- Campaigning
- CD-Manual
- CEO-Kommunikation
- Change Management
- Change-Kommunikation
- Charisma
- Charismatische Redner*innen
- CI/CD
- Claim
- Clipping
- Closed User Groups
- CMS
- Communiqué
- Community
- Content
- Content Management System
- Content Marketing
- Content‑Strategie
- Controlling
- Conversion
- Copy
- Corporate Behaviour (CB)
- Corporate Communication (CC)
- Corporate Communication Management
- Corporate Communication Manager
- Corporate Design (CD)
- Corporate Identity (CI)
- Corporate Image
- Corporate Language
- Corporate Media
- Corporate Publishing
- Covid-19-Netiquette
- CRM
- Cross-Channel-Strategie
- Crossmedia
- CSS
- CTA
- Customer Journey
- Customer Relationship Management