The following are the most popular business diagrams on our site:
Situational Leadership Diagram 
CDSTEP Marketing Diagram 
Customer Lifecycle 
Swot Analysis 
GE McKinsey Nine Box Matrix 
DISC Model Dominance Influence Conscientiousness Steadiness - 5S Kaizen Framework
Five Factor Model of Personality 
Business Heat Map 
BCG Matrix 
7Ps of Marketing 
RACI Explained 
Product Roadmap Template 
DMAIC 
Recruitment Process