Hello!

I own a small business that spends about 1M or so per year on a credit card. I've been using a United Club Visa, and have no complaints. However, I get the feeling that I'm missing out on a better opportunity. I don't really mind the fee on this card, as the 1.5miles/$ is great, as well as being able to write off my united club membership. Almost none of my vendors accept AMEX, so that is unfortunately not an option at this time. I typically only fly United, as it is by far the most convenient option for where I live and where I usually travel. Any advice on other cards to explore is much appreciated. Looking forward to your suggestions. Thanks in advance!