Good find- 2.85% is great for a business savings account.

All that is to say: businesses shouldn't treat all their cash the same way, especially when they have significant runway. The exact breakdown depends on the business, but typically you can think of it as three different buckets:

1) You have short-term cash, which you need immediately. This is where you'd use a checking account. This pays very close to 0% but you have immediate access. Most businesses might keep a few weeks' cash here.

2) You have short-term reserves, which is what you'd use in the next couple of months. This is where most companies might use a savings account (or even put it in a money market fund), where you know you can get the cash into your checking account in ~1 day. This pays between 2.5% and up to maybe 3.75%. Each business will structure their cash differently, and some might not even bother having this bucket.

3) Long term reserves, which you won't touch for months. This is where companies try to optimize yield, and where Palus is valuable. Even here, your money is safe, and in Palus's case can usually be in your checking account within a couple of days, but getting extra yield on long-term reserves can be super valuable.