EXECUTIVE PROFILE

I have owned the consequences of decisions, not just advised on them.

I work with technology founders, investors and leadership teams when a commercial or operating decision is too expensive to leave to assumptions. The judgement behind Green Bear comes from building ventures, scaling platforms and leading large product organisations where decisions had real budget, team and market consequences.

Jörn Green

350+

People led in a full games organisation.

52 → 64

Titles per year without increasing budget.

40 → 240

Ubisoft Connect organisation scaled across a global platform.

60M+

Users served by platform work.

Where the judgement comes from

Sony

Built and validated a B2B IoT venture by turning existing corporate technology into a commercial platform path.

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Ubisoft

Scaled Ubisoft Connect from around 40 to 240 people while supporting a platform serving more than 60 million users.

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Play’n GO

Ran a 350-person games organisation and increased output from 52 to 64 titles per year without increasing budget.

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Judgement domains

  • Commercial uncertainty
  • Customer and proposition evidence
  • Investor readiness and milestone logic
  • Operating scale
  • Product and platform strategy
  • Cross-functional execution

How this translates to Green Bear

I now apply that operating judgement to funded B2B technology companies facing decisions that are too expensive to leave to assumptions.

The work is deliberately practical: define the decision, expose the assumptions, assess the evidence, choose the next commitment and install the operating rhythm required to carry it into execution.

This is why Green Bear engagements produce artifacts such as Decision Briefs, Evidence Assessments, Portfolio Risk Maps and Commitment Plans rather than only advisory conversations.

NEW BOOK · 2026

Reasonable to Be Wrong

How Organisations Decide Before the Evidence Is Complete makes the discipline behind this work explicit: distinguish evidence from confidence, act proportionately to what is known, and make uncertainty visible enough to manage.

Read about the book →

Bring the decision, not a polished brief.

A Fit Call determines whether the right next step is a review, sprint, embedded engagement or no engagement.