Adyen vs Checkout.com

Adyen was founded in 2006 by a tight-knit team of Dutch fintech veterans who had previously built Bibit and sold it to Royal Bank of Scotland. Operating quietly out of an Amsterdam office, co-founders Pieter van der Does and Arnout Schuijff chose the name "Adyen," which translates to "Start Over" in Surinamese. They realized the global payments infrastructure was a broken mess of legacy corporate code, with merchant transactions routed through dozens of regional brokers, banks, and clearing houses. They spent years writing a single, unified global codebase from scratch to bypass the entire legacy banking network.

Adyen sent a shockwave through the global financial sector in January 2018 by pulling off an incredible corporate coup against PayPal. eBay publicly announced that after 15 years of treating PayPal as its exclusive payment processing partner, it was dropping the company to sign a long-term strategic agreement with Adyen. Adyen won the historic contract because its unified software allowed international buyers to pay using hyper-local regional methods without leaving the store page, shifting billions of dollars in transaction volume away from Silicon Valley.

Unlike its primary competitor Stripe, which grew rapidly by targeting millions of tiny venture-backed startups, Adyen focused exclusively on enterprise whales. The company built a high-volume, low-margin transaction engine engineered specifically for multi-national giants like Netflix, Uber, Spotify, and McDonald's. By maintaining a tiny sales team and avoiding expensive marketing campaigns, Adyen achieved an astonishing level of operational efficiency, frequently reporting EBITDA margins above 50% that traditional payment processing companies considered completely impossible.

In August 2023, Adyen suffered the worst single-day financial disaster in its corporate history, with its stock price crashing 39% in a few hours and erasing $20 billion in value. The company's semi-annual earnings report revealed a sudden slowdown in North American revenue growth as digital price wars escalated. US tech clients began shifting lower-tier volumes to cheaper commodity processors, exposing the deep vulnerability of Adyen's absolute reliance on a small handful of massive digital enterprise accounts.

By mid-2026, Adyen successfully recovered from its valuation crisis by executing a massive expansion into physical point-of-sale infrastructure for global luxury retail groups like LVMH. The firm's unified platform processed a staggering €1.2 trillion in annualized volume, cementing its position as the primary back-end payment standard for the global enterprise tier. Operating with zero long-term debt and maintaining a highly conservative cash position, Adyen grew its net revenues past €2.1 billion while keeping its engineering operations centralized in Amsterdam.

Checkout.com was founded by Guillaume Pousaz, a Swiss economics dropout who abruptly packed his bags and moved to California to surf after failing his university exams. He eventually drifted into the payments industry, relocating to Mauritius to build an early processing gateway before officially incorporating Checkout.com in London in 2012. Pousaz made a radical corporate decision: he refused all external venture capital funding for the first seven years of the company's lifecycle, bootstrapping operations entirely on organic transaction revenues and flying completely under the radar of Silicon Valley.

After remaining completely profitable in total obscurity, Checkout.com stunned the European tech ecosystem in May 2019 by closing a massive $230 million Series A investment round. Led by Insight Partners and DST Global, it represented the largest ever debut Series A funding round for a European fintech startup. The capital injection revealed that Pousaz had quietly built a cross-border payments powerhouse, processing billions of dollars for giant digital merchants like Shein, Grab, and Deliveroo by integrating payment processing, gateway, and fraud screening into a single API.

During the peak of the pandemic digital asset craze, Checkout.com grew exponentially by positioning its software infrastructure as the dominant payment gateway for the cryptocurrency industry. The firm signed up massive crypto platforms, including Binance, Coinbase, and Crypto.com, processing tens of billions of dollars in high-margin credit card transactions from retail consumers buying digital tokens. This highly specialized processing volume propelled Checkout.com's transaction metrics to historic highs, making it the primary financial bridge between fiat currency and the crypto world.

In January 2022, Checkout.com raised a massive $1 billion Series D round, pushing its private market valuation to an astronomical $40 billion and making Guillaume Pousaz the wealthiest self-made billionaire in Europe on paper. However, the victory was short-lived as the tech market turned hostile months later. As interest rates spiked and crypto volumes imploded, Checkout.com was hit by a wave of corporate markdowns, forcing management to internally slash its own valuation by over 70% down to $11 billion to match public market comps.

By mid-2026, Checkout.com successfully completed a grueling corporate pivot away from high-risk cryptocurrency processing to focus entirely on institutional B2B enterprise marketplaces across the Middle East and Europe. Under Guillaume Pousaz's continued leadership, the company expanded its high-margin automated identity verification and fraud prevention software suites. With annualized processing volumes stabilizing past $250 billion, the private firm remained highly profitable, generating over $1.1 billion in net operational revenue while avoiding the public market listing route.