Fortitude Mining, LLC (now Fortitude Mining Holdings, Inc.) is a cryptocurrency mining company wholly owned by Digital Currency Group (DCG), the crypto conglomerate founded by Barry Silbert. It was spun out of DCG's Foundry self-mining division in January 2025; in August 2025 DCG contributed the membership interests of Fortitude Mining, LLC to a corporate holding entity. It remains private, with DCG expected to hold roughly 95% of the combined company after a pending all-stock reverse merger with Nasdaq-listed HeartSciences Inc. (HSCS), intended to trade as Fortitude Mining Group (TUDE). Reported revenue was about $89–90 million in 2025, with a $12.6 million net loss; Q2 2026 revenue was $20.9 million. CEO Jaime Leverton replaced founder Andrea Childs (now COO) in September 2026. A NAEMA member listing shows a Fairport, New York contact address; primary operations are elsewhere.
Operations. Fortitude describes itself as a vertically integrated Proof-of-Work mining platform, primarily mining Zcash (ZEC) alongside Bitcoin. It operates facilities across South Dakota, Nebraska, Texas, and New York (roughly six to seven sites, ~48–60+ MW, targeting 80 MW). It mined 72,696 ZEC in the first half of 2026 — about 28% of network output — and has ordered 9,000 additional Bitmain Z15 Pro machines. It also participates in third-party and Foundry-operated mining pools.
Litigation posture. Fortitude appears only as a defendant (0 plaintiff cases, 1 defendant case) — an operating company defending against a patent-assertion campaign. In Malikie Innovations Ltd. et al. v. Foundry Digital LLC et al. (W.D. Tex., Midland-Odessa Division, 7:25-cv-00567, filed Dec. 12, 2025), Fortitude is co-defendant with Foundry Digital, Riot Platforms, and Cipher Digital.
Context. Plaintiffs Malikie Innovations and Key Patent Innovations are patent assertion entities funded by Key Patent Innovations, which acquired roughly 32,000 former BlackBerry patents (including the Certicom elliptic-curve-cryptography portfolio) in 2023. The suits assert ECC digital-signature and hash-algorithm patents against Bitcoin mining operations; Unified Patents has characterized Malikie as an NPE. The case is venued in plaintiff-friendly West Texas, with venue-transfer and §101 motions pending.