Alstom acquires Balfour Beatty’s stake in SSL JV May 28, 2015 | Europe News France-based Alstom has acquired UK-based Balfour Beatty Plc’s 50-per-cent stake in the joint venture (JV) Signalling Solutions Limited (SSL) giving sole ownership to the former. SSL was formed ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password