Quantstamp
77 Geary St Fl 5, San Francisco, California, 94108, United States
Overview
Quantstamp is a leading blockchain security company specializing in ensuring the reliability and integrity of blockchain ecosystems. The company provides a range of security services, including comprehensive audits, protocol testing, and vulnerability assessments. Additi
- Total investments
- 17
- Lead investments
- 2
- Investments · 12mo
- 2
- Active investors
- 9
Sector focus
- Blockchain
- Cyber Security
- Security
Investment portfolio
- Resolv
Participated · Seed · Jan 2026
Resolv is building the “recovery layer” for digital assets by enabling stolen ERC-20 tokens to be recovered via a transparent, decentralized arbitration process. Users first wrap their holdings into protected tokens (pTokens); if theft occurs, a freeze algorithm locks the stolen assets across chains. A randomly chosen panel of vetted blockchain-forensics experts then reviews evidence and, on a majority vote, authorizes automated fund recovery—eliminating any single point of control. Founded in 2023, the company already has 2,000 users in a closed-beta mainnet who aim to protect a collective $140 million, indicating strong early demand. Over $20 billion in crypto has been stolen since 2011, underscoring the need for such infrastructure. The newly raised capital will be used to expand the team, harden the core recovery stack, grow business development, and establish regulatory foundations. Management envisions becoming the default security layer as institutional capital continues to move on-chain.
- Hemi Labs
Participated · Equity · Aug 2025
Hemi offers a programmability layer for Bitcoin via the Hemi Virtual Machine (hVM), a full Bitcoin node embedded inside an Ethereum Virtual Machine that enables DeFi, restaking, and cross-chain composability. The protocol positions itself as a supernetwork that fuses Bitcoin's security with Ethereum-style developer flexibility and supports cross-chain 'Tunnels' for interoperability. Hemi is preparing for a token generation event (TGE) and has recently unveiled $HEMI tokenomics to support that launch. The company reports over $1.2 billion in total value locked on its network, more than 100,000 verified users, and a community exceeding 400,000 members. Hemi is backed by a network of over 70 ecosystem partners, including Sushi, LayerZero, MetaMask, and Redstone, and is led by co-founders Jeff Garzik, Maxwell Sanchez, and Matthew Roszak. The recent funding will be used to accelerate ecosystem growth and further enable Bitcoin-based decentralized finance. Hemi Labs is developing the Hemi Network, a modular blockchain powered by Bitcoin and Ethereum that aims to unlock new programmability and cross-chain capabilities. Core components include the Hemi Virtual Machine (hVM) that embeds a full Bitcoin node within an EVM, the Hemi Bitcoin Kit (hBK) to enable Bitcoin-native smart contract access, Proof-of-Proof (PoP) consensus for Bitcoin-derived security, and Tunnels for trustless cross-chain portability. The platform also emphasizes asset programmability features such as on-chain routing, time-locks, password protection, and gasless transfers. Hemi’s incentivized testnet is live and the team is targeting a mainnet launch in Q4 2024. The company announced a $15 million investment round to develop and launch the network. Founders named in the release are Jeff Garzik and Max Sanchez; the announcement was issued from Chicago.
- Rails
Participated · Equity · Jun 2025
Rails operates a perpetual trading platform that integrates centralized order processing with on-chain custody to offer a single-platform experience. Transactions are cryptographically aggregated and posted on-chain to preserve user privacy. Users can cryptographically verify transactions included in a Merkle tree via the company’s transaction explorer. The centralized platform is designed to match orders with sub-millisecond processing using a proprietary matching engine, enabling fast settlements and real-time account balance updates. User funds are held on-chain in an audited smart contract that tracks deposits, withdrawals, and fees. The company intends to use recent funding to expand operations and development efforts. Rails is a Toronto-based provider of a self-custodial crypto exchange for trading perpetuals that allows users to maintain control of their funds. Its core product combines a centralized order book and a proprietary matching engine for execution speed with blockchain-based decentralized custody via audited smart contracts and zero-knowledge proofs to mitigate fraud and theft. The platform is designed to give traders full control over funds without sacrificing speed or efficiency. Rails recently raised $6.2M in Seed financing to support expansion of operations and development efforts. Leadership includes CEO Satraj Bambra, co-founder & CTO Megha Bambra, and co-founder, President & COO Rick Marini.
- HEMI
Participated · Equity · Sep 2024
Hemi is a modular blockchain network built on Bitcoin and Ethereum designed to deliver superior scaling, security, and interoperability. Its core product offerings include the Hemi Virtual Machine (hVM), which integrates a full Bitcoin node within an EVM to let developers build smart contracts that work with both chains while remaining backwards-compatible with existing EVM dApps and wallets. The Hemi Bitcoin Kit (hBK) unlocks direct smart-contract access to granular Bitcoin state, enabling Bitcoin-native applications such as staking, lending markets, and MEV marketplaces. Other foundational features include Superfinality (a Proof-of-Proof consensus inheriting Bitcoin’s security), trustless cross-chain Tunnels for secure asset portability, and on-chain asset programmability (time-locks, routing, password protection, and gasless transfers). Hemi’s incentivized testnet is live and the team targets a mainnet launch in Q4 2024; the company announced a $15 million founding investment round to support development and launch. Hemi Labs was co-founded by early Bitcoin developer Jeff Garzik and blockchain security pioneer Max Sanchez and announced the round from Chicago.
- Hypernative
Led · Series A · Sep 2024
Hypernative is a Tel Aviv-based provider of real-time monitoring, risk detection, and automated response for Web3 that uses machine learning, heuristics, simulations, and graph-based detections. The platform tracks onchain and offchain data and identifies over 300 risk types across smart contracts, bridges, frontends, market manipulations, and private key theft. Its product set includes Guardian, a real-time transaction security solution that simulates the outcome of every transaction before approval, and integrations into wallets, exchanges, sequencers, liquidity pools, and frontends. Hypernative said it detected over $2.2 billion of losses in 2024 and is used by more than 200 customers to help protect over $100 billion in assets, while network coverage has expanded to 60+ chains. The company plans to expand its offering to include fraud prevention and wallet-level transaction protection as part of an end-to-end Web3 security platform. New funding will also be used to expand AI capabilities through higher-quality training data and to support team growth and customer-facing risk analysis and support. Hypernative provides a real-time monitoring, risk-detection, and automated response platform that protects Web3 applications and identifies the majority of attacks, giving users minutes to respond before exploits can do damage. The platform has expanded its network coverage to more than 40 chains and added hundreds of detectors. More than 100 Web3 projects use Hypernative, including Balancer, Chainlink, Circle, Quantstamp, Solana, Starknet, and Uniswap. The company has launched Hypernative Security Oracle, an inline solution to block attackers without degrading user experience, and Hypernative Screener, which screens addresses to identify risks prior to authorizing transactions. Led by CEO Gal Saige and based in Herzeliya, Israel, Hypernative plans to expand into new security stack verticals, build a Web3 security network, extend its global reach, and grow its team. The company intends to establish real-time monitoring and response as a standard security practice. Hypernative focuses on preventing web3 cyber attacks by detecting threats before they occur. In September the team launched Pre-Cog, a platform that monitors on- and off-chain data sources to predict threats. Since launch the company says Pre-Cog has helped users save tens of millions of dollars. The startup emphasizes "building detection early" and manually integrates tools into customer workflows. Its ideal clients include asset managers, hedge funds, traders, market makers, blockchains and protocols. Hypernative plans to build prevention workflows that provide end-to-end systems to mitigate risk without user intervention.