compare it with 3000+ installations (only counting solutions that is,btw) on the PPT that is sticky again on this board
assume EUR 5,000 per installations (an average, some small clients, some large ones) and imho this is a low assumption. some clients are chains, airports etc that's EUR 15Million revenues for counting solutions (3,000 installations).
for year 2011: it was reported a few millions in sales by DIAAF after acquiring TandR