Work / Portfolio

Investment activity

Conviction before consensus, across private and public markets.

Investment activity

Conviction before consensus

Private and public markets, directly and through SPVs, venture funds and funds of funds. Concentrated in AI and frontier technology.

Few positions, chosen where timing, valuation, market structure and company quality allow an exceptional outcome.

That approach has produced early exposure to the companies alongside, and others helping define the AI economy.

Private marketsPublic marketsDirect investmentSPVsVenture fundsFunds of funds
How I invest

Different structures, one discipline

The structure depends on access, stage and information. The standards don’t change.

AccessAlignmentValuationConcentrationGovernanceLiquidity
Roger B. Jantio shaking hands at a meeting, Republic of Madagascar
Meeting, Republic of Madagascar
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AI and frontier technology

From foundational capability to applied value

Exposure across every layer where AI creates value.

Early positions in Anthropic, OpenAI, Replit, Airtrek Robotics, Vast Data and Crusoe gave participation in foundational AI. The next opportunity: products customers pay for repeatedly — in healthcare, enterprise, finance, trade, sports and data.

What changes with stage

Geography shapes access and follow-on capital, but never excuses weak fundamentals. Early is not the same as right.

Foundational AIInfrastructureDataDeveloper toolsApplied AIFrontier technology
Beyond AI

Investing where durable value can be built

Artificial intelligence is a principal concentration, not the boundary of my investment activity.

Select opportunities in financial services, healthcare, agriculture and the bioeconomy, consumer markets, infrastructure and real assets.

The same discipline applies: real demand, capable leadership, defensible economics, appropriate valuation, and a credible path to scale.

Financial servicesHealthcareAgricultureBioeconomyConsumer marketsInfrastructureReal assets
Roger B. Jantio seated in conversation at a meeting, Republic of Madagascar
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Investment doctrine

Conviction without suspension of disbelief

Built across market cycles, including dot-com lessons that did not come cheaply.

The full framework stays proprietary. Its purpose is simple: repeatable decisions, and conviction kept separate from enthusiasm.

Commercial valueValuation disciplineAsymmetric upsidePortfolio constructionNo FOMO
Investment enquiries

Specificity makes the first conversation useful

Well-defined opportunities from founders, fund managers, SPV sponsors and co-investors are welcome. Say what it is, and why it fits.

Founders and companies

  • What the company does and the problem it solves
  • Who the customer is and what evidence of demand exists
  • Current stage, traction and geographic market
  • Capital being raised, proposed terms and intended use of proceeds
  • Existing investors and the relevant decision timeline
  • A link to the company’s website and presentation

Funds and SPVs

  • Investment strategy, stage, sector and geography
  • Manager or sponsor background
  • Fund size or transaction allocation
  • Portfolio-construction and ownership objectives
  • Fees, carried interest and principal terms
  • Track record or relevant prior investments
  • Closing schedule and remaining allocation

Co-investment opportunities

  • The company or asset and the transaction sponsor
  • Round or financing structure and valuation
  • Available diligence and proposed allocation
  • Decision deadline

Please do not submit trade secrets, sensitive personal information or other confidential material at the initial-enquiry stage. Submission of an opportunity does not create a confidential, advisory or fiduciary relationship.

This page is intended solely for the submission of opportunities for consideration. Nothing on this website constitutes an offer to sell, or a solicitation of an offer to purchase, any security or interest in any investment fund.

Submit an investment opportunity investments@sterlingus.com

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