Sweden -- with a population of 10.2 million people – now has almost 1,000 listed companies, according to data compiled by Bloomberg. The head of BNP Paribas SA’s Nordic business said in May he was adding staff in the region, while JPMorgan Chase & Co moved its Nordic investment banking team to Stockholm from London. Still, like many smaller markets, Sweden has seen some of its most promising startups look abroad. Music streaming company Spotify Technology SA and oat-milk maker Oatly AB both listed in the United States in recent years. Since then, the large-stock OMX Stockholm 30 Index has surged by 25% and a broader market gauge is up by 28%.