Crypto Companies Directory

Strategic ETH Reserve (SER) is a real-time analytics dashboard that tracks Ethereum holdings across a defined set of corporate, institutional, and protocol entities collectively referred to as SER participants. The platform aggregates on-chain ETH balance data for 67 tracked entities, displaying total reserves, 7-day supply dynamics, and individual participant activity such as acquisitions and disposals. It serves researchers, investors, and market observers who want a consolidated view of how organizations are accumulating or reducing ETH treasury positions. The site also provides a Telegram alert channel for instant notifications on reserve changes, and has been cited as a data source in crypto media coverage of ETH treasury strategies.

Stratos is a decentralized infrastructure network providing distributed storage, compute, and database services accessible on-chain. The platform operates with a native token, STOS. The project architecture has evolved to support AI agent deployment within a user-controlled, privacy-focused environment referred to as Stratos OS. The system is designed for users and developers requiring sovereign control over AI systems and data without dependence on centralized cloud infrastructure. Core components include distributed storage and compute resources, database services, and mechanisms for deploying and managing AI agents on the network. The platform maintains a public development repository and community presence across multiple platforms.

Stratosphere Labs develops localized Web3 infrastructure designed to integrate blockchain ecosystems with Web2 businesses. The primary product is Sphere Wallet, a non-custodial wallet implemented through a Telegram bot interface and standalone web application, intended to reduce adoption barriers for users and businesses entering blockchain networks. The organization operates a Fellowship program providing developer education and support, and organizes community events including founder networking sessions conducted in partnership with NFT projects. The platform targets developers requiring Web3 tools and businesses seeking to incorporate blockchain functionality into existing systems.

Streamflow is a token distribution platform built on the Solana blockchain that provides infrastructure for managing vesting schedules, airdrops, staking services, token locks, and token minting operations. The platform uses smart contracts to automate on-chain token transfers, replacing manual spreadsheet-based distribution workflows. Streamflow offers an SDK and white-label portal options that enable projects to integrate token distribution functionality into their own branded interfaces. The platform serves projects across gaming, DeFi, and NFT sectors and has an associated native token, STREAM.

Stride is a liquid staking protocol built for the Cosmos ecosystem and Celestia, allowing users to stake tokens such as ATOM, TIA, DYDX, OSMO, and others while receiving liquid staked derivatives (e.g., stATOM, stTIA) that can be deployed elsewhere in DeFi. The protocol currently supports 17 tokens and reports approximately $7.61M in total value locked across around 40,000 users. Stride operates its own appchain within the Cosmos ecosystem, using IBC to communicate with host chains and delegate staked assets to validators. The protocol has a native governance and utility token (STRD) and recently launched stBGT, expanding into the Berachain ecosystem.

String Payx (formerly String Metaverse) is a Canadian crypto payments company operating under a FINTRAC Money Services Business license. Its core product is a Visa crypto debit card that converts cryptocurrency to fiat at point of sale across 180+ countries, with no conversion fees and 10% cashback on purchases. The platform also offers virtual card issuance with spend controls, KYC/KYB onboarding, and real-time AML and fraud monitoring, targeting creators, gamers, athletes, and businesses needing global crypto-to-fiat payment infrastructure. The company positions itself within a Web 4.0 framework and serves both retail and enterprise segments across the EU, UK, US, Asia, and MENA regions in addition to Canada.

Strip Finance is a decentralized protocol that provides liquidity services for non-fungible token (NFT) assets. The platform enables NFT holders to use their assets as collateral to borrow capital at specified interest rates. The protocol addresses liquidity constraints in NFT markets through two primary lending mechanisms: peer-to-peer lending, where individual parties negotiate terms directly, and pooled lending, where capital is aggregated for lending operations. The platform includes price discovery tools designed to support NFT valuation. Participants include NFT holders seeking to access capital against their holdings and liquidity providers who can contribute capital either through direct bidding on individual loans or by depositing into lending pools. The protocol operates a native token, STRIP, which is listed on cryptocurrency exchanges. The project was established by Varun Satyam and includes advisors from established blockchain projects.

Strive Inc. is a structured finance and institutional asset management company that maintains Bitcoin as a core treasury reserve asset. The company operates multiple business divisions including a preferred equity instrument designated SATA that distributes monthly dividends classified as Return of Capital, an ETF and direct indexing business operated under the Strive Funds brand, and advisory services for 401k plans and corporate governance. The company's product offerings are designed to provide income-oriented instruments with Bitcoin exposure, distributed through major brokerages to retail investors and institutional clients seeking Bitcoin-denominated capital allocation strategies.

Strobe Ventures (formerly BlockTower VC) is a crypto-native venture capital firm headquartered in New York City. The firm invests pre-consensus, focusing on early-stage crypto and blockchain companies across DeFi, infrastructure, payments, and Web3 gaming. Its portfolio includes notable crypto projects such as Ethena, Ledger, Maple, Morpho, Aptos, Centrifuge, and Obol Labs, reflecting a broad mandate across the crypto stack. Strobe operates as a lean, high-conviction fund with over $235 million in assets under management, taking a hands-on approach with a concentrated number of portfolio companies.

Stroom is a liquid staking protocol that allows Bitcoin holders to deposit BTC into Lightning Network channels in exchange for strBTC, a wrapped token that accrues yield and is compatible with Ethereum-based decentralized finance applications. The protocol directs deposited Bitcoin through validator-operated Lightning Network nodes, where routing activity generates yield from transaction fees. These fees accrue to strBTC token holders. Economic security is maintained through integration with Symbiotic restaking infrastructure. Node operators participating in the protocol include Allnodes, Stakin, P-OPS, and Gateway.fm.

SubWallet is a non-custodial, open-source Web3 wallet designed primarily for the Polkadot and Substrate ecosystems, with additional support for Ethereum-compatible networks. It supports over 150 networks, 450+ tokens, and 80+ dApps, accessible via browser extensions (Chrome, Brave, Firefox, Edge), iOS and Android apps, and a web dashboard. The wallet allows users to manage multiple seed phrases under a single master password while retaining full self-custody of private keys and assets. SubWallet is recognized as an official wallet by Polkadot, Moonbeam, and Substrate, and its codebase is fully open-source under the Koniverse GitHub organization.

Rialo is a blockchain network developed by Subzero Labs that integrates on-chain programmability with real-world financial systems. The network architecture supports hybrid finance use cases, enabling institutions and users to interact with decentralized infrastructure alongside traditional financial systems. The platform functions as a blockchain that bridges decentralized and centralized financial components. The development team has experience in blockchain infrastructure and product development, with prior involvement in the NEAR Protocol ecosystem. The platform is currently in a waitlist stage as it progresses toward broader deployment.

Succinct is a cryptography infrastructure company that develops zero-knowledge proof systems for blockchain and internet applications. Its primary product, SP1, is an open-source zero-knowledge virtual machine that enables developers to write zero-knowledge programs using standard Rust, reducing technical barriers to ZK application development. The platform includes a decentralized Prover Network that functions as a marketplace for proof generation, distributing computational work across a network of independent provers. The network operates with a native token, PROVE, that facilitates ecosystem transactions. SP1's architecture allows developers to compile Rust code into zero-knowledge circuits without requiring specialized cryptographic expertise. The system has been adopted by organizations including Coinbase, Google Quantum AI, Polygon, Optimism, Arbitrum, and Worldcoin for various applications. Succinct also provided technical assistance to Mantle in implementing a zero-knowledge rollup architecture.

SudoSwap is a decentralized NFT marketplace built on a set of open-source, non-upgradeable smart contracts that enforce creator royalties entirely on-chain without relying on blocklists or off-chain configurations. The protocol supports ERC721 and ERC1155 assets priced in ETH or any ERC20 token, and offers automated market-making via liquidity pools with customizable bonding curves, enabling dollar-cost-averaging strategies and programmatic liquidity provisioning. It operates across multiple EVM-compatible networks including Ethereum, Arbitrum, Base, and Berachain, and its listings are indexed by third-party data providers such as Reservoir and The Graph. The platform is governed by a DAO using the SUDO token, and was co-founded by a developer known as 0xmons; it targets both NFT collectors seeking bulk trading tools and creators seeking enforceable royalty structures.

Sugarverse is a game studio that develops mobile and blockchain-based games. Its primary title, Sugar Match, is a match-3 player-versus-player game deployed on Etherlink, a Layer 2 solution for Tezos, with releases on iOS and Android platforms. The ecosystem includes a native token, CNDY, staking mechanisms, an NFT collection designated Sugar Bears Club, and a loyalty program. The project has established partnerships with Tezos, Etherlink, Shorooq, and Poolz.

SuiAI is a token launchpad and AI agent creation platform built on the Sui blockchain. The platform allows users to deploy tokens and create AI-powered agents using a bonding curve mechanism, where agent capabilities unlock progressively as tokens move along the curve. Available agent features include forum chat, X post generation, Telegram chat integration, meme generation, music generation, and a Sentient AI tier. The platform uses its native SUAI token as the exchange medium for purchasing and selling agent tokens. The ecosystem includes NFT minting functionality, staking mechanisms, and a contributor ranking system. The platform operates as a multi-feature on-chain ecosystem rather than a single-purpose protocol.

Suilend is a non-custodial lending and borrowing protocol built on the Sui blockchain, allowing users to deposit assets as collateral and borrow against them at algorithmically determined interest rates. The protocol supports a broad range of assets including SUI, liquid staking tokens (sSUI and a suite of ecosystem LSTs), stablecoins (USDC, suiUSDT, AUSD), and wrapped Bitcoin variants. It is designed for DeFi users seeking yield on idle assets or leverage through on-chain borrowing, with loan-to-value ratios and borrow weights set per asset. Suilend also operates adjacent products including SpringSui (a liquid staking interface) and STEAMM, and issues a native SEND token used within its ecosystem.

SuiNS is a name service protocol for the Sui blockchain that enables users to register human-readable .sui domain names linked to on-chain wallet addresses. The system replaces hexadecimal address strings with shorter, memorable identifiers to reduce transaction errors. SuiNS names function as NFTs, allowing users to hold, transfer, gift, or sell them on secondary markets. The protocol integrates with wallets, DeFi protocols, NFT marketplaces, and infrastructure tools within the Sui ecosystem. SuiNS is open source and provides an SDK for developers to implement name resolution functionality in third-party applications. The protocol is operated by the SuiNS Foundation.

SUKU is a Web3 platform that provides consumer-facing tools for cryptocurrency transactions and interactions. Its primary products are SukuPay, a non-custodial money transfer service that enables transactions using phone numbers as identifiers without requiring users to download a separate application, and Suku Wallet, a browser extension that allows users to authenticate via X (Twitter) credentials and perform token swaps or interact with decentralized applications using SUKU tokens to pay transaction fees.

Sumi is a multi-chain crypto portfolio tracker currently in private beta, supporting wallet monitoring across 70+ blockchains including Bitcoin, Ethereum, Solana, Arbitrum, and Polygon. The platform automatically detects DeFi positions across major protocols such as Curve, Uniswap, and Balancer, and provides portfolio analytics including health scoring, PnL tracking, and benchmark comparisons against BTC and ETH. A notable technical claim is bare-metal infrastructure with bank-grade encryption and no reliance on third-party cloud providers, positioning it as a privacy-focused alternative to cloud-hosted trackers. It also offers ML-powered tax reporting with automated cost basis calculations and CPA-ready exports, targeting both retail and institutional crypto users.

Summ is a cryptocurrency tax software platform that automates tax calculation and reporting for individuals, accountants, and businesses. The platform integrates with thousands of exchanges, wallets, and blockchain networks, including Coinbase, Binance, MetaMask, OKX, and Phantom, to aggregate transaction history and generate tax reports. The software produces reports compliant with IRS requirements, including Form 8949 and Form 1099-DA. Summ includes direct integration with TurboTax and H&R Block tax preparation systems. The platform operates through partnerships with MetaMask and Coinbase that enable it to function as an embedded tax solution within those platforms.

SumPlus is a decentralized finance stablecoin protocol that operates through a dual-token mechanism. The system enables users to mint stablecoins by staking mainstream cryptocurrency assets as collateral. The protocol incorporates yield management functionality and provides both retail and institutional user interfaces. Core components include minting infrastructure for stablecoin generation, yield accrual mechanisms tied to staked collateral, and governance structures based on decentralized community participation. The protocol integrates with composable financial tools and operates within a broader ecosystem of on-chain financial services designed to generate yield on deposited assets.

Sunburn Lab is a digital content publishing entity within the Sunburn universe. The organization produces and distributes digital content across multiple storytelling formats and platforms to reach audiences and support narrative expansion within its ecosystem.

Sundae Labs is a blockchain software company that develops decentralized financial infrastructure on the Cardano network. SundaeSwap is its primary product, functioning as an automated market maker (AMM) decentralized exchange that facilitates non-custodial token swaps. The company maintains a product portfolio that includes Gummiworm, a Layer 2 scalability solution built on Hydra; Sundae Governance, a voting platform for decentralized autonomous organizations; Gastronomy, a UPLC debugger for Cardano smart contracts; and Sundae Rewards, a non-custodial token distribution platform. Sundae Labs also provides professional services to projects within the Cardano ecosystem.