Neos Networks
Driving billing accuracy, operational efficiency and user autonomy with Cerillion
Neos Networks is one of the UK's leading business telecoms providers, delivering high-performance connectivity solutions including SD-WAN, Ethernet, Optical and Dark Fibre services through its UK-wide 34,000km network.
Serving wholesale, enterprise and public sector customers, Neos Networks combines deep technical expertise with a focus on innovation to support the UK’s digital infrastructure.
The Challenges
Building a scalable digital foundation
Following its separation from SSE Group and new investment from Infracapital, Neos Networks needed to transform its BSS landscape to support rapid growth.
The organisation consolidated multiple legacy systems onto a single, unified Cerillion platform capable of managing complex B2B and wholesale relationships while enabling automation across the customer lifecycle.
Evolving for scale and control
As the business grows and matures, the focus is on ongoing optimisation – enhancing operational control, scalability and efficiency. Key BSS/OSS priorities include:
- Further strengthening billing accuracy and financial control
- Simplifying product and charging configuration
- Extending operational efficiency and automation
- Enabling standards-based integration and interoperability
- Empowering business users with greater autonomy and configurability
The Solution
Cerillion provides Neos Networks with a fully integrated, end-to-end BSS platform, deployed as a private cloud SaaS solution.
The platform supports end-to-end customer lifecycle management, product catalogue, CRM, billing and financial management, as well as open standards-based integration.
The Upgrade Programme
To support the next phase of growth, Neos Networks undertook a major Cerillion upgrade, going live in January 2026.
The upgrade focused on:
- Enhancing billing and charging capabilities
- Extending automation and simplifying configuration
- Improving usability and strengthening API-driven integration
Post go-live, the platform has continued to perform reliably at scale, providing a strong foundation for continued optimisation. Neos Networks has also achieved real-world certification of nine TM Forum Open APIs.
The Results
Improved billing accuracy and financial control
- Enhanced controls support consistently high billing accuracy
- Corrective invoicing simplifies financial adjustments
- Reduced need for post-billing adjustments and credit notes
- More effective deposit handling supports accurate financial recognition
Greater product and charging flexibility
- Charging models aligned to customer preferences (monthly, quarterly, annual)
- Streamlined configuration improves consistency and maintainability
- Clear separation of charging and billing logic enhances control
Increased operational efficiency
- Automatic generation of contracts (CRFs) removes manual handoffs
- Standardised document management reduces rework
- Centralised document storage improves accessibility and governance
Enhanced user autonomy
- Configurable UI enables tailored workflows
- Business users can configure work orders, job steps and operational workflows, including key processes such as collection plans, without specialist support
- Thin-client architecture broadens access to configuration tools across teams
- Integrated third-party components and improved configuration control enable more structured and scalable change management
Standards-based integration
- TM Forum Open APIs and integration with third-party systems such as ServiceNow and Salesforce enable seamless connectivity and surface external data directly within Cerillion workflows
- Faster onboarding of new partners and services
- Reduced integration complexity
A Platform for Continuous Innovation
Cerillion continues to support Neos Networks beyond the initial transformation, enabling ongoing optimisation and innovation through a scalable, standards-based platform that supports billing control, product agility, integration and automation.
Overview
Neos Networks
Countries UK
Industries Communications
Website neosnetworks.com
Cerillion Products CRM Plus Revenue Manager Enterprise Product Catalogue Service Manager Business Insights
Certified Cerillion APIs TMF621 – Trouble Ticket Management TMF622 – Product Ordering Management TMF629 – Customer Management TMF637 – Product Inventory Management TMF663 – Shopping Cart TMF670 – Payment Method Management TMF676 – Payment Management TMF683 – Party Interaction Management TMF699 – Sales Management