The Discover it Business card earns 1.5% cash back everywhere and your cash back is doubled after your first year.
For example, if you earned $500 in cash back, Discover will double it and give you $1,000 in total.

Discover it Business Card Information
Application Link: Discover it Business.
Current Sign Up Bonus: Double your cash back earned the first year plus 0% APR on purchases for the first 12 months.
Annual Fee: No Annual Fee.
Earning Rewards the First Year: 3% cash back everywhere (1.5% cash back is doubled at the end of the first year).
Earning Rewards after the First Year: 1.5% cash back everywhere.
Discover it Business Card Benefits
Up to 50 Free Business Cards– You can add up to 50 free business cards to your account, which also earn rewards for every dollar spent.
No Foreign Transaction Fees– You can use your Discover card anywhere in the world without having to pay foreign transaction fees, which are typically 3%.