Developer Tools Startups

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

Clever Cloud is a sovereign, fully managed cloud platform offering PaaS, DBaaS, IAM, and AI services, with Git-based automated deployment, managed hosting, high availability, and compliance features (ISO 27001, HDS, GDPR). It serves developers, software publishers, public sector organizations, industrial companies, and healthcare businesses, operating its own datacenters in France.

1 investor

CleverCards provides APIs, SDKs, and developer tools for platforms to issue and manage payment cards, with capabilities including card issuance, payments processing, KYC, and ledger management. The platform serves enterprises and platforms building white-labeled payment solutions.

1 investor

Clickpass offers a single sign-on service that lets users access multiple websites with one password.

1 investor

WhoDB is a platform that lets teams define their organizational entities, relationships, and decision rules, then automatically evaluates those decisions against incoming operational data to produce actions and recommendations. The system provides full transparency and auditability of data models and decision logic without requiring custom dashboards or ad-hoc queries.

1 investor

Cline is an open source AI coding agent runtime that developers use inside their IDE, terminal, or embedded via an SDK to plan and execute coordinated multi-file code changes, run terminal commands, and automate workflows in CI pipelines. It works with any major model provider (Claude, GPT, Gemini, local Ollama/LM Studio, or OpenAI-compatible endpoints) using a bring-your-own-key approach.

1 investor

AccuKnox provides an Application Security Posture Management (ASPM) platform that integrates vulnerability management, static and dynamic application security testing, software composition analysis, and infrastructure-as-code scanning to identify and prioritize security risks across the software development lifecycle for development and security teams.

1 investor

Cloud Conformity, now part of Trend Micro's Vision One / Cloud One platform, provides cloud security posture management with automated monitoring and auto-remediation of cloud infrastructure. It maintains a public knowledge base of over 1,400 configuration best practices covering AWS, Microsoft Azure, Google Cloud, Alibaba Cloud, and Oracle Cloud Infrastructure for security, cost, performance, and reliability.

1 investor

Cloud ex Machina provides an AI-powered platform called Dex that automatically maps cloud infrastructure, investigates cost and compliance issues, and generates remediation scripts and pull requests for engineering teams. The platform serves DevOps teams, engineers, and FinOps/security leaders who need to manage cloud costs and compliance across their infrastructure.

1 investor

CloudForecast is a cloud cost monitoring tool that connects to AWS or Azure and sends daily and weekly spend reports to Slack, Teams, and email, flagging spend shifts and their causes. It serves engineering and infrastructure teams without dedicated FinOps owners, and includes a ZeroWaste feature that identifies idle or over-provisioned resources for savings.

1 investor

Cloudglue provides an API that extracts structured data and enables AI reasoning across video content at scale. Developers use the platform to turn video libraries into queryable context for applications like chatbots, RAG systems, and data analysis.

1 investor

Cloudinary provides visual asset management and optimization tools for e-commerce teams, using AI-driven automation to enhance product images and videos for faster loading and improved conversion rates across sales channels.

1 investor

Cloudoor provides a Kubernetes API gateway and internal developer platform that builds, deploys, and delivers application code to cloud environments with instant rollback, real-time user metrics, and monitoring. It targets development teams and organizations that need fast scaling and reliable deployments.

1 investor

Cloudpipes is a UK company providing a workflow automation and integration service for cloud applications. Its platform links SaaS tools with custom or packaged systems running in a customer's own data center, and configures these integrations without requiring code.

1 investor

CloudShare provides SaaS solutions for enterprise software development and product management. The page does not specify the company's products, market, or geographic focus.

1 investor

CloudThread helps engineering teams optimize and manage cloud computing costs as a core operational metric. The company focuses on bringing visibility and efficiency to cloud infrastructure spending.

1 investor

Clovyr offers one-click deployment tools for app publishers, providing a browser-based UI for users to run apps and a custom VSCode environment for contributing developers. It serves developers, app publishers, and end users looking to deploy and access applications.

1 investor

A project management platform designed for startup teams that facilitates collaboration between engineering, product, and design functions. It provides issue tracking, kanban boards, backlogs, and integrations with developer and communication tools to accelerate execution from idea to launch.

1 investor

CM First develops code analysis software for organizations modernizing legacy mainframe and COBOL systems, helping reduce project costs by up to 80%. The company serves government agencies and enterprises managing decades-old business-critical applications that need enhancement or rewriting.

1 investor

An AI platform that generates full-stack applications from natural language descriptions, enabling developers to build scalable apps while retaining ownership of the underlying code.

1 investor

CO2Stats provides website owners with analytics on the electricity consumption and carbon emissions generated by their site traffic, then automatically purchases renewable energy certificates to offset those emissions on a monthly basis.

1 investor

Coanda is a research and engineering firm that brings together scientists, engineers, and technologists to solve technical challenges for clients across various industries.

1 investor

Coasty provides AI agents that automate healthcare revenue cycle tasks like eligibility verification, prior authorization, claim submission, and denial management by performing repetitive work across EHRs, practice management systems, and payer portals through screen interaction. The platform is designed for healthcare billing teams and operates within customer environments with full audit trails and approval gates for payer-facing submissions.

1 investor