AIM is the area of the London stock exchange that deals with startups http://www.londonstockexchange.com/companies-and-advisors/aim/aim/aim.htm
One of the seedcoin companies will be the first blockchain fintech company to IPO there. This should be in the news soon. The guy running SeedCoin is Eddy Travia who I've only heard good things about.
Seedcoin had a lot of regulatory hoops n stuff to get past in the beginning and were slow to get rolling, but they haven't been sitting around. They've got solid companies in their stable, got themselves away from the sketchy and not-entirely-trustworthy havelock, have issued all shares to shareholders privately and following all the correct legal procedures, now will trade offerings on an internationally recognized legit exchange. Everything looks good IMHO

I think they are rebranding themselves as Coincilium too. There will be press releases any day now.