SendGrid

Leading cloud-based email delivery platform with strong developer focus and high-volume transactional email capabilities

SendGrid is a cloud-based email delivery and management platform founded in 2009 that provides transactional and marketing email services to businesses of all sizes. The company specializes in ensuring reliable email deliverability through its robust infrastructure, offering APIs for developers to integrate email functionality into applications, as well as marketing campaign tools for creating and managing email communications. SendGrid processes billions of emails monthly for over 80,000 customers including major brands like Uber, Airbnb, and Spotify. While not strictly an AdTech company in the traditional sense, SendGrid plays a significant role in the marketing technology (MarTech) ecosystem, particularly in email marketing and customer communication. In 2019, SendGrid was acquired by Twilio for approximately $3 billion, becoming part of Twilio's customer engagement platform. The acquisition strengthened Twilio's position in multi-channel communications by adding email capabilities to its existing SMS, voice, and messaging services. SendGrid continues to operate as a distinct product within Twilio's portfolio, serving as a critical infrastructure component for businesses that rely on email for transactional notifications, marketing campaigns, and customer engagement.