Ask HN: Need more ideas to attract investors to demo day (in Copenhagen)

I run Startupbootcamp in Copenhagen.  I've been squeezing our network and trawling the web but would appreciate more sources and ideas.

I've reached out to the main blogs but I'm not sure all angels read blogs (in Europe).  

I've also:

-downloaded the EBAN (European Business Angel Network) and (X)VCA (country X Venture Capital Association) member lists

-done keyword searches in LinkedIn

-tapped into our mentor and investor network for personal introductions

I am looking for more ideas to reach out to investors in Europe (and if anyone beyond Europe is interested in talking feel free to contact me, details in my profile).

Note that our event is open to non-investors as well, drop by if you're in the neighborhood.