A blockchain analytics platform that labels hundreds of millions of wallets - turning the raw transparency of public blockchains into something an investor can actually read, and now act on.
Making public blockchains legible
Every transaction on a public blockchain is visible to anyone. The catch is that it is visible the way a phone book is legible in a language you cannot read - millions of anonymous addresses moving value with no context. Nansen's core idea is disarmingly simple: attach labels to those addresses. When a wallet stops being 0x3f...a91 and becomes "a known exchange," "an early DeFi fund," or "a consistently profitable trader," the ledger turns into a story.
Founded in 2019, Nansen enriches on-chain data with more than 500 million labeled addresses across 25-plus chains. That labeling engine - a mix of algorithms, machine learning, and human research - is the product's spine. On top of it sit dashboards that let users track "smart money," monitor token flows, watch trending contracts, and receive real-time alerts when something meaningful happens on-chain.
Nansen puts an entire research team in your pocket, accessible anywhere, 24/7.
— Nansen, on its AI productThe customers
Nansen serves a spectrum of onchain participants: individual traders and investors, crypto funds and portfolio managers, researchers and analysts, and institutions that need a reliable read on market activity. Around its 2021 Series A, the company said its user base grew more than 400% in six months.
The problems it solves
From dashboards to an agent that trades
Dashboards tracking the on-chain activity of top-performing and institutional wallets.
500M+ labeled addresses plus deep wallet-level profiling for research at scale.
Comprehensive token analytics - holders, flows, and performance in a single view.
Real-time notifications for critical events and detection of trending contracts.
Conversational onchain research paired with in-app trade execution on Solana and Base.
Developer API and Model Context Protocol access to Nansen's enriched data.
Most tools show you what happened on-chain. Nansen tries to show you who did it. The moat isn't a flashy feature - it's the unglamorous, relentless work of labeling millions of wallets, work that is hard to replicate and compounds over time. More recently, Nansen collapsed the gap between insight and action: users can research and then execute a trade without leaving the app.
Nansen competes in a crowded on-chain data field alongside Chainalysis, Glassnode, Dune Analytics, Messari, and Arkham. Its positioning is narrower and sharper than a catch-all data warehouse: answer one question - where is the smart money going - better than anyone, then extend that intelligence into execution.
Funding raised (USD, cumulative signal)
How it makes money
Nansen runs on tiered SaaS subscriptions for retail traders, professional investors, and institutions. That base is now layered with usage-based trading fees - around 0.25% - from its in-app onchain execution, plus enterprise and API data access and an NSN token staking program. The strategic shift is notable: from analytics-only tooling toward what the company calls agentic trading.
Third-party estimates put annual revenue near $3.2M, though the company has not published official figures.
Funding history
| Round | Amount | Date | Lead |
|---|---|---|---|
| Seed | $1.2M | Oct 2020 | Mechanism Capital |
| Series A | $12M | Jun 2021 | a16z |
| Series B | $75M | Dec 2021 | Accel |
Investors incl. GIC · Tiger Global · SCB 10X · Coinbase Ventures · QCP Capital
Alex Svanevik, Evgeny Medvedev, and Lars Bakke Krogvig set out to make on-chain data usable.
Raises $1.2M and builds its signature engine for labeling Ethereum wallet addresses.
Andreessen Horowitz leads a $12M round as the user base grows over 400%.
Accel leads a $75M round with GIC, a16z, and Tiger Global to fund multichain expansion.
Ships an agentic onchain app with a conversational trading chatbot on mobile.
Brings conversational research and in-app trading to web across Solana and Base.
The future of investing is agentic and autonomous.
— Alex Svanevik, Co-founder & CEONamed after Fridtjof Nansen, the Norwegian polar explorer and scientist - fitting for a firm charting unmapped on-chain territory.
CEO Alex Svanevik has Norwegian ties, and the company's Facebook presence traces back to "Nansen Stockholm."
The edge isn't fancy AI - it's the relentless, unglamorous work of labeling millions of anonymous wallets.
Official channels, media & demos