Rigorous peer-reviews are the basis of high-quality academic publishing. Thanks to the great efforts of our reviewers, Infrastructures was able to maintain its standards for the high quality of its published papers. Thanks to the contribution of our reviewers, in 2021, the median time to first decision was 14 days and the median time to publication was 35.5 days. The editors would like to extend their gratitude and recognition to the following reviewers for their precious time and dedication, regardless of whether the papers they reviewed were finally published:
| Abaza, Khaled A. | Krejsa, Martin |
| Adacher, Ludovica | Krzywinski, Kamil |
| Ahac, Saša | Kulka, Jozef |
| Ahmad, Shabir | Kurdi, Róbert |
| Ait-Ali, Abderrahman | Labi, Samuel |
| Alexandre, Jonas | Lang, Jonas |
| Al-Gahtani, Khalid | Lantini, Livia |
| Allan, Andrew | Lasota, Dorota |
| Aloisio, Angelo | Lee, Dongkwan |
| Alonso, Francisco | Lee, Jaesun |
| Al-Qutaifi, Sarah | Lee, Paul Tae-Woo |
| Alvarez, José | Leonardi, Salvatore |
| Amario, Mayara | L'Heureux, Jean-Sebastien |
| Ambroziak, Andrzej | Li, Qingbin |
| Anagnostopoulos, Costas A. | Liaw, Der-cherng |
| Andrade Pais, Luis José | Lofrano, Egidio |
| Anochi, Juliana Aparecida | Longarini, Nicola |
| Arévalo, Andrea | Lopez-Santos, Oswaldo |
| Argyroudis, Sotiris | Lorenz, Sandro |
| Ayar, Pooyan | Lozano Baez, Sergio Esteban |
| Azhari, Fatemeh | Lushnikova, Nataliya |
| Bacellar, Daniel | Mackiewicz, Piotr |
| Bae, Ihn-han | Makarova, Irina |
| Baglivo, Cristina | Manthos, Evangelos |
| Balaguru, Raja | Maraveas, Chrysanthos |
| Baliello, Andrea | Marius, Bodor |
| Baltzopoulos, Georgios | Marston, Hannah R. |
| Barabino, Benedetto | Martynowicz, Pawel |
| Barouni, Antigoni | Maruschak, Pavlo |
| Baurova, Natalia | Marzec, Michał |
| Beben, Damian | Mashaan, Nuha |
| Bernardo, Luis Filipe Almeida | Massari, Anthony |
| Bhowmik, Basuraj | Mata, Luis A. |
| Biliani, Irene | Matsumoto, Yukihiro |
| Billah, Muntasir | Mazza, Fabio |
| Boháčová, Jana | Meena, Naveen Kumar |
| Bompa, Dan | Mehmood, Rashid |
| Braymand, Sandrine | Meng, Jingjing |
| Brzeziński, Karol | Michelini, Elena |
| Burinskiene, Marija | Mieczkowski, Paweł |
| Burlacu, Adrian | Milne, David |
| Cabrera I Fausto, Ivan | Miltiadou, Milto |
| Caggiano, Antonio | Miralles, Jose Luis |
| Calì, Michele | Miranda, Marina |
| Caliendo, Ciro | Mirela, Galić |
| Canale, Antonino | Miricioiu, Marius |
| Cascardi, Alessio | Mladenović, Goran M. |
| Cavalieri, Francesco | Mohammadi, Masoud |
| Chang, Carlos M. | Mollenhauer, Konrad |
| Chellini, Giuseppe | Monteleone, Salvatore |
| Cheung, Angus K. F. | Montuori, Rosario |
| Chiaradia, Alain | Moradi, Mohammad Javad |
| Chong, Heap-Yih (John) | Moreno Bazán, Ángela |
| Chorzepa, Mi G. | Mosier, Rachel D. |
| Chui, Kwok Tai | Nazarian-Samani, Masoud |
| Čižiūnienė, Kristina | Nepomuceno, Miguel |
| Coelho, Mário R. F. | Ng, Kelvin T. W. |
| Čokorilo, Olja | Ngamkhanong, Chayut |
| Colangelo, Francesco | Ngo, Van-Linh |
| Corso Sarmiento, Juan Manuel | Noroozinejad Farsangi, Ehsan |
| Couto, António | Okraszewska, Romanika |
| Covatariu, Gabriela | Oyeyemi Olayode, Isaac |
| Črešnar, Rok | Paganelli, Filippo |
| Crespi, Manuela | Paraskevopoulou, Chrysothemis |
| Cyfert, Szymon | Pavlyuk, Dmitry |
| Da Silva, Pedro Raposeiro | Pecho, Pavol |
| D'Altri, Antonio Maria | Petit, Christophe |
| D'Andrea, Antonio | Pilarska, Magdalena |
| De Azevedo, Afonso Rangel Garcez | Pinto, Irvin |
| De Castro, Bruno Albuquerque | Piroddi, Luca |
| Di Mascio, Paola | Pollino, Maurizio |
| Di Mino, Gaetano | Pomoni, Maria |
| Díaz-Fuentes, Daniel | Prazuch, Janusz |
| Distefano, Natalia | Pyrzowski, Łukasz |
| Dizo, Jan | Qarmout, Mahmoud |
| Djordjevic, Boban | Rakoczy, Anna M. |
| Dostál, Ivo | Rasulo, Alessandro |
| Du, Jingtao | Ravindran, Gobinath |
| Dumitriu, Mădălina | Řehák, David |
| Dzięcioł, Justyna | Reuland, Yves |
| Elfass, Sherif A. | Riggio, Mariapaola |
| Elmouki, Ilias | Romana, Manuel G. |
| El-Zohairy, Ayman | Roy, Krishanu |
| Emery, John | Rudnicki, Marek |
| Esmaeilzadeh, Ehsan | Saavedra, Jorge |
| Estokova, Adriana | Safyari, Mahdieh |
| Fabbrocino, Giovanni | Sakthivel, Kogularasu |
| Fabris, Nicola | Salas Herranz, Jorge |
| Fancy, Saiada Fuadi | Saleh, Arash Emami |
| Farzampour, Alireza | Sallam, Hossam El-Din |
| Fedele, Rosario | Salman, Baris |
| Fenerci, Aksel | Sambito, Mariacrocetta |
| Ferretti, Elena | Santos, Caio |
| Figueiredo, Carlos | Sasahara, Fabio |
| Fiore, Pierfrancesco | Satyanaga, Alfrendo |
| Fiorentini, Nicholas | Sediek, Omar Ashraf |
| Forde, Michael C. | Seo, Eunil |
| Forgács, Tamás | Severino, Alessandro |
| Frade, Miguel | Shaaban, Khaled |
| Frideres, James | Shafigh, Payam |
| Funari, Marco Francesco | Shen, Jinlei |
| Futáš, Peter | Shettar, Manjunath |
| Galić, Mario | Sielicki, Piotr |
| Garrido, Laura | Singh, Mandeep |
| Ghosh, Aritra | Skar, Asmus |
| Ghosh, Ruchira | Song, Houbing |
| Giglio, Carlo | Song, Jinhui |
| Gkantou, Michaela | Sony, Sandeep |
| Grabiec, Anna M. | Sotiriadis, Dimitris |
| Grădinaru, Catalina Mihaela | Stanko, Davor |
| Grbić, Ratko | Statnik, Eugene |
| Gromysz, Krzysztof | Stepien, Anna |
| Guirao, Begoña | Stepinac, Mislav |
| Guler, Soner | Štraub, Daniel |
| Habibi Rad, Mahyar | Sun, Mucun |
| Hajializadeh, Donya | Sysyn, Mykola |
| Harirchian, Ehsan | Szydlowski, Cezary |
| Hashemi-Dezaki, Hamed | Tafidis, Pavlos |
| Hernández-Ávila, Juan | Tahmasebinia, Faham |
| Heuvenlink, Gerard | Tekle, Biruk Hailu |
| Hossain, Md Akhtar | Theodossiou, Nicolaos |
| Hu, Jie | Thives, Liseane Padilha |
| Hui, Li | Todino, Anna Paola |
| Iannuzzo, Antonino | Torres-Luque, Magda |
| Inoue, Masumi | Toska, Klajdi |
| Intini, Paolo | Tsavdaridis, Konstantinos |
| Jaczewski, Mariusz | Tsoulfas, Giannis |
| Jasinski, Radoslaw | Tubis, Agnieszka Anna |
| Jastrzębska, Małgorzata | Turner, Cameron |
| Javid, Muhammad Ashraf | Uday, Payuna |
| Jayasinghe, Amila | Ungurean, Ioan |
| Jendželovský, Norbert | Usman, Muhammad |
| Jorquera-Lucerga, Juan José | Uva, Giuseppina |
| Juhasz, Janos | Vannucchi de Camargo, Felipe |
| Jumadi, J. | Velamati, Ratna Kishore |
| Kadłubek, Marta | Verdeja González, Luis Felipe |
| Kampczyk, Arkadiusz | Verre, Salvatore |
| Kara De Maeijer, Patricia | Vidmar, Peter |
| Karabasevic, Darjan | Vizzari, Domenico |
| Karney, Bryan | Wang, Di |
| Kenyeres, Martin | Wang, Jiaqing |
| Keramatikerman, Mahdi | Wang, Junjie |
| Khalaj, Omid | Wang, Shun |
| Kim, Changmo | Wardeh, George |
| Kim, Jun Hee | Weber, Felix |
| Kim, Sihyun | Wołek, Marcin |
| Kinuthia, John | Won, Jeong-Hun |
| Kjems, Erik | Xenidis, Yiannis |
| Kluczynski, Janusz | Xu, Juncai |
| Kobtsev, Sergey | Yang, Mijia |
| Kola, Rashmi | Yang, Sungchul |
| Konior, Jaroslaw | Yeboah, David |
| Konstantinos, Katakalos | Yoon, Hyejin |
| Köpke, Corinna | Yousefi, Amir M. |
| Koren, Csaba | Zacchei, Enrico |
| Koren, David | Zeyad, Abdullah M. |
| Korytarova, Jana | Zhang, Ivan |
| Kot, Sebastian | Zima, Krzysztof |
| Kotter, Richard | Zucca, Marco |
| Koutsovitis, Petros |
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