Best Smart Contracts Companies in California, United States
The 58 best Smart Contracts companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Mysten Labs.
Ranked: Best Smart Contracts companies in California
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mysten Labs 🦄 Blockchain platform offering Web3 infrastructure solutions | $336M | 46 mo ago | Series B | 140 | Kostas Chalkias Co-Founder & Chief Cryptographer | SentryApple iCloud MailGoogle Workspace+17 | 6 patents Patents concentrated in computing, sensing & instrumentation | — |
| 2 | InfStones Decentralized infrastructure network for finance | $156M | 49 mo ago | Series C | 40 | — | Node.jsAnimate.cssAnt Design+11 | — | 2 job openings |
| 3 | Lightning Labs Blockchain-based sidechain network | $82M | 51 mo ago | Series B | 30 | Olaoluwa Osuntokun Co-Founder & CTO | Google CloudReactGatsby+14 | 19 patents Detecting malicious online ad behavior, data leakage, and consent violations in digital advertising. | — |
| 4 | Space and Time Provider of a data blockchain securing onchain finance and data | $50M | 22 mo ago | Series A | 49 | Nate Holiday CEO & Co-founder | WebflowApple iCloud MailGoogle Workspace+17 | — | — |
| 5 | Movement Labs Provider of technology and experimental methods to build power for marginalized communities | $41M | 26 mo ago | Series A | — | — | ContentfulNode.jsTailwind CSS+14 | — | — |
| 6 | Chainlink Labs Open-source blockchain oracle solutions | $32M | 106 mo ago | Funding Raised | 415 | — | WebflowGSAPLenis+15 | — | — |
| 7 | Mezo Bitcoin-native chain platform | $30M | 23 mo ago | Series A | — | Mike Travalini Co-Founder & CEO | SentryNode.jsTypeScript+21 | 4 patents AI-powered chatbot systems for automated maintenance diagnosis and troubleshooting | 1 launch |
| 8 | Vite Provider of layer 1 blockchain network | $28M | 101 mo ago | Funding Raised | 21 | — | Proton MailNode.jsVarnish+8 | — | — |
| 9 | ZetaChain Blockchain-based public network for omnichain interoperability | $27M | 29 mo ago | Series B | 32 | Richard Brown Co-Founder | ContentfulApple iCloud MailGoogle Workspace+23 | — | 3 launchs |
| 10 | Egretia HTML5 Blockchain engine and platform | $24M | 97 mo ago | Funding Raised | — | Peter Huang Co-Founder | — | — | — |
| 11 | CUBE3 Provider of real-time fraud prevention solutions for financial systems and platforms 69AI top 20%Funding top 24%Tech top 33%Growth top 35% All 8 signals ▾AItop 20% Fundingtop 24% Techtop 33% Growthtop 35% Talenttop 38% Marketbottom 36% Globalbottom 36% Newsbottom 27% AI: Classified as an AI company Funding: Raised $22.5M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) rank vs industry peers · Fliar Intelligence Index 69/100 | $22M | 6 mo ago | Series A | 25 | Attila Marosi-Bauer Founder and Chief Research Officer | WebflowAmazon Web ServicesGSAP+21 | — | 1 award |
| 12 | Gear Blockchain-based smart contract platform for developing dApps | $12M | 54 mo ago | Series B | 50 | — | Node.jsRadix UITailwind CSS+11 | 8 patents Advanced solar PV combiner box design enhancing safety, monitoring, and fault isolation | — |
| 13 | Clique Blockchain network that organizes various off-chain compute resources | $8M | 28 mo ago | Series A | — | Kevin Yu Co-Founder & CEO | TurbopackNode.jsRadix UI+16 | — | — |
| 14 | Octane Security Vulnerability management solution | $7M | 15 mo ago | Seed | — | Giovanni Vignone Founder & CEO | WebflowGSAPMicrosoft Clarity+19 | — | — |
| 15 | OAK Network Cross chain network for payments and DeFi | $6M | 53 mo ago | Seed | 20 | Chris Li Founder | — | — | — |
| 16 | Crowd Machine Blockchain development platform | $4M | 101 mo ago | Series A | 18 | Craig Sproule Founder & CEO | WordPressMySQLPHP+10 | — | — |
| 17 | Firewall Firewall software for PC protection | $4M | 28 mo ago | Seed | — | Sam Mitchell Co-Founder | WebflowjQueryHSTS+4 | — | — |
| 18 | BlockCypher Cloud-optimized full blockchain nodes | $4M | 137 mo ago | Seed | 2 | — | QuillLeafletMapbox.js+18 | — | — |
| 19 | FuzzLand Smart contract automated analysis platform | $3M | 29 mo ago | Acquired | — | Jeff Liu Co-Founder & CEO | Node.jsRadix UITailwind CSS+15 | — | — |
| 20 | Supra Blockchain-based smart contract management platform | $3M | 32 mo ago | Funding Raised | — | Victor Ermolaev Co-Founder | Node.jsMathJaxMUI+23 | — | — |
| 21 | Cookbook Open-source smart contract registry platform | $2M | 38 mo ago | Seed | — | Tyler Sehr Co-Founder & CEO | — | — | — |
| 22 | cookbook Cookbook specializes in simplifying the cost for companies in building developers web3. | $2M | 38 mo ago | Seed | 6 | — | SentryNode.jsRadix UI+16 | — | — |
| 23 | XY Labs Platform offering self-sovereign data gathering, storage, and processing solutions | $1M | 90 mo ago | Series B | 20 | Arie Trouw Founder & CEO | Facebook LoginMUIReact Router+11 | — | — |
| 24 | Bling Financial Mobile game developer specializing in blockchain based casual games | $1M | 60 mo ago | Seed | 13 | — | WebflowApple iCloud MailMicrosoft 365+18 | — | — |
| 25 | Incentivai Tools for testing mechanism design of smart contract ecosystem | $150K | 96 mo ago | Seed | — | Piotr Grudzien Co-Founder & CEO | — | — | — |
| 26 | Zoltar Online platform for testing and deploying smart contracts | $125K | 48 mo ago | Seed | 2 | James Chen Co-Founder | — | — | — |
| 27 | Quantstamp Smart contract security solutions and services | $120K | 88 mo ago | Seed | 12 | Steven Stewart Co-Founder & CTO | WebflowThree.jsReact+27 | 2 patents Verification and performance assurance of blockchain digital assets and smart contracts | — |
| 28 | Hypernet Provider of blockchain development services | $100K | 49 mo ago | Deadpooled | 15 | — | — | 15 patents Cross-language code containerization and decentralized consensus-driven AI/ blockchain services | — |
Top 12 Smart Contracts companies in California
#1
Series A · Palo Alto, California · founded 2022 · 25 employees$22.5Mraised▾
Provider of real-time fraud prevention solutions for financial systems and platforms. The company offers tools to identify on-chain threats and provide risk scoring. It delivers transaction security, empowering applications to block exploits and risky transactions. The company provides alerts, reports, and automation to respond to cyber risks. It offers integration, documentation, and an API for developers.
- Dec 2025Series A$5.2M
- Jun 2024Series A$14.3M
- Aug 2023Seed$8.2M
- 2023Seed$250K
#2
Series A · Los Angeles, California · founded 2022 · 49 employees$50Mraised▾
Provider of a data blockchain securing onchain finance and data. It offers tools for indexing blockchain data and securing offchain data. The platform enables verifiable queries and supports smart contract development. It delivers data to applications without custom pipelines.
- Aug 2024Series A$20M
- Sep 2022Series A$20M
- Jul 2022Seed$10M
#3
Seed · San Francisco, California · founded 2022$7Mraised▾
Vulnerability management solution. It is developer-first platform providing offensive security for web3 with AI-powered stress testing for smart contracts, helping teams deploy code faster and more confidently on security.
- Apr 2025Seed$6.8M
- 2023Seed$250K
#4
Series A · Menlo Park, California · founded 2022$30Mraised▾
Bitcoin-native chain platform. It is a bitcoin economic layer that uses a neutral smart contract infrastructure to offer various applications. It allows users to get bitcoin into Ethereum’s decentralized-finance (DeFi) ecosystem.
- Jul 2024Series A$7.5M
- Apr 2024Series A$21M
#5
Series A · San Francisco, California · founded 2023$41.4Mraised▾
Operator of the modular framework platform intended to build and deploy move-based blockchains, and applications. The company's platform offers a composable and horizontally scalable network, and provides unparalleled smart contract security and asset portability, enabling users to solve the cold start problem with unprecedented interoperability.
#6
Series B · Palo Alto, California · founded 2021 · 140 employees$336Mraised▾
Blockchain platform offering Web3 infrastructure solutions. Its product portfolio includes an open-source wallet packed with features to help developers access, learn, and transact on the Sui network, Sui Explorer for digging into metrics, searching for transactions, Sui name service to register identity, and more. It also offers digital collectibles called SuiFrens.
- Sep 2022Series B$300M
- Dec 2021Series A$36M
#7
Series C · Palo Alto, California · founded 2018 · 40 employees$155.5Mraised▾
Decentralized infrastructure network for finance. It allows users to build DApps, access on-chain data, run validator nodes, and more to access PoS staking benefits & rewards. Features API gateway to access data analytics, Blockchain IDE, node manager, and blockchain watch for automated scaling & discovery.
- Jun 2022Series C$66M
- Feb 2022Series B$37.5M
- Nov 2021Series B$33M
- Aug 2021Series A$10M
#8
Series B · San Francisco, California · founded 2016 · 32 employees$27Mraised▾
Blockchain-based public network for omnichain interoperability. It enables users to develop apps that transcend multiple chains and layers. It also supports a truly fluid, multi-chain crypto ecosystem, where users and developers can use and appreciate the benefits of any blockchain.
- Jan 2024ICO$60K
- Aug 2023Series B$27M
#9
Series B · San Francisco, California · founded 2016 · 30 employees$82.5Mraised▾
Blockchain-based sidechain network. It provides superior reliability, interoperability, and security for global-scale financial applications. It enables users to transfer Bitcoin and Litecoin without settling those transactions on the blockchain.
- Apr 2022Series B$70M
- Feb 2020Series A$10M
- Mar 2018Seed$2.5M
#10
Series A · San Francisco, California · founded 2022$8Mraised▾
Blockchain network that organizes various off-chain compute resources. It allocates the resources as needed by both general applications and smart contracts. This includes co-processors for performing verifiable computing on on-chain data, oracles for bringing in data from the internet data source, and specialized hardware for privacy, AI, and secure computation. It allows applications to access different computing resources and data, with the ability to adjust for preferences around privacy and cost.
- Mar 2024Series A$8M
#11
Seed · San Francisco, California · founded 2023$3.7Mraised▾
Firewall software for PC protection. The Ethereum virtual machine is equipped with an optimized algorithm designed to block smart contract exploits in real time. The feature includes granular blocking paths that effectively prevent exploits while still allowing users to access their funds securely.
- Mar 2024Seed$3.7M
#12
Acquired · Palo Alto, California · founded 2022$3Mraised▾
Smart contract automated analysis platform. It offers a platform that help blockchain projects find vulnerabilities and manage smart contracts. It also offers solutions for leveraging static analysis, fuzzing, and formal verification for smart contracts.
- Feb 2024Seed$3M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Smart Contracts coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Blockchain in California is moving
A read on the academic research around Blockchain in California — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 211 papers.
UC Berkeley, USC, and UC Davis lead California's blockchain research, dominated by security and IoT applications, with an optimistic tone (mean stance 0.52, breakthroughs nearly doubling concerns).
- University of California, Berkeley29
- University of Southern California26
- University of California, Davis23
- University of California, Irvine22
- University of California, Los Angeles16
- Computer security1→25
- Database transaction1→14
- Distributed computing1→8
- Cloud computing1→5
- Proof of concept1→3
- Database transaction1→6
- Supply chain1→5
- Computer security1→16
- Cryptocurrency1→3
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.