UK markets are not known for their tech stocks but Cerillion (CER) continues to stand out, here’s why. The £415 million international telco billing software designer recently saw its share price spike after unveiling its largest ever contract.
| Cerillion (CER) | Price: £14.14 | Market cap: £415m |
The deal, worth Oman Telecommunications, or Omantel, will see Cerillion supply and install its cloud-native BSS/OSS suite (Business Support Systems and Operations Support Systems). Cerillion will provide ongoing support, maintenance, hosting, and managed services after securing its largest ever contract.
£42.5 million deal
Crucially, the technology will support Omantel’s mobile, fixed-line, and broadband services. The contract is worth £42.5 million over five years, correspondingly, is believed to be around 3-times the size of its biggest previous agreement.
This marks an impressive milestone as Cerillion’s international telco billing software continues to gain industry traction, something the market has clearly noted with the share price spike.
‘Omantel is transforming itself into a regional technology powerhouse and expanding Oman’s digital infrastructure with advanced innovation initiatives’, said Cerillion CEO Louis Hall.
Consequently, Cerillion stock jumped 13% on the news and has continued rising, hitting to £14.14. As the international telco billing software designer declared its largest ever contract, the resulting share price spike was noteworthy.

What is striking here, beyond the scale of the contract, is that Cerillion appears to have beaten several much larger telco software vendors to the punch. Omantel, Oman’s first and leading integrated telco, selected Cerillion after an extensive tender process.
Cerillion’s solution is loaded with GenAI, helping is offer seamless upgrades and operational flexibility. Making it easy for customers to bring new products to market with minimal effort, Cerillion also brings lower total cost of ownership compared to more bespoke solutions.
Preliminary work on the transformation project has already begun. Importantly, the contract helps underpin existing market forecasts for Cerillion’s 2026 fiscal year and beyond. This underscores the remarkable achievement of its largest ever contract.
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