Fulgur Ventures backs Lexe
7 May 2025

Fulgur Ventures
3 min read
Fulgur Ventures is backing Lexe, a self-custodial Bitcoin and Lightning wallet that runs each user's node inside Intel SGX hardware enclaves in the cloud, delivering always-on payments without ever taking custody of keys.
Fulgur Ventures is backing Lexe, the self-custodial Bitcoin and Lightning wallet rebuilding the trade-off between sovereignty and convenience. Founded in 2022 by Max Fang and Philip Hayes, Lexe runs each user's personal Lightning node inside Intel SGX hardware enclaves hosted in the cloud. The result is a wallet that is online 24/7, can receive payments while your phone is off and still never lets Lexe, or anyone else, touch your keys.
Lightning has always faced a brutal user-experience trilemma: self-custody, always-on liquidity, or simplicity, pick two. Custodial wallets solved it by quietly removing the first leg, which is precisely what Bitcoin was built to avoid. Lexe's use of trusted execution environments lets users keep full key control while their node behaves like a hosted service, closing one of the longest-running gaps in the Lightning stack.
This investment is squarely on-thesis for Fulgur. We believe consumer Bitcoin only goes mainstream when self-custody stops feeling like a chore and starts feeling like the default. Lexe is doing the deep systems work, enclave attestation, node lifecycle management, channel orchestration, that is needed to make sovereign payments invisible. The cryptographic guarantees are auditable; the user just sees a wallet that works.
As Lightning expands into payroll, remittances, AI agents and machine-to-machine flows, the demand for always-on, non-custodial nodes will explode. Lexe is one of the few teams treating that as a hardware-and-systems problem rather than a UX skin over a custodian. Max, Philip and the team have built something genuinely novel, and we could not be more excited to help them bring it to the world.