Samuel Harrison
Managing Partner @ Faction
San Francisco, United States
Samuel Harrison is a Series A investor at Faction in San Francisco focused on Blockchain and Cryptocurrency. Samuel Harrison is Co-founder and Managing Partner of Faction. He's an advisor to Lightspeed on crypto and a Co-founder and Venture Partner at Blockchain.com Ventures. Previously led Naspers Ventures early stage investments.
- Total investments:
- 36
- Last investment:
- Lead investor:
- 36%
Last updated:
For AI agents: llms.txt
Industries Samuel Harrison invests in
Stages Samuel Harrison invests in
Countries Samuel Harrison invests in
Investment Focus
Industry
- Blockchain 15 (42%)
- Cryptocurrency 13 (36%)
- FinTech 7 (19%)
- Financial Services 6 (17%)
- Ethereum 5 (14%)
Stage
- Series A 12 (33%)
- Seed 10 (28%)
- Series B 5 (14%)
- Funding Round 3 (8%)
- Venture - Series Unknown 2 (6%)
Country
- United States 12 (33%)
- United Kingdom 3 (8%)
- Cayman Islands 2 (6%)
- Israel 1 (3%)
- Germany 1 (3%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Turnkey
|
Turnkey is an encryption service provider that offers secure APIs to manage private keys. | $12.5M / Venture - Series Unknown / May 14, 2026 | |
|
Turnkey
|
Turnkey is an encryption service provider that offers secure APIs to manage private keys. | $30M / Series B / Jun 09, 2025 | |
Lens Protocol
|
Lens Protocol is a composable and decentralized social network serving the Web3 community. It enables creators to build their own web3 social media platforms and accounts, giving them control over their connections with their communities and also ownership over their content. | $31M / Venture - Series Unknown / Dec 18, 2024 | |
|
Turnkey
|
Turnkey is an encryption service provider that offers secure APIs to manage private keys. | $15M / Series A / Apr 23, 2024 | |
|
Turnkey
|
Turnkey is an encryption service provider that offers secure APIs to manage private keys. | $15M / Series A / Apr 23, 2024 | |
Taiko Labs
|
Taiko Labs is a cryptocurrency firm that develops an Ethereum Virtual Machine (zkEVM) scaling solutions platform for Ethereum Blockchain. The platform supports all EVM opcodes in a decentralized, permissionless, and secure layer-2 architecture to allow Ethereum developers to run blockchain projects. | $15M / Series A / Mar 02, 2024 | |
Tres
|
Tres is a financial technology company that provides a platform for managing, accounting, and reporting on digital assets and Web3 financial operations. Its core offering aggregates transactional data across blockchains, exchanges, custodians, and financial systems into a unified financial data environment to support automation of reconciliation,audits, tax compliance, and reporting workflows. The platform enables finance teams, asset managers, and institutions to transform raw on-chain activity into structured, audit-ready financial information with real-time insights and integration into traditional accounting systems. Tres’s tools address challenges such as multi-network data fragmentation and complex digital asset transactions by normalizing and enriching data for consistent financial workflows. The company’s solutions support compliance-focused operations and enable organizations to monitor treasury activity, generate regulatory documentation, and automate ledger entries. | $11M / Series A / Dec 20, 2023 | |
Puffer
|
Puffer Finance operates as a blockchain infrastructure company. | $5.5M / Seed / Aug 08, 2023 | |
Helio
|
Helio powers merchant payments for the Web3 economy. We offer a secure and convenient way for merchants, dApps & creators to accept DeFi payments across multiple chains for e-commerce, subscriptions, paywalling & more. Benefits include low fees & instant settlement for merchants, and increased privacy & friction-free checkouts forusers. | $3.3M / Seed / Apr 13, 2023 | |
Fordefi
|
Fordefi is a technology company that specializes in providing decentralized finance (DeFi) solutions and services. The platform aims to empower users by offering innovative financial products and tools that leverage blockchain technology, enabling secure and transparent transactions.Fordefi focuses on creating an accessible ecosystem for users toengage in various financial activities, such as lending, borrowing, and trading cryptocurrencies. The platform is designed to provide users with greater control over their financial assets, eliminating the need for traditional intermediaries.In addition to its core DeFi offerings, Fordefi emphasizes user education and community engagement, helping users understand the benefits and risks associated with decentralized finance. By fostering a supportive environment, the company aims to promote the adoption of DeFi solutions. | $18M / Seed / Nov 08, 2022 | |
| See all 36 investments → | |||
Co-Investors
About Faction
Lightspeed Faction is a joint venture with Lightspeed Venture Partners, and as a result, combines Faction's crypto-only approach with Lightspeed's deep Silicon Valley roots and platform business scaling resources. Faction collaborates with Lightspeed on blockchain-related matters, but operates the fund independently.
Faction Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Clara Boh
Deal Partner
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Banafsheh Fathieh
General Partner
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Justin Barlow
Venture Partner
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Raymond Feng
Technical Partner
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Samuel Harrison
Managing Partner
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FAQ
What does Samuel Harrison invest in?
Samuel Harrison invests primarily in Blockchain, Cryptocurrency and FinTech startups, most often at Series A and Seed stage. Most of the 36 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
When did Samuel Harrison last invest?
The most recent investment recorded for Samuel Harrison closed in May 2026. Shizune tracks 36 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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