Operator.
Investor.
Builder.
AI/ML for Capital Markets at SpaceXSI. Former President & Managing Partner, Plocamium Holdings. Private equity advisory and value engineering for founder-led companies.
The work
James Tannahill works at the intersection of complex systems: biological, financial, digital, operational. His work is building companies that hold up under pressure: a downturn, a diligence process, a regulator's review.
He operates across healthcare, industrials, technology, and finance. His background spans biochemistry, biotechnology, equity research, strategic finance, and private equity operations.
He is based in New York and holds an MBA from Cornell's Johnson Graduate School of Management. He works on AI/ML for Capital Markets at SpaceXSI. He was President & Managing Partner of Plocamium Holdings, founded 1ness Strategies, and has advised RDLB. He builds AI-native software. As Head of Field Operations at ProSecPR, a veteran-led security advisory firm, he brings the discipline of America's defense and national-security community to protecting people and strategic interests across Latin America.
Competencies
Capital & Financial Architecture
- Strategic finance
- Capital deployment
- Investment structuring
- M&A advisory
Applied Intelligence
- AI systems architecture
- ML pipelines
- Intelligent automation
- Data infrastructure
AI in Regulated Markets
- Capital markets
- Healthcare and life sciences
- Model governance
- Compliant deployment
Operational Engineering
- Post-transaction integration
- Organizational architecture
- Operational transformation
Leadership & Decision Design
- Board and executive advisory
- Operating cadence
- Incentive design
Perspectives
Which risk do you feel is most mispriced by the market at the moment?
AI integration risk in healthcare. The market is pricing in massive upside from AI adoption across health systems, but severely underpricing the regulatory, liability, and workflow-disruption costs of getting there. Most health systems are 18-36 months from meaningful AI integration, and the compliance surface area (HIPAA, state privacy laws, payer audit exposure) is enormous. I think the winners won't be the foundation model companies but the middleware layer that makes AI deployable within existing compliance frameworks. That's where I'm focused.
What's something you spend a meaningful amount of time on that's not in your job description?
Building things. I still write code most days: infrastructure, ML pipelines, full-stack applications. It keeps me honest about what's actually possible with the technology we're investing around, and it's the fastest way I've found to evaluate technical founders. When someone pitches an "AI-powered" platform, I can usually tell within ten minutes whether the architecture is real or a wrapper around an API call.
Active systems
11
Active platforms
4
Regulated sectors
10+
Years operating
3rd
Generation family firm
Operating partnerships
James works with RDLB on brand architecture and with 1nessAgency on growth for regulated industries, and brings both into the platforms above.
Ventures and platforms
Operator-led private equity platform deploying patient capital across industrial technologies and healthcare. Converts operational complexity into strategic leverage and compounding free cash flow. Third-generation family enterprise engineered for continuity, control, and multi-decade value creation.
U.S. military-level security services for institutions and corporations. Risk intelligence, protective operations, security technology, and crisis planning across Latin America and the Caribbean. Clarity before commitment. Readiness before crisis.
Strategic brand architecture for investors and operators. Engineers positioning, narrative systems, and go-to-market structure, converting trust into momentum and intention into capital movement.
Digital marketing and growth systems engineered on ethics, data, and design. Builds compliant advertising architecture that converts signal into measurable scale across regulated industries.
Urban intelligence platform mapping the future state of cities through data. Deploys sensor networks, environmental analytics, and real-time monitoring systems: visual intelligence that helps decision-makers understand and reshape the urban fabric.
A sailors' hospitality network. Yacht club members extend reciprocal guest privileges to one another: club access, moorings, day sails, and local hosting, carried on a digital letter of introduction.
A signal radar for the iPhone. Every Bluetooth device around you appears as a bubble in augmented reality, named against the complete industry registries, ranged, and flagged when it should not be there. NFC tags, WiFi, and HomeKit accessories are read the same way, and nothing leaves the phone.
People, apps, and AI agents all need a way to reach you. HMU API gives them structured channels that self-organize, so you stop managing inbound and start making decisions. It lives at HitMyAPI.com.
Video conferencing where privacy is architecture, not a checkbox. Zero AI processing, zero recordings, zero metadata. Encryption keys never leave the browser. Trust as guarantee, not corporate promise.
Automated out-of-office engine for Google Voice built on schedule-aware intelligence. Converts missed texts into instant, contextual responses, so you stay present while staying reachable.
Real weather run through machine learning models trained on traditional painting. Live atmospheric data and satellite colour become original works, in the hand of a different artist each day.
RDLB brand equity capsule
A short film from RDLB, the strategic brand architecture studio James advises.