See http://www.lse.co.uk/ShareChart.asp?chart=intraday&sharechart=SEPU&share=sepura . Sepura (my old Company) shares fell recently.
They make TETRA and DMR (terminals and base stations) and sell these all over the world. In troubled times people will always need secure communications. Maybe now is a good time to buy shares before go up again?
They have been in profit since they were first listed.