Attentive

Full-time headcount: 380 | Headquarters: New York City | Year founded: 2016 | Most common skills: Digital Marketing, Social Media Marketing, E-commerce | Largest job functions: Engineering, Sales, Business Development | What you should know: Attentive specializes in mobile messaging marketing, which uses real-time behavioral data that helps brands target users at the right moment. It works with companies like Urban Outfitters, CB2 and Coach. The startup raised $110 million in funding in 2020, and it plans to use those funds to keep growing: CEO Brian Long expects to have more than 400 employees by the end of this year.