Protofire

Protofire is one of the earliest blockchain engineering firms, building and operating production Web3 systems since 2016. We spun out of Altoros and have shipped through every market cycle since, delivering 250+ projects for 60+ networks and 95+ protocols. We maintain Solhint, the open-source Solidity linter and security tool used by more than a million developers, and we build directly within the Chainlink, Safe, The Graph, and Blockscout ecosystems.

We are a full-stack blockchain engineering partner. Our teams design, ship, and operate the financial infrastructure that turns idle tokens into productive assets and gives ecosystems a reason for capital to arrive and stay.

What we build and run:

• Smart contracts and security. Solidity development, protocol engineering, audits, and static analysis with Solhint. We have secured $2B+ in on-chain assets across 120+ networks, with zero vulnerabilities across delivered projects.
• On-chain finance. Lending and borrowing markets, staking and yield vaults, stablecoin systems, and tokenized real-world assets, built on standards such as ERC-4626 and ERC-3643.
• Cross-chain and oracles. Chainlink price feeds and CCIP integrations, plus cross-chain messaging that moves liquidity and data between networks.
• Data and infrastructure. Subgraphs on The Graph, nodes, Blockscout explorers, and Safe multisig and custody, run on cloud and bare metal for high-usage and non-EVM networks. As an official Safe Guardian since 2017, the networks we deploy and maintain secure $2B+ in TVL across 120+ EVM chains.
• For banks, fintechs, exchanges, and asset managers, we build the on-chain products they launch under their own brand: embedded earn and yield, crypto-backed lending, own-brand vaults, tokenized treasuries, and stablecoin payment rails. We deliver them and then run them as managed on-chain operations. The team that ships your protocol is the same team that keeps it live. Launch is day one.

Selected outcomes:

• Balancer ve8020 Launchpad. A reusable vote-escrow framework that cut ve setup from roughly 17 days to about 3.
• Aethir liquid staking. An stATH module that keeps staked capital earning network rewards while it stays liquid across DeFi.
• DIA oracle on Midnight. 25 price feeds live in 61 days on a privacy chain, written in the Compact language.
• Somnia. A Chainlink-compatible oracle delivered in 92 days, plus a Blockscout explorer indexing up to 103M transactions a day.

We are trusted by teams including Aave, Balancer, Sky, and CoW Protocol, and have earned grants from ecosystems including the Ethereum Foundation, Optimism, and Aave. Read more of our work here.