Final answer:
Companies can bring external funding into their businesses through private investors, borrowing from banks or issuing bonds, and selling stock.
Step-by-step explanation:
Companies can bring external funding into their businesses in several ways. One option is to seek investment from private investors such as angel investors and venture capital firms. These investors provide financial capital in exchange for ownership or a share of the company's profits.
Another option is to borrow money from banks or issue bonds. This allows companies to raise funds by taking on debt and making regular interest payments.
Finally, companies can also raise money by selling stock. This involves issuing shares of ownership in the company to the public or institutional investors.