This part scares me off “ 7 years I realised that it’s not scalable “ .
I can see many service companies that scaled well like sourcebits in mobile and www.hugeinc.com in digital. Just 2 examples there are many others in advertising as well.
Since I am in a similar industry I would like to know, what made you think its not scalable ?
PLING looks very promising by the way. All the best !!