Brex
Mercury
Ramp
Wise
PENTA
Stripe Corporate Card
Emburse Cards
Routespring
cointop
Aurox
Moneda CLI
Crypto Hub
Cryptotab
Crypto Tracker
Superorder
Cryptoradar
cointopcointop might be a bit more popular than Brex. We know about 1 link to it since March 2021 and only 1 link to Brex. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Nerdwallet has a pretty good comparison chart for secured business credit cards. You'll find many of them with cash back rewards, but I haven't seen any with flight rewards though. You can also build business credit with regular credit-that-works-like-debit cards from Brex, Dappr, and several others. Source: about 1 year ago
I don't own any cryptocurrencies but I find it fun to observe. Try using Cointop, it's a command-line tool that works really well. Source: about 3 years ago
Mercury - Mercury is banking* for startups
Aurox - Designed to help traders make successful trades
Ramp - Grow more. Waste less. Enterprise corporate cards built from the ground up to save your company money: issue unlimited cards and eliminate overspend with our advanced savings reports and 1.5% cash back on everything.
Moneda CLI - Command line to track cryptocurrency prices
Wise - Currency exchange Banks and other providers could charge you up to 5% in hidden costs when sending ...
Crypto Hub - View charts and summarize your crypto trading, in one page