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ZeroTurnaround develops tools to enhance Java developer productivity. Its main products, JRebel and XRebel, address core inefficiencies in Java development. JRebel enables instant code changes without application redeploys, accelerating iteration. XRebel provides real-time performance insights within the development environment, aiding swift issue identification.
Founded in 2007 by Jevgeni Kabanov and Toomas Römer, ZeroTurnaround originated from Kabanov's insight into development bottlenecks. He observed significant time lost to repetitive recompilation and redeployment in Java projects. This led to JRebel's creation, designed to eliminate delays and foster a more efficient development workflow.
Java developers use ZeroTurnaround's solutions to optimize workflows and improve application quality. The company envisions redefining interaction with Java code, establishing an ecosystem where rapid experimentation and continuous feedback are standard. This commitment seeks to increase the efficiency and responsiveness of Java software development.
ZeroTurnaround has raised $8.0M across 2 funding rounds.
ZeroTurnaround has raised $8.0M in total across 2 funding rounds.
ZeroTurnaround is an Estonian software company founded in 2007 that develops tools to boost Java developer productivity, primarily through its flagship product JRebel, which enables instant code change visualization without full redeploys, saving developers 4-6 weeks annually.[1][5] It serves over 4,000 customers—including 25% of Fortune 100 teams—in nearly 90 countries, with additional products like LiveRebel for application release management and XRebel for Java profiling, addressing pain points in Java development workflows.[1][2][3] The company self-funded rapid growth via sales before raising $6 million in 2013 and was later acquired by Perforce, maintaining strong enterprise adoption.[1][5]
ZeroTurnaround emerged in 2007 when Jevgeni Kabanov and Toomas Römer, engineers at Webmedia (now Nortal) in Estonia, invented technology to accelerate Java development by allowing real-time code updates.[1][5] Frustrated by slow redeployment cycles in Java tools, they launched JRebel as the core product, quickly gaining traction among developers worldwide.[1][3] Early milestones included bootstrapped expansion to offices in Tallinn, Tartu, Boston, and the Czech Republic; 4,000 customers by 2014; and recognition as Estonia's "#1 company to watch" in 2012, with Kabanov receiving the Fifth Class Order of the White Star.[1] Pivotal growth came from product expansions like LiveRebel (2010s) and a $6 million funding round in 2013, culminating in Perforce's acquisition, rebranding the core as Perforce JRebel.[5]
ZeroTurnaround rides the developer productivity wave in Java ecosystems, where slow build-deploy cycles hinder agility amid microservices, cloud-native apps, and DevOps shifts.[3] Timing aligned with Java's enterprise dominance (still powering 70%+ of backend systems) and rising demands for faster iteration, filling gaps Oracle/Sun never addressed in JDK.[1][3] Market forces like remote teams, CI/CD proliferation, and talent shortages amplify its value, influencing the ecosystem by setting standards for hot-reload tools and inspiring similar innovations.[3][5] Its Estonian origin highlights Baltic tech hubs' role in exporting niche devtools globally.
ZeroTurnaround's acquisition by Perforce positions JRebel for deeper integration into enterprise DevOps stacks, with potential expansions into multi-language support or AI-assisted profiling.[5] Trends like edge computing, serverless Java, and low-code shifts will drive demand, evolving its influence from niche Java fixer to broader productivity platform. As Perforce JRebel, it remains a cornerstone for accelerating developer velocity in a speed-obsessed tech world—echoing its 2007 origins in solving real pain for code that deploys faster.
ZeroTurnaround has raised $8.0M in total across 2 funding rounds.
ZeroTurnaround's investors include Ben Holzman, ACME Capital, Battery Ventures, Canvas Ventures, Casa Verde Capital, Fifth Wall, Flybridge Capital Partners, Fyrefly VC, General Atlantic, Gigascale Capital, Great Oaks Venture Capital, Khosla Ventures.
ZeroTurnaround has raised $8.0M across 2 funding rounds. Most recently, it raised $5.0M Series B in July 2015.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jul 1, 2015 | $5M Series B | BEN Holzman | ACME Capital, Battery Ventures, Canvas Ventures, Casa Verde Capital, Fifth Wall, Flybridge Capital Partners, Fyrefly VC, General Atlantic, Gigascale Capital, Great Oaks Venture Capital, Khosla Ventures, Pear VC, Queensbridge Venture Partners, Sherpa Ventures, SoftBank Investment Advisers, Summit Partners, ThirdLove, Uncorrelated Ventures, Venture Guides, Webb Investment Network, Shervin Pishevar, Western Technology Investment | Announced |
| Jan 1, 2014 | $3M Series U | — | ACME Capital, Battery Ventures, Canvas Ventures, Casa Verde Capital, Fifth Wall, Flybridge Capital Partners, Fyrefly VC, General Atlantic, Gigascale Capital, Great Oaks Venture Capital, Khosla Ventures, Pear VC, Queensbridge Venture Partners, Sherpa Ventures, SoftBank Investment Advisers, Summit Partners, ThirdLove, Uncorrelated Ventures, Venture Guides, Webb Investment Network, Shervin Pishevar | Announced |
