The security partner trusted by
the world's leading financial institutions and blockchain protocols

When institutions and protocols need to protect billions in assets, they choose OpenZeppelin. We set the standards the industry is built on.

Trusted by

Setting the industry standards since 2015

From the earliest days of smart contracts, we created OpenZeppelin Contracts, the open-source smart contract library that became the industry standard. Today, trillions of dollars in total value have been transferred through OpenZeppelin Contracts, with hundreds of billions in total value locked in smart contracts importing OpenZeppelin features.

Total value transferred
via OpenZeppelin Contracts

Explore Stats ->

$30,160,337,760,351T

Explore Stats ->

The protocols securing billions build with OpenZeppelin

From top DeFi protocols like Aave, Lido, Uniswap, EigenLayer, Maple, and Pendle to major stablecoins and tokenized funds—the industry's most critical infrastructure is built on OpenZeppelin standards.

PayPal USD

Ripple RLUSD

Sky USDS

Usual USD0

Circle USDC

Ethena USDe

Ethena USDtb

First Digital USD

8 of the Top 10 Stablecoins

by Market Capitalization build with OpenZeppelin Contracts

Franklin BENJI

Ondo OUSG

Ondo USDY

OpenEden TBILL

Superstate USTB

WisdomTree WTGXX

BlackRock BUILD-I

BlackRock BUIDL

Centrifuge JTRSY

Circle USYC

10 of the Top 10 Tokenized Funds

by Market Capitalization built with OpenZeppelin Contracts

This is what sets us apart: we didn't just become a security company, we actually established the foundation everyone builds on. When you work with OpenZeppelin, you're working with the team that defined what secure smart contracts look like.

View Our Services → Talk to an Expert →

Research-driven security excellence

Our team conducts cutting-edge research and transforms it into impactful insights, tools, and standards that drive the entire industry forward.

Audits Completed

We don't just audit code—we shape the future of blockchain security through continuous research and innovation.

900+

Total Issues Uncovered

We understand attack vectors and edge
cases that others overlook.

10,000+

Critical & High Vulnerabilities Uncovered

Our deep expertise is why the world's most critical protocols trust us to safeguard billions in assets.

700+

Meet our Customers →

We’ve earned our position as the security partner of choice by upholding our uncompromising commitment to excellence.

Setting tomorrow's standards today

OpenZeppelin actively contributes to shaping new blockchain standards across critical emerging areas:

Tokenization & Real World Assets

Security token frameworks

Building compliant security token frameworks including ERC-3643 (T-REX) for regulated exchanges.

Universal RWA interface

Authoring ERC-7943 (Universal RWA Interface).

3643 Association member

Member of the 3643 Association alongside major blockchain companies and financial institutions

Privacy

Confidential fungible tokens

Co-authoring ERC-7984 (Confidential Fungible Token) for encrypted balances and confidential transfers.

Email-based identity

Co-authoring ERC-7969 (DKIM Registry) for email-based identity verification.

Confidential Token Association

Founding member of the Confidential Token Association.

Private shared state

Advancing Private Shared State coordination and Confidential Multisig capabilities.

Chain Abstraction

Crosschain coordination

Leading cross-chain coordination through the Open Intents Framework with contributions to ERC-7683 (Cross Chain Intents) and ERC-7888 (Cross Chain Broadcaster).

Messaging gateway

Co-authoring ERC-7786 for a unified crosschain messaging gateway.

Readable signatures & batching

Co-authoring ERC-7739 (Readable Typed Signatures) and ERC-7821 (Minimal Batch Executor).

Modular smart accounts

Building modular Smart Account standards that work across multiple ecosystems.

Signature verifiers

Authoring ERC-7913 to standardize signature-verification logic.

Trusted by industry leaders

From critical blockchain infrastructure and DeFi protocols to global financial institutions, the organizations shaping blockchain's future rely on OpenZeppelin's expertise.

Our customers

All

Layer 1

Layer 2

Financial Institutions

DeFi

Infrastructure

Filters

All

Layer 1

Layer 2

Financial Institutions

DeFi

Infrastructure

DTCC

Ethereum Foundation

Aave

Coinbase

Arbitrum

Fireblocks

BitGo

Uniswap Labs

Uniswap Foundation

Morpho

WisdomTree

ZKsync

ANZ

Stellar

UMA

Zama

The Graph

Polkadot

Optimism

1inch

Starknet Foundation

Lido

Scroll

Synthetix

Matter Labs

Avalanche

The Sandbox

Ripple

Mantle

Euler Labs

Lens Protocol

Taiko

Origin Protocol

Sei

Decentraland

Axelar

Tally

Linea

Radiant

Mountain Protocol

Pimlico

Lombard

Midnight Foundation

Dojo

USDT0

Jovay Network

ADI Foundation

Across

Your security partner, not just a vendor

OpenZeppelin empowers financial institutions and blockchain organizations to operate securely onchain. From protocol launches to enterprise-grade infrastructure, we deliver the expertise, compliance readiness, and trust required to protect digital assets at scale.

View Our Services Talk to an Expert

The security partner trusted by the world's leading financial institutions and blockchain protocols