OpenWorm

What OpenWorm does

OpenWorm is an open-source research project dedicated to building the first comprehensive computational model of the nematode Caenorhabditis elegans, the only multi-cellular organism with a completely mapped connectome (302 neurons and approximately 1,000 cells total). The project combines a physics-based body simulation engine (Sibernetic, implemented in C++/OpenCL and using the PCISPH smoothed particle hydrodynamics algorithm), biophysical neuron models built on Hodgkin-Huxley equations, a multiscale neuronal network generator (c302), a complete NeuroML-format connectome, a web-based interactive 3D visualization and simulation platform (Geppetto), and a Python data access layer (OWMeta) — all unified through a Docker simulation stack and distributed as MIT-licensed code on GitHub. Sub-projects extend the platform into ion-channel modeling (ChannelWorm), muscle cell biophysics, behavioral validation against the WormBehavior database, developmental biology (DevoWorm), and a physical robot embodiment of the C. elegans neuromuscular system.

The organization operates as an entirely volunteer-driven initiative with no paid staff, led by Executive Director Stephen Larson, Project Director Padraig Gleeson, and a Board of Directors chaired by Heidi Huettner, supported by a Scientific Advisory Panel. OpenWorm does not sell software or commercial products; all outputs are freely available, and operations are funded through voluntary donations processed via OpenCollective and tax-deductible contributions channeled through the non-profit Neurolinx Research Institute. Its primary "customers" are the global community of C. elegans biologists, computational neuroscientists, and software developers who consume the open-source tools, contribute to GitHub repositories, and collaborate on validation work; secondary communities include open-science advocates and the broader public reached through conference talks, TEDx presentations, and media coverage in outlets such as The Economist, The Atlantic, BBC, and Scientific American. The project's go-to-market is community-led: contributors are recruited through GitHub, Slack channels, Google Groups mailing lists, regular journal clubs, conference presentations, and academic collaborations with institutions including Salk Institute, UMass Medical School, Cambridge, Princeton, Leeds University, and CalTech/WormBase.

Name

OpenWorm

Legal name

OpenWorm Foundation

Website

https://openworm.org

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

OpenWorm is an open-source, volunteer-driven research project building the first comprehensive computational model of the C. elegans nematode, combining physics-based body simulation, biophysical neuron models, and 3D visualization tools distributed as free MIT-licensed software on GitHub.

Ownership category

akta.pro rank

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Revenue model

1. Donations and Crowdfunding: OpenWorm is entirely funded through voluntary donations. The project accepts contributions through OpenCollective for recurring donations and through the Non-Profit Neurolinx Research Institute for tax-deductible donations. No goods or services are provided in exchange for contributions.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels9 records

Core offering

OpenWorm develops and maintains open-source computational simulation software that models the C. elegans nematode worm from first principles, including its body mechanics, nervous system, and behavior. Its portfolio comprises Sibernetic (physics-based body simulation), Geppetto (web-based multi-algorithm simulation platform), c302 (multiscale neuronal modeling framework), the OpenWorm Browser (3D anatomical explorer), WormSim, DevoWorm, and supporting tools distributed free of charge via GitHub.

Product overview

OpenWorm is an open-source project dedicated to creating the world's first virtual organism—a comprehensive computational model of the C. elegans nematode worm. The project operates as a collaborative, volunteer-driven initiative with no traditional product or commercial offering. Its portfolio consists of multiple interconnected software tools and sub-projects that work together: Geppetto serves as the core simulation platform with WebGL visualization; Sibernetic handles the physics-based body and fluid simulation using SPH algorithms; c302 provides the multiscale neuronal modeling framework; the OpenWorm Browser enables 3D anatomical exploration; DevoWorm studies developmental processes; and NeuroML Connectome maintains the complete neural wiring diagram. These components are unified through a Docker simulation stack and OWMeta data access layer. Supporting projects include ChannelWorm for ion channel modeling, the Muscle Model for cellular-level simulation, Movement Analysis for behavioral validation, and the C. elegans Robot for physical implementation. The ecosystem is backed by comprehensive documentation and supported primarily through community donations and volunteer contributions.

Differentiator

Problem solved

Functional benefit

Brands

• Sibernetic: C++/OpenCL implementation of PCI SPH algorithm for simulating C. elegans locomotion and body mechanics.
• Geppetto
• DevoWorm
• WormSim
• OpenWorm Browser

Products and services

• OpenWorm Browser Interactive 3D browser that lets users zoom, rotate, and peel back layers of a C. elegans worm to examine neurons, muscles, organs, and cuticle without installation. Built from Virtual Worm Blender files. Target users: researchers, educators, and curious public.
• Sibernetic C++/OpenCL implementation of the Predictive-Corrective Incompressible Smoothed Particle Hydrodynamics (PCISPH) algorithm that simulates C. elegans body, muscles, soft tissues, and surrounding fluid in parallelized fashion on CPUs and GPUs.
• WormSim Interactive browser-based simulation that lets users play with worm behavior without programming knowledge. Originally developed with Kickstarter funding.
• Geppetto Open-source modular Java/HTML5 platform for multi-scale, multi-algorithm interactive simulation of biological systems, with built-in WebGL visualizer for in-browser 3D visualization of models.
• c302 Multiscale modeling framework that generates different instances of C. elegans neuronal networks with varying levels of anatomical and physiological detail, from integrate-and-fire to detailed biophysical models.
• DevoWorm Interdisciplinary project that explores developmental processes in Nematodes and other life forms through data analysis, visualization, and simulation.
• OWMeta Python API providing a unified data access layer for C. elegans anatomical and experimental data consolidated from multiple public archives.
• Docker Simulation Stack Unified Docker container that integrates Sibernetic, Geppetto, c302, and other OpenWorm simulation components for reproducible deployment of the digital worm stack.

Quantifiable outcome

• First complete computational model of C. elegans nervous system and body
• +2 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• Dr. Sreekanth Chalasani (Salk Institute)minorStrategic or Co-development PartnerC. elegans researcher providing data and expertise to the OpenWorm project for modeling validation and biological accuracy.
• Dr. Michael Francis (UMass Medical School)minorStrategic or Co-development PartnerC. elegans biologist contributing data and scientific guidance to the OpenWorm project.
• Dr. William Schafer (University of Cambridge)minorStrategic or Co-development PartnerC. elegans researcher providing experimental data and validation support for the OpenWorm project.
• Dr. Andrew Leifer (Princeton University)minorStrategic or Co-development PartnerResearcher providing calcium imaging data and neuroscience expertise to support OpenWorm modeling efforts.
• Dr. Netta Cohen (Leeds University)minorStrategic or Co-development PartnerComputational neuroscience collaborator providing expertise on worm simulations and modeling approaches.
• Dr. Christian Grove / Virtual Worm Project (CalTech/WormBase)coreStrategic or Co-development PartnerProvider of 3D Blender anatomical models of C. elegans body used as the foundation for OpenWorm Browser and anatomical visualizations.
• Open Source BraincoreTechnology or IntegrationPlatform for visualizing and simulating computational neuroscience models. OpenWorm's NeuroML C. elegans connectome model is available through OSB Explorer for 3D exploration and simulation.
• ChannelWorm ProjectminorStrategic or Co-development PartnerPipeline project to convert ion channel data from scientific papers into ion channel models for C. elegans. Integrates with OpenWorm's muscle and neuron modeling efforts.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Blue Brain Project (EPFL): EPFL's Blue Brain Project builds digital reconstructions of brain circuitry using detailed simulation — the most ambitious comparable effort to OpenWorm at the whole-organism level, though targeting mouse/human cortex rather than C. elegans. Both pursue simulation-based reconstruction of neural tissue.
• WormBase: The central C. elegans database maintained by a consortium including CalTech, and a key upstream data source for OpenWorm (Christian Grove's Virtual Worm project feeds WormBase). Most direct peer in C. elegans biology informatics.
• Open Source Brain: Initiative for sharing and simulating standardized neuronal models using NeuroML. Already a core integration partner for OpenWorm (its connectome is accessible via OSB Explorer). Direct peer in computational neuroscience tooling.
• NEURON Simulator (Yale): Long-established simulation environment for biophysical neuron and network models — interoperable with OpenWorm's NeuroML models and a foundational tool in computational neuroscience. Direct peer in neural simulation infrastructure.

Broad incumbents

• Allen Institute for Brain Science: Major nonprofit brain mapping initiative producing large-scale atlases, connectomics datasets, and neuron characterization. Operates at a much larger scale and budget than OpenWorm, with similar open-science ethos and overlapping neuroscience audience.
• Human Cell Atlas: International consortium building comprehensive cellular maps of the human body — comparable large-scale open-science biology mapping effort at a much higher funding tier. Overlapping open-data philosophy and academic audience.
• MathWorks (MATLAB/Simulink): Dominant commercial scientific computing platform widely used in computational neuroscience and systems biology. Serves the same research community as OpenWorm's tools, though as a proprietary incumbent rather than open-source specialist.

Emerging players

• Recursion Pharmaceuticals: AI-driven drug discovery company using high-throughput biology and machine learning. Targets the same end-application (computational drug discovery) via a different approach (industrial-scale experimentation + AI rather than whole-organism simulation).
• Emulate Bio: Organ-on-chip technology company building in-vitro biological models for drug testing. Competes conceptually with whole-organism simulation as an alternative to animal testing, with stronger near-term commercial traction.
• Brian2 Simulator: Open-source spiking neural network simulator widely used in academic neuroscience. Comparable tool-category peer to Geppetto/Sibernetic for neuron-level simulation, with an active developer community.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/openworm
• GitHubgithub.com/openworm
• YouTubeyoutube.com/user/OpenWorm
• Facebookfacebook.com/openworm
• LinkedInlinkedin.com/company/openworm

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about OpenWorm