Sinch + Pathwire

Sinch to acquire Pathwire, creating a best-of-breed cloud communications platform


At Pathwire, our mission has always been to solve the hard problems behind communications, and we’ve always strived to offer a reliable path between two connections – a business and its customers.

Twelve years ago, John founded Email on Acid with one simple mission: make it easy for marketers and developers to perfect their emails. The idea was to give customers a hit of email confidence every time they send a campaign.

A lot has changed at Email on Acid since then - we’ve gone from a small and mighty team based in Denver working hard to offer the best email experience for email geeks to a fast-growing, multinational workforce that serves 100,000 paying customers worldwide - but through it all, our mission has always remained the same.

Now, we’re thrilled to announce this next step in our evolution: Pathwire, along with its portfolio of brands including Email on Acid, has entered an agreement to be acquired by Sinch, a global leader in cloud communications for mobile customer engagement. Together with Sinch, we will be able to help our customers expand their reach and increase engagement with additional communication channels.

The Pathwire family joins Sinch

Sinch started in Stockholm in 2008 and has emerged as an international communications powerhouse serving enterprises like Nespresso and Macy’s around the globe. Its platform lets businesses reach every mobile phone on the planet, in seconds or less, through mobile messaging, voice, and video. With a local presence in more than 40 countries, Sinch brings a global vision of superior quality and innovation in communications. 

Pathwire’s suite of powerful email APIs, innovative email campaign management, and reliable email testing is a natural fit for Sinch. We’re thrilled to bring a business-critical communication channel – email – into the Sinch portfolio for the first time.

Following the close of the acquisition, Sinch will look to accelerate our efforts in building cutting-edge, scalable email solutions, promote further international expansion, and task the Pathwire team to establish a leading position in developer-centric cloud communications. Together, we will be able to empower over 180,000 businesses to engage their customers like never before – on any channel.

What does this mean for you?

We know how critical email is to your business. Our commitment to offering reliable infrastructure, smarter solutions based on machine learning, localized email expertise, and industry-leading support is unwavering. 

If you’re a current Email on Acid user, rest assured that you will see no change in Email on Acid’s platform, support, or service offerings as we work with the Sinch team to drive the acquisition through to a close, which is expected in late 2021. We will continue to operate as a standalone business, but in the near future, we’re looking forward to offering a wide range of communication APIs so you can continue your EoA pre-deployment checklist all the way through delivery.

Follow our path

Since we embarked on this journey, our goal has been to help our customers build connected experiences, and we feel confident that this next chapter with Sinch will further support that mission. We wouldn’t have been able to do it without you. Your advocacy, feedback, and support have helped shape us into the service we are today. 

We have big plans for what’s to come, and we can’t wait to share them with you. Keep an eye on our blog and sign up for our newsletter to be the first to know about our next steps, and visit the Sinch website to learn more about the Sinch portfolio.

Thanks for choosing Pathwire for all your email needs, and as always…

Happy sending!

Will and the Email on Acid team


Disclaimer: Closing of the transaction is subject to customary closing conditions, such as any applicable governmental or other approvals. The transaction is expected to close in late 2021.