Developer Tools Startups

Hologram is an open platform for discovering, using, and sharing self-verifying AI models, skills, and artifacts, where each file is checked against its address. It offers a registry of 500+ models including Llama, Qwen, DeepSeek, Mistral, and others.

1 investor

Holonic (Holonic Technologies) develops CodeIntent, a deterministic semantic AI platform for understanding and converting large-scale, undocumented legacy code into modernizable systems. It targets government and enterprise clients, including defense programs, that require provable, auditable, and traceable code transformations.

1 investor

Holoplan develops augmented reality applications that integrate with enterprise tools like JIRA to create 3D spatial overlays for project visualization and collaboration. The company serves manufacturing, aerospace, and advanced engineering firms seeking to improve on-site workflows and decision-making in safety-critical environments.

1 investor

Honcho is a memory and reasoning system for AI agents that stores conversation history and performs continuous reasoning to provide contextual information efficiently. It integrates with multiple AI platforms and agents to enable stateful behavior across interactions with reduced token consumption.

1 investor

Hoonify develops software that makes high-performance computing and machine learning accessible to teams without specialized expertise. The company provides a validated stack and tools designed for organizations needing sovereign deployment options.

1 investor

Hopper provides a centralized, enterprise-grade source of open-source packages that are patched and secured, using AI and function-level analysis to deliver secure versions of libraries without breaking changes. It targets enterprises seeking to manage open-source software (OSS) security risk in application development.

1 investor

Hops is an AI-assisted platform for building custom admin panels and back-office tools, letting teams assemble internal dashboards from 30+ components connected to databases and REST APIs without heavy development. It targets companies that need admin/operations tooling but lack dedicated engineering resources, spanning industries such as e-commerce, education, gaming, and HR.

1 investor

Hostersi is an official Google Cloud Platform partner that provides cloud strategy, migration, infrastructure deployment, and managed services for enterprises using GCP. The company offers cloud consulting, system optimization, security implementation, and 24/7 technical support.

1 investor

HTML5 UP offers responsive HTML5 site templates that users can download and use, with a paid tier providing access to 80+ templates plus extras and support.

1 investor

HTTPie builds API testing tools for developers, offering both a terminal client and a graphical Web & Desktop application. Its products are used by engineers for testing and interacting with APIs.

1 investor

Hud provides production intelligence for AI coding agents and engineers, giving visibility into runtime behavior across production environments so code can be shipped more reliably. Built by engineers with expertise in runtime internals and OS reverse engineering, it runs across large-scale production services with low overhead.

1 investor

Hudu is a documentation and knowledge management platform that captures, standardizes, and centralizes IT infrastructure documentation, passwords, and organizational knowledge. It serves IT teams and technicians who need to maintain consistent documentation and reduce time spent on routine tasks.

1 investor

Hue provides a testing and evaluation platform for AI agents, letting developers capture tasks from real usage and replay them in stateful, simulated environments with mock APIs and MCPs. It offers observability, eval suggestions, agent replays, and scoring to compare performance across agent versions.

1 investor

Huey Games is a video game development studio. The page lists its team but does not describe specific products or markets.

1 investor

Humanoid built an API that routes tasks and instructions to human workers on behalf of software. Developers could use it to incorporate human judgment into applications at points where automated processing was insufficient.

1 investor

Hunter2 provides interactive application-security training for engineering teams, with labs where developers practice exploiting and patching real web apps in their own tech stack. It serves software developers in the appsec education space.

1 investor

Husarnet provides a platform for connecting devices with networking services, including hosting and a marketplace for microservices. The platform serves developers and organizations requiring secure device connectivity and additional integration services.

1 investor

HVAKR Team is a cloud-based platform for HVAC design that provides tools for engineering, analysis, and project delivery. It serves HVAC professionals and engineers.

1 investor

Hydra OSS offers Argus, a monitoring service that continuously watches business-critical flows (such as checkout, authentication, conversion funnels, and integrations like Stripe, Meta Ads, and Supabase) to catch silent regressions that quietly break revenue before they reach users. It targets early-stage founders and startups, providing manual flow mapping, continuous scanning, and fast Slack-based support without long-term contracts.

1 investor

Hypermile develops AI-powered cruise control software for trucks that reduces fuel consumption by up to 11% and CO₂ emissions through predictive models and real-time optimization. The system integrates with existing truck manufacturer systems to improve efficiency and driver comfort for fleet operators.

1 investor

Hyperpad offers a no-code tool for iPad that lets non-technical users build media-rich interactive apps and mobile games and publish them to the App Store as native apps. It targets creators without programming experience.

1 investor

Hyperpilot offers a platform of three AI engines that take a controls-engineering project from high-level requirements through executable test suites to production-grade control software. Its software-synthesis engine is built on an algorithm-discovery foundation model rather than an LLM, targeting engineers who build safety-critical control systems.

1 investor

HyperPV develops GPU-accelerated software tools for semiconductor chip design and verification, offering performance faster than CPU-based solutions with foundry-comparable accuracy. Its products are customizable via a Python API and scale across hybrid data center and cloud environments.

1 investor

HyperTest is a code review tool that uses runtime execution traces (via OpenTelemetry) to detect production-breaking bugs such as API contract breaks, race conditions, N+1 queries, and auth bypasses. It integrates with GitHub/GitLab repositories to replay baseline traces against feature branches and report high-signal findings per pull request for software engineering teams.

1 investor