Genedrive PLC (LON:GDR) said chief operating officer Allan Brown is to leave the company.
Brown will step down after 31 January 2018 to ensure a smooth handover, the company said.
"Allan joined the company in 2014 and has played a key role in the development of the genedrive instrument and tests," said non-executive chairman, Ian Gilham.
"On behalf of the board I'd like to thank Allan for his contributions and wish him the very best in his future plans."
The announcement comes a month after the company’s full year results, which revealed a 13.7% rise in turnover thanks to a rise in development income and improved services income.