Brevo, a customer relationship management company headquartered in Paris, is now a unicorn — a startup valued at more than $1 billion. The startup raised €500 million in fresh equity funding ($583 million), which will fund its efforts to compete with larger players such as Hubspot and Salesforce not just in Europe, but also on their home turf in the U.S. Formerly known as Sendinblue, Brevo started out in 2012 as an email marketing solution for small businesses. The company expanded into mid-mark...