Professional Services Companies

Sentnl is a blockchain security firm that provides smart contract audits, blockchain protocol audits, EVM audits, penetration testing, fuzzing, and tokenomics audit and design services. The firm operates across multiple blockchain chains and serves protocol developers, DeFi projects, and enterprise Web3 teams. Sentnl's technical approach emphasizes protocol-level analysis, with documented discovery of critical vulnerabilities in Ethereum client implementations. The firm publishes audit reports and certificates on GitHub to provide transparency regarding reviewed projects. Services are designed to identify security vulnerabilities and design issues in blockchain systems and token mechanisms.

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.

Solidus Wealth is a consulting firm that provides services in Bitcoin self-custody, digital asset structuring, and multigenerational wealth planning. The firm offers three primary service lines: Solidus Compass, which covers single-signature wallet setup and accumulation strategy; Solidus Vault, which provides multisignature custody with keys distributed across multiple continents using 2-of-3 or 3-of-5 configurations; and Solidus Structure, which designs legal frameworks using LLCs, family holdings, foundations, and trusts for asset protection and succession planning. The firm serves high-net-worth individuals and family offices seeking to maintain direct custody of Bitcoin and other digital assets while operating within compliant legal structures across multiple jurisdictions. The firm operates in Portuguese and Brazilian markets, with website content available in English and Portuguese.

Soter is an insurance provider licensed by the Dubai Financial Services Authority, operating from the Dubai International Financial Centre. The company offers institutional insurance products designed for digital asset operations, including Directors and Officers liability, Professional Indemnity and Errors and Omissions coverage, Crime insurance, Specie insurance, Slashing coverage, and Smart Contract coverage. The platform addresses insurance capacity gaps in the digital asset sector by providing risk transfer mechanisms for operational risks specific to blockchain and cryptocurrency infrastructure, such as validator slashing events and smart contract failures. The service targets institutional participants in digital asset markets, including cryptocurrency hedge funds, custodians, exchanges, and asset managers.