I see your rainbow logo. I don’t see it on my site or any of the other AMEX sites I go to. I believe you, but I can’t find it for myself.
If you use American Express LGBT as search terms in whatever search engine you prefer... you will get a huge number of links back including stuff on the American Express home page. It will include this little beauty of a pdf which starts off...
“American Express has long been committed to lesbian, gay, bisexual and transgender (LGBT) causes. We were one of the first Fortune 500 companies to extend benefits and enact tax equalization to all employees with same-sex partners*. As a result of this dedication, we have scored 100% on the Human Rights Campaign’s (HRC) Corporate Equality Index since 2004.”