Cellusys Ranked #1 Vendor for Steering of Roaming for the Third Consecutive Year in Kaleido Intelligence 2025 Assessment
Dublin, Ireland – 19 November 2025 – Cellusys has been ranked the #1 vendor for Steering of Roaming (SoR) for the third consecutive year in Kaleido Intelligence’s Roaming Vendor Hub 2025 (full report and release available at Kaleido Intelligence).
Kaleido’s Roaming Vendor Hub is the most detailed competitive intelligence assessment in the roaming ecosystem, covering 80 vendors across ten product categories and evaluating over 185 product offerings through a rigorous five-month research process.
“Cellusys continues to demonstrate clear leadership in Steering of Roaming,” said Nitin Bhas, Chief of Strategy & Insights at Kaleido Intelligence. “Our 2025 assessment saw strong performance in SoR capabilities, with Cellusys consistently delivering robust, operator-focused solutions that align with real-world roaming requirements.”
“We are extremely proud to achieve the #1 ranking in Kaleido Intelligence’s Steering of Roaming Vendor Hub once again,” said Brendan Cleary, CEO of Cellusys. “This milestone underscores our unwavering focus on innovative solutions and affirms our leadership position in the market. Steering of Roaming is foundational to roaming performance, and we continue to set the standard for visibility and control of mobile networks.”
Cellusys solutions are deployed by 250 operators across 150 countries, serving more than 2.5 billion subscribers globally. The company’s Roaming, Security and Analytics platforms integrate RVAS such as Steering of Roaming, alongside Signalling Firewall, Voice/SMS Firewall, and advanced analytics into a single configurable framework – giving operators visibility and control across SS7, Diameter, GTP, SIP and HTTP/2 signalling domains.
Kaleido Intelligence’s research identifies Steering of Roaming as one of the most strategically important roaming services for operators due to its direct impact on roaming service quality, network selection, and revenue optimisation. Cellusys’ long-standing #1 ranking reflects the strength of its SoR technology and ongoing investment in next-generation 5G SA steering capabilities.
About Kaleido Intelligence
Kaleido Intelligence is a specialist research consultancy providing market intelligence and strategic insight for the roaming, connectivity, and messaging ecosystem. Its Roaming Vendor Hub is recognised for delivering the most detailed competitive intelligence evaluations in the industry.
Learn more about Kaleido Intelligence and access the Roaming Vendor Hub 2025 at https://kaleidointelligence.com/pf/roaming-vendor-hub-competitive-intelligence-2025/
About Cellusys
Cellusys provides award-winning signalling security, roaming, and analytics solutions to mobile operators globally. Trusted by Tier 1 networks and groups across 180+ countries, Cellusys empowers operators to deliver safer, smarter, and more reliable connectivity.
To learn more, visit www.cellusys.com.
Read more about Cellusys roaming solutions.