Information about experts who conduct workshops in colleges

hey!!
i need information about the people or companies which conduct workshops and events in colleges.
Given below is the list of few events for which i need experts people who can conduct theoretical as well as practical sessions.
1) embedded systems.(for 2nd and 3rd year students)
2)Artificial intelligence and neural systems.
3)advanced communications.
4) robotics
5)digital signals and image processing

6)applications of nano technology in communication systems
please reply asap .
thnx

I heard hcl organise such events bt not sure whether they will cover above topics or not....

Not aware of any right ouf my mind. I'm quite sure that if you can promise crowds, there would be many local experts who'd be willing to conduct a workshop in your college.