Faction Research
Investment Thesis
Faction (operating as Lightspeed Faction, a joint venture with Lightspeed Venture Partners) is an early-stage blockchain venture fund founded by Samuel Harrison and Banafsheh Fathieh. The firm's stated thesis is that crypto will be "seismically big" over the next few decades, and it backs entrepreneurs building real, useful infrastructure and applications rather than purely speculative or financialized products. Faction is explicitly vertical-agnostic within crypto: it invests across the full stack, from layer-zero protocols to consumer applications, and across sectors spanning DeFi, NFTs, real-world-asset (RWA) tokenization, and stablecoins. The firm positions itself as a long-term, hands-on partner willing to "roll up its sleeves," while still giving founders latitude to run their companies their own way.
Sector Focus
Faction invests exclusively in crypto and blockchain-native companies. Recurring themes across its portfolio include DeFi and on-chain finance (Kamino Finance, Ammalgam, Init Capital), stablecoins and RWA tokenization (Glacis Labs, Meld, Strata), MEV/infrastructure (Flashbots, Space and Time, Nexus), L1/L2 blockchains (Monad, Taiko, zkSync, Puffer Finance), payments and fintech rails (Coinflow, PhotonPay, OpenFX, Helio), crypto x AI infrastructure (Nous Research, Hyperbolic, GAIB, Narya AI), and consumer/social crypto apps (Bloom, Crossmint). The firm also backs market infrastructure and liquidity players such as Wintermute.
Stage Focus
Faction focuses on Seed and Series A rounds, positioning itself as an early institutional partner. Public deal data (Pitchbook) confirms a preferred check size of $5M-$10M, consistent with the firm's own description of investing "at the Seed and Series A."
Check Size
Typical investment range is $5M-$10M per Pitchbook fund data, though the firm has participated in smaller rounds as part of syndicates (e.g., an $8M seed co-led with Hack VC in Pharos, and smaller pre-seed/seed checks such as $1.6M in Bloom and $6.8M in Glacis Labs).
Lead Tendency
Faction frequently leads or co-leads its rounds. Public announcements describe Faction as having "led" the Bloom pre-seed round and the Glacis Labs seed round, and having "co-led" the Pharos seed round alongside Hack VC.
Recent Activity
Faction launched its $285M inaugural fund (Lightspeed Faction) in November 2023, with an institutional approach leveraging Lightspeed's global platform. A Fund II vehicle (Lightspeed Faction Fund II) has since been raised per third-party fund trackers. Recent disclosed investments include: an $8M seed round co-led in Pharos (November 2024) alongside Hack VC; a $1.6M pre-seed round led in Bloom, a social on-chain finance app (July 2025); and a $6.8M seed round led in Glacis Labs, developer of the ZeroDelta multichain clearing platform for digital assets, alongside Franklin Templeton and Coinbase Ventures (July 2026), which included a non-voting board observer seat for Faction.
Portfolio Highlights
Faction's portfolio spans roughly 45+ companies visible on its public site, including Flashbots, Monad, zkSync (Matter Labs), Taiko, Puffer Finance, Ethena, Space and Time, XMTP, Crossmint, Wintermute, Kamino Finance, Nous Research, MagicBlock, Turnkey, WeatherXM, and Pharos. The firm's public materials also reference earlier investments in Lens and Matter Labs from its first fund vintage.
Team
- Samuel Harrison — Managing Partner (co-founder; also Senior Advisor to Lightspeed on crypto; prior Venture Partner, Blockchain.com Ventures)
- Banafsheh Fathieh — General Partner (co-founder)
- Jaleesa Banwait — Chief of Staff
- Will Leas — Deal Partner
- Clara Boh — Deal Partner
- Tim Khoury — Deal Partner
- Raymond Feng — Technical Partner
Decision Process
Faction operates as a partnership with a Managing Partner and General Partner alongside a bench of Deal Partners and a Technical Partner, suggesting a partnership-style decision process rather than a solo-GP structure, consistent with its scale ($285M+ inaugural fund plus a Fund II vehicle).
Founder Preferences
Faction's own language describes wanting to back "rebels and dreamers — daring builders that swing hard at the world's biggest problems," and "BUIDLers who are working on something fundamentally useful in blockchain and who are passionately pushing the industry forward." The firm favors technical, crypto-native founding teams over purely speculative or financialized projects.
Geographic Focus
Faction is headquartered in Menlo Park, CA, and describes its investment focus as global/vertical-agnostic rather than geographically restricted, consistent with its portfolio spanning US, European, and international crypto infrastructure projects.
Affiliation Note
Faction Ventures, LLC and Lightspeed Management Company, L.L.C. are legally separate businesses. Faction is a registered investment adviser under the U.S. Investment Advisers Act of 1940. Lightspeed holds certain interests in Faction and the funds it manages, but does not advise Faction's clients, and Faction does not advise Lightspeed's clients.