PayPal is an online payment platform that lets individuals and businesses send, receive, and manage money digitally.

Visa operates a global electronic payments network that processes card-based transactions between banks, merchants, and consumers.

Mastercard operates a global electronic payments network that processes card-based transactions between banks, merchants, and consumers.

American Express is a global financial services company that issues charge and credit cards and provides related payment and travel services.

Stripe provides online payment processing infrastructure and related financial tooling that businesses use to accept and manage payments.

QuickBooks is accounting software developed by Intuit that small and medium-sized businesses use to manage invoicing, expenses, and bookkeeping.

DocuSign is a platform for electronically signing, sending, and managing legal and business documents.

Xero is cloud-based accounting software designed for small businesses to manage invoicing, payroll, and financial reporting.

Square provides point-of-sale hardware and software along with payment processing services for small and medium-sized businesses.

Wise is a financial technology company that provides international money transfer and multi-currency account services.