Clearbit Salesforce - Rapportive for Salesforce, augment lead data
AirPay - Integrate all payment channels via one single API
Mixmax Sequences - Easy & powerful drip campaigns for Gmail, Inbox & Salesforce
LeaseLock - Insurance for rent payments (apartment cosigner alternative)
Lydia - Lydia lets you use your card whatever you need to pay, even a friend.
EmailDrips - Get inspired by examples of email sequences