Companies David has worked for in the past, in no particular order

Veeam Software
EMC Isilon Division
Seagate Cloud Systems and Solutions
Quantum Corporation
Enterprise Strategy Group
NetApp
OpenVision (Veritas)
Unisys S3 Software Division
Double-Take Software
Cheyenne Software

Data Protection and Cloud Related Links
Reporting Standards for Service Organizations (i.e. Cloud Datacenters) SSAE 16
CORDIS – The Future of Cloud Computing: Opportunities for European Cloud Computing beyond 2010
CORDIS: Advances in Cloud Computing
EU GDPR Site Portal: Overview

Interesting Companies & Technologies to follow
SpringPath (now Cisco)
Nutanix
SimpliVity (Now HPE)
Scale Computing
OwnCloud
Veeam
Cohesity
Datrium
Datos IO (now Rubrik)
Nimble (Now HPE)
OpenIO
Nasuni
StorOne