Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Technologies maintains its standards for the high quality of its published papers. Thanks to the cooperation of our reviewers, in 2020, the median time to first decision was 18 days and the median time to publication was 3.5 days. The editors would like to express their sincere gratitude to the following reviewers for their precious time and dedication, regardless of whether the papers were finally published:
| Abramović, Borna | Lebon, Frédéric |
| Ajienka, Nemitari | Lee, Gueesang |
| Alam, Tanweer | Lengvarský, Pavol |
| Alfaro-Pérez, Jorge | Li, Li |
| Amaxilatis, Dimitrios | Ling, Hao |
| Antoniac, Iulian | Linkov, Igor |
| Atri, Roozbeh | Liu, Guixiong |
| Ávalos, Juan Gerardo | Liu, Tzong-shi |
| Avery, James | Lo Sciuto, Grazia |
| Bagui, Sikha | López-Martínez, Alberto |
| Ballard, Zachary | Lorenzo, Jose M. |
| Bao, Shenxu | Lourentzou, Ismini |
| Barbi, Silvia | Machno, Magdalena |
| Berkowsky, Ronald | Mariotti, Gabriele Virzì |
| Bieber, Gerald | Martinez-Martin, Ester |
| Bilbao, Josu | Martinsen, Ørjan G. |
| Blatnický, Miroslav | Mastinu, Andrea |
| Bonfanti, Giovanna | Metcalfe, Benjamin |
| Brischetto, Salvatore | Meyer, Morgan |
| Brooke, Joanne | Mharouech, Emira |
| Burford, Dwight | Mocanu, Irina |
| Burzo, Mihai | Mohammadian, Hamid Doost |
| Bykov, Alexander | Mylon, Pete |
| Cai, Hongyi | Nadimpalli, Venkata Karthik |
| Cai, Jie | Naranjo-Zeledón, Luis |
| Campo, Eric | Nascimento, Daniel Chagas Do |
| Cantu, Jaime | Nasimuddin, N. |
| Cao, Yiping | Niemelä, Marketta |
| Caporusso, Nicholas | Nistazakis, Hector E |
| Capponi, Caterina | Nosrati, Mehdi |
| Casalino, Gabriella | Ntinas, Vasileios |
| Cecconet, Daniele | Nugroho, Ferry Anggoro Ardy |
| Chappidi, Chandrakanth | Orlik, Julia |
| Chee Kai, Chua | Ortín-Obón, Marta |
| Chehri, Abdellah | Ouahabi, Abdeldjalil |
| Chen, Hou-Guang | Padil, Vinod V. T. |
| Chen, Tsung-Lin | Parvez, Imtiaz |
| Chen, Yeou-Jiunn | Pasqualotto, Roberto |
| Chen, Zhongbing | Patil, Deepak |
| Chibowski, Emil | Patterson, Albert E. |
| Chiodo, Elio | Pavaloaia, Vasile Daniel |
| Choi, Kyusun | Perez, Santiago |
| Chuchu, Tinashe | Persaud, Arun |
| Clark, Daniel J. | Picó Vila, Rubén |
| Collins, Maurice | Picos, Rodrigo |
| Colombani, Jean | Pierroux, Palmyre |
| Constantinescu, Catalin-Daniel | Pinho, Pedro |
| Contreras-Reyes, Javier E. | Popescu, Nirvana |
| Corcoran, Peter | Pustan, Marius |
| D’ Acunto, Mario | Queiruga-Dios, Araceli |
| Da Silva, Francisco José Gomes | Qureshi, Amna |
| Dang, Vinh | Rafiq H Siddiqui, Mohammed |
| Davis, Robert | Rahman, Akhlaqur |
| De Brevern, Alexandre G. | Rainisio, Nicola |
| De La Cruz Sánchez, Ernesto | Ramirez-Reyes, Abdiel |
| De Lacalle, Luis N. López | Randazzo, Vincenzo |
| De Martino, Andrea | Rasche, Christoph |
| De Oliveira Barra, Guilherme Mariz | Reddy, S. Surender |
| Dell’Isola, Francesco | Rehman, Zeeshan Ur |
| Deng, Wu | Ribeiro, Thierry |
| Dhakal, Rajendra | Romero-Ania, Alberto |
| Ding, Yong | Rosenkranz, Andreas |
| Dogdu, Erdogan | Rostro-González, Horacio |
| Donnici, Giampiero | Ruiz Mezcua, Belén |
| Dowrick, Thomas | Ruysschaert, Jean Marie |
| Drlik, Martin | Rytlewski, Piotr |
| Du, Guanglong | Saiko, Guennadi |
| Duarte, Fábio | Salahdine, Fatima |
| Dudescu, Mircea Cristian | Salmi, Mika |
| Duffy, Vincent | Saracevic, Muzafer H. |
| Duran, Cristhian | Sebe, Francesc |
| Egea, Antonio | Seetharaman, Sankaranarayanan |
| Eremeyev, Victor | Serdean, Florina |
| Espinosa-Leal, Leonardo | Sevastopoulos, Christos |
| Everett, Richard | Sharker, Shazid Md. |
| Exler, Anja | Silvia, Lorenzo Freire |
| Fanizzi, Francesco Paolo | Sirtoli, Vinicius |
| Fattah, Kazi Parvez | Skordoulis, Michalis |
| Fernández, Francisco Brocal | Sontakke, Atul D. |
| Fernandez-Balbuena, Antonio Alvarez | Spreafico, Christian |
| Ferreira, Artur | Stojanovic, Goran |
| Fertsch, Marek | Stoyanov, Borislav |
| Fidan, Ismail | Strozzi, Antonio |
| Fisher, Daniel K. | Subasi, Abdulhamit |
| Flandre, Denis | Suh, Young Soo |
| Fosalau, Cristian | Sun, Ruopeng |
| Galkiewicz, Jaroslaw | Suntornnond, Ratima |
| Gao, Mingyuan | Surmeneva, Maria |
| Garcia, Jose Manuel Cano | Szajowski, Krzysztof |
| Goh, Guodong | Sziebig, Gabor |
| Goleva, Rossitza | Tamašauskaitė-Tamašiūnaitė, Loreta |
| Gómez-Soberón, Jose Manuel | Tammemae, Kalle |
| Gong, Haijun | Tarczewski, Tomasz |
| Gravalos, Ioannis | Theodoridis, George |
| Grillo, Giorgio | Thompson, Lara A. |
| Gürdür Broo, Didem | Tick, Andrea |
| Gutiérrez, Eduardo Quevedo | Tlelo-Cuautle, Esteban |
| Gutiérrez, Pedro Antonio | Tran, Bach |
| Haghi, Mostafa | Tsiakas, Konstantinos |
| Hatzopoulos, Alkiviadis | Turja, Tuuli |
| Hemanth, Jude | Tursi, Antonio |
| Hidalgo, Jose Manuel Soto | Uddin, Mohammad Salah |
| Hill, Chris | Ugbolue, Ukadike |
| Hong, Cheng-Yih | Valikhani, Alireza |
| Horng, Shi-Jinn | Vangorp, Peter |
| Hsi-Jen James, Yeh | Vasilescu, Mircea Dorin |
| Hu, Maocong | Vazquez-Araujo, Francisco |
| Hudec, Robert | Vergnano, Alberto |
| Huynh, Thanh-Canh | Viassone, Milena |
| Igual, Jorge | Wahid, Khan A. |
| Immich, Roger Kreutz | Wan, Shaohua |
| Irimiciuc, Stefan-Andrei | Wang, Chao |
| Ito, Tadashi | Wang, Chung-Jen |
| Ivan, Loredana | Wang, Jinghui |
| Izonin, Ivan | Wang, Lei |
| Jarfors, Anders | Wang, Tianhao |
| Jekova, Irena | Wang, Zhongyang |
| Jen, Yi-Jun | Weitschek, Emanuel |
| Jović, Danica | Weng, Yiwei |
| Kalomiros, John | Wiśniewski, Piotr |
| Kamal, Muhammad Shahzad | Wong, Eugene |
| Kamienski, Carlos Alberto | Wu, Pinghui |
| Karaseov, Platon | Yang, Shufan |
| Karg, Michael C. H. | Yen, Chen-wen |
| Karlos, Stamatis | Yiannopoulos, Kostas |
| Karoń, Grzegorz | Young, Timothy M. |
| Kertész, Gábor | Yuste Delgado, Antonio Jesús |
| Khomutov, M. G. | Zampogna, Alessandro |
| Kim, Han-Jung | Zanuttigh, Pietro |
| Kim, Sanghyun | Zhang, Haoran |
| Kim, Sangwon | Zhang, Jun |
| Kim, Youngmin | Zhang, Yu |
| Kottfer, Daniel | Zhang, Zhiguo |
| Kovalcikova, Alexandra | Zhou, Ran |
| Kovtunenko, Victor A. | Zhu, Yi |
| Kwan, Chiman | Zhu, Yong |
| Kyriakopoulos, Grigorios | Zidek, Jan |
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