Tamarack Global
30 Beechcroft Road, Greenwich, CT, 06840, United States
Overview
Tamarack Global operates as an investment firm that invests in new markets and new economies. The frim specializes in the fields of finance, financial services, and hedge funds.
- Total investments
- 21
- Lead investments
- 2
- Investments · 12mo
- 6
- Active investors
- 1
Sector focus
- Finance
- Financial Services
- Hedge Funds
Investment portfolio
- Hark
Participated · Series A · May 2026
Hark is an ambitious AI startup developing what it calls the world's most advanced personal intelligence platform. The company is building a suite of custom native hardware devices paired with end-to-end speech, text, and vision models and deeply personalized memory systems. The goal is to create an AI that thinks like you — and sometimes ahead of you — to offload mental workload and handle tasks autonomously. Unlike general-purpose AI tools, Hark's systems are multimodal, built from scratch, and designed to interact with the world the way humans do: listening, speaking, seeing, remembering, and taking action. Currently in beta, Hark envisions bringing this kind of super-intelligence to everyone, freeing people to focus on meaningful work, creativity, and the people they care about.
- Rilian
Led · Seed · Apr 2026
Rilian develops Caspian, an AI-native agentic security orchestration platform that provides a single command layer to integrate, operate, and automate cyber and defense capabilities. Its pre-trained AI agents are designed to amplify analyst productivity, capture institutional knowledge, and operate in private/sovereign cloud, on-premise, air-gapped, and compliance-constrained environments. The company emphasizes rapid deployment timelines and sovereign-friendly architectures for governments, critical infrastructure operators, and commercial customers. Rilian was founded by Christian Schnedler, Nick Pompeo, and Dan Fischer and is based in McLean, Va. It has announced strategic partnerships with vendors such as SentinelOne, Censys, and SimSpace and in July 2025 signed a contract with the UAE Cybersecurity Council to implement Caspian at the UAE National Security Operations Center. The company positions itself to accelerate adoption of agentic AI across U.S. and allied defense and security programs.
- Blue Energy
Participated · Equity · Apr 2026
Blue Energy develops financeable, turnkey nuclear power plants built with offsite prefabrication and standardized delivery compatible with leading reactor technologies. The company plans to compress construction timelines to as little as 48 months and deliver plants designed to be project‑financeable. Blue Energy expects to begin construction on its first Texas project in Q3 2026, a plant designed to provide up to 1.5 GW of power. The U.S. Nuclear Regulatory Commission recently approved its phased construction approach that initially energizes turbines with natural gas before conversion to nuclear. Founded in 2023 and based in Chevy Chase, Md., Blue Energy is backed by VXI Capital, Engine Ventures, At One Ventures, and Tamarack Global and recently raised $380 million to fund long‑lead equipment procurement, project development, and corporate growth.
- Isembard
Participated · Series A · Mar 2026
Founded in 2024 by Alexander Fitzgerald, Isembard operates and franchises factories powered by its proprietary MasonOS platform, which unifies quoting, scheduling, supply-chain, manufacturing, quality control and delivery into a single intelligent operating layer. By automating these processes, the company aims to revive British manufacturing and provide rapid, high-quality component production for sectors including space, defence and robotics. Isembard plans to deploy dozens of software-enabled factories across the UK and expand into Germany, France and Ukraine. The firm targets the opening of 25 factories by the end of 2026 and is actively recruiting engineers across Europe and the United States to support this growth. Its franchise model allows external operators to leverage MasonOS while benefitting from Isembard’s centralized supply-chain and quality systems. Financially, the company closed a $9 million seed round less than a year ago and has now secured a substantial Series A to accelerate expansion. Although revenue figures were not disclosed, the fresh capital underscores strong investor confidence in Isembard’s industrial automation vision.
- Titan Dynamics
Participated · Seed · Jan 2026
Titan Dynamics builds integrated small Unmanned Aerial Systems that combine hardware platforms, mobile manufacturing units, and auto-generating mission software designed to adapt rapidly to defense requirements. The company’s product suite includes advanced sUAS airframes, portable ‘factories’ for in-field drone production, and software that automates the generation of UAS mission profiles. Titan Dynamics has been operating for more than two years on a bootstrapped basis, during which it fulfilled multiple military contracts that validated its technology in active defense environments. With fresh capital now secured, the team plans to scale engineering resources, accelerate air-system integration, and shorten the cycle from design to deployable capability. The firm positions itself to redefine how unmanned systems are built, fielded, and sustained for military customers. No revenue or user figures were disclosed, but the new funding marks the company’s first outside investment and sets the stage for broader market expansion.
Team
John McCormick
Founder
LinkedIn