Andreas Leed – Data Science, Project Analytics & Author

Data Science & Advisory

Leading a multidisciplinary team developing decision tools and evidence-based solutions for some of the world's most complex projects.

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Author & Researcher

Co-author of a Wiley bestseller and published researcher on project forecasting, AI, and environmental economics.

The Book

Speaker & Educator

International keynote speaker and educator on data-driven project management, AI, and sustainability at leading conferences worldwide.

Speaking

#1 Bestseller – Project Management Software #2 Bestseller – Project Management (Audiobook)

How to Measure Anything in Project Management

Douglas W. Hubbard, Alexander Budzier & Andreas Leed

A practical guide that replaces guesswork with rigorous measurement. Drawing on the world's largest project performance database, it offers practical tools to forecast outcomes, reduce risk and improve decisions.

Discover the book

Project Risk Lab

Interactive tools for evidence-based project decisions. Test your calibration, run Monte Carlo simulations, explore reference class forecasting and more.

Calibration Quiz

How well-calibrated are your probability estimates? Most people are overconfident. Find out where you stand.

Monte Carlo Simulator

Build a cost or schedule model and run thousands of simulations to see the full range of possible outcomes.

Parade of Trades

A game that shows how variability in individual tasks cascades into project-level delays.

Explore all 12 tools

Trusted by Leading Organisations

US Department of Energy UK Department for Transport HM Treasury Hong Kong Development Bureau The World Bank Infrastructure Australia NZ Infrastructure Commission European Court of Auditors CERN McKinsey & Co Boston Consulting Group KPMG UK Atomic Energy Authority NCC Arup Swedish Debt Office National Grid Implement Consulting Group UK Nuclear Decommissioning Authority National Infrastructure & Service Transformation Authority

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What People Say

Andreas has a natural talent for teaching and a gift for explaining complex concepts in a way that is accessible and engaging. His lectures are always well-researched, insightful and thought-provoking.

Head of Leadership & Competence DevelopmentNCC

As a trusted advisor, Andreas simplifies advanced statistical analysis for diverse stakeholders — from risk experts to senior leadership — enabling informed and rational decisions on Britain's biggest infrastructure projects.

UK Head of Risk Management & Technical DirectorWSP

Andreas is an outstanding communicator with deep intellectual curiosity. He transforms research into practice, builds high-performing teams and delivers transformative impact — including evidence that shaped UK legislation on low-carbon energy.

Fellow, Said Business SchoolUniversity of Oxford

Andreas effectively uses data to develop and communicate insights. His technical skills, global experience and ability to synthesise complex information make his advice compelling, credible and thoughtful.

Director of EconomicsNew Zealand Infrastructure Commission

Andreas's work on optimism bias and reference class forecasting has been highly influential. He moves effortlessly from explaining complex analysis in simple terms to performing cutting-edge statistical work — a rare combination of skills.

Head of Economic Research & EngagementUK Department for Transport

In developing Hong Kong's AI-based Project Surveillance System, Andreas integrated vast data volumes into precise, actionable insights. Today the system monitors over 200 capital projects, optimising resources and exemplifying his analytical and creative vision.

Principal Assistant SecretaryHong Kong Development Bureau

Let's Work Together

Interested in collaborating, booking a talk or learning more? I'd love to hear from you.

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Better decisions for ambitious projects