GetHuman - Find customer service numbers fast
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Lucyphone - Telephone hold application.
Zoho Desk - Industry's first context-aware Helpdesk Software
Linkboost.co - The most powerful tool to go viral on LinkedIn. 10x your Linkedin reach boosting your content.
Salesforce Service Cloud - Service Cloud integrates customer service with social networks and provides a self-service customer portal and knowledge base system.