To "raise money" means to get money from investors or donors. Investors are people who lend you money to get a piece of your business, so that they can earn more money later. Donors are people who give their money for a charity, a school, etc.

You can use the phrase "raise money":

We're raising money for cancer research.

Or you can state the amount of money:

We're hoping to raise $100,000 for cancer research.