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Blockchain development for Web3, DeFi & RWA

Protofire is one of the earliest blockchain engineering firms, building and operating production Web3 systems since 2016. We maintain Solhint, an open-source Solidity linter and security tool used by over a million developers, and we build within the Chainlink, Safe, The Graph, and Blockscout ecosystems.

We are a full-stack blockchain engineering partner. Our teams design, ship, and operate:

  • Min project size
    $1,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    50 - 249
  • Locations
    Sunnyvale, CA
  • Year founded
    Founded 2016
  • Languages

8 Languages that we service

  • English
  • Spanish
  • Portuguese
  • Russian
  • Polish
  • French
  • Italian
  • Ukrainian

1 Locations

  • Sunnyvale , CA

Select Focus Area
Industries
Financial services
55%
Information technology
35%
Business services
10%
Clients
Midmarket ($10M - $1B)
45%
Small Business (<$10M)
30%
Enterprise (>$1B)
25%

Pricing Snapshot

Min. project size $1,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.9 /5

What Clients Have Said

Protofire offers good value for cost, with clients noting competitive pricing and a strong cultural fit. Projects typically involve 2-10 team members, focusing on smart contracts and integrations, demonstrating effective project management and ongoing partnerships.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 1 review
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Protofire Review Insights

Overall Review Rating

4.9
  • Quality 5.0
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Effective Project Management and Communication

    Clients commend Protofire for their professional project management and clear, responsive communication. They effectively translate product goals into development work, facilitating efficient collaboration and timely deliveries.

  • Successful Product Integration and Development

    Protofire has successfully delivered projects like the Strategy Hub and integrated tools such as the Dowsers Static Analyzer API into Solhint. These initiatives have expanded client capabilities and improved product offerings.

  • Proactive and Innovative Problem Solving

    Clients appreciate Protofire's proactive approach to problem-solving, where they not only execute tasks but also challenge and improve ideas, contributing to innovative solutions in product development.

  • Lack of Identified Improvement Areas

    Clients have not identified significant areas for improvement, indicating high satisfaction with Protofire's services and suggesting a consistent delivery of quality and performance.

  • Cultural and Value Alignment with Clients

    Protofire is often chosen for its cultural fit and alignment with client values. This alignment, coupled with competitive pricing, makes them a preferred partner for businesses seeking long-term collaboration.

Protofire Reviews

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Strategy Hub Design & Development for DeFi Platform Company

  • Blockchain Custom Software Development UX/UI Design
  • Decentralized Finance Smart Contract Development Web3
  • Confidential
  • Apr. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out most was their ability to handle both the smart contract and frontend sides of the project."

Aug 19, 2026
Head of Ecosystem, Quickswap
Darren Gray
Verified
  • Financial services
  • Panama
  • 1-10 Employees
  • Online Review
  • Verified

Protofire has designed and developed a Strategy Hub for a DeFi platform company. The team has built smart contracts and the frontend, and connected them to allow interaction with the platform's strategies.

API Integration Services for AI Verification Company

  • Blockchain Blockchain Marketing Custom Software Development
  • Confidential
  • July 2026 - Ongoing
4.5
Quality
5.0
Schedule
4.5
Cost
4.5
Willing to Refer
5.0

"Their project management has been very professional."

Aug 4, 2026
CEO & Co-Founder, Dowsers
Patrick Azzopardi
Verified
  • Financial services
  • Paris, France
  • 11-50 Employees
  • Online Review
  • Verified

Protofire has integrated a static analyzer API into Solhint for an AI verification company. This task has enabled developers to automatically verify the security of their smart contracts.

Custom Software Development for IT Company

  • Blockchain Custom Software Development DevOps Managed Services
  • Smart Contract Development Web3
  • $10,000 to $49,999
  • Oct. 2025 - Feb. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We were impressed with Protofire's communication."

Jul 27, 2026
Chief Marketing Officer, Pharos Network
Michelle Kang
  • Information technology
  • Hong Kong
  • 51-200 Employees
  • Online Review

Protofire handled smart contract engineering and web3 infrastructure support for an information technology company. They deployed Safe multisig infrastructure on the client's testnet and provided documentation.

Showing 1-4 of 4 Reviews

Our Story

We started Protofire in 2016 because serious blockchain teams needed engineers who would build real systems and stay to run them. We have kept that up through every market cycle since. We maintain Solhint, the open-source Solidity linter used by over a million developers, and we build and operate infrastructure across the Chainlink, Safe, and The Graph ecosystems. When chains, protocols, and finance teams need on-chain products that last, they come to us

What Sets Us Apart

Safe Guardians

Protofire has been a partner of the Safe team since 2017, contributed directly to its core codebase, and hold official Safe Guardian and Safe Wallet Partner status, which gives us quick PR-review access and close technical collaboration with the Safe core team.

Solhint

Our credentials include maintaining Solhint, the open-source Solidity linter used by 1M+ developers, and running a top-3 indexer in The Graph ecosystem.

Smart Contract Development

Protofire is a smart contract development company that has deployed 250+ projects since 2016, across Ethereum and 120+ EVM networks, Solana, and Cardano. We've built and maintained production contracts alongside Chainlink, MakerDAO, The Graph, Safe, Aave, and the Ethereum Foundation.

Locations (1)

830 Stewart Dr., Suite 119 SunnyvaleCA, United States 94085

16 - 20

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