Looking into : Leandata x Ring Lead x Leadangel

Features Leandata Ring Lead Leadangel
Data Matching  
Inbound Lead Routing  
Account Based lead Routing
ABM Engagement
Lead-to-Account Matching
Round Robin Lead Assignment
Customizable tiebreaks
Advanced Lead Processing
Account Routing
Email Reminders    
Salesforce integration      
Automation Scheduling    
Lead to contact conversion    
Route and Assign leads to the salesrep      
Route objects in Salesforce    
Fuzzy Matching Algorithm      
Task/Opportunity Creation      
Lead Segmentation  
Open API Integration  
Batch Router (Bulk Routing)  
Real Time Lead Router      
Lead Dedupe and Merge      
Account Dedupe  
Virtual Account (Non CRM)  
Lead Scoring    
Lead Escalation (Lead Reassigning)    
Sales Person Affinity (historical sales rep routing)  
Pricing User Based User Based Flat Platform Fee
Lead Matching    
Detailed Lead Routing Reporting    
Account and Opportunity Conversion