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The Full Story

What we’ve learned after two decades building companies across the US and Canada.

Origins

In 2003, we made our first bet — outside our domain, high risk, no playbook.

But the upside wasn’t just real. It was worth every ounce of uncertainty. We saw it early, leaned in, and did the work to earn it.

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Since then, we’ve stayed in the hard-tech sectors — industries with no shortcuts, no clear maps, and no guaranteed outcomes. The risk stayed high. So did the upside. We kept going.

 

​Thesis

We go in early, before a market trend exists — and stay long after the hype collapses.

That’s when the distractions clear, capital gets serious, and the compounding loop begins.

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Method

We build deliberately, control capital, learn while operating, and only scale what proves itself. Timing matters. So does restraint.

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We take time where it counts — at the foundation. That’s where shortcuts break everything.

Once it holds, we move fast. We act fast. We execute hard.​​

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Philosophy

We admit mistakes while we build through them.

We don’t obsess over perfection — we work until things hold.

We follow a clear vision — until we discover a better one.

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​Why We Exist

We turn early-stage volatility into long-term advantage — not just through capital, but through systems, people, and patterns.​

We’re here to build things that last.​

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The Timeline

2003–2010

Early Execution

  • Established RNG Technologies in North America, focusing on IT and industrial electronics

  • Initial capital allocation into applied software and polymer processing

  • Developed operational pattern for high-friction verticals

2011–2016

Portfolio Diversification

  • Expanded holdings in software, hardware, and initial investments in biotech

  • Realized early-stage returns, including from investments in Bit Lit Media and Blue Bat Games, both acquired

  • Initiated cross-sector capital recycling model

2017–2021

 Consolidation

  • Formed Runoff Capital Management as internal investment platform

  • Developed proprietary risk architecture for venture selection

  • Refined thesis around neglected verticals with industrial constraints

2022–Present

 Infrastructure & Climate

  • Launched Delta9 Vectors (climate tech + COâ‚‚ mineralization)

  • Transitioned into hard-tech venture studio model

  • Established Radziwill Capital Group as the formal platform unifying two decades of venture-building

The Engine
The People who make everything spinning:

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Yuri Runoff

Managing Partner & Chief Strategy Officer. 

A strategic lead since the firm’s inception in 2003, he oversees direction, structure, and portfolio development.

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Iryna Scherbinskaya

Chief Operating Officer, Portfolio Companies

Oversees day-to-day operations and executive management with responsibility for C-level functions within selected portfolio companies.

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Jason Trainor

Legal Advisor​

Supports entity structuring, operational compliance, and strategic transactions across the firm’s ventures.

Natalie Runoff

Financial Advisor (CPA)

Offers strategic input on audit, corporate finance, accounting, and tax matters across the firm’s holdings.

Michael Brown

Engineering Lead, Industrial Systems

Contributes systems integration and technical design expertise across hardware-intensive ventures, focusing on machinery and deployment.

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