Insights

Industry Leadership Cellusys is a recognized leader in roaming analytics, roaming security, and signaling firewall solutions with multiple year wins and top vendor rankings. This positions them as a premium partner for operators seeking advanced fraud protection, roaming optimization, and secure signaling in multi-generation networks.

Expansion Targets Recent deployments and awards indicate active growth and adoption across global operators, including a notable integration with U Mobile and continued awards from Juniper Research. Target expansion with regional mobile operators seeking Roaming Analytics, Fraud Protection, and Signaling security will likely yield broad opportunities.

Network Security Focus A strong emphasis on security, including SMS, Voice, and Signaling Firewalls, and ongoing success in fraud analytics create a compelling value proposition for operators prioritizing anti-fraud, network integrity, and IoT security across 2G to 5G ecosystems.

Product-Market Fit Cellusys products consistently outperform competitors in key areas like Steering of Roaming and Signalling Firewall, backed by 1.35 billion subscribers served. This signals high relevance for operators needing robust, scalable, and trusted signaling control and roaming management.

Sales Triggers Their recognition as Platinum winners and Champion Vendor, plus ongoing time-sensitive awards and deployments, creates sales opportunities around partnership-led deals, reference opportunities, and cross-sell of integrated security, analytics, and roaming optimization to operators aiming to modernize their core networks.

Cellusys Tech Stack

Cellusys uses 8 technology products and services including Ansible, WordPress, Redis, and more. Explore Cellusys's tech stack below.

Media & News

Cellusys's Email Address Formats

Cellusys uses at least 1 format(s):
Cellusys Email FormatsExamplePercentage
First.Last@cellusys.comJohn.Doe@cellusys.com
58%
First@cellusys.comJohn@cellusys.com
34%
Last@cellusys.comDoe@cellusys.com
8%

Frequently Asked Questions

What is Cellusys's official website and social media links?

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Cellusys's official website is cellusys.com and has social profiles on LinkedIn.

How much revenue does Cellusys generate?

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As of August 2026, Cellusys's annual revenue is estimated to be $10M - $25M.

What is Cellusys's NAICS code?

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Cellusys's NAICS code is 517 - Telecommunications.

How many employees does Cellusys have currently?

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As of August 2026, Cellusys has approximately 149 employees across 5 continents, including EuropeAsiaNorth America. Key team members include Chief Technology Officer: D. M.Chief Financial Officer: N. B.Chief Strategy Officer (cso): S. K.. Explore Cellusys's employee directory with LeadIQ.

What industry does Cellusys belong to?

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Cellusys operates in the Telecommunications industry.

What technology does Cellusys use?

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Cellusys's tech stack includes AnsibleWordPressRedisAmazon Simple Email ServiceMailgunHubSpotCiscoPuppet.

What is Cellusys's email format?

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Cellusys's email format typically follows the pattern of First.Last@cellusys.com. Find more Cellusys email formats with LeadIQ.

When was Cellusys founded?

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Cellusys was founded in 2004.
Cellusys logo

Cellusys

TelecommunicationsDublin, Ireland51-200 Employees

Cellusys is a telecommunications company that provides mobile network operators with tools to grow revenue, secure networks, and improve subscriber experience. Its technology centers on signaling visibility and control, with a focus on roaming, security, IoT, and analytics. Founded in 2005 and based in Dublin, Ireland, the company has developed systems for roaming steering and signaling firewall and serves more than 1.35 billion subscribers worldwide.

Its customers are mobile operators seeking to manage roaming and security while leveraging analytics for fraud prevention and network optimization. Within the telecommunications industry, Cellusys is positioned as a provider of roaming steering, fraud protection, and security analytics solutions. A notable recent development is the October 2025 partnership with Arelion to offer hosted roaming value-added services.

Section iconCompany Overview

NAICS Code
517 - Telecommunications
Founded
2004
Employees
51-200

Section iconFunding & Financials

  • $10M - $25M

    Cellusys's revenue is estimated to be in the range of $10M - $25M

Section iconFunding & Financials

  • $10M - $25M

    Cellusys's revenue is estimated to be in the range of $10M - $25M

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