Developer Tools Startups

Magic Lane provides navigation and mobility software solutions for businesses and developers, emphasizing privacy-first design and offline capabilities built on European infrastructure. The company serves public authorities, emergency responders, and businesses seeking alternatives to foreign-controlled mapping and navigation platforms.

1 investor

MagiCode provides an AI agent that generates, audits, and validates frontend code, then submits pull requests on behalf of development teams seeking to reduce manual coding work.

1 investor

MagnaPlay provides software that automates game translation for developers using AI and human translators, reducing the time and cost typically required to localize games for international markets.

1 investor

Magnetic is a software development and design firm that helps businesses modernize legacy systems, build custom applications, and deploy advanced technical solutions. The company serves clients across various industries through research, design, and full-stack development services.

1 investor

Magnitude is an AI coding agent optimized for open-source language models like GLM, Kimi, and DeepSeek, designed to generate and execute code with improved reliability and efficiency. The platform serves software developers and teams looking to build with open weights models at lower cost than frontier API pricing.

1 investor

Mailgun provides an API platform and infrastructure for developers to send, track, and manage transactional and marketing email at scale. The service is designed for software companies and development teams to integrate email capabilities and improve deliverability across global operations.

1 investor

Mailjet provides email delivery and marketing services, including the Email Previews feature that allows users to test how campaigns render across multiple email clients and devices before sending. The platform serves marketing and communications teams who need to ensure deliverability and proper rendering across inbox environments.

1 investor

Mainline provides IT solutions and managed IT services to customers. The company has been operating for over 30 years and emphasizes community involvement and employee family-friendly workplace practices.

1 investor

Maitai provides software that corrects AI model outputs in real-time and automatically retrains models based on their errors, enabling enterprise customers to deploy more reliable AI applications that improve over time.

1 investor

Makeasite provides a pre-configured SaaS template with integrated developer tools (Supabase, PostHog, Stripe, Google Auth) and an AI assistant to help developers build applications faster. The platform targets founders and product builders who want to validate ideas quickly without managing infrastructure setup.

1 investor

Fable provides accessibility testing and training tools for product teams to integrate disability-focused feedback into their design and development workflows. The platform helps organizations build accessible digital products proactively and at scale across Figma and Jira integrations.

1 investor

Makeswift is a visual design and publishing platform that enables teams to build and launch modular web experiences in real time without static templates, with built-in versioning and rollback capabilities.

1 investor

Makora builds a platform that automatically writes, optimizes, and deploys high-performance GPU code, using AI automation for autonomous GPU kernel generation, inference optimization, and real-time performance tuning across heterogeneous hardware. It targets teams running AI infrastructure that want to reduce compute costs and improve performance.

1 investor

Malamute is a product development and consulting firm that partners with teams to build hardware, software, and physical products from concept through production, leveraging emerging digital technologies.

1 investor

ManaMind builds AI-powered agents that automate quality assurance testing in video games by understanding and playing games like human players. The company serves game development teams seeking to accelerate testing while freeing human QA staff for creative and high-judgment work.

1 investor

Mando is a browser extension that automatically captures and documents application administrator workflows in real time, using AI to generate synchronized documentation that feeds a searchable knowledge base. The product serves enterprise application support teams and administrators who need to maintain current documentation, training materials, and operational records while protecting sensitive data through automatic PII redaction.

1 investor

Mango Network is a multi-VM omnichain blockchain infrastructure that supports both EVM and MoveVM, integrating OPStack and the Move language to provide cross-chain interoperability. It targets Web3 developers and users, focusing on high transaction throughput and low gas costs.

1 investor

Manicule helps AI agents discover and use software products by optimizing documentation, code examples, and content distribution. The company provides documentation audits, information architecture, content creation, and monitoring to ensure products are discoverable and usable by AI agents and developers.

1 investor

Manzalab is a creative and technical production studio that develops complete projects spanning design, pedagogy, scripting, game mechanics, graphic design, and programming for digital creation professionals.

1 investor

MAQUX provides an AI-powered face detection platform that processes live video data in real-time across edge and cloud environments, prioritizing speed, accuracy, and privacy protection.

1 investor

Marble provides developers with infrastructure to connect to health data sources and facilitate consumer-mediated data exchanges, handling compliance, security, and explicit user consent. The platform serves wellness apps, digital health applications, insurance, and other health-focused services.

1 investor

Marft develops machine learning models that application developers can integrate into their software; developers provide training data via web or API interface and receive compiled models in their preferred programming language.

1 investor

marimo is a modern Python notebook platform with integrated AI capabilities including code autocompletion, error auto-fixing, and agent integration for collaborative development workflows. It supports multiple LLM providers and enables coding agents to work directly within notebooks.

1 investor

Marionette is a software tool that captures and cleans motion from video for animation, using AI-powered processing that runs locally on a user's computer. The tool serves animators, studios, and agencies working in 3D animation and gaming, and exports to industry-standard formats for use with Unreal Engine, Maya, Blender, and other digital content creation platforms.

1 investor