Slash - A "productivity machine" that forces you to do tasks 1-by-1

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

Soldo - The company card that does expensing for you

PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller

Payhawk - We combine company cards, reimbursable expenses, and accounts payable into a single product to help businesses throughout Europe, the US, and the UK save time, control spend, and stay agile.

Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.