

(Alliance News) - The following is a round-up of updates by London-listed companies, issued on Tuesday and not separately reported by Alliance News:


(Alliance News) - The following stocks are the leading risers and fallers on AIM on Tuesday.


Spectra Systems Corp - Rhode Island, US-based company developing systems to protect against fraudulent transactions - Wins a five-year contract renewa...


(Sharecast News) - Banknote authentication specialist Spectra System has again been selected to provide lottery gaming software to "a major western st...



