Japan has a fairly sizeable 130m population. They used to have the world's most advanced tech industry in the 80s/part of the 90s.
Also do not discount Canada. At almost 40m people (comparable to say, Spain), access to US+Mexico market via NAFTA and a historically strong tech sector (Ati, Blackberry etc) you'd expect them to be very strong. However, despite these strengths, today Canada's tech sector pretty much devolved to a nearby location for US companies to temporarily relocate employees that had H1B issues. Canadian-origin tech companies are now basically gone from the big leagues.
Also do not discount Canada. At almost 40m people (comparable to say, Spain), access to US+Mexico market via NAFTA and a historically strong tech sector (Ati, Blackberry etc) you'd expect them to be very strong. However, despite these strengths, today Canada's tech sector pretty much devolved to a nearby location for US companies to temporarily relocate employees that had H1B issues. Canadian-origin tech companies are now basically gone from the big leagues.