Developer Tools Startups

Blocknative builds blockchain data infrastructure, including Gas Network and tools for transaction efficiency, mempool visibility, transaction orchestration, block building, and MEV auctions, serving protocol teams, wallet builders, and institutions. The company has since joined Deloitte and is winding down its API services and Gas Network by June 2026.

7 investors

Browserbase provides a browser automation platform that enables AI agents to interact with websites reliably, handling authentication, navigation, and complex actions to automate web-based workflows and data collection.

7 investors

Bubble is an AI-powered no-code development platform that lets users build full-stack web and native mobile applications through AI prompting and a visual editor, with built-in database, authentication, hosting, and scaling. It serves founders, freelancers, agencies, and enterprises building marketplaces, internal tools, SaaS products, and other applications without writing code.

7 investors

BuildBuddy makes tools for developers to increase productivity. Founded by former Google engineers with experience across Android, Maps, Search, and Cloud products.

7 investors

Cal.com provides scheduling software for sales teams to coordinate client meetings, demos, and discovery calls, with features like round-robin assignment, collective events, routing forms, and automated reminders. It integrates with video conferencing tools and offers branded, white-label booking pages with time zone handling and payment collection.

7 investors

Castle provides fraud detection software that blocks automated and human-driven account takeovers, fake accounts, and behavior that breaks a platform's policies. It serves online platforms and developers looking to secure user accounts.

7 investors

Cerbrec provides an orchestration platform that integrates sensor data and IoT signals across physical infrastructure operations and deploys AI agents to optimize performance in real time. The platform serves enterprise operators of complex systems including manufacturing plants and data centers.

7 investors

Certora provides formal verification and security services for smart contracts and blockchain protocols. The company serves developers and protocols in the cryptocurrency and decentralized finance space.

7 investors

Chain provides infrastructure for stablecoin payments, letting enterprises, banks, payment providers, and fintechs convert between stablecoins and fiat currencies and settle across global banking and card networks. Its non-custodial rails support minting, redemption, bank payouts, off-ramps to Visa and Mastercard, embedded wallets, reconciliation, and built-in compliance controls.

7 investors

Charm builds open-source tools and libraries for creating user interfaces and applications in the terminal, including command-line interface frameworks, markdown readers, and components for developers. The company serves software developers and infrastructure teams who need terminal-based tooling and CLI development frameworks.

7 investors

Code Metal builds AI-assisted code translation and modernization tools that use formal verification and program analysis to produce tested, standards-compliant, and portable code. It targets mission-critical industries such as aerospace, automotive, and defense, helping teams modernize legacy code, avoid chip vendor lock-in, and meet safety and compliance requirements.

7 investors

Codesphere provides a cloud platform and consulting focused on helping enterprise IT and software teams deliver projects on schedule and within budget. It works with enterprise leaders in the DACH region.

7 investors

Cognichip develops Artificial Chip Intelligence (ACI), an AI system designed to accelerate semiconductor design by reducing design effort and time-to-market for chip manufacturers. The platform aims to address the hardware development bottleneck by automating chip design workflows and making the process more accessible to the semiconductor industry.

7 investors

CometChat provides communication infrastructure for chat, voice, and video interactions embedded within applications across 163 countries. The platform serves app developers and businesses needing moderation, analytics, and notifications built into their communication stack.

7 investors

Composable Finance builds an interoperability layer for decentralized finance that enables cross-chain transactions and communication while preserving trustless, non-custodial properties. The company serves DeFi developers and users who need to move assets and liquidity across multiple blockchain ecosystems.

7 investors

Conduktor provides an operations platform for real-time data streaming that unifies access, governance, and observability for Apache Kafka and other streaming data. It serves enterprise organizations seeking to make operational data accessible and AI-ready.

7 investors

Credal provides a platform for managing AI agents with administrative visibility and team access controls. The product serves organizations deploying multiple agents.

7 investors

Crowdbotics (now CoreStory) offers AI-based tools to analyze how existing software systems work, aimed at software modernization and maintenance. The company focuses on transforming the software development lifecycle for engineering teams.

7 investors

Cube is an AI-powered financial intelligence platform for FP&A teams that integrates with Excel, Google Sheets, PowerPoint, Slack, and source systems to automate financial planning, analysis, and reporting. It serves finance teams across organizations seeking to reduce manual work and improve data accuracy.

7 investors

Datasaur provides AI data infrastructure that enables organizations to deploy AI systems while protecting sensitive data and maintaining privacy. The company serves regulated enterprises in healthcare, finance, and public services.

7 investors

Dedalus Labs provides virtual machines that boot in 250ms with Linux isolation, persistent storage, and scale-to-zero billing. The platform serves developers and infrastructure teams needing fast, isolated compute with pay-only-when-running economics.

7 investors

DeepInfra provides inference infrastructure for deploying open-source AI models at scale, built from GPU hardware to API layer. The company serves organizations seeking reliable AI inference without vendor lock-in to proprietary models.

7 investors

deepset builds tools for developing custom LLM agents and applications, and created Haystack, an open-source Python framework used as an enterprise standard for AI agents and applications. It offers enterprise products and expertise built on its open-source foundation to help organizations adopt AI.

7 investors

Dialect provides infrastructure for Web3 user experiences, offering Blinks (embedded blockchain transactions) and Alerts (onchain notifications) that integrate directly into digital platforms without redirects. The platform serves crypto applications and DeFi platforms seeking faster blockchain interaction and user engagement.

7 investors