- Authentication
- Backup
- Capacity Planning
- Demilitarized Zone
- Enterprise
- gateway
- Hardening
- High Availability
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- Incident Response
- Industry
- Local Area Network
- Managed Services
- Monitoring
- Network Operator
- on-premises
- Outsourced
- Protection
- Public Sector
- Quality of Service
- Segmentation
- Server
- Service Level Agreements
- Services
- Systems Integration
- Threats
- Virtualization
- Virtual LAN
- Virtual Private Network
- Wide Area Network
- Wireless
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Who is C3?
C3 is a Polish IT services and consulting company that designs, implements, and maintains network, security, and infrastructure solutions for enterprise and public-sector clients.
- Design and deployment of corporate Local Area Network (LAN), Wide Area Network (WAN), and wireless networks for enterprises and institutions.
- Implementation and integration of IT security solutions, including firewalling, secure access, and threat protection (security).
- Delivery and support of server, storage, and virtualization platforms for data center and on-premises (on-prem) environments (infrastructure).
- Managed services, monitoring, and maintenance of IT environments, including Service Level Agreements (SLAs) and outsourced administration (IT services).
- Consulting, audits, and technical training related to networking, security, and infrastructure architectures.
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More About
C3 operates as an IT integrator and service provider focused on enterprise networking, security, and infrastructure projects, typically serving medium to large organizations and public-sector entities that require managed, secure, and resilient IT environments.
The company’s portfolio centers on the design and delivery of corporate network architectures, including switching, routing, and wireless access for office campuses, industrial sites, and distributed branch locations, usually involving technologies such as Virtual Private Network (VPN), Virtual LAN (VLAN) segmentation, Quality of Service (QoS), and high-availability mechanisms to keep business applications reachable across multiple sites.
In security, C3 works with firewalling, intrusion prevention, secure remote access, and endpoint or gateway protection (security), aligning with common enterprise security architectures like perimeter security, Demilitarized Zone (DMZ) design, and secure access for remote and mobile users, and in many cases integrating with directory services and authentication protocols such as RADIUS or LDAP.
On the infrastructure side, C3 supports server and storage deployments, typically on virtualized platforms (virtualization infrastructure) that host business applications, databases, and collaboration systems; this includes system sizing, hardware installation, configuration of hypervisors, and basic backup and recovery tooling to maintain continuity of operations.
The company also provides managed services and outsourcing (IT services), where it takes responsibility for ongoing monitoring, administration, and incident response for customer environments under SLAs, often using centralized management consoles, logging, and alerting platforms so that IT teams have a single point of contact for infrastructure support.
C3’s consulting and audit services help organizations assess existing networks and security postures, plan migrations or upgrades, and align deployments with vendor reference architectures or industry practices; this may cover topics such as network performance diagnostics, security hardening, capacity planning, and documentation for compliance-related audits.
Within an enterprise technology directory, C3 can be categorized under IT services and systems integration, with solution coverage that spans networking, IT security, data center and virtualization infrastructure, and managed IT services for organizations that require external support to design, implement, and operate their core IT platforms.
Our description of C3. Updated February 2026.
