Atlanta (Georgia).

Dr. Mamane Sani, from the University of Maradi (in Niger, West Africa) visited the lab as a postdoctoral fellow under the Fulbright Visiting Scholar Program for six months in 2014 to enhance his skills in chronobiological methods of time series analysis.

For several years, the lab had the the honor of collaborating in various projects with Professor Franz Halberg, one of the forefathers of circadian physiology and the creator of the term circadian. Still active in research and scholarship past his 90th birthday, Halberg passed away in June 2013.

Dr. Refinetti's graduate adviser was Professor Harry Carlisle, at the University of California, Santa Barbara. The research area was thermal biology.

Dr. Refinetti's postdoctoral adviser was Professor Michael Menaker, at the University of Virginia. The research area was circadian biology.