Estonia has ~15000 people working in the tech sector. There are 1500 tech/IT companies, 26 of them above 100 employees. IT/Tech is ~5.8% of GDP (2010).

Here is one Estonian Startups list: http://hub.garage48.org/estonian-startups - all in all, there are 100+ active startups in Estonia, which I would say for a country of 1 million people is quite a startup culture. Estonia now has I believe 7 or 8 European startup accelerator Seedcamp winners, trailing only UK, Seedcamp's home country.