Many startup business accounts offer a better APY than treasury yields on idle...

https://oscar-wiki.win/index.php/Bluevine_vs_Mercury_for_a_Simple_High-Yield_Business_Account:_A_Practical_Comparison

Many startup business accounts offer a better APY than treasury yields on idle cash, helping your funds work harder without extra risk. But keep the $250,000 FDIC limit in mind to protect your money