Coinbase

OpenSea

Coinbase

Coinbase makes money from transaction fees. Every time someone buys or sells crypto on the platform, Coinbase takes a cut — typically around 1.5% for regular users, lower for high-volume traders on Coinbase Pro.

For a company that processes billions in daily volume, that adds up fast. In the 2021 bull run, Coinbase generated $7.8 billion in revenue.

Beyond trading fees, Coinbase earns revenue from staking (users earn yield on their crypto, Coinbase takes a commission), USDC interest (Coinbase co-created the USDC stablecoin with Circle and earns interest on the reserves), custodial services for institutions, and its cloud platform for developers building on-chain apps.

OpenSea

Marketplace — OpenSea takes a 2.5% fee on every NFT sale conducted on its platform. Sellers list NFTs for free; the fee is deducted from the sale price at transaction completion.

At peak volume ($5B/month in January 2022), that 2.5% generated roughly $125 million in monthly revenue. Revenue is almost entirely tied to trading volume, which makes the business model extremely cyclical.

The platform supports NFTs on Ethereum, Polygon, Solana, and other blockchains. OpenSea also earns from optional premium features and creator tools.

The cost structure is relatively lean — blockchain transactions are processed on-chain, so OpenSea doesn't need massive infrastructure for order matching.

Coinbase

Brian Armstrong was working as a software engineer at Airbnb in 2010 when he read Satoshi Nakamoto's Bitcoin white paper. He became obsessed.

At the time, buying Bitcoin meant navigating sketchy exchanges, wiring money to anonymous accounts, and hoping your coins didn't get stolen. Armstrong thought: this is never going mainstream unless someone makes it dead simple.

In 2012, Armstrong got into Y Combinator and co-founded Coinbase with Fred Ehrsam, a former Goldman Sachs trader. Their pitch was straightforward — be the easiest, safest, most regulated way to buy and sell Bitcoin.

While other crypto exchanges were operating in legal gray areas, Coinbase went out of its way to get money transmitter licenses in every US state. It was slow and expensive, but it meant Coinbase was the one exchange your bank wouldn't block.

The first version was bare-bones. You linked your bank account, bought Bitcoin, and Coinbase held it for you.

That custody model — Coinbase holding your crypto — was controversial with crypto purists who preached "not your keys, not your coins." But for normal people who didn't want to manage private keys, it was exactly what they needed.

OpenSea

Devin Finzer and Alex Atallah were both software engineers who had been tinkering with Ethereum projects when they noticed CryptoKitties — a game where people bought and sold digital cats as NFTs — going viral in late 2017. They realized there was no general marketplace for NFTs.

If you wanted to buy an NFT, you had to find the creator directly or use a project-specific interface. Finzer and Atallah launched OpenSea in December 2017 as a catch-all marketplace where any NFT could be listed and traded.

For three years, almost nobody cared. NFT trading volume was negligible and OpenSea survived on minimal revenue.

Then 2021 happened. Beeple sold an NFT for $69 million at Christie's.

Celebrity profile picture projects like Bored Ape Yacht Club exploded. Monthly NFT trading volume went from under $100 million to over $5 billion.

OpenSea, as the default marketplace, captured the vast majority of that volume.

Coinbase

Coinbase grew with the Bitcoin price cycle. Every bull run brought a wave of new users who heard about crypto from the news or their friends and Googled "how to buy Bitcoin." Coinbase was almost always the first result.

The company spent heavily on brand advertising including a legendary Super Bowl ad in 2022 that was just a bouncing QR code — it crashed the app from the traffic surge.

The regulatory strategy was the long game. While Binance and FTX grew faster by ignoring regulations, Coinbase spent years and millions getting licensed.

When the regulatory crackdown came, Coinbase was the last exchange standing. Being "the regulated one" went from a competitive disadvantage to the only thing that mattered.

The direct listing in April 2021 was a landmark moment. Coinbase went public via direct listing at a $85 billion valuation — the largest direct listing in history at the time.

It legitimized crypto as an asset class in a way that no Bitcoin price chart ever could.

OpenSea

First-mover advantage — OpenSea was the default marketplace by the time NFTs exploded, giving it network effects that were nearly impossible to overcome. Multi-chain expansion from Ethereum-only to Polygon, Solana, Klaytn, and others to capture trading wherever it happens.

Acquisition of Gem (NFT aggregator) to lock in power traders. Creator tools making it easy to launch NFT collections without technical skills, which brought supply to the platform.

Brand recognition — "OpenSea" became synonymous with NFT trading the way "eBay" once meant online auctions. Fundraising at massive valuations ($13.3B Series C) provided capital to invest in product during the downturn.

Coinbase

The crypto winter of 2022 nearly broke the company. After the collapse of FTX, Luna, and Three Arrows Capital, crypto trading volume fell off a cliff.

Coinbase's revenue dropped from $7.8 billion in 2021 to $3.1 billion in 2022. The stock went from $342 to $35 — an 90% decline.

Armstrong laid off 18% of the company in June 2022 and another 20% in January 2023.

The SEC lawsuit was existential. In June 2023, the SEC sued Coinbase alleging that it operated as an unregistered securities exchange.

The lawsuit claimed that at least 13 crypto assets traded on Coinbase were securities. If the SEC won, it could have fundamentally broken Coinbase's business model.

The case was eventually settled in 2025 with Coinbase paying a $50 million fine but crucially not admitting that any tokens were securities.

Revenue concentration is a structural risk. Coinbase's revenue swings wildly with crypto prices and trading volume.

In bull markets, the company prints money. In bear markets, revenue evaporates.

This makes it nearly impossible to plan long-term or maintain consistent growth — Wall Street hates unpredictability.

OpenSea

The NFT market collapsed. Monthly trading volume fell from $5 billion in January 2022 to under $50 million by mid-2023 — a 99%+ decline.

The $13.3 billion valuation from January 2022 looks almost comically inflated in hindsight. Competition from Blur (which launched a token and offered zero fees) stole significant market share among active traders.

Regulatory uncertainty — the SEC has signaled that some NFTs may be securities, which could fundamentally reshape the market. The broader crypto winter depressed activity across the entire ecosystem.

Internal challenges included an insider trading scandal involving a former employee who front-ran NFT listings. And the existential question: were NFTs a genuine new asset class or a speculative bubble?

OpenSea's future depends entirely on the answer.

Coinbase

Coinbase is the consumer trading platform — buy, sell, and hold 250+ cryptocurrencies. Coinbase Advanced Trade (formerly Coinbase Pro) is the lower-fee, more sophisticated trading interface.

Coinbase Wallet is a self-custody wallet where users control their own keys. Coinbase Prime is the institutional platform for hedge funds, family offices, and corporations.

Base is Coinbase's own Layer 2 blockchain built on Ethereum, designed for cheap, fast transactions. USDC is the stablecoin Coinbase co-created with Circle — pegged 1:1 to the US dollar with over $30 billion in circulation.

Coinbase Commerce lets businesses accept crypto payments.

OpenSea

NFT marketplace — browse, buy, sell, and auction NFTs across categories including art, collectibles, gaming items, music, domain names, and virtual real estate. Collection pages for NFT projects showing floor prices, volume, and holder statistics.

OpenSea Pro (formerly Gem) — an aggregator for power traders that pulls listings from multiple NFT marketplaces. Creator tools for minting and launching NFT collections without writing smart contract code.

Analytics dashboards showing collection rankings, trending projects, and trading patterns. Wallet integration supporting MetaMask, Coinbase Wallet, and other popular crypto wallets.

Coinbase

Y Combinator, Andreessen Horowitz, Union Square Ventures, Tiger Global, Ribbit Capital, IVP

OpenSea

Investors include Andreessen Horowitz (a16z), Paradigm, Coatue Management, and Tiger Global. Series C in January 2022 valued OpenSea at $13.3 billion — one of the highest valuations in crypto startup history.