Crypto & Web3 Startups
3,436 companies tagged Crypto & Web3, with their investors and founders.
IOSG Ventures is a research-driven investment fund founded in 2017 that backs early-stage Web3 founders building infrastructure, middleware, security, and consumer applications. It also runs a builders program (IOSG Kickstarter) offering funding, mentorship, and go-to-market support to early-stage crypto projects.
2 investors
Irreducible builds infrastructure for cryptographic computing, focusing on zero-knowledge proofs and trust mechanisms online. The company develops hardware and software solutions for the blockchain and cryptography industry.
2 investors
JAN3 builds Bitcoin infrastructure and Layer 2 technologies (Lightning and Liquid), offering products including the AQUA non-custodial wallet, tokenization services for real-world assets, and Bitcoin advisory for individuals, enterprises, and nation-states. It also runs A1 Lab, a division building open-source, locally-run AI applications.
2 investors
Jupiter is a decentralized finance platform on the Solana blockchain that lets users swap tokens, lend and borrow crypto, trade perpetuals, use prediction markets, and manage a DeFi portfolio in one interface. It serves crypto traders and DeFi users.
2 investors
Kaleido offers a modular enterprise platform with pre-integrated products for tokenization, custody, digital assets, middleware, interoperability, and blockchain infrastructure. It provides network operators tools to build, operate, and govern settlement, payment, and digital asset networks.
2 investors
Kamino is a Solana-based DeFi protocol that provides lending, liquidity, and leverage services for cryptocurrency assets. The platform enables users to borrow and lend crypto, earn yields through staking and liquidity provision, and leverage positions across various Solana tokens.
2 investors
OpenGDP is an operating layer for real-world economic execution that unifies money, assets, and autonomous systems with institutional-grade controls, security, and speed for enterprises, institutions, and governments. It enables stablecoin settlement, asset tokenization, and orchestration of complex economic workflows across applications, institutions, and autonomous systems.
2 investors
Karma3 Labs builds a decentralized, onchain reputation and trust protocol for the open web, working with crypto protocols and developers to create reputation systems for their applications. The protocol targets decentralized governance, social networks, and marketplaces built on crypto rails.
2 investors
KAST is a stablecoin-powered financial platform that enables users to hold, send, and spend digital currency instantly across 170+ countries without traditional banking intermediaries. It serves globally mobile individuals and provides access to payment rails, card spending, and wealth-building tools backed by regulated financial infrastructure.
2 investors
Katana is an Ethereum Layer-2 blockchain (chain ID 747474) built on Agglayer's CDK OP Stack that settles to Ethereum and uses ETH for gas. It runs DeFi mechanisms such as VaultBridge and AUSD to generate yield from bridged assets, with liquidity concentrated across protocols including Sushi, Morpho, and Yearn, and it has a native token called KAT.
2 investors
Kumo provides software infrastructure and financing solutions for carbon removal projects by leveraging institutional debt capital rather than traditional equity funding. The company facilitates the flow of capital into climate action through the integration of legal frameworks and technology for carbon markets.
2 investors
Kinza Finance is a modular, permissionless DeFi lending platform where users can create or join curated lending pools and use assets as collateral to lend and borrow. It supports Liquid Restaking Tokens and Bitcoin staking via its native kBTC token (powered by Babylon), and uses a ve-Real-Yield tokenomics model with its native KZA token.
2 investors
Klima Protocol is open, blockchain-based infrastructure for voluntary carbon markets, recording purchases and retirements on a public ledger with on-chain proof and no retirement fees. It serves carbon buyers offsetting emissions and project developers or suppliers selling credits, connecting them through unified liquidity pools and standardized carbon classes.
2 investors
KnownOrigin is a blockchain-based marketplace where artists mint and sell digital artworks as NFTs, giving buyers proof of ownership, provenance, and authenticity. It started in 2018 in Manchester and connects creators with collectors of digital art.
2 investors
KoinBasket is a cryptocurrency trading app that lets users buy, sell, and invest in multiple cryptocurrencies, including through curated coin baskets. It targets retail crypto investors, including beginners, and offers features such as a demo mode.
2 investors
A free skateboarding archive built and operated by skateboarders as part of OpenSB. The platform preserves skateboarding-related content and materials for the skateboarding community.
2 investors
Krypto is a cryptocurrency platform for buying, selling, trading, and transferring digital assets, aimed at retail crypto users in India. The platform emphasizes low trading fees and secure digital asset management, though it has suspended new registrations and purchases due to Indian regulatory requirements.
2 investors
KryptoGO provides Web3 infrastructure for businesses, including wallet services (SDK, API, builder), analytics and CRM tools, asset management, and compliance/KYC solutions. Its products serve companies in areas such as GameFi, DeFi, Web3 fund management, and Web3 commerce.
2 investors
KuCoin is a cryptocurrency exchange where users can trade digital assets. It highlights proof-of-reserves transparency and ranks among the larger crypto trading platforms.
2 investors
Kwil provides a decentralized database and programming language for Web3 projects, enabling technical implementation of data ownership and privacy controls.
2 investors
KyberSwap is a decentralized exchange aggregator that analyzes token rates across many DEXs to route trades at better prices with lower slippage. It serves crypto traders across multiple blockchains and issues the Kyber Network Crystal (KNC) utility and governance token.
2 investors
LAMINA1 is a decentralized blockchain platform for building and managing digital assets, identity, and interactive experiences across platforms and virtual worlds without coding. It aims to support an open, interconnected online metaverse for creators and users.
2 investors
Striga provides regulated APIs for digital asset custody, trading, banking, and card issuing, letting businesses offer crypto and fiat neobanking services (virtual IBANs, wallets, and Bitcoin/stablecoin-linked cards) without holding their own licenses. The company handles compliance, KYC, and banking partnerships across 30+ countries in Europe, operating as a licensed Virtual Asset Service Provider under Estonia's MiCA regime.
2 investors
Latitude provides a Global Fiat Payouts API that sends funds from USD or stablecoins (USDC) to recipients worldwide, handling currency conversion, compliance, and last-mile delivery through local payment networks. It serves developers and businesses making cross-border payments across regions including Latin America, Europe, Asia Pacific, and North America.
2 investors