Iron Fish

Iron Fish

Decentralized platform for private crypto transactions

Overview

Iron Fish is a privacy-focused cryptocurrency platform that enables private and secure digital transactions. It leverages zk-SNARK technology to encrypt transactions and allow users to prove a transaction’s validity without revealing any details. The system operates on a decentralized global network of miners and nodes, avoiding central control and making it resistant to censorship. It supports multi-asset functionality, allowing bridge providers to transfer various crypto assets onto the Iron Fish network for private transfers, and earns revenue from transaction fees and potential partnerships with developers building on its encrypted network. Iron Fish’s goal is to provide a user-friendly, accessible, and privacy-first ecosystem for individuals, developers, and bridge providers to conduct confidential crypto transactions at a global scale.

About Iron Fish

Simplify's Rating
Why Iron Fish is rated
C
Rated C on Competitive Edge
Rated B on Growth Potential
Rated D+ on Differentiation

Industries

Fintech

Cybersecurity

Crypto & Web3

Financial Services

Company Size

1-10

Company Stage

Series A

Total Funding

$32.9M

Headquarters

San Francisco, California

Founded

2018

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Simplify's Take

What believers are saying

  • Coinbase acquired team, boosting zk-SNARK integration into Base L2.
  • Node app launched June 2023 simplifies full node operation one-click.
  • $32.9M funding from a16z and Sequoia fuels mainnet growth since 2023.

What critics are saying

  • Coinbase acquisition drains talent, halts Iron Fish development within 6 months.
  • FinCEN rules label Iron Fish mixer, ChainPort freezes bridges in 12 months.
  • Solana Firedancer upgrade captures bridges with 10x throughput in 6 months.

What makes Iron Fish unique

  • Iron Fish uses zk-SNARKs for private-by-default transactions on PoW Layer 1.
  • View keys enable selective transparency for compliance without backdoors.
  • Multi-asset support bridges any crypto privately across 20+ EVM chains.

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Funding

Total Funding

$32.9M

Above

Industry Average

Funded Over

2 Rounds

Notable Investors:
Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
Discord
$15M
Canva
$27.6M
Iron Fish
$30M
Kalshi

Benefits

Health benefits

Family leave

Equipment

Paid Time Off

Free Lunch

Company News

CRYPTOMERIA LABS PTE. LTD.
Mar 7th, 2025
Coinbase Acquires Iron Fish Team

Coinbase has acquired the Iron Fish team to enhance privacy on its Layer 2 network, Base. The Iron Fish blockchain and token will remain independent, managed by the Iron Fish Foundation. This acquisition aims to integrate privacy features into Base, benefiting developers and users by ensuring secure, private, and compliant on-chain applications. Coinbase emphasizes its commitment to privacy as a core component of its mission to advance the on-chain economy.

The Block
Mar 7th, 2025
Base acquires team at PoW blockchain Iron Fish to develop 'privacy-preserving primitives'

The acquisition is limited to the team, and Base is not acquiring the Iron Fish blockchain or its native token.

Web3 Blackhole
Jul 4th, 2023
PolyNetwork Exploit, CCTP Goes Live on Arbitrum, Introducing ZK Stack, and Other Highlights from Last Week in DeFi – Web3BlackHole

Privacy-focused chain Iron Fish also launched its Desktop Node app, making it easier for users to run an Iron Fish Node and perform private transactions.

GlobeNewswire
Jun 27th, 2023
The Privacy Layer For Web3, Iron Fish, Launches Node

SAN FRANCISCO, June 27, 2023 (GLOBE NEWSWIRE) -- Iron Fish , a fully private, proof-of-work (PoW) based layer 1 blockchain with built-in compliance features, today announced the launch of the novel Iron Fish node app. The node app was designed to be highly accessible and user-friendly, and it enables users to run a full node in just one click, making it easier than ever to manage digital assets and contribute to the growth and decentralization of the privacy-preserving Iron Fish network.With an emphasis on decentralization and accessibility, the Iron Fish team aims to offer privacy without compromise, even to those without any technical expertise.Through the new Iron Fish node application, users can:Launch a full node and sync with the Iron Fish networkView network data such as status and connected peersCustomize node settingsTake account of node resourcesCreate and delete accountsCheck token balancesSend and receive fundsMonitor transaction history and informationImport and export accountsMaintain an address book of contact addressesTo learn more about Iron Fish and start using the node app, visit https://ironfish.network/use/node-appFounded by Elena Nadolinski, Iron Fish has been in development since 2019, and leverages zero-knowledge proofs (zk-SNARKs) and the highest standards for encryption to serve as the native privacy layer for Web3. To date, the project has received $32.9M in VC funding from industry heavyweights including Andreessen Horowitz (a16z), Electric Capital, and Sequoia Capital. Iron Fish launched on Mainnet on April 20, 2023, following several successful testnet phases, which concluded with more than 60,000 full nodes running on the network.ABOUT THE IRON FISH FOUNDATIONThe Iron Fish Foundation is an organization supporting the growth of the Iron Fish network, a proof-of-work (PoW) based layer 1 blockchain network, intended to serve as a fully-compliant privacy layer for digital assets and Web3. Using zero-knowledge proofs (zk-SNARKS) and robust encryption standards, Iron Fish enables users to transact in a fully private way, without compromising on accessibility. Learn more about Iron Fish, the digital cash that embodies using privacy for good, at https://ironfish.network .MEDIA CONTACTDavid Goosenberg; [email protected]

TechCrunch
Dec 15th, 2022
Aztec Network Takes On Encrypted Blockchains With $100M Round Led By A16Z

Aztec Network, a privacy layer for web3, has raised $100 million in a Series B round led by Andreessen Horowitz (a16z), the startup’s co-founders Zac Williamson and Joe Andrews exclusively told TechCrunch.“At a high level, Aztec is an encrypted version of Ethereum,” Andrews said. “Normally on Ethereum everything is public, but we are making it encrypted. That journey has taken us many years to play out.”Aztec Network launched Aztec Connect, an ecosystem that integrates with Ethereum DeFi protocols like Aave, Lido and Element Finance, in July 2021. In the future, it will integrate with Compound, and five other DeFi protocols, according to its website.Encrypted blockchains provide transparency for the protocol but privacy for the users, so people aren’t required to show their identities when transacting, Williamson said.“The world isn’t nice to live in without encryption,” Andrews said. “Go through your day and think about how many things you wouldn’t want people to see. Not all of it is bad; it’s just your daily life

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