Developer Tools Startups

Reface is an app studio that combines AI with creative talent to build and scale mobile applications across content creation, entertainment, and health & fitness verticals. The company operates a proprietary technology platform enabling rapid product development and launch.

4 investors

Reflex is a platform for building and deploying enterprise applications in Python, combining framework, infrastructure, and data connectivity in a single unified system. It enables teams to develop, deploy, and manage production applications without fragmented tooling or multiple specialized roles.

4 investors

Reloadly provides an API and no-code tools for businesses to send digital payouts and rewards such as gift cards, money cards, and mobile top-ups, which can be embedded into web and mobile apps. It serves companies ranging from startups to Fortune 500s that want to power reward and payout programs.

4 investors

Render provides cloud infrastructure and hosting services for software teams to deploy applications at any scale, from prototypes to large distributed systems, with a focus on reliability and uptime.

4 investors

Replicate builds tools that make AI models accessible to software engineers through simple APIs and abstractions, similar to standard software libraries. The platform enables developers to use, deploy, and customize machine learning models as easily as working with conventional software packages.

4 investors

Replo is a no-code platform for building, testing, and launching high-converting landing pages and sales funnels for e-commerce and SaaS businesses. The platform uses AI to generate pages from ad creative or images and integrates with Shopify, ad networks, and other business tools to optimize conversions.

4 investors

RevenueCat provides revenue and subscription analytics infrastructure for mobile and web applications, helping teams centralize reporting and monetization tracking across platforms.

4 investors

RSS3 builds products and open infrastructure for keeping public web information portable and readable, including Folo (a unified reading timeline), RSSHub (an open-source layer that converts sources into RSS feeds), and the $RSS3 token that links its data, applications, and ecosystem. It serves readers, developers, and contributors focused on open feeds and RSS-based reading workflows.

4 investors

Runtime Verification provides high-assurance cybersecurity consulting based on formal methods for teams building software that cannot fail. It also develops verification tools for smart contract and Web3 development, including formal verification for Foundry, Solidity, and Soroban contracts, along with fuzzing, symbolic execution, and debugging tools.

4 investors

Runway provides a platform for managing and orchestrating mobile app releases. The service helps mobile development teams streamline the process of shipping apps to millions of users.

4 investors

Rutter provides a Unified API that enables B2B SaaS companies to integrate business data and financial system connections into their products. The platform serves fintech companies and SMB-focused tools seeking to add robust accounting and commerce integrations to their workflow.

4 investors

Safepay is a Payment System Operator and Provider Service Provider licensed by Pakistan's State Bank that enables Pakistani businesses to accept payments and integrate into the global economy. The platform serves merchants across Pakistan.

4 investors

ScaleOps provides application context-aware automation for horizontal pod scaling in Kubernetes, dynamically managing replica counts and predicting traffic to scale ahead of demand. It integrates with existing HPA and KEDA definitions and is aimed at DevOps and platform teams looking to cut cloud costs while maintaining performance and reliability.

4 investors

Seam provides an API platform that enables developers and businesses to connect applications with IoT devices and orchestrate their use. The platform abstracts device protocols and integrations to simplify physical device connectivity.

4 investors

4 investors

Seldon provides a Kubernetes-native MLOps and LLMOps platform for deploying, scaling, and governing machine learning and AI models in production across any cloud or on-premise environment. The platform combines real-time inference serving, model monitoring, drift detection, explainability, and governance tools for VP Engineering, Chief AI Officers, and AI Platform Architects.

4 investors

Semgrep develops a code scanning platform that detects security vulnerabilities and code issues across multiple programming languages, integrated with CI/CD tools like GitHub and GitLab. The solution helps development teams automate secure code practices at scale.

4 investors

Sentry is an application monitoring and error-tracking platform that developers integrate via SDKs to catch, root-cause, and fix errors and performance issues across development and production. It offers AI-based debugging and code review through its Seer agent, along with integrations for tools like GitHub, Slack, Jira, and Linear.

4 investors

Sieve creates high-quality multimodal datasets and training environments for frontier AI labs developing generative media, robotics, and agentic systems. The company combines exabyte-scale infrastructure with novel data collection and processing techniques to serve AI research teams and enterprise customers.

4 investors

NFX is a venture capital firm that builds software products for startup founders, several of which are offered for free. It positions itself as a builder of tools to help founders.

4 investors

Silimate builds AI-powered EDA software that accelerates chip design workflows by combining fast computation engines, machine learning models, and user-friendly interfaces. The platform serves SoC and IP companies in hardware design by functioning as a copilot to help chip designers understand design tradeoffs and iterate faster.

4 investors

Kyndryl Cloud Uplift (formerly Skytap) migrates IBM Power workloads (AIX, IBM i) and x86 systems to Microsoft Azure without rewriting or refactoring applications, supporting data center exit, disaster recovery, and incremental modernization. It serves enterprises running legacy mission-critical systems, offering consumption-based Azure billing, high availability, and virtual IT labs for training and proofs of concept.

4 investors

SmartBear provides a platform for software testing, design, and observability that helps development teams ensure application integrity throughout the development lifecycle. The company serves software development teams at scale.

4 investors

Socket is a developer-first platform that detects and blocks malicious packages in real time to protect organizations from software supply chain attacks. The platform secures the open source ecosystem used across technology, media, healthcare, and finance industries.

4 investors