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View Block4's top competitors like Blockchain App Factory, ChainSafe Systems, and Elementus.

OpenZeppelin
Founded in 2015, OpenZeppelin is the world leader in securing blockchain applications and smart contract systems. Its bedrock open source Contract Libraries are a public good and industry standard for smart contract development. OpenZeppelin’s professional expertise, unified with the Defender developer security platform, integrates through clients’ development lifecycles, so teams can plan, code, audit, deploy and operate projects faster and more safely. OpenZeppelin secures success for over a thousand trusted crypto protocols and organizations, including Coinbase, Ethereum Foundation, Compound, Aave, Uniswap, Matter Labs and ANZ Bank. With the success of our product, our security audits work, and our educational efforts, we have set industry standards for building secure systems in a fast-growing industry, which presents new programming paradigms. We are now excited to offer a development platform that will help the growing number of developers working on top of decentralized protocols build the applications that will reach mass adoption.
Private
$5.6M Revenue
https://openzeppelin.com/
121 Employees
ChainSafe Systems
ChainSafe Systems is an R&D firm specializing in blockchain and web3 infrastructure. We believe that empowering developers with blockchain-agnostic tools is essential for the future of decentralized systems.
Toronto, CA
Private
$15M Revenue
http://chainsafe.io
63 Employees
LeewayHertz
LeewayHertz is one of the first few companies to build and launch a commercial app on Apple's App Store. Our certified designers and developers have designed and developed over 100 digital platforms using AI, IoT, Web3, Metaverse and Blockchain technologies. At LeewayHertz, we have developed digital solutions for Fortune 500 companies and startups to ease their business functions with the latest technologies. Some of our reputed clients include ESPN, NASCAR, Hershey's, McKinsey, P&G, Siemens, 3M, Pearson and more. Being an award-winning software development company, we have also proven our expertise in AI development, offering a comprehensive suite of AI services, including AI/ML strategy consulting, custom model and solutions development, and AI integration and deployment. Our team of certified experts specializes in advanced AI technologies such as ML, computer vision, and natural language processing. LeewayHertz's expertise extends to multiple AI models, including GPT-4, LLaMA, PaLM-2, and more. If you're looking to harness the power of AI for transformative business success, LeewayHertz is your trusted technology partner. Join us at https://www.leewayhertz.com/
IN
Private
$52.5M Revenue
https://www.leewayhertz.com
186 Employees

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