Hasmonean High Schools’ supporters raised more £1.6 million in 36 hours – over £400,000 than the appeal target.
Around 4,100 people contributed to the “Preserve What’s Precious” campaign over Sunday and Monday, with a group of donors matching money raised by 273 teams of fundraisers.
The boys and girls schools, which need annually to raise £5 million of their £11 million budget from donatons and parental contributions, ran the campaign to help cover a shortfall caused by the coronavirus.
Parents had been warned that the institutions could be "lost" without an injection of funds.