Deep-dive into business models of successful companies. Each case study analyzes the company using our 9-module Litmus validation framework.
Whether you are building a fintech startup, a SaaS product, an e-commerce marketplace, or a consumer app, understanding proven business models is the fastest way to validate your own idea. Our library covers revenue strategies, customer acquisition playbooks, competitive moats, and growth frameworks used by companies like Stripe, Razorpay, Zerodha, Shopify, Uber, and many more.
30+
Fintech Models
25+
SaaS & Dev Tools
20+
E-Commerce & Retail
90+
Startup Guides
Complete breakdown of how Chime disrupted traditional banking with no-fee accounts and early direct deposit, IPO'd on Nasdaq in 2025, and now earns $2.19B serving underbanked Americans.
Complete breakdown of how Coinbase became the most trusted crypto exchange in America, survived multiple crypto winters, and built a diversified business with $7.18B in 2025 revenue.
Complete breakdown of how Klarna pioneered Buy Now Pay Later, scaled to 118M consumers, survived a brutal valuation crash, used AI to slash costs, and IPO'd on the NYSE in 2025.
How David Vélez turned a no-fee purple credit card into a digital bank with 135M+ customers, $5B+ quarterly revenue, and a 29% ROE — serving people traditional Latin American banks ignored.
How PayPal pioneered digital payments, spun out of eBay, and now runs ~$1.8T in annual payment volume across 439M accounts — while fighting Apple Pay, Stripe and Cash App for relevance.
How Razorpay became India's largest online payment gateway, processing ~$210B annually for 12M+ businesses and growing FY25 revenue 65% to ₹3,783 Cr.
Complete breakdown of how Nikolay Storonsky built Revolut from a travel money app into a $75B super app with 68M+ customers, a UK banking licence, and $2.3B in annual profit.
How Robinhood killed trading commissions, survived the meme-stock crash, and grew into a profitable brokerage with $4.5B revenue, $1.9B net income, and 27.4M funded customers.
How Square (now Block) evolved from a $10 card reader into two linked networks — Square for sellers and Cash App for consumers — generating $10.4B of gross profit in 2025.
The ultimate breakdown of how Patrick and John Collison turned complex payment gateways into an elegant developer experience now processing $1.9 trillion a year.
Complete breakdown of how Wise (formerly TransferWise) disrupted international money transfers with transparent pricing, reached £1.36B in income, and now moves £145B+ across borders a year.
Complete breakdown of how Zerodha disrupted Indian stock trading with zero marketing, achieving 56% profit margins and becoming a $3B+ company with 7M+ active users.
Complete breakdown of how Adyen became the preferred payments platform for enterprises like Uber, Spotify, and McDonald's by building a single unified platform.
Complete breakdown of how Affirm differentiated from other BNPL players with transparent pricing, longer-term financing, and partnerships with Amazon and Shopify to serve 18M+ users.
Complete breakdown of how Checkout.com became Europe's most valuable fintech by focusing on enterprise payments with modern APIs and aggressive pricing.
Analysis of Groww's zero-commission model, focus on Gen Z investors, and evolution into a multi-asset platform overtaking Zerodha.
Complete breakdown of how Marqeta built the modern card issuing platform that processes $200B+ annually, powering cards for the biggest fintechs and gig economy companies.
How Monzo turned 'Hot Coral' cards into a profitable banking giant with £880M revenue, proving the neobank thesis.
How N26 retreated from global expansion to master the European 'Lifestyle Banking' market and achieve profitability.
Deep dive into Paytm's business model: its evolution from a mobile recharge app to India's leading merchant-payments super-app, the Soundbox subscription engine, the RBI Payments Bank shock, and its turn to PAT profitability in FY26.
Deep dive into PhonePe's business model: UPI leadership (~46% volume share), the Soundbox-versus-PhonePe merchant battle, diversification into lending and insurance, and the road to its mid-2026 IPO.
Complete breakdown of how Plaid became the essential infrastructure layer for fintech, connecting financial institutions to applications and enabling the modern fintech ecosystem.
Complete breakdown of how SoFi evolved from student loan refinancing to a comprehensive financial services platform with banking, investing, and lending serving 9M+ members.
Complete breakdown of how Upstart built an AI lending platform that approves more borrowers at lower rates, partnering with 100+ banks to originate $30B+ in loans.
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A business model case study is a detailed analysis of how a company creates, delivers, and captures value. Our case studies break down revenue streams, customer segments, cost structures, competitive advantages, and growth strategies using the Litmus 9-module validation framework.
By studying how successful companies built their business models, you can identify patterns, avoid common mistakes, and apply proven strategies to your own venture. Each case study includes actionable takeaways and a Litmus framework analysis score to help you benchmark your own startup.
The Litmus framework is a structured approach to startup validation covering 9 key modules: Customer Segment, Value Proposition, Marketing Channel, Engagement, Income Source, Asset Validation, Core Operations, Strategic Alliance, and Expense Validation. Each company is scored across all modules to reveal strengths and gaps.
Yes, all case studies and framework guides in our learning library are completely free to read. You can create a free Litmus account to access interactive tools, downloadable templates, and track your own startup validation progress.