Problem

Large enterprises struggle to maintain and modernize sprawling software estates: technical debt accumulates across thousands of repositories, while security vulnerabilities, framework upgrades, language migrations, and end-of-life deadlines demand coordinated changes that are difficult to execute manually. The pain is both operational and economic—work that can take weeks or months across hundreds of applications consumes scarce engineering capacity and leaves companies exposed to security and modernization risk. Moderne’s core use case is mass remediation: applying a framework or language migration, vulnerability fix, or dependency upgrade consistently across an entire estate. Its customer examples report changes that once took weeks running in hours, including a global bank reducing a 64-hour upgrade to eight hours and an insurer automating migrations across 20 million lines of code and 1,200 repositories.

Product / Service

Moderne is an enterprise code-maintenance and modernization platform built on the open-source OpenRewrite ecosystem and the company’s proprietary scaling technology. OpenRewrite represents code as type-attributed Lossless Semantic Trees, then applies composable “recipes”—precise transformations such as dependency upgrades, method changes, security fixes, and framework migrations. Moderne precomputes and caches these structures so recipes can run across thousands of repositories in minutes rather than requiring each build to start from scratch; users can search code, inspect diffs, and create pull requests at scale for normal review through CI/CD. The platform includes multi-repository analysis and collaboration capabilities, deterministic tooling for software agents, and an air-gapped, fully on-premises option for organizations that must keep code and data within their own security controls.

Market

Moderne competes in automated code modernization, mass refactoring, technical-debt remediation, and software supply-chain security—an expanding category adjacent to AI coding assistants and legacy-application modernization tools. Gartner’s listed alternatives include TCS MasterCraft, Rocket Visual COBOL, BMC AMI DevX, Amazon Q Developer, Intellisys Platform, Mendix Platform, and Astadia, although these products span somewhat different modernization and developer-tooling use cases. Moderne has clear commercial traction rather than being pre-revenue: its case studies reference banks, retailers, insurers, and product teams, including deployments involving 50,000 repositories, 500-plus codebases, and more than 6,000 remediated issues. The company announced a $30 million Series B in February 2025; a September 2025 third-party estimate reported $4.5 million in revenue and 41 employees, so the revenue figure should be treated as an estimate rather than audited company disclosure.