Our People

Karlien Blackwell

Finance Manager

Karlien joined Rock in February 2020 as a Financial Accountant to assist the Finance Managers on the UK projects and the Management Accountant on the wider Rock Rail Group.  Karlien started just before the Covid lockdown and created a wholly digital Trial Balance review platform for all the projects, which is still used today.

Prior to joining Rock, Karlien was a Senior in the Outsourcing department of Mazars where she was responsible for the Management Accounts for multiple clients.

Karlien is now the Finance Manager responsible for the reporting on the following projects:

Notable transactions


  • Rock Rail East Anglia
  • Rock Rail West Coast
  • Rock Rail East Midlands