Grants or other financing tools
Starting a small business doesn't have to require a lot of money, but it will involve some initial investment as well as the ability to cover ongoing expenses before you are turning a profit. Put together a spreadsheet that estimates the one-time startup costs for your business (licenses and permits, equipment, legal fees, insurance, branding, market research, inventory, trademarking, grand opening events, property leases, etc.), as well as what you anticipate you will need to keep your business running for at least 12 months (rent, utilities, marketing and advertising, production, supplies, travel expenses, employee salaries, your own salary, etc.).
Those numbers combined is the initial investment you will need.
Now that you have a rough number in mind, there are a number of ways you can fund your small business, including: