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River Solutions
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    • Energy policy modeling
    • Turn a River model into a website
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River Solutions
      • Product
        • Overview
        • How does it work?
        • Pricing
      • Case examples
        • Energy policy modeling
        • Turn a River model into a website
        • Corporate transformation and valuation
      • Resources
        • Blog
        • Privacy policy
      • Contact us
    • Book a demo
    • Download

    Turn your Excel model into a reusable team asset

    The engine that makes models easy to understand, update and share

    Excel Add-In • Visual logic • Automated checks • Publish as a web app

    Start Now Contact us


    With Excel only

    The model built in Excel only, with long formulas copied across many cells
    ×

    Hidden logic. Rules that are easy to say in words become 6-line formulas that are hard to validate.

    ×

    Copy-paste risk. Formulas are copied across many cells, so one mistake spreads quietly.

    ×

    Hard to check. Intermediate results are buried inside long formulas, so you can't see them.

    With River for Excel

    The same model in River, with a visual model map next to the Excel data
    ✓

    Visible logic. The map shows how inputs flow to outputs.

    ✓

    Safe operations. Each step does one thing, with built-in checks.

    ✓

    Still Excel. Everything stays in the workbook, and any intermediate result is one click away.

    Click a screenshot to enlarge it. Use the arrow keys to switch between the two.

    GROW THE KNOWLEDGE IN YOUR TEAM

    Models that are easy to understand and to hand over

    A trusted model clearly exposes its logic, inputs and outputs, assumptions, transformations and parameters. River structures this knowledge and saves it in the model, without formulas. 

    Easy handovers between modelers keep the knowledge in your team. Experts, clients and managers can review and validate the model smoothly. 

    • Explore the structure of the model with the visual model map on the left. Zoom out to see the big picture, browse comments, transformations and data connections.
    • Visualize parameters of transformations in the configurator  window on the right to understand how they work. All visual, no need to decipher formulas.
    • Explore data at any point intuitively in Excel Tables to confirm the results match your expectations. Filter, sort, color, cross-check.
    • Model documentation is automaticlally created from the model. No need to repeat it.  Export as a document or PDF.

    How does it work?

    SCALE THE IMPACT OF YOUR MODELS

    Update models efficiently and with confidence

    Refreshing input data, changing assumptions and editing scenarios are typical of a model's lifecycle, often done right before (or during) critical meetings. 

    River is designed to make all these changes efficiently while keeping confidence in the results. Even modeling logic changes can be done reliably at short notice.

    • Update inputs and assumptions without ambiguity: click each yellow and pink block and update the Excel Tables that show automatically. 
    • Update scenarios in one click. The scenario manager lets you add or update scenarios in one click, without having to touch a formula.
    • Detect issues in new data before they affect results. Built-in quality checks automatically run, showing red warning signs e.g. if a value is missing where it shouldn't.
    • Change logic without rebuilding the model. The model map lets you swap built-in operators or reroute data with confidence. The error detectors will let you know if something is off.

    How does it work?

    RADIATE EXPERTISE BEYOND THE SPREADSHEET

    Share your model, keep control of the logic

    Most Excel models end up as a static report. The logic you spent months building stays locked in cells, only its author can really read it, and most people only ever see a chart of the result.

    River turns that logic into something you can reuse, share and build on.

    • Widen your audience. One click publishes your model as a web app for your colleagues, clients or the public.
    • Control what they can change. Decide whether viewers only explore your scenarios or build their own by adjusting assumptions and inputs. The model's logic stays exactly as you built it, so results are never hallucinated.
    • Unlock the knowledge in your model. Every assumption, driver and relationship is explicit. Export the model as Markdown and AI tools can write complete, reliable documentation from it.
    • Make it code native. Extract the model's logic and data as SQL code and CSV files, and plug them into your own data pipelines, applications and tools.


    How does it work?

    Get started with River

    Install the trial version and test it for 14 days or let us walk you through a demo.

     Book a demo  Download

    How to start using River?

    River is fully contain​ed in an Excel Add-In, making installation easy

    1

    Get a free licence

    No credit card needed.

    2

    Install the Excel Add-In

    Download the installer and follow the instructions.

    3

    Start modeling

    Open Excel and start building models right there! Our in-tool tutorials will help you get started.

    4

    Share your models

    Simply share your models as any Excel workbook, by email or in a shared folder.

    Try the River Add-In today.

    Try for free


      No credit card needed

      Quick installation

      Embedded tutorials

    Free trial
    person holding pencil near laptop computer

    Designed by former McKinsey consultants

    Based on decades of observing the same problems, we've built River to help business analysts, modeling experts and consultants have a more satisfying modeling experience and elevate the quality level in the profession.

    McKinsey article on modeling in the Covid-19 context

    Frequently asked questions


    Of course! It is strongly encouraged. River models are saved inside the Excel workbook together with the data it uses, making sharing very easy.

    You currently need a license to be able to view the model in a workbook, but we're designing a "viewer" version that will allow people without a license to open the model in read-only mode.

    If you just want to keep the model for reference, no need to do anything. When your current River license expires, you will always be able to open the Excel workbook and see the input and output data of your model. With the "viewer" version of River, you will also be able to see all the modeling logic and its parameters.

    If you want to recreate your model using plain Excel (or another tool), you can use it as a guide during your rebuild.

    We come from the consulting industry, where protection of client data is a top priority. 

    Therefore we designed River so that it runs entirely on your computer, and no data from your workbook is ever leaving.

    The only data that River can send is application usage data, to help us build the product. And you can decline this option.

    River has been carefully designed to have the smallest possible footprint. 

    It is packaged in a single Excel Add-In, doesn't send data outside your computer and can be deployed using corporate IT tools. 

    If you already use think-cell (another popular Add-In), chances are your IT will easily approve it. Otherwise feel free to contact us at info@river-solutions.com.

    We have an extensive in-application documentation and tutorials. 

    We currently provide support via email directly. 

    Want to know more? Get in touch!


    Contact us

    Supported by 
    Fondation Genevoise pour l'Innovation Technologique

    River has been awarded Innovation Initiation Support by FONGIT


    Designed for consultants by consultants

    We are a team of passionate people whose goal is to help business analysts build trusted analytical models, allowing them to reduce risks and costs, and to provide a rewarding experience for the professionals building them.

    River Solutions

    Chemin du Pré-Monnard 27
    CH-1213 Petit-Lancy
    Switzerland

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    • info@river-solut​ions.com​
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