Jil Sovereign
“Can a pre-settlement cryptographic proof layer — positioned as neutral infrastructure between payers, providers, and regulators — become the compliance-first settlement standard for institutional finance and healthcare payment integrity?”
Founded in 2024 by Jeff Mendonca, JIL Sovereign set out to build the pre-settlement attestation and post-settlement proof layer for institutional payments, positioning itself as the 'DTCC for tokenized assets.' Rather than moving money, JIL operates a verdict engine that scores, seals, and cryptographically anchors payment integrity evidence before funds disburse. The company expanded into healthcare payment integrity in 2026 with Horizon Aegis, targeting Medicare Advantage RADV audit exposure — an unusual vertical for a blockchain-native settlement infrastructure company. As of mid-2026 the company is pre-Series A, running a live pre-mainnet network with paying institutional pilots.