PayPal

PayPal is one of the world's most widely recognized online payment systems, processing over $1.5 trillion in total payment volume annually. It serves 435 million active accounts in 200+ markets. PayPal offers personal payments (Venmo), checkout buttons, invoicing, subscriptions, and a business account for merchants. Public on NASDAQ (PYPL).

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FreshBooks FreshBooks is an award-winning cloud accounting and invoicing software designed for freelancers, self-employed professionals, and small business owners. It offers time tracking, expense management, project management, double-entry accounting, and client portal. FreshBooks serves over 30 million users in 160 countries. Razorpay Razorpay is India's leading full-stack financial solutions company for businesses, offering payment gateway, payment links, subscriptions, invoicing, payroll (RazorpayX), and banking services. It processes payments from 100+ payment modes including cards, UPI, net banking, and wallets. Valued at $7.5 billion, Razorpay powers over 8 million businesses in India. Stripe Stripe is the world's leading payment infrastructure platform, processing hundreds of billions of dollars per year for millions of businesses in 195+ countries. It offers payment APIs, subscriptions (Stripe Billing), invoicing, fraud prevention (Radar), payouts, and financial services. Valued at $65 billion, Stripe powers Shopify, Amazon, Google, and millions of startups.