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Six PhDs. Science and technology leaders who all do the work.

Answers for decisions under uncertainty

Ensemble Intelligence brings together climate and environmental expertise with geographic and socioeconomic data to understand what matters to your decision. You work directly with the scientists doing the analysis, from framing the question through interpreting the evidence.

  • Climate
  • Water
  • Agriculture
  • Energy
  • AI/ML
  • Financial Risk
  • Operational Forecasting

Is water availability critical to your operations?

Understand the likelihood of scarcity events, how conditions vary across locations, and how that risk may change over time.

Satellite view of Sau Reservoir in March 2023, the valley holding a broad body of water.
March 2023≈65% of capacity
The same view of Sau Reservoir in March 2024, the water reduced to a narrow channel with pale exposed lakebed on either side.
March 2024≈1% of capacity
Sau Reservoir, Catalonia, one year apart. Landsat 9 and Landsat 8. NASA Earth Observatory images by Wanmei Liang, using Landsat data from the U.S. Geological Survey.

What Ensemble delivers

From your question to a complete decision framework

Six core services. Most projects are one of them; some combine two. Each is scoped to your question and your decision, not to a standard package.

Where Ensemble sits

Rigorous enough to defend. Focused enough to use.

Broadly available risk scores are generic. Enterprise platforms are powerful but costly to adopt and use. Both start from a predefined structure. Ensemble starts from your business question, scientist-led from problem framing to decision support.

  • Tailored to your question

    Analysis, data, and methods are chosen around the problem you need to solve, not a predefined product. End to end, from strategy to the tooling your team runs.

  • Scientists, end to end

    Work directly with the scientists doing the analysis, from problem framing through decision support. We build you state-of-the-art science and systems, then train your team and hand them off.

  • Less cost. Less overhead. Less setup.

    Get rigorous analysis without the expense, implementation time, and internal resources required by an enterprise platform or an institutional consultancy.

How an engagement runs

A focused path from question to decision

Four stages. The first one is the reason the rest stay small.

  1. 01

    Frame the decision

    What is being decided, by whom, and what a wrong answer costs.

  2. 02

    Design the analysis

    The datasets, methods, scenarios, and uncertainty treatment the question warrants.

  3. 03

    Produce and interrogate the results

    Produce the analysis, then attack it: sensitivity tests, stated limitations, review with your decision makers and internal experts.

  4. 04

    Apply and hand over

    Turn results into reporting language and operational changes. We train your team on anything we built and stay available.

Illustrative deliverable

Outputs designed for the people who need to use them

One example of the form our deliverables take.

Illustrative Ensemble analysis

Findings condensed to one decision-ready slide. Synthetic data.

The founding partners

The people who developed the science work directly with you

Six scientists and technical leaders who met at ClimateAi, with well over a hundred years on these problems between them. All six still do the work and can explain it to any room.

  • Diego Alfaro, founding partner at Ensemble.

    Diego Alfaro, PhD

    Founding Partner

    • Former Director of Product, ClimateAi
    • Former researcher and professor, UNAM · PhD, Stony Brook University
    • Founder, Climathics · former derivatives trader, BBVA

    Diego is an atmospheric scientist and product leader specializing in weather-risk indices, crop-yield forecasting, and financial risk, with first-hand markets experience as a former derivatives trader and structurer at BBVA.

    Full profile for Diego Alfaro
  • David Farnham, founding partner at Ensemble.

    David (Dave) Farnham, PhD

    Founding Partner

    • Former VP of AI and Engineering, ClimateAi
    • Former research scientist, Carnegie Science and Stanford
    • PhD, Columbia University

    David is an applied scientist and technology leader specializing in climate risk, AI/ML, probabilistic forecasting, and water and energy systems. He makes technical findings land with any audience, from engineering teams to boards.

    Full profile for David (Dave) Farnham
  • Isaac Gerg, founding partner at Ensemble.

    Isaac Gerg, PhD

    Founding Partner

    • Former Applied AI Scientist, ClimateAi
    • Two decades of applied machine learning for the Navy, DARPA, ONR, and NATO
    • PhD in electrical engineering, Penn State

    Isaac is a scientist who builds weather intelligence that operators can actually use, after two decades applying machine learning to hard physical sensing problems for the Navy, DARPA, ONR, and NATO.

    Full profile for Isaac Gerg
  • Laura Herrera, founding partner at Ensemble.

    Laura Herrera, PhD

    Founding Partner

    • Former Staff Data Scientist, ClimateAi
    • Former Lead, Air Quality and Boundary-Layer Meteorology, SIATA
    • PhD, Universidad Nacional de Colombia

    Laura is an atmospheric scientist and data scientist specializing in boundary-layer meteorology, turbulence, and air quality. She combines research with building commercial climate-risk products, designing monitoring networks, and communicating environmental risk to communities and decision-makers.

    Full profile for Laura Herrera
  • Carlos Hoyos, founding partner at Ensemble.

    Carlos Hoyos, PhD

    Founding Partner

    • Former Senior Staff Data Scientist, ClimateAi
    • Former Director and Chief Scientist, SIATA
    • Former seasonal-outlook lead for Colombian hydropower · PhD, Georgia Institute of Technology

    Carlos is an atmospheric scientist applying climate science and machine learning to energy, agriculture, insurance, and public safety. He combines research and product development with public-sector leadership, communication with decision-makers, and education.

    Full profile for Carlos Hoyos
  • Arik Tashie, founding partner at Ensemble.

    Arik Tashie, PhD

    Founding Partner

    • Former Senior Staff Data Scientist, ClimateAi
    • Advised Fortune 500 companies on water risk across five continents
    • PhD in hydrology, UNC Chapel Hill

    Arik is a hydrologist and data scientist specializing in groundwater, drought, low flows, reservoirs, flooding, remote sensing, and scalable environmental modeling.

    Full profile for Arik Tashie
Read the full profiles

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You do not need a fully specified project. Tell us what matters, and we will tell you honestly whether an engagement can help, and say so plainly if it cannot.

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