The publishing and editorial teams would like to thank the following, for their invaluable service as 2021 reviewers for this journal. We are very grateful for the contributions made. With their help, the journal has been able to publish such high-quality articles:

• Abdul Rahim, Abd. Rahman
• Accorsi, Riccardo
• Afum, Ebenezer
• Agarwal, Aashish
• Agarwal, Nishtha
• Agarwal, Sachin
• Agrawal, Ashish
• Agrawal, Rohit
• Agrawal, Sunil
• Ahemd, Essia Ries
• Akram, Vaseem
• Al-Dhaafri, Hassan
• Alawamleh, Mohammad
• Albertin, Marcos
• Ali, Jabir
• Ali, Sadia Samar
• Ali, Syed Mithun
• Alstete, Jeffrey
• Ardhanari, Sivakumar
• Ardolino, Marco
• Arya, Vikas
• Awan, Usama
• Baah, Charles
• Bag, Surajit
• Bahuguna, P. C.
• Balasubramanian, Girish
• Balla, Sudarshan
• Bandyopadhyay, Prabir Kumar
• Bangar Raju, Totakura
• Behl, Abhishek
• Belal, H. M.
• Bhadury, Joyendu
• Bhandal, Rajinder
• Bharathi S., Vijayakumar
• Bialkova, Svetlana
• Biswas, Abhijeet
• Bodhi, Rahul
• Butt, Atif Saleem
• Chaubey, Akriti
• Costa Melo, Isotilia
• Dal Forno, Ana Julia
• Damle, Madhavi
• Dave, Dinesh S.
• De, Arkajyoti
• Deus, Rafael
• Devi, Yashoda
• Dhamija, Pavitra
• Dhingra, Sanjay
• Dhir, Sanjay
• Di Caprio, Debora
• Dohale, Vishwas
• Dubey, Rameshwar
• Dutta, Pankaj
• Evans, Martin
• Faisal, Mohd. Nishat
• Fettermann, Diego
• Fettermann, Diego
• Fiorini, Paula
• Foropon, Cyril
• Fournier, Pierre-Luc
• Gawroński, Sławomir
• Ghosh, Piyali
• Gobbo, Simone
• Goodarzian, Fariba
• Gupta, Amit
• Gupta, Himanshu
• Gupta, Narain
• Gupta, Sandeep
• Gupta, Shivam
• Haddoud, Mohamed Y.
• Helo, Petri
• Hossain, Md Kamal
• Hudnurkar, Manoj
• Ilyas, Ashiq
• Islam, K M Baharul
• Jabbour, Charbel
• Jain, Vineet
• Jain, Vipul
• Jana, Rabin
• Jha, Chandan
• Jha, Jatinder Kumar
• Jhamb, Deepika
• Jharkharia, Sanjay
• Joshi, Gauri
• Joshi, Yatish
• Jugend, Daniel
• Kadam, Sanjeev
• Kamble, Aakash
• Kamdjoug, Jean Robert Kala
• Kansara, Surendra
• Kapoor, Madhavi
• Kar, Arpan
• Kar, Arpan
• Kashav, Shashi
• Khanna, Kamal
• Kharat, Manoj
• Kim Jesus, Gessica Mina
• Kiran, G.
• Kostopoulos, Ioannis
• Kumar, Anil
• Kumar, Arun
• Kumar, Pravin
• Kumar, Vimal
• Kumari, Rashmi
• Kumari, Sneha
• Kuppuswamy, Saravanan
• Laguir, Issam
• Lizarelli, Fabiane
• Luong, Huynh
• Luthra, Sunil
• Majumdar, Abhijit
• Malik, Manzoor
• Manatkar, Ramkrishna
• Mandal, Santanu
• Mathivathanan, Deepak
• Mishra, Himani
• Mishra, Mamta
• Mittal, Amit
• Modgil, Sachin
• Mogha, Sandeep
• Mohanty, Rajendra Prasad
• Mor, Rahul
• Niemi, Petri
• Padun, Abhijit
• Paluri, Ratna
• Pandey, Shipra
• Parameswar, Nakul
• Paraskevadakis, Dimitrios
• Parhi, Shiba Prasad
• Parkhi, Shilpa
• Pathak, Devendra Kumar
• Pimenta, Márcio
• Prakash, Anand
• Pratap, Saurabh
• Queiroz, Maciel
• Raj, Alok
• Rajagopal, Rajesh
• Rajaratnam, Dan
• Rajendran, C.
• Raman, R
• Ramos, Edgar
• Raut, Rakesh
• Reyes, Giovanni E.
• Rostamzadeh, Reza
• Rupp, Florian
• Sahu, Atul
• Santos-Arteaga, Francisco
• Sarkar, Anita
• Sehnem, Simone
• Sethi, Deepa
• Shahgholian, Azar
• Shaikh, Ateeque
• Sharma, Abhishek
• Sharma, Prayas
• Sharma, Priyanka
• Shastri, Rajesh
• Shekarian, Ehsan
• Sheorey, Pratima
• Singh, Nitya
• Singh, Noopur
• Singh, Rajesh
• Singh, Rajesh
• Singh, Rohit
• Singh, Sarabjit
• Singh, Sujeet Kumar
• Singh, Surya Prakash
• Singh, Tripti
• Singhal, Shakshi
• Sinha, Vinita
• Spanaki, Konstantina
• Sreedharan V, Raja
• Srivastava, Gautam
• Srivastava, Rajesh
• Sundarakani, Balan
• Sunil Kumar, C. V.
• Suresh, M.
• Talapatra, Subrata
• Tandon, Ayushi
• Tandon, Priyanka
• Thuramamidi, Chakradhar
• Tiwari, Aruna
• Tiwari, Saurabh
• Tortorella, Guilherme
• Trivedi, Ashish
• Tsolakis, Naoum
• Upadhyay, Nitin
• Upadhyay, Parijat
• Venkatesh, V. G.
• Verma, Pratima
• Verma, Priyanka
• Verma, Rohit
• Wali, Sonda
• Walker, Nathan
• Wang, Yuan
• Ware, Nilesh
• Warrier, Uma
• Wilson, Hannah
• Yadav, Nikhil
• Yadav, Sachin
• Yakovleva, Nataliaeshu