SEMAPHORE SYSTEMS LIMITED has been working since 6/11/1979. The current status of the business is Active SEMAPHORE SYSTEMS LIMITED located on UNIT 4 QUADRANT BUSINESS CENTRE, 135 SALUSBURY ROAD, LONDON, NW6 6RJComputer Consultant Grant Robert is known as a Director of the company. King Paul Stanley is known as a Secretary of the company. Computer Consultant King Paul Stanley is known as a Director of the company. "Information technology consultancy activities" is a known activity of the company.