SendGrid acquires customers of San Francisco-based Message Bus

BOULDER —SendGrid Inc., an email delivery services provider based in Boulder, has acquired the customers of San Francisco-based Mail Bypass Inc., which goes by the name Message Bus.

Financial terms of the deal were not disclosed, nor was the number of customers Send Grid bought from Message Bus.

Message Bus is a provider of cloud-based email infrastructure and sends more 300 million emails per month on behalf of its customers.

The two companies will work to transition customers to SendGrid’s email platform, which now includes more than 200,000 clients, including Taco Bell, Costco, Airbnb, and Spotify, according to a prepared statement.

“This acquisition immediately adds scale to our expanding customer roster, and we’re excited to bring Message Bus customers onto our platform,” said Sameer Dholakia, SendGrid’s chief executive, in a prepared statement. “This announcement underscores our momentum and rapid growth as we add nearly 1,500 new customers per month and continue to develop new product offerings.”

Message Bus was founded in 2010 to build cloud-based email infrastructure. It raised $19.3 million in four rounds, according to data maintained by CrunchBase. The company is shutting its doors, and employees will “head out to new adventures,” according to a post by CEO Paul Midgen on the company’s website.


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