Developer Tools Startups

Steno.ai builds AI digital twins of influential leaders that enable one-on-one conversations with audiences at scale. The platform creates hyper-realistic AI replicas that can provide personalized guidance, advice, and authentic interactions between creators/leaders and their followers.

1 investor

StepSecurity provides a platform to prevent, detect, and respond to software supply chain attacks across developer machines, code repositories, and CI/CD pipelines. It offers security controls such as Harden-Runner, GitHub Actions monitoring, and a threat intelligence team focused on identifying supply chain attacks.

1 investor

AIChef is a mobile application that assists users with meal planning, recipe discovery, and shopping list generation based on available ingredients. The app serves home cooks and meal planners seeking to streamline their cooking process.

1 investor

Sticker builds reinforcement learning training environments for AI agents focused on commerce and procurement transactions.

1 investor

Stillwind develops an AI-powered search engine that converts natural language queries into electronic component specifications, matching them against a proprietary database of millions of parts. The company is building toward a broader platform for autonomous electrical engineering, targeting embedded systems engineers and hardware developers.

1 investor

Stirling builds technical infrastructure that reimagines PDF processing, allowing documents to be connected, processed, and routed across multiple sources and destinations at scale.

1 investor

Stirling PDF is an open-source PDF processing platform that provides editing, classification, and automation tools for individual and enterprise-scale document workflows. It offers private, on-premise deployment options and is trusted by 75% of the Fortune 500.

1 investor

1 investor

StitchFlow provides visibility and automation tools for cloud-native IT teams managing complex business and application sprawl in modern organizations.

1 investor

Store.app is a platform for developers to list and distribute their applications, emphasizing openness and developer choice.

1 investor

Storia AI develops an open-source AI agent that helps software developers understand and modify code within their organization's codebase and its operational context. The tool uses retrieval-augmented generation grounded in documentation and external references to answer developer questions about architecture decisions and code integration without generating false information.

1 investor

Straion is a system for engineering teams that centralizes architecture rules, security policies, and coding standards and automatically delivers the relevant ones to developers' AI coding agents, validating proposed task plans against them before code is written. Rules live in the team's own Git as versioned files reviewed like code, and it integrates with Claude Code, GitHub Copilot, and Cursor; it targets lead developers at teams of 100+.</parameter> <parameter name="founders">

1 investor

Xertra builds blockchain infrastructure and services for gaming and decentralized finance, offering a unified ecosystem that connects developers, gamers, and creators on Web3. The platform simplifies blockchain interaction through products like identity management, gasless transactions, compliant payments, scalable infrastructure, and NFT marketplaces.

1 investor

Streamdal provides code-native data privacy controls embedded directly in application code to detect and prevent personally identifiable information (PII) from being exposed in databases, data streams, or pipelines. The platform offers real-time data validation and privacy enforcement for applications across multiple programming languages.

1 investor

Streamfog provides a virtual camera application with real-time AR effects, beauty filters, and VTube avatars for streamers and content creators. The tool integrates with OBS, Streamlabs, Zoom, and Twitch to enable interactive streaming capabilities.

1 investor

Stringee provides communication APIs and SDKs that let developers add voice call, video call, and video conferencing features into their applications, supporting App-to-App, App-to-Phone, and Phone-to-App calls. It serves businesses across customer service, financial services, education, healthcare, media, and field services.

1 investor

Stripe Dev is Stripe's developer hub, providing documentation, SDKs, changelogs, and community resources for building web and mobile applications that accept payments, send payouts, and manage online business operations. It serves developers integrating Stripe's payment infrastructure and building platforms or Stripe apps.

1 investor

Provides fully containerized, cloud-native (Linux) and OS-specific development environments that developers can self-provision in seconds, with zero-trust access control, data-leak prevention, and policy enforcement. Aimed at enterprise EUC, IT, DevOps, and platform engineering teams supporting internal and remote developers.

1 investor

Struct is an AI-powered on-call agent that automatically investigates and resolves engineering alerts and incidents by integrating with observability platforms, alerting systems, and work tools. The platform serves software development teams to reduce manual incident triage and allow engineers to focus on shipping.

1 investor

Structured Labs builds knowledge infrastructure for AI agents by converting business data into structured, high-fidelity datasets used for search, recommendations, and intelligent applications. They provide the training-data layer for the agentic internet through products including Waldium and Preswald.

1 investor

Studio.inc is a Japanese company dedicated to providing creative tools and platforms that remove barriers to artistic expression and maximize the joy of creation for all people.

1 investor

Web design and development agency specializing in brand identity, web design, and Webflow development for startups and corporations in the UK.

1 investor

StudioPress builds WordPress themes and plugins, centered on its Genesis Framework, to help users create optimized, secure websites. Its products include the Genesis Framework, prebuilt themes, and content-building tools like Genesis Blocks and Custom Blocks aimed at bloggers, developers, and ecommerce site owners.

1 investor

Stykite develops infrastructure products for production-grade AI systems, including memory management for AI agents and knowledge systems for AI software.

1 investor