GE Smallworld
6/10GE Vernova's Smallworld is a geospatial network management (GIS) platform that electric, gas, water and telecom utilities use to model, plan and maintain their physical networks.
Data last updated November 2026 · Our methodology
Overview
Smallworld, now sold by GE Vernova as Geospatial Network Management (GNM), is a GIS built for utilities and telecom operators. It holds a connected network model of electric, gas, water or telecom assets and shows it both on maps and as schematics. Its Version Managed Datastore lets many users edit long-running design versions at once and merge them back into the master without losing data. Most of the platform is written in Magik, GE's object-oriented language, and has run on the Java Virtual Machine since 2015, so customers can write deep customizations in Magik and Java. Industry applications include Electric Office, Gas Distribution Office, Global Transmission Office, Water Office and Physical Network Inventory for telecom. Cross-industry tools cover spatial analysis, a geospatial server, mobile field updates, FME-based data integration, and a Business Integrator that links to ERP and asset systems such as SAP and IBM Maximo. GNM also feeds network data to GE Vernova's GridOS and ADMS software for fault location, isolation and restoration, simulation and planning. It can run on AWS, Azure or Google Cloud, and lighter browser-based interfaces now serve non-expert users. GE Vernova does not publish prices. Buying is enterprise licensing through sales, and reviewers describe license and maintenance costs as very high. The main drawbacks are cost, a dated desktop interface, a steep Magik learning curve and awkward data export. That makes it a fit mainly for large network operators, not general GIS users.
Our Rating
Who GE Smallworld is best for
Good fit
It is built for electric, gas, water and telecom network modelling, and reviewers call it best in class for utility asset management.
It provides the network model behind GE Vernova's GridOS and ADMS applications for grid operators.
Enterprise licensing, multi-user versioned editing and ERP integration suit large organizations.
Less suited
Reviewers cite high license and maintenance costs and a narrow focus on utilities.
Pros & Cons
Pros
- Purpose-built connected network model for utilities, with industry-specific applications such as Electric Office and Gas Distribution Office.
- Its Version Managed Datastore supports concurrent long-running edits and merges them without data loss.
- It is highly customizable through Magik and Java on the JVM.
- It integrates with GE Vernova GridOS and ADMS, and with SAP and IBM Maximo through Business Integrator.
- It can run on AWS, Azure or Google Cloud and offers browser-based role interfaces.
Cons
- Reviewers describe license and maintenance costs as very high, and there is no public pricing.
- Reviewers say the desktop interface looks dated and is not friendly.
- Exporting data is awkward and often needs a conversion tool such as FME.
- Its value-added tools focus narrowly on utility networks, and one reviewer found its general mapping and spatial queries limited.
Key Features
GE Smallworld Pricing
Enterprise license
- Pricing on request from GE Vernova
- Industry applications for electric, gas, water and telecom
Frequently Asked Questions
Yes. GE Vernova now markets Smallworld GIS as part of its Geospatial Network Management portfolio.
Yes. GE Vernova says GNM runs on AWS, Google Cloud and Azure, and many customers use it in production that way.
GE Vernova publishes no prices, so you need a quote from its sales team. Reviewers report high license and maintenance costs.
It integrates with GE Vernova GridOS and ADMS, with ERP and asset systems such as SAP and IBM Maximo through Business Integrator, and with other systems through FME-based data integration.
Yes. GE Vernova offers a Network Update application and Mobile Enterprise tools for updating the network model from the field. Offline capability is not documented.
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