Developer Tools Startups

HumanSignal provides data labeling, model evaluation, and quality workflow tools for AI teams, including managed annotation data services and Label Studio Enterprise for customizable labeling interfaces with cloud or on-prem deployment. It is the company behind Label Studio, an open source data labeling tool used by AI practitioners.

4 investors

Hygraph is a GraphQL-native headless CMS platform that enables teams to create, deliver, and distribute content across multiple channels. It serves development teams building digital products who need flexible, API-driven content management without the limitations of traditional CMS systems.

4 investors

Hyperline offers a CPQ (configure, price, quote) product that connects with its billing engine, letting sales teams create quotes, capture signatures, and move signed deals into billing from within their CRM. It unifies sales-led and product-led revenue motions by keeping quotes, contracts, and subscriptions in sync across the revenue stack.

4 investors

IDERA provides data management and productivity tools for technical teams managing complex data environments across on-premises, cloud, and hybrid platforms. The company serves enterprise customers seeking to minimize risk and optimize data lifecycle management.

4 investors

Inceptron provides a platform for deploying, optimizing, and scaling AI models in production, offering compiler-driven performance optimization and inference infrastructure for machine learning teams.

4 investors

Inferact develops inference infrastructure for large language models, building on the open-source vLLM engine to make model serving cheaper and faster. The company serves AI teams deploying models at scale, from research labs to hyperscalers.

4 investors

Inkeep provides a platform for building and deploying AI agents and automations through both code and visual interfaces, serving developers and non-technical users who need to automate customer support, sales, and internal workflows. The platform includes tools for knowledge base integration, application connectors, and performance monitoring.

4 investors

IronCore Labs provides application-layer encryption tools for engineering teams building AI applications and multi-tenant SaaS on sensitive data. The company offers Cloaked AI for encrypted vector embeddings, SaaS Shield for key management, and developer SDKs to keep data encrypted at rest and in use while maintaining functionality.

4 investors

Jamf provides Apple device management and endpoint protection software for Mac and mobile devices. The platform enables IT and security teams across organizations to manage and protect devices, data, and applications while maintaining the Apple user experience.

4 investors

Jellyfish provides software engineering intelligence and team management tools for engineering organizations. The platform helps teams improve productivity, manage workflows, and communicate business impact through data-driven insights.

4 investors

Jina AI is a search AI company that provides embeddings, rerankers, readers, and small language models for building search applications with relevant, multimodal, and multilingual results. Its tools serve businesses and developers, including LLM providers, tech companies, finance and consulting firms, e-commerce retailers, and media publishers.

4 investors

JITX develops software to automate hardware and circuit board design for electronics companies. The platform uses algorithms for physical design automation to help teams design better electronics.

4 investors

Jscrambler provides client-side security software that monitors and controls third-party and AI-powered scripts running in the browser to prevent supply chain attacks, data leaks, and code tampering. It targets enterprises needing runtime protection and audit-ready compliance with standards such as PCI DSS v4, GDPR, CCPA, and the EU AI Act.

4 investors

Kraftful helps product teams gather user feedback and build products that users want through iterative, user-centered development practices.

4 investors

Lago is an open-source billing platform that enables companies to build and manage their billing infrastructure with transparency and control. The platform serves tech companies that need flexible billing solutions without the limitations of third-party black-box systems.

4 investors

LaunchNotes is a platform that connects product feedback, roadmap, and release communication so stakeholders know what is shipping and why it matters. It is used by product teams to communicate product releases to customers and internal go-to-market teams.

4 investors

LayerLens provides evaluation and benchmarking tools for AI models, offering verified performance data across public and private benchmarks. Its two products, Stratix and Stratix Premium, let users compare models, run evaluations on their own benchmarks and private models, and define custom scorers and LLM judges with auditable results.

4 investors

Localize provides a translation management platform with AI-powered content management, automated delivery, and multilingual capabilities for application developers and business users. The platform helps companies manage translated content across their applications and websites.

4 investors

Logz.io operates a platform for observability and monitoring, serving technology companies and enterprises that need infrastructure insights and operational intelligence.

4 investors

Mage is a data workflow platform where users describe an outcome and the system builds and runs AI-generated workflows that connect sources, apply checks, and deliver validated data to dashboards, products, APIs, and agents. It offers monitoring, replay, and automatic recovery, and can run as fully managed cloud or be deployed into a customer's own infrastructure.

4 investors

Magic develops frontier code models and AI systems to automate software engineering and AI research. The company combines large-scale pre-training, domain-specific reinforcement learning, and inference-time compute toward building advanced AI capabilities.

4 investors

Magic provides an API for embedded wallet creation, transaction signing, and onchain automation, serving developers and applications building on blockchain infrastructure. The platform enables user onboarding via email, social, passkeys, or SSO with wallet provisioning and transaction execution capabilities.

4 investors

Marblism provides AI employees that handle specialized business tasks like SEO, executive assistance, lead generation, and community management for small businesses. The platform combines AI automation with human oversight to serve 40,000 SMBs seeking affordable alternatives to hiring full-time staff.

4 investors

Meibel is an AI orchestration platform that ingests and structures data (charts, tables, images, text, and cross-document references), lets teams build agentic workflows that use their data as tools, and scores every output across 14 confidence dimensions. It targets teams building applications on LLMs, offering an alternative to DIY RAG pipelines, MCP gateways, and separate observability tools.

4 investors