Over the past 20 years he has worked in Australia, Cambodia, Canada, China, France, Japan, Norway, Saudi Arabia, Scotland, Thailand and Vietnam. He has led two major international development (ODA) projects from 2002 to 2015 in Vietnam and Cambodia. He has also worked closely with several major international aquaculture feed companies throughout Australia, Asia and Europe. He was an editor for the journal Aquaculture Nutrition from 2008-2016. He was also a board director for the Asia-Pacific chapter of the World Aquaculture Society from 2013 - 2016. Additionally he is presently Chair of the Scientific Committee of the International Society for Fish Nutrition and Feeding (ISFNF), and was Chair of the Organising Committee for the 2014 ISFNF Conference held in Australia. As the scientist that led the development and commercialisation of the microbial bioactive ingredient Novacq™ at CSIRO he and his team were awarded that organisations’ prestigious Impact from Science Medal. In recognition of his contributions to the Australian prawn and barramundi farming sectors Professor Glencross was awarded the Industry Research and Innovation Award in 2012.