A quarter-million dollars came from the head of Suffolk Construction, a Boston-based builder betting big on a New York City expansion.

Another $150,000 arrived from the chairman of Vornado Realty Trust, who is searching for a way to revive a stalled Midtown Manhattan redevelopment so important that he once called it his “promised land.”

DoorDash, the food delivery service lobbying City Hall on regulations that could disrupt its business model, chipped in a staggering $1 million.

The donations make up just a fraction of the checks from New York business leaders, billionaires and special interest groups pouring into a super PAC boosting Andrew M. Cuomo, the favorite in the Democratic primary for mayor on June 24.

With $10 million raised so far, the super PAC, Fix the City, is already the single largest outside spending force in New York City’s political history, surpassing a record set in 2021. It has spent multiples more on ads than any campaign in the race, blanketing New Yorkers’ screens in paeans to the former governor.

The next biggest candidate super PAC, set up to back Assemblyman Zohran Mamdani, a democratic socialist who is second in recent polls, has 1/50th of the funds.