Trusted models for expert decisions.
Build, validate and scale complex models. In Excel.
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.
Embed your expertise in explainable and reliable models.
Best practice modeling techniques designed for professionals.
Structured by design
Organize complex logic into clear, readable models that are easy to review and maintain.
Confidence built in
Visual configuration and data quality checks catch issues early and prevent silent errors.
Reuse, don't rebuild
Reuse existing models by updating inputs easily. Merge tools ensure they will match.
Manage assumptions and build scenarios easily.
Built for scale
Run models on large datasets with performance beyond standard Excel.
Your most productive modeling
High-performance user interface and engine allow you to focus on content.
+50%
Modeling productivity
25-1000x
Less risk of error
17x
Faster than Excel
The user interface focuses on automating configuration while keeping you in control.
In Excel, every formula introduces risk. River gets rid of formulas and dramatically reduces parameters.
Measured with a VLOOKUP on 100k rows. River is 43x faster on 500k rows and 140x on 1 million rows.
How to start using River?
River is fully contained 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 River Pro today, for free.
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!
Supported by
Fondation Genevoise pour l'Innovation Technologique
River has been awarded Innovation Initiation Support by FONGIT