Mailgun, an email delivery platform, has acquired its email marketing rival Mailjet, adding to the hundreds of thousands of companies that already benefit from Mailgun’s email API solutions around the world.

The combination of the two companies creates a business serving over 290,000 businesses in more than 150 countries, though Mailjet will continue to operate as a separate brand. Mailgun, which is backed by private equity firm Thoma Bravo, aims to use the acquisition to provide its customers with a ‘wider range of technology solutions to ensure optimal ROI’.

“Email was the foundation of the internet, and it continues to be a mission-critical component of life and business today, as the highest ROI activity compared to all other marketing channels,” said Will Conway, CEO of Mailgun. “With Mailjet now a part of Mailgun, the combination of Mailguns developer ethos and API orientation and Mailjets multi-language support and intuitive GUI will enable our customers to improve their deliverability and achieve even better results from their email.”

The pair, both founded in 2010, are promising developers and marketers access to ‘robust’ deliverability tools and marketing feature sets, the ability to collaborate across departmental lines, ‘easy’ API integration, scalability, and direct access to experts.

“We are thrilled to join Mailgun and enter this next chapter of the Mailjet story,” said Alexis Renard, CEO of Mailjet. “At Mailjet, we pride ourselves on being the trusted solution to create, send, and optimise your emails as a team. It’s exciting to expand and deliver on that vision of helping marketers and developers work together as we learn from Mailgun’s impressive, developer-first approach and focus on deliverability.”