Contact Information
Company Information
Industry
information technology & services
Professional Summary
Jan Kellermann serves as CTO at werk21 GmbH. werk21 GmbH operates in the information technology & services sector with approximately 15.0 employees. The company is headquartered in Berlin, Berlin.
Industry & Role Insights
-
•
MessageCEO tracks 50,503 executives in the information technology & services sector.
-
•
We have verified contacts for 2 executives at werk21 GmbH.
-
•
1,259 executive contacts are available in Berlin.
-
•
Our database includes 201,469 c suite-level executives.
Technologies
Microsoft Office 365
Mobile Friendly
WordPress.org
Apache
Bootstrap Framework
Varnish
Render
Android
Xamarin
Remote
Node.js
IoT
React Native
TikTok
Flutter
Python
AI
Terraform
Ansible
Docker
Keywords
konzeption
cms drupal
webseiten
open source
hosting
beratung
onlineportale
technology
information & internet
online agency
drupal agency
political communication
campaign development
ngo support
social media strategy
content management system
website development
web applications
software development
bigbluebutton hosting
online conferencing
gdpr compliance
data security
nextcloud collaboration
digital services
open source software
web hosting
maintenance services
updates & support
user engagement
communication strategies
project management
campaign management
meeting solutions
remote collaboration
e-learning solutions
virtual seminars
online meetings
custom solutions
website customization
online presence
digital transformation
secure hosting
user-friendly interfaces
frontend development
remote work tools
client support
tailored services
technical support
team building solutions
integrated systems
communications management
digital workflows
community engagement
design services
political campaigning
fundraising support
client relationships
interactive web design
computer software
information technology & services
web development
computer & network security
productivity
Related Executives
Outreach Guidance — information technology & services Sector
Technology executives make decisions on infrastructure, tooling, and partnerships. When reaching out to Jan Kellermann, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.
Frequently Asked Questions
How do I reach Jan Kellermann directly?
Jan Kellermann's verified email address is available to MessageCEO Pro subscribers. They currently serve as CTO at werk21 GmbH. Access direct contact info to skip gatekeepers and reach the decision maker.
What company does Jan Kellermann work for?
Jan Kellermann is CTO at werk21 GmbH, a company in the information technology & services sector with 15.0 employees. The company is based in Berlin, Berlin.
Can I pitch or sell to Jan Kellermann?
As CTO at werk21 GmbH, Jan Kellermann is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Jan Kellermann directly — ideal for B2B sales, partnerships, and executive recruiting.
What industry is Jan Kellermann in?
Jan Kellermann works in the information technology & services industry as CTO at werk21 GmbH. MessageCEO provides verified contact information for executives across all major industries.
Is Jan Kellermann's contact information verified?
Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Jan Kellermann's profile is kept up-to-date with the latest available information.
Last updated: May 17, 2026
Get Full Contact Details
Subscribe to reveal email addresses and export contacts.
View Plans