Where technologies meet security:

 We, the Olcha team, would like to express our sincere gratitude to the Celion team for their attention to detail and professionalism in identifying and fixing the ulnerabilities of our website. Their ability to identify complex security issues and offer effective solutions has helped us significantly improve the security of our data and services. Their work has undoubtedly played a key role in protecting the interests of our clients and strengthening trust in our brand.

 Top Brains would like to express its sincere gratitude to the Celion team for their expert analysis and professional intervention in improving our cybersecurity. The work they have done, including identifying and fixing complex vulnerabilities, has significantly HELPED us to secure our customers' confidential information and improve the overall security level of our systems. This contribution is of great importance to our business, and we highly value their professionalism and dedication to their work.

Working with "Celion" has been a great satisfaction for us. They have carried out a comprehensive analysis of our systems and implemented effective security measures that meet the highest standards. Particularly noteworthy is their individual approach to our needs and their quick response to any emerging threats.

 The employees of "Celion" demonstrated a high level of professionalism and competence. Their approach to implementing solutions was carefully thought out and adapted to our specific needs, which allowed us to minimize risks and strengthen our information security. The team was always in touch and promptly responded to any questions that arose.  We are confident that "Celion" will continue to provide high-quality services to its customers and recommend them to anyone who needs reliable and professional support in the field of cybersecurity.

Celion served as an external sanity check on our stack: a layered audit that cataloged vulnerabilities, control gaps, and policy misalignments. The remediation roadmap they delivered let us harden data protections in a disciplined way and bring our processes into line with industry standards. Their post‑audit follow‑through was excellent—fast responses and hands‑on guidance through implementation. They’re a partner we trust on high‑criticality initiatives.

Celion ran a full audit of our systems, rapidly surfacing vulnerabilities and control gaps. Their clear remediation roadmap let us harden data protection and bring our processes into line with industry standards fast. For critical projects, Celion is a partner we can count on.

Within weeks of working with Celion, we strengthened data protection at Express 24 and brought our processes up to industry standards. That progress came from their rapid, comprehensive security audit, which surfaced critical vulnerabilities and clear, practical fixes. Celion responds quickly—they're a partner we trust.

With the user‑friendly app and interactive Power BI dashboard (complete with custom visuals) that Celion built for IHMA, we track key metrics in real time and make faster, data‑driven decisions. The build quality and attention to detail stood out. Celion is a partner whose work delivers tangible value.

Since rolling out the Celion‑built APK app, PraeLegal has significantly sped up document handling and reduced manual effort. The app centralizes fast info lookup, document list management, and automated routines, while One ID single sign‑on keeps staff access secure and seamless. Working with Celion is driving real efficiency gains.

Since rolling out the unified mobile app and admin console Celion built for EMU University, the academic process is more transparent and engagement is stronger. Parents can track grades, schedules, attendance, and complaints in one place, while faculty and admins manage data and roles through an intuitive dashboard. Built‑in notifications ensure no one misses grade updates, schedule changes, or attendance issues. The solution brings students, teachers, and parents together in a single system.