Hear - Hear is a sound enhancement application for the Mac.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Krisp - Eliminate background noise, minimize distractions, feel more confident, and activate your communication superpower with Krisp, an AI-powered software solution for effective online meetings.

C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

TimeBolt - spend less time editing video

Drift - A messaging app that helps you grow your business.