SparkPost ranks #8 in Transactional Email & Developer Email APIs AI search.

Bird (formerly MessageBird) is an Amsterdam-based omnichannel communications platform that acquired SparkPost in April 2021 for $600 million. SparkPost—now rebranded as Bird Email—is among the world's highest-volume email infrastructure services, processing approximately 4.5 trillion emails annually and claiming to power roughly 40% of global commercial email. Originally built as an enterprise cloud email API with proprietary predictive deliverability analytics (SparkPost Signals), Health Score alerting, and spam-trap monitoring, the platform now operates as the email channel within Bird's broader CRM suite that also covers SMS, WhatsApp, RCS, and voice. Bird serves more than 20,000 global customers, including enterprises such as Adobe, The New York Times, Zillow, and Booking.com. The company raised approximately $1.1 billion in total funding and was last valued at $3.8 billion in 2021. It remains privately held.