AtomicJar Secures $25M Series A Funding and Launches Testcontainers Cloud Public Beta

NEW YORK–(BUSINESS WIRE)–AtomicJar, the company behind the popular open source library Testcontainers, today announced it has secured $25 million in Series A funding and is releasing Testcontainers Cloud to public beta. Global software investor Insight Partners led the round, with participation from existing investors boldstart ventures, Tribe Capital, Chalfen Ventures and Snyk co-founder Guy Podjarny and CEO Peter McKay. New investors include Irregular Expressions, a VC fund representing over 90 CTOs and CTOs from leading technology companies; software industry veteran Walter Scott; and the co-founders of Tackle.io. AtomicJar will use the new funding to scale its development team, increase the number and types of databases and languages ​​supported by Testcontainers open-source libraries, and increase the experience of shift-left test developers with Testcontainers Cloud to improve.

“We’re incredibly grateful for the support of our investors, who are helping us focus on the testing tools that developers need so they can ship software with confidence,” said Sergei Egorov, co-founder and CEO of AtomicJar. “Few things can cost more than a developer waiting for something, and testing is a common cause of downtime. With test containers, we’re moving testing left, from QA teams and staging environments to developers writing and running tests in IDEs. It’s like unit testing, but thanks to containers with real dependencies!”

“AtomicJar Testcontainers Cloud will retain the developer-friendly approach that Testcontainers OSS offers, but with all the features organizations expect from a critical infrastructure,” said Jon Rosenbaum, Managing Director, Insight Partners. “We see the potential for AtomicJar to become a universal developer tool and synonymous with integration testing.” Rosenbaum will join AtomicJar’s board of directors.

Microservices are changing software testing

One of the fastest growing segments of the global software testing market is microservices testing. Testing microservices has traditionally been a painful challenge for developers. Testcontainers was founded to solve this problem and its adoption is now accelerating.

Founded in 2015, Testcontainers has transformed testable development at leading development organizations such as DoorDash, Spotify, Uber, Google, Zalando and many others and has become the de facto standard for dev-first testing. In 2022, Testcontainers saw Docker Hub downloads increase from 50 million to 100 million, making it one of the fastest growing open source projects in the testing category. It is currently downloaded more than 6 million times a month.

In response to this tremendous demand, AtomicJar is releasing Testcontainers Cloud, its first commercial offering, in beta. Testcontainers Cloud is a scalable, on-demand service that unlocks the full Testcontainers experience by charging developer laptops and simplifying CI pipelines for development teams without the need to streamline existing tests.

“We’re excited to continue to support the AtomicJar team in their mission to shift integration testing leftward so companies can deliver better code, faster,” said Ed Sim, founder and general partner of boldstart ventures. “With the Testcontainers Cloud beta, AtomicJar takes what the Testcontainers community already loves and makes it 10x better, faster, and easier to use. As software applications become more complex and dependent, we are excited about the tremendous opportunity AtomicJar offers.”

“At AWS, testing was an integral part of the inner development loop, and passing integration tests was part of the definition of ‘done’ for each check-in,” said Eli Aleyner, part of the AWS founding team and co-founder, AtomicJar. “This culture shift is happening in a similar way in other organizations. Developers are looking for self-contained, repeatable, true integration test solutions that don’t depend on bottlenecks in staging environments – a use case where test containers shine. I wish test containers had existed when we built AWS.”

The advantages of the test container cloud

Testcontainers Cloud makes the introduction of test containers easy for any company. It installs in five minutes and provides consistent test results with faster execution and elastic resources that are always available.

Testcontainers Cloud removes all hardware and software limitations and is a major productivity boost for development teams that want to:

  • Test everything on laptops without worrying about resources (no local docker daemon required).

  • Run your ever-growing test suite without scaling your CI workers and speed it up by running tests in parallel.

  • Improve team efficiency by eliminating unreliable tests and ensuring consistency from developer to CI.

“We have believed in the vision of Testcontainers Cloud from day one and look forward to working with AtomicJar to add it to our platform. Our goal is to make the Netflix testing experience consistent and reduce the operational load of Docker. Testcontainers has played a big role in bringing Netflix, and Testcontainers Cloud is taking it to the next level,” said Roberto Pérez Alcolea, Senior Software Engineer, Productivity Engineering, Netflix. “Our metrics show that up to 90 percent of build time is spent on testing, so any kind of consistency or speed improvement can make a big difference. Some of our engineers are already using Testcontainer’s cloud on a daily basis, and we believe it fits in with Netflix’s ongoing effort to accelerate the developer feedback loop by allowing developers to run their tests locally and more frequently, regardless of their development environment.”

Get started with Testcontainers Cloud today

Testcontainers Cloud public beta is available now and is free to use. Developers can start testing in minutes. To learn more, please visit: https://www.testcontainers.cloud/.

About AtomicJar

AtomicJar is dedicated to simplifying integration testing for developers throughout the software development lifecycle. AtomicJar was founded by the same team that maintains the most popular integration testing library, Testcontainers. AtomicJar provides developers with easier ways to test with containers and anything that runs in containers, against the many dependencies that code builds into production. For more information visit https://atomicjar.com or follow us https://twitter.com/AtomicJarInc.

About Insight Partners

Insight Partners is a global software investor that partners with high-growth technology, software and internet startups and scale-ups that are driving transformative change in their industries. As of June 30, 2022, the firm had over $80 billion in regulatory assets under management. Insight Partners has invested in more than 700 companies worldwide and supported over 55 portfolio companies in their IPOs. Insight is headquartered in New York City with offices in London, Tel Aviv and Palo Alto. Insight’s mission is to find, fund and partner with visionary leaders by providing them with right-sized, right-time, practical software expertise on their growth journey from their initial investment to their IPO . For more information on Insight and all of its investments, visit insightpartners.com or follow us on Twitter @insightpartners.

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