Developer Tools Startups

Chert provides an API platform that makes iMessage programmable at scale for business workflows. It enables teams to send, receive, route, and monitor iMessage conversations with features like native blue-bubble messaging, typing indicators, file attachments, and fallback to SMS/RCS, serving go-to-market and customer-facing teams.

1 investor

ChewyLogic develops and consults on assistive-technology products for individuals with disabilities, including augmentative and alternative communication solutions and cognitive support tools. The company pairs clinical expertise with product engineering to create accessible technology for communication, learning, and connection.

1 investor

Thechi.app provides cloud-browser infrastructure with SDKs and APIs that let AI agents browse, click, and complete web tasks using natural language, including on authenticated and virtualized sites. It targets developers building AI agent applications for use cases such as automated research, live product demos, and repeatable web workflows.

1 investor

ChipFlow provides curated open-source EDA tools, mixed-signal design workflows and engineering support for integrated circuit (IC) design. It serves SMEs, OEMs, foundries and partners with training, toolchain setup, IC design services and first-silicon support for exploration, prototyping and tapeout.

1 investor

Chipp is a platform for building autonomous companies—teams of AI agents that work together to handle real business operations across multiple channels and roles. The platform enables businesses to deploy agents for customer support, scheduling, outreach, and other functions without requiring dedicated engineering teams.

1 investor

Project Chiron provides active, experimental math education for students. The company was founded by Oxford math graduates who believe math learning should be hands-on and exploratory rather than lecture-based.

1 investor

Turso provides a distributed SQLite database platform. It serves developers and applications requiring scalable relational database infrastructure.

1 investor

Chordio builds PX-bench, a benchmark for measuring product experience created by AI coding agents. The platform enables teams developing AI agents to evaluate and improve how their agents' outputs function and appear to end users.

1 investor

CHOZEN MEDIA provides consulting and workforce training services to help enterprises build internal AI capabilities and accelerate adoption. The company delivers organizational assessments, cohort-based training programs, implementation workshops, and ongoing advisory support focused on practical AI integration across business functions.

1 investor

Chromatic is a cloud service that tests user interfaces by scanning every possible UI state across browsers to catch visual and functional bugs, with reviewer assignment and discussion resolution for team sign-off. The company also maintains Storybook, an open source tool for developing UI components, and serves software development teams.

1 investor

Chromatic is a platform built on Storybook that runs visual, interaction, and accessibility tests to catch UI issues before release and enforce UI standards across teams. It centralizes components, stories, tests, and documentation in a shared workspace and integrates with CI/CD pipelines for development teams shipping web UI.

1 investor

Chromia is a relational blockchain platform that enables developers to build decentralized applications with database-like functionality, combining the structured data capabilities of traditional databases with blockchain decentralization and security.

1 investor

Chronicle uses production data to generate test scenarios and evaluate AI agents before deployment, helping businesses verify agent readiness and reduce critical failures. The platform serves teams building and deploying AI agents.

1 investor

ChronoLogic builds a decentralized scheduling protocol for the Ethereum DeFi ecosystem, enabling transaction scheduling, automated trading on DEXs like Uniswap, and conditional execution via an off-chain network of incentivized execution agents called TimeNodes. It integrates with wallets such as MyEtherWallet and MyCrypto and works in partnership with the Ethereum Alarm Clock.

1 investor

Causal Dynamics Lab is an AI research lab building products that enable machines to reason through cause and effect relationships and learn from experience without forgetting. The company focuses on production software as its initial domain, developing AI systems that provide interpretable reasoning, continuous learning, and efficient inference.

1 investor

Circus is a software company founded in 2016 that builds technology products for creative professionals. The company is based in Vancouver, Canada and emphasizes product innovation and attention to detail.

1 investor

Ciroos is an AI-powered site reliability engineering (SRE) platform that performs context-aware root cause analysis across cloud, infrastructure, applications, and third-party dependencies to reduce incident duration and operational toil. It is built for enterprise engineering and SRE teams operating in complex, fragmented environments, working alongside existing observability tools rather than replacing them.

1 investor

Clad Labs provides a multi-agent orchestration platform that coordinates Claude Code, Cursor, and Codex agents for parallel coding tasks. The platform enables developers to spin up teams of AI agents, isolate work, and merge changes while tracking coding activity and productivity metrics.

1 investor

ClariMed provides human-centered medical device design, development, human factors research, quality assurance, and regulatory services for MedTech and pharmaceutical companies. It offers end-to-end services from strategy through regulatory approval across US and UK markets.

1 investor

Clarus provides AI-powered workflow agents for private market allocators, automating underwriting and reporting for fund commitments, direct deals, and secondary transactions. The platform unifies data from multiple sources—capital accounts, fund reports, financial statements—into a single auditable system that traces every extracted number to its source.

1 investor

Clawvisor provides access control and governance infrastructure for AI agents in production, enabling task-based verification, scoping, and logging while maintaining agent performance. The platform is built for teams running agents that require security controls and audit trails.

1 investor

Clearline is an AI-native operating system for dealerships that centralizes customer interactions across sales and service, automating responses and follow-ups. It consolidates fragmented customer communication and revenue tracking into a single platform to improve dealership operations.

1 investor

Clerk provides authentication and user management for developers, offering drop-in UI components and SDKs for sign-in, profile and organization management, multi-tenancy, and subscription billing. It targets B2C and B2B SaaS applications built on modern web and mobile frameworks.

1 investor

Clerk automates invoice creation from Jira and Tempo worklogs, letting users send invoices by email and export them to QuickBooks or Xero. It also lets businesses manage products or services and attach them to invoices or quotes.

1 investor