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AI-powered prototyping tool for product management, enabling teams to build interactive product concepts rapidly for new features.
Based in San Francisco, California, Alloy develops an artificial intelligence prototyping platform that enables product managers, designers, and founders to rapidly build, visualize, and test interactive product concepts. The enterprise software application allows users to capture existing product interfaces and generate new feature prototypes without requiring immediate engineering resources. To streamline product development workflows, the system integrates directly with over thirty external productivity and management applications, including recognizable platforms like Linear, Notion, and Jira Product Discovery. The platform primarily serves technology enterprises, with product leaders from 42% of the Forbes Cloud 100 currently registered as users on the system. Operating with a lean core team of five employees, the company has secured $15.3 million in total venture funding across two investment rounds. Alloy was established in 2023 by founders Christian Iacullo and Simon Kubica.
Alloy has raised $287.0M across 11 funding rounds.
Key people at Alloy.
Alloy was founded in 2023 by Laura Spiekerman (Cofounder) and Simon Kubica (Founder) and Christian Iacullo (Founder).
Alloy has raised $287.0M in total across 11 funding rounds.
Alloy is an AI-powered prototyping tool designed specifically for product managers, founders, and designers to create lifelike, interactive prototypes that look exactly like their real product. It enables users to capture their existing product UI directly from the browser and quickly build feature ideas using natural language chat, integrating seamlessly with over 30 popular product management tools such as Linear, Notion, and Jira Product Discovery. Alloy addresses the common problem of off-brand, generic prototypes by ensuring fidelity to the actual product design system, significantly speeding up the prototyping process and improving stakeholder alignment. It serves professional product teams at leading companies including 42% of the Forbes Cloud 100 and 17% of the Fortune 500, with notable users like HubSpot, Canva, and SeatGeek, demonstrating strong growth momentum in 2025 as the fastest-growing AI prototyping tool[1][2][3][4].
Alloy was co-founded by Simon Kubica and Christian Iacullo, both of whom bring extensive experience from major tech companies—Simon from Canva and Christian from Atlassian. Their firsthand experience with the challenges of product planning and prototyping at scale inspired them to create a tool that empowers product managers to move beyond planning into actual execution with AI assistance. Initially, their focus was on workflow planning and prioritization with their earlier product, Index, but they pivoted to build Alloy as a dedicated AI prototyping tool when they recognized the potential for AI to help PMs *do* the work rather than just plan it. Early traction was rapid, fueled by the tool’s ability to produce prototypes that maintain brand fidelity and integrate deeply with existing PM workflows[1][3][4].
Alloy rides the wave of AI-driven automation and enhanced productivity in product management, addressing a critical gap where traditional prototyping tools fail to deliver brand-consistent, high-fidelity outputs quickly. The timing is crucial as AI capabilities mature, allowing PMs to prototype directly from their existing products rather than starting from scratch or generic templates. Market forces such as the increasing complexity of digital products, demand for faster iteration cycles, and the need for better stakeholder alignment favor Alloy’s approach. By integrating deeply into existing PM ecosystems and workflows, Alloy influences the broader product development landscape by enabling product teams to validate ideas faster, reduce design bottlenecks, and improve cross-functional collaboration[1][3][4].
Looking ahead, Alloy is positioned to expand its influence as AI continues to reshape product development workflows. Future trends likely to shape its journey include deeper AI integration for automated feature generation, enhanced export capabilities (e.g., to Figma), and broader platform support beyond web apps. As product teams increasingly demand tools that reduce friction between ideation and delivery, Alloy’s focus on fidelity, speed, and integration will likely drive further adoption across enterprises and startups alike. Its ability to empower PMs with “superpowers” to ship clarity, not just slides, suggests Alloy could become a foundational tool in the AI-driven product management toolkit[1][2][3][5].
Key people at Alloy.
Alloy was founded in 2023 by Laura Spiekerman (Cofounder) and Simon Kubica (Founder) and Christian Iacullo (Founder).
Alloy has raised $287.0M in total across 11 funding rounds.
Alloy's investors include Tom Humphrey, Jackie Vullinghs, Olivia Sioud (Grivas), Fiona Leng, Air Street Capital, Bain Capital Ventures, Blackbird Ventures Australia, Bond, Brand Foundry Ventures, Greylock, Menlo Ventures, Mischief Venture Capital.
Alloy has raised $287.0M across 11 funding rounds. Most recently, it raised $3.0M Pre-Seed in September 2025.
