Rewardful - All-in-One Affiliate Management Software for SaaS
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Best Referral Programs - A curated directory of startup referral programs
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
Landing Pages by Viral Loops - Easily create a landing page for your referral campaign ✌️
HelpScout - Help Scout is a simple, straightforward way to provide excellent support