Crypto Companies Directory

Sigil is a European crypto hedge fund founded in 2019 that offers two distinct strategies to qualified investors: Sigil Core, a high-risk directional strategy targeting dynamic crypto assets, and Sigil Stable, a market-neutral strategy designed to capture market inefficiencies with low volatility. The fund is co-founded by Pavel and Fiskantes, and the team maintains significant skin in the game by allocating at least one-third of AUM to internal capital. Sigil targets institutional and qualified private investors seeking managed exposure to the crypto asset class without conducting their own research. The fund provides investors with dedicated dashboards offering 24/7 access to portfolio data, performance metrics, and history, and is registered with a financial regulator (GFSC visible in footer). Notable institutional investors include WOOD and Company and Miton Group.

Sig.Network is a cross-chain messaging and execution layer that enables smart contracts deployed on one blockchain to execute native transactions on other blockchains without bridging or wrapping assets. The core architecture uses a decentralized MPC validator set to produce threshold signatures, converting cross-contract calls into standard signed transactions that are submitted directly to destination chain mempools, supporting Ethereum, Solana, Polkadot, and Bitcoin. The primary users are DeFi application developers who want to access liquidity and assets across ecosystems from a single deployment, without migrating contracts or adopting new tooling. Sig.Network launched its Ethereum mainnet in March 2025 and Solana mainnet in August 2025, with Polkadot and Bitcoin integrations on the roadmap.

Silhouette is a decentralized trading protocol designed to provide encrypted order flow for traders on Hyperliquid. The protocol routes trades through HyperCore's central limit order book while encrypting trade strategies prior to execution. This architecture allows traders to access Hyperliquid's liquidity pool without fragmenting it, while obscuring position sizes and trading strategies from potential front-running and maximal extractable value (MEV) exploitation. The system is intended for on-chain traders seeking to conceal their trading activity from automated trading systems and other market participants capable of exploiting order information.

Silvermine Capital Advisors, LLC is an investment firm that allocates capital across the digital asset ecosystem. The firm invests in early-stage and growth-stage cryptocurrency and blockchain companies through venture and special situations strategies. Its investment approach encompasses multiple theses within digital asset investing, including participation in fundraising rounds for blockchain projects. The firm's specific headquarters location is not publicly disclosed.

Simple is a stablecoin-focused mobile wallet app that lets users store, send, receive, and swap stablecoins across 150+ tokens. It includes a crypto debit card (Simple Card) for everyday spending, an IBAN for fiat integration, savings containers called Jars, staking/earn features, and AI-assisted research tools. The app abstracts gas fees from users and supports wallet-to-wallet payments via shareable links or shake-to-send gestures. It has been covered by outlets including Bitcoin.com, Bitcoinist, and CryptoNews, and conducted a joint study with Changelly on crypto card usage habits.

Simple Proof is a document timestamping and integrity verification service that anchors cryptographic hashes of digital files to the Bitcoin blockchain. The system generates a hash fingerprint of a document at creation, submits that hash to the Bitcoin blockchain through open protocols, and enables independent verification of the document's existence and authenticity at a specific point in time via Simple Proof links or self-hosted open-source software. The platform provides an API, developer console, and enterprise integration capabilities for incorporation into existing document workflows. The architecture qualifies as AWS Qualified Software. Key applications include verification of government records and tamper-proof video surveillance through a Rolling Timestamps product. The service is designed for organizations in government, enterprise, and institutional sectors requiring document authenticity verification and audit trails.

SimplifyLabs develops white-label cryptocurrency infrastructure software comprising multiple integrated components: a crypto exchange platform, OTC trading software, Telegram-based trading bots, a liquidity aggregation hub, a cryptocurrency payment gateway, and crypto card issuance solutions. The platform is designed for entrepreneurs and businesses seeking to deploy cryptocurrency services using pre-built, modular technology rather than custom development. The architecture enables exchange operators, fintech startups, and cryptocurrency service providers to reduce development timelines and associated costs. SimplifyLabs offers guidance on regulatory compliance frameworks, including MiCA requirements, through partnerships with legal firms to assist clients in establishing compliant operations within the EU.

The Singapore Blockchain Club is a dynamic community that brings together blockchain enthusiasts, developers, investors, and industry leaders. This vibrant group provides a platform for individuals to connect, collaborate, and exchange ideas on the latest trends and innovations in the blockchain space. Through regular meetups, workshops, and networking events, the club fosters a supportive and informative environment. Participants have the opportunity to learn from experienced professionals, explore real-world applications of blockchain technology, and stay up-to-date with the evolving regulatory landscape. By creating a strong sense of community, the Singapore Blockchain Club empowers its members to contribute to the growth and development of the blockchain ecosystem in Singapore and beyond.

Singularity Venture Hub is a platform providing digital asset management and startup support services. The treasury management service line offers custody integration, cross-venue liquidity orchestration, delta-aware market making across centralized and decentralized exchanges, and risk reporting functionality for protocols, decentralized autonomous organizations, and foundations. The incubation service line supports Web3 founders through token design assistance, governance structuring, go-to-market strategy development, and introductions to capital and liquidity partners. The platform operates in association with the ASI Alliance and maintains connections to SingularityNET, SingularityDAO, and SingularityFinance. Operations are conducted under VASP and CASP regulatory frameworks and target regulated entities and institutional clients.

Singularry is a decentralized finance application built on BNB Chain that integrates yield optimization functionality with a token launch mechanism. The yield component includes automated lending vaults and AI-generated strategy playbooks for assets including USDT and USD1, with protocol integrations to TronDAO and Venus Protocol. The launchpad component provides token deployment capabilities with automatic graduation to the Thena.fi decentralized exchange. The platform operates as a non-custodial, on-chain system where users retain control of assets throughout all transactions. Core functionality targets users engaged in yield farming and token creation, offering automated strategy execution without requiring manual intervention or management. The technical architecture centers on AI-driven strategy generation and execution as its primary mechanism for optimizing user positions across integrated protocols.

SKY.AI is a blockchain data infrastructure platform that provides extended Model Context Protocol (MCP) services for large language models to query and interact with on-chain data in real time. The platform offers over 60 tools for on-chain data queries, transaction builders, signature and verification utilities, and decentralized identifier (DID) tools, with support for BSC, Solana, Ethereum, and Base networks. Its architecture extends the MCP specification to maintain full compatibility with Anthropic's original MCP standard while adding blockchain-specific functionality for ABI and metadata resources, along with chain-aware dynamic tooling. The platform serves three user segments: end users performing LLM-assisted on-chain analysis, ecosystem builders integrating agent capabilities into applications, and developers building decentralized applications and smart contracts through IDE plugins for tools including Cursor and Cline.

SlinkyLayer (formerly branded as Slinky Network) is a fulfillment layer for agentic intents, designed to let AI agents access and pay for on-chain skills and external APIs without human-facing authentication barriers. The platform replaces traditional API key management and subscription billing with wallet-signature-based stateless access and atomic micropayments using the x402 payment protocol, enabling pay-per-execution rather than monthly tiers. Skill creators earn 95% of revenue paid directly to their wallets in real time, positioning SlinkyLayer as an app store or marketplace where developers can publish monetizable agent skills. The product targets developers building autonomous AI agents that need programmatic, crypto-native access to internet services, as well as API and tool creators seeking a distribution and monetization channel in the machine economy.

SlowMist is a blockchain and smart contract security firm providing audit and threat intelligence services to cryptocurrency industry participants. The firm offers exchange security audits, wallet security audits, blockchain protocol audits, and smart contract audits, along with red teaming, incident response, and defense deployment services. SlowMist operates MistTrack, an on-chain anti-money-laundering and asset-tracing tool, and maintains a Blockchain Threat Intelligence platform that aggregates data from community partners to support collaborative threat defense. The company serves crypto exchanges, wallet providers, DeFi protocols, and blockchain projects requiring gray-box and white-box security assessments.

SMAPE Capital is a venture capital fund focused exclusively on investing in tokenised economies and internet-native blockchain ecosystems. The fund targets early-stage crypto and Web3 projects, providing hands-on founder support alongside capital, with a stated emphasis on decentralisation, open markets, and digital asset sustainability. Its portfolio includes blockchain infrastructure and DeFi projects such as Arcium, Aizel, and Berachain, reflecting a broad mandate across L1s, DeFi protocols, and Web3 infrastructure. The core team brings over a decade of combined digital asset experience, and the fund describes itself as a global vehicle operating with European values, adhering to institutional-grade investment standards.

SmartCoin is a custodial cryptocurrency exchange platform operated by Smart Coin OÜ, a company registered in Tallinn, Estonia. The platform allows users to purchase Bitcoin and other cryptocurrencies using Visa or Mastercard debit and credit cards. Identity verification (KYC) is required during the transaction process. The service incorporates AML/KYC procedures and refund policies aligned with EU regulations for virtual asset service providers. The platform discloses transaction fees and implements fraud risk mitigation measures.

Smilee Finance is an on-chain derivatives protocol focused on decentralized volatility products, built on EVM-compatible blockchains. It raised a $2M seed round in May 2023 and is categorized under DeFi/on-chain derivatives. The protocol appears to enable users to trade or provide liquidity around implied volatility, a niche within DeFi derivatives distinct from standard perpetuals or options. The website was inaccessible at time of review due to a bot-protection challenge page, limiting further product detail.

Roo is a memecoin trading platform built on Solana that enables users to execute trades across multiple interfaces including X/Twitter, Discord, Telegram, and trading dashboards such as BullX, Axiom Pro, Dexscreener, and GMGN through a browser extension. The platform incorporates a rewards mechanism called Roobits, which are points earned through trading activity that can be converted to SOL. The referral program offers a 50% revenue share structure. Transaction execution is designed to achieve fills within two Solana slots, targeting sub-600ms latency. Platform fees are set at 0.845% when using a referral code. The system architecture integrates with existing trading interfaces to provide direct order execution without requiring users to navigate to a separate application.

Snorter Bot is a Telegram-integrated trading application for the Solana blockchain that automates trade execution on newly launched and existing tokens. The system comprises a bot interface accessible through Telegram and a native utility token, $SNORT, which provides access to premium features and fee reductions. Core functionality includes automated token sniping, on-chain trade execution with reduced fees, and early notification of new token launches. The bot operates as an alternative to manual trading through decentralized exchanges such as Raydium and Pump.fun. Token holders gain tiered access to enhanced features within the ecosystem. The smart contracts underlying the system have been audited by SolidProof and Coinsult.

Social Alpha Foundation (SAF) is a nonprofit organization that funds, educates, and advocates for blockchain technology applications in social impact contexts. Core activities include awarding grants to blockchain-for-good projects, conducting research in partnership with organizations such as the United Nations Environment Programme (UNEP), and organizing fundraising events that utilize blockchain-native mechanisms. The foundation serves nonprofits, social enterprises, and climate-action organizations seeking to implement blockchain infrastructure. SAF operates a fellowship program and an advisory committee to oversee grant cycles, with stated focus areas including integrated climate solutions and sustainable energy in low- to middle-income countries.

Soda Labs builds Bubble, a blockchain privacy middleware protocol that uses secure multi-party computation (MPC) and AES-256 encryption to provide end-to-end confidentiality for on-chain data across multiple networks. The protocol supports Ethereum, Polygon, Arbitrum, Optimism, Base, BNB Chain, Avalanche, zkSync, Linea, and Solana, positioning itself as a chain-agnostic privacy layer. Its core technical differentiator is MPC-based data leak prevention, ensuring that sensitive business and user data cannot be exposed even if an individual node is compromised. The product targets institutional and enterprise blockchain developers seeking to shield on-chain interactions from competitors, MEV bots, and phishing actors. Soda Labs is a developer-infrastructure company with documentation hosted on Gitbook and a scheduling link suggesting a small, direct sales team.

SoDEX is a non-custodial decentralized exchange developed by SoSoValue and deployed on the ValueChain L1 blockchain. The platform supports spot and futures trading across multiple assets including BTC, ETH, DOGE, LINK, and SOL, with USDC designated as the primary quote currency. The system architecture includes a points and leaderboard system, an integrated block explorer, and a research terminal. The $SOSO token functions as both the native gas token for ValueChain and a governance token. SoDEX operates as a vertically integrated trading and analytics platform designed for retail cryptocurrency users.

Softstack is a service firm providing smart contract security audits, blockchain development, and Web3 consulting across multiple blockchain ecosystems. The security practice includes smart contract auditing and cybersecurity assessments. The development arm supports various blockchain ecosystems and programming languages, delivering custom decentralized application builds and protocol integrations. The firm operates internal research divisions including TixLabs and BioHash, with BioHash focused on Web3 biometric authentication systems. Softstack functions as a full-service provider offering combined technical development and advisory services for blockchain-based projects.

SOLAI Limited operates cryptocurrency mining and data center infrastructure across two facilities: one in Ohio, US with 82.5 MW capacity and one in Ethiopia with 51 MW capacity. The company manufactures proprietary mining hardware, deploying over 5,552 machines for self-mining of Litecoin, Dogecoin, and Belenus. It provides Bitcoin hosting services with aggregate hash rate capacity of 2,082 PH/s. The company maintains a Solana token treasury and operates a validator node that generates staking rewards. SOLAI has issued DOLAI, a USD-backed stablecoin deployed on the Solana blockchain, developed in collaboration with Brale Inc. Core business operations encompass hardware manufacturing, data center hosting services, blockchain staking, and stablecoin issuance.

Solana Mobile develops Android smartphones with integrated Web3 capabilities. The Seeker device includes hardware-level security features comprising a Seed Vault Wallet and a Trusted Execution Environment (TEEPIN) for on-chain identity verification. The device ships with a native dApp store and implements a unified Seeker ID for on-chain identity management. The SKR token functions as the native economic asset within the ecosystem, creating incentive alignment across developers, users, hardware manufacturers, and network participants. Developers can build and distribute applications through the dApp store without platform restrictions and retain earnings from their applications. Users can earn SKR through ecosystem participation. The organization also operates hackathons and builder grant programs to support development within the mobile Web3 ecosystem.