Developer Tools Startups

QualSights operates a consumer insights technology platform that captures how people use physical products in everyday settings, using always-on smart sensors, a participant app for video, photo and survey feedback, and AI-moderated voice conversations. It serves consumer product brands conducting qualitative and quantitative research such as usage studies, concept testing, prototype testing, and shopper journey analysis.

3 investors

Quesma provides observability for AI coding agents, turning Claude Code, Codex, and Cursor sessions into a view of what the agents did, what it cost, and what results were produced. It uses an open-source collector that deploys in a customer's own environment and surfaces recurring problems and reusable practices across engineering teams.

3 investors

Queue provides a platform for managing creative agency operations, serving video editors, UI/UX designers, and esports coaches for tasks like VOD reviews and project management.

3 investors

Quilt provides a data platform for life sciences teams to organize, manage, and collaborate on scientific data stored in AWS. The platform consolidates data across multiple sources, enables AI-powered search, and maintains compliance with regulatory standards including HIPAA and GxP requirements.

3 investors

Quilter builds physics-driven AI that automatically generates printed circuit board (PCB) layouts, using Maxwell's equations, thermodynamics, and manufacturing constraints rather than human design patterns. It serves hardware engineering teams as an alternative to traditional EDA tools, aiming to replace manual trace routing with automated computation.

3 investors

JFrog ML (formerly Qwak) is an MLOps platform for building, deploying, managing, and monitoring AI and machine learning workflows, including generative AI, large language models, and classical ML models. The platform serves AI teams and data engineers across research, development, and production environments.

3 investors

Radar provides SDKs, APIs, and infrastructure for location tracking, geofencing, mapping, geocoding, search, and routing, used for fraud prevention, location verification, delivery tracking, and marketing across industries. Its platform serves enterprise teams as an alternative to legacy location providers or in-house builds.

3 investors

Railway builds a cloud computing platform designed to reduce deployment friction and simplify the software development lifecycle. The service targets developers and engineering teams who want to deploy applications with minimal configuration overhead.

3 investors

Raindrop provides observability and monitoring for AI agents, capturing traces of production runs including messages, tool calls, retries, and errors. The platform helps engineering teams detect silent failures, auto-fix issues, and integrate monitoring directly into Slack workflows.

3 investors

Rally is a user research CRM platform that enables teams to scale research operations, manage access control, and collaborate across departments while securing customer insights and data. It integrates with tools like Salesforce and Snowflake and caters to product managers, designers, marketers, and research operations professionals.

3 investors

Rancher is an open-source container management platform that provides enterprise-grade Kubernetes orchestration and management across data centers, clouds, and edge environments. It simplifies the deployment, management, and scaling of containerized applications for development teams and enterprises.

3 investors

RankScience is a local SEO agency that helps San Francisco Bay Area businesses improve their visibility in search results through Google Business Profile optimization, citation building, content creation, and review management. The company serves local businesses and enterprises seeking to increase organic customer acquisition in competitive Bay Area markets.

3 investors

Netlify provides a platform for building, deploying, and scaling modern web applications, including corporate sites, e-commerce platforms, and SaaS applications. The platform serves developers and enterprises with tools for composable web architecture and production deployment.

3 investors

Raven.io provides code security analysis that detects deployment issues and supports "shift left" development practices to improve production security posture.

3 investors

Flightcontrol provides deployment infrastructure for developers, bridging the gap between the simplicity of Platform-as-a-Service and the control of AWS. The platform targets developers and engineering teams building on AWS who want a better developer experience.

3 investors

Ravn provides embedded engineering squads of senior product engineers to help companies accelerate product development and AI implementation. The service caters to startups, scaleups, enterprises, and product teams seeking dedicated technical talent for core engineering, AI infrastructure, and digital transformation without permanent headcount.

3 investors

ReadMe is a developer hub that provides API documentation, monitoring, and developer engagement tools for API-first companies. The platform enables teams to create documentation, monitor APIs in production, and build communities around their developer products.

3 investors

Recce is a data validation tool that runs schema diffs, data diffs, row counts, and downstream impact analysis on pull requests so data teams can review and QA changes before merging. It serves data teams reviewing changes to data pipelines and models, including code generated by AI, and offers a UI for visualizing lineage and value changes.

3 investors

Recurse ML is an AI-powered code review tool that analyzes a team's codebase to automatically identify bugs, detect breaking changes, and suggest fixes before code is merged. It targets software development teams looking to reduce code review time, and links suggested fixes to relevant library documentation.

3 investors

Redis provides an in-memory caching layer that delivers sub-millisecond data access for real-time applications across on-premise, cloud, and hybrid environments. Its Redis Enterprise offering targets businesses needing high-availability, scalable caching with multiple caching patterns such as cache-aside, write-behind, write-through, and prefetching.

3 investors

Redpine provides AI developers and autonomous agents with access to licensed, high-quality multimodal data sourced from non-public content owners, who are compensated for opt-in AI use. It operates as a data platform serving AI companies and data partners across Europe, the Americas, and Asia.

3 investors

Refine is an open-source web application framework that helps organizations build web applications faster with fewer resources. The company develops the open-core framework and related ecosystem products.

3 investors

Relume offers an AI-powered site builder that generates sitemaps, wireframes, and style guides for marketing websites in minutes. It targets designers, developers, freelancers, and agencies, providing a library of over 1,000 components exportable to Figma, Webflow, React, and Claude Design.

3 investors

Reprise provides a demo creation platform for enterprise presales, sales, and marketing teams to build product tours, sales demos, and interactive leave-behind materials within a single integrated system.

3 investors