Case study · Full-service marketing agency

Mid-Sized Agency — Amsterdam (30 staff)

55 clients · partner since June 2025

−65%
Onboarding a new account manager
Ramp-up time cut from 3 weeks to 8 days
0
Client incidents since implementation
Previously a serious incident twice a year
96%
Client retention
Annual churn dropped from 11% to 4%

The challenge

An established Amsterdam agency with 30 staff and 55 clients struggled with internal knowledge transfer. Client-specific agreements and briefings lived in the heads of account managers. When an employee left, that knowledge was lost. Twice in one year the agency had to apologize after an incident.

The solution with Senly

Senly's client profiles act as a central memory: all agreements, style guides and communication history are stored in a structured way. When an account manager changes, handover is just a matter of an introductory conversation — the file is ready and waiting. Not a single incident since implementation.

Features used

  • Client profiles & files
  • Team knowledge transfer
  • CRM
  • Approval history
"An agency is only as strong as its memory. When knowledge lives only in people's heads, you're vulnerable. Senly has become our institutional memory — and that has a value you can't capture in numbers."
Director, Chief Operating Officer

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