Thoughtful Investor® Approach
Learn more about our Thoughtful Investor® approach in this short video
Established in 1999, Cerillion provides Business Support Systems (BSS) and Operational Support Systems (OSS) software, mainly to the telecommunications industry. From the outset, management pursued a strategy of building a fully integrated platform on a common technology stack, rather than assembling products through acquisitions or third-party integrations.
This remains a competitive differentiator, enabling faster implementation, lower deployment risk and lower total cost of ownership for customers.
Cerillion’s software supports processes such as billing, charging, customer relationship management (CRM) and network operations for fixed-line, mobile, broadband and multi-service communications providers. Headquartered in London, Cerillion is a global business with dozens of customer installations worldwide.
It has development centres in India and Bulgaria, as well as sales operations across North America, Asia-Pacific and Europe. Cerillion generates revenue from software licences, SaaS subscriptions, professional services and ongoing support and maintenance.
Learn more about our Thoughtful Investor® approach in this short video
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Learn why we're known as the Thoughtful Investor® with Castlefield founder John Eckersley
Information is accurate as at 22.07.2026. Opinions constitute the fund manager’s judgement as of this date and are subject to change without warning. The officers, employees and agents of CIP may have positions in any securities mentioned herein. This material may not be distributed, published or reproduced in whole or in part. With investment, capital is at risk.
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