Utengenezaji ni uundaji wa vitu kwa kutumia kazi ya binadamu, mashine, vifaa n.k. Unahesabika kama sekta ya pili ya uchumi. Inaweza kuitwa hivyo kazi ya fundi binafsi lakini hasa ile ya viwanda vikubwa vinavyotumia teknolojia ya kielektroni. Orodha hii ya Benki ya Dunia inahesabu utengenezaji kwa dolar za Marekani. Kenton, Will. Manufacturing (en). Manufacturing, value added (current US$) | Data (en-us). Kalpakjian, Serope (August 2005). Manufacturing, Engineering & Technology. Prentice Hall, 22–36, 951–88. ISBN 978-0-13-148965-3.  Wikamusi ya Kiswahili ina maelezo na tafsiri ya maana ya neno: utengenezaji Wikimedia Commons ina media kuhusu: Utengenezaji Wikiquote ina mkusanyiko wa dondoo kuhusu: Utengenezaji How Everyday Things Are Made: video presentations Grant Thornton IBR 2008 Manufacturing industry focus EEF, the manufacturers' organisation – industry group representing uk manufacturers Enabling the Digital Thread for Smart Manufacturing Evidences of Metal Manufacturing History Manufacturing Sector of the National Occupational Research Agenda, USA, 2018.