1720 is remembered in European history as the year of folly, when the financial markets ballooned and then collapsed in the capitals of England and France. The financial crisis was of great import to the subsequent history of both countries: England emerged from the crisis on the way to becoming an international financial powerhouse, whereas France failed to modernize its financial infrastructure, which collapsed during the French Revolution. Much less is known, however, outside the Netherlands about the third economy involved in the Bubble, namely, the proto-capitalist economy of the Dutch Republic. This chapter makes the case that the Dutch financial economy, which in 1720 was more advanced than that of its neighbours, bore the brunt of the crisis much better than they. The Bubble in the Dutch Republic channelled some of the country’s previously underused capital reserves back into the economy and allowed for the rise of a number of municipal Bubble companies, chiefly devoted to shipping and insurance. Several of these survived the Bubble and developed into bona fide businesses with surprising longevity. The foremost example of this is the Rotterdam insurance company which lasted until the twenty-first century and continues to exist as a philanthropic foundation.