Sakurity - Sakurity does penetration tests, source code audit and vulnerability assessment.
SpoofCard - Disguise your Caller ID
Flexera Software Vulnerability Manager - Flexera Software Vulnerability Manager provides solutions to continuously track, identify and remediate vulnerable applications.
Bad Numbers - A reverse telephone lookup of unwanted calls
StackPath - Secure Content Delivery Network, DDoS, WAF Service
6degrees - Get introductions through your friends' phones