I agree with spook and shazzybird. Speedyguy, you do seem to come across as being a little obsessed with this outcome.
Maybe, though with the best intentions things have not quite worked as these people have planned. Of course, they may have changed their minds or direction. Perhaps, they are just staying quiet until they have something positive to report for the time being. Hassling them or inviting others to do the same, is not going to change the outcome.
I feel sorry for anyone that says I will 'get back to you' in due course.