Six developer-tool and infrastructure companies backed at the seed stage. Each investment reflects a deep conviction about a team, a market, and a product approach.
Syntract Capital leads and co-leads seed rounds in developer tools, API infrastructure, data platforms, and open-source commercial businesses.
DevStack is a unified developer workspace that integrates code review, incident response, and team knowledge management into a single collaborative environment. Unlike legacy tools that silo these workflows, DevStack surfaces real-time context exactly where engineers need it — reducing context switching and accelerating resolution times. The platform is built API-first and integrates natively with GitHub, Jira, PagerDuty, and Slack.
Developer-led enterprise adoption with a strong bottom-up motion. Founding team has deep experience building developer-facing products at Atlassian and PagerDuty. The integration-first architecture creates durable switching costs.
APIForge is an end-to-end platform for API design, mocking, testing, and production monitoring. Developers use APIForge to design OpenAPI-compliant endpoints collaboratively, generate type-safe client SDKs in twelve programming languages, and monitor API performance and error rates in production. The platform's AI-assisted testing layer automatically generates edge-case test suites from production traffic patterns, dramatically reducing manual QA effort for API teams.
API tooling is a massive and fragmented category. APIForge addresses the full lifecycle in a way no incumbent currently does. The AI testing layer is a defensible technical advantage that will compound as the training dataset grows.
CodeLens AI integrates into GitHub and GitLab pull request workflows to provide context-aware code review that understands architectural patterns, team coding standards, and historical decisions. Unlike generic AI coding assistants, CodeLens learns from each team's specific codebase and review history, becoming increasingly accurate and valuable over time. The platform flags not just bugs, but architecture violations, performance regressions, and security vulnerabilities in the context of the existing system.
The founding team includes former GitHub engineers who understand exactly how code review workflows operate at scale. The data flywheel — more review data generates better suggestions — creates a durable competitive moat. This is our largest initial check because of the team and market timing.
DataPipeline.io provides a developer-first platform for building, deploying, and monitoring data pipelines at any scale. The platform exposes a clean, version-controlled DSL for defining pipeline logic, with built-in support for streaming and batch modes, automatic schema inference, and lineage tracking. Engineers define pipelines as code, test them locally against sampled production data, and deploy to production with full rollback capabilities. The monitoring layer provides fine-grained observability without requiring a separate observability stack.
Data pipeline complexity is one of the most acute pain points in modern engineering teams. DataPipeline.io's developer-experience-first approach stands in sharp contrast to the enterprise-sales-first tools that dominate the category today. The team has production experience running petabyte-scale pipelines at a Fortune 100 company.
OpenBuild helps open-source maintainers build sustainable commercial businesses on top of their projects. The platform provides a complete suite of tools for publishing paid extensions, managing enterprise licensing, processing sponsorship and donation payments, and tracking which companies in the Fortune 500 are running their open-source software. OpenBuild's intelligence layer surfaces the commercial users of any open-source project, enabling maintainers to identify and convert their highest-value enterprise users into paying customers without requiring traditional enterprise sales motions.
We believe open source is the most powerful distribution mechanism in software, and that the commercial layer on top of successful open-source projects is dramatically underdeveloped. The founding team includes active maintainers of projects with over 40,000 GitHub stars combined — they understand this problem from the inside.
TerminalX builds a next-generation CLI framework for enterprise software teams, enabling platform engineering and DevOps teams to create internal CLIs that their engineering organizations actually love using. The platform handles authentication, access control, audit logging, and command discoverability out of the box. Companies using TerminalX report 40 percent reduction in time-to-resolution for operational tasks and significantly improved onboarding times for new engineering hires. The product integrates with all major identity providers and secrets management systems.
CLI tooling has been chronically underinvested relative to GUI tooling, despite the fact that engineers at most companies spend the majority of their productive time in the terminal. TerminalX attacks a real pain point with a product that has strong enterprise land-and-expand characteristics.
We invest in developer tools, API infrastructure, data platforms, open-source commercial businesses, and AI-assisted development tools at the seed stage.
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