Crypto & Web3 Startups
3,916 companies tagged Crypto & Web3, with their investors and founders.
Sonorus is a decentralized music platform that combines AI-powered composition tools (BeatMint AI) with community-driven music discovery and rewards mechanisms (TrendFi), enabling users to create and vote on music while earning through a governance token ecosystem.
1 investor
Sooho.io builds blockchain-based financial infrastructure with a focus on stablecoins and institutional digital-asset security, letting services add bank-grade financial features. It offers stablecoin issuance and management tools alongside AI-driven smart contract security products, serving large enterprises and financial institutions.
1 investor
Sora Ventures is an Asia-based investment firm that acquires and operates publicly traded companies while implementing Bitcoin treasury strategies and backing web3 and digital asset infrastructure. The firm focuses on accelerating Bitcoin adoption across Asia through operational involvement in public companies and long-term partnerships with institutional allocators.
1 investor
Sova facilitates access to private credit and regulated custody for qualified Bitcoin and Ethereum holders by coordinating direct introductions with Kraken. The company aggregates demand and advocates on pricing and terms without holding client assets.
1 investor
The Sovrin Foundation is a nonprofit organization that administers the governance framework for the Sovrin Network, a public utility that enables self-sovereign digital identity on the internet. It works to keep the Sovrin identity system public and globally accessible.
1 investor
SPACE ID operates a Web3 domain and identity platform where users can search, register, trade, and manage blockchain-based names across multiple top-level domains and name services. It also offers a Web3 Name SDK and API for integrating verified Web3 domains, along with a permissionless protocol for communities to launch their own TLDs.
1 investor
SpaceChain builds space-based security and key-management infrastructure for the global financial industry, offering products such as Tethys for secure digital banking, satellite mission design and manufacturing, and blockchain-integrated satellite payloads. It combines fintech and space expertise to provide secure infrastructure, SaaS, and IT consulting for clients in the US, UAE, UK, and EU.
1 investor
Space Markets operates a marketplace for the orbital economy, offering Event Markets that price and hedge mission risk (launch windows, deployments, capacity milestones) as Yes/No contracts settled in USDC on Base, and Asset Leasing Markets that connect infrastructure operators with teams needing verified capacity, with payment released after delivery is confirmed. It serves teams supplying, buying, financing, and building orbital infrastructure across launch, communications, compute, power, and lunar operations, and supports specialized agents that discover capacity, evaluate risk, and coordinate programmable settlement.
1 investor
Sparenadvisory provides advisory and back-office services for investors, including strategy design, investment education, financing solutions, and operational support on a subscription basis.
1 investor
Sparrow Finance is a goal-oriented bitcoin savings platform and community built for women.
1 investor
Slabs is building a clothing and footwear platform embedded with its LNQ One chip, enabling blockchain-authenticated physical products for Web3. It also plans a marketplace for discovering these products and augmented reality features that turn surfaces into interactive workstations.
1 investor
Spectra is a permissionless, on-chain protocol for yield tokenization that splits yield-bearing assets into tradable principal and yield tokens, letting users access fixed-rate yield, trade interest rates, or earn on liquidity. It integrates with lending markets, liquid staking, and stablecoin issuers across multiple networks, with curator-managed vault strategies.
1 investor
Spellfire is a digital and physical collectible card game (CCG) available across Windows, Mac, iPhone, and Android, offering players companion tools, a digital card marketplace, and a shop for physical cards. It also runs a community platform for news, discussion, and player engagement.
1 investor
SpendTheBits develops StableNet, an infrastructure platform that enables institutions to use stablecoins for compliant cross-border payments and digital asset transactions. The company targets financial institutions and serves as a regulatory-compliant intermediary for institutional stablecoin payments globally.
1 investor
Silicon Prairie operates an investment crowdfunding platform that allows companies to raise capital by choosing their own security types and offering terms to both accredited and ordinary investors. The platform specializes in facilitating compliant capital raises across different offering exemptions for startups and small businesses.
1 investor
Sphinx is an end-to-end encrypted chat application built on the Bitcoin Lightning Network, operating without a central server. It also supports decentralized social media and payments, letting users pay content creators and make purchases in bitcoin.
1 investor
SPICE deploys collateral to curated private credit books using on-chain infrastructure, mirroring real-world collateral to give depositors verifiable guarantees. It provides a data layer for transparent, queryable risk profiles and automatically matches LPs with borrowers based on risk, serving investors and autonomous agents in private credit markets.
1 investor
SpiderDAO is a hardware-based DAO governance framework built on Polkadot that combines hardware and software tools to enable fairer on-chain voting and mitigate issues like plutocracy, vote-buying, and whale manipulation. It also provides tools aimed at bringing online privacy to end users.
1 investor
Spirit of Satoshi is an AI language model trained on data reflecting Bitcoin, Austrian economics, and Libertarian philosophies, positioned as an alternative to general-purpose chatbots like ChatGPT. The model prioritizes factual accuracy within that ideological framework rather than optimizing for harmlessness.
1 investor
Splits provides permissionless, self-custodied financial infrastructure built on open-source smart contracts, offering subaccounts, treasury management, accounting, payroll, bank transfers, invoicing, and automations. It supports fiat, stablecoin, and crypto payments and exposes an API, CLI, and MCP server so both people and AI agents can operate accounts under cryptographic access rules.
1 investor
SporkDAO is a community-owned Colorado Limited Cooperative Association that operates ETHDenver, Bufficorn Ventures, and related Web3 initiatives, using the $SPORK token to reward member participation and grant governance rights. Members join by attending ETHDenver in person and staking $SPORK tokens to unlock event access and community perks.
1 investor
Sportcash One builds AI chat, Web3, and gaming tools for the sports industry to increase fan engagement and help sports communities monetize. Its offering includes an NFT marketplace and tokenization for sports.
1 investor
Spree provides an SDK and settlement layer that lets brands offer instant, spendable rewards redeemable at over 4 million merchants at the point of payment. It targets loyalty programs across verticals such as travel, replacing delayed points systems with real-time settlement.
1 investor
A payment platform that enables custom payment links for bank transfers and cryptocurrency transactions, allowing users to send funds to wallets and purchase airtime. The service targets individuals and businesses in Africa seeking flexible payment options with real-time transaction tracking on blockchain.
1 investor








