Face the fact that if you have investment money you will eventually run out.
That being said, "credit" becomes your way out of the problem while you either get more revenues or more investment. Otherwise, you "will" be squeezed in your next round, if they even sniff that your runway might be short.
Take a large portion of your investment cash and use it to build credit. Sign up for a secured credit card at several major banks. Put as much as you can into each one. The more you deposit, the higher the credit available showing on your companies credit report.
Use these accounts and pay off the balance each month just like you were using debit cards. This is the fastest way to build some credit.
Once you have some credit, use it to do the same thing but this time, ask for "lines of credit" at each of those banks. Put up cash as collateral.
Lines of credit are the only type you can use to pay on credit cards with. Use your line of credit to pay down the balances on your secured cards. Then use your normal cash flow to pay down your lines of credit.
At this point, you can buy company cars in your company name.
Now you have credit cards, lines of credit and "major" purchase financed.
As long as you understand that "interest" is the cost of buying "credit scores" you will understand why it is your best investment.
When the time is right, cash these out and get your collateralized money back and convert the credit cards and lines of credit from "secured" to "unsecured."
Then you have both credit and cash. If you run out of cash, that credit may save your business!