Nathan Blecharczyk, Brian Chesky and Joe Gebbia live in California, but they have a lot riding on the policies of the next mayor of New York.

The three men founded the popular apartment sharing website Airbnb, which is currently locked in a standoff with New York State regulators. So it is perhaps not surprising that in recent days each of the three gave the maximum possible donation to Bill de Blasio, the Democratic nominee for mayor, who, if he wins, could play a significant role in the negotiations.

With Mr. de Blasio leading his Republican rival, Joseph J. Lhota, by nearly 50 points, he has been raising money at a feverish pace: roughly $100,000 a day.

The list of donors that Mr. de Blasio’s campaign has disclosed in recent days has the usual mix of real estate developers, lawyers and bankers. But it also illustrates the growing clout of technology entrepreneurs and investors, as well as their dependence on policies in City Hall.