These are the main industry segments we have researched in the past.

API ManagementDocument Management (EDM)
RFID Middleware
Application Infrastructure / Platforms
Enterprise Portal
SAN and NAS
Application Integration (EAI)
Hyperconverged Infrastructure
Security
Application Lifecycle Management
Hypervisors
Software Testing
Application Server
Integrated Document Management (IDM)
Sourcing
Backup/Recovery
Learning Management Systems (LMS)Spend Analysis
Big Data AnalyticsNetwork Security Management
Storage Management
Business Activity Monitoring
NoSQL DatabasesSupplier Relationship Management
Business Process Management
Population Health and Value-based Care
Web Content Management
Cloud PlatformsPricing Optimization and Modeling
Web Globalization
Content Management (ECM)
Professional Services
Web Services
Compliance Management
Procurement

Converged Systems
Records Management