If you need bridge financing or think that your company is undervalued at last proposed investment round, there are two very flexible solutions apart from more classical financing instruments. Venture debt and revenue based-financing have been increasing popularity amongst many companies, including SaaS. These types of financing are similar to standard debt and loans but do not require a large collateral, however, they are usually supported by equity warrants. So if you do not want to dilute at early rounds of financing, and you have steady positive cash flow, it is worth considering Alternative financing.