

Rayon
By Rayon
Rayon is a Paris-based SaaS company delivering a modern, browser-based collaborative design platform for the architecture, engineering, and construction (AEC) sectors. Founded in late 2021 by Bastien Dolla and Stanislas Chaillou, Rayon targets the significant opportunity to replace legacy, desktop-based CAD/BIM tools with a “multiplayer” solution that allows professionals to design, annotate, and manage floor plans collaboratively and efficiently entirely online.
Rayon is positioned as the “Figma for space design,” offering an all-in-one product for architectural drawing, presentation, and collaboration, accessible entirely through the web without installation requirements. Its focus is on streamlining the floorplan creation process for teams while enabling real-time collaboration, rapid iteration, and accessible workflows for the built environment.
Rayon’s funding history reflects strong investor confidence: it raised a pre-seed round of €1.9 million in 2022 (led by Seedcamp, Foundamental, and Kima) and a €4 million seed round in 2023–2024, co-led by Northzone and Foundamental, bringing total raised capital to approximately €5.75 million. Notable investors include Foster + Partners, 20VC, and numerous influential angels from companies such as Figma, Loom, Heroku, and ArchDaily. This funding is allocated to product development, hiring, and scaling operations.
Rayon’s platform emphasises a browser-based, multiplayer-first user experience:
Real-time collaboration: Teams can draw, annotate, and redline plans together, with shared libraries and version control.
CAD/BIM features: Includes 2D drawing, parametric tools, CAD block and symbol libraries, import/export of DWG, DXF, PDFs, object property assignment, and advanced annotation capabilities.
Flexible design tools: Supports mood boards, presentations, data-linked tables, schedule creation, and visually rich exports for print or online viewing.
Cloud-native storage and access: Projects are accessible anywhere, minimizing version and file management overhead.
Recent updates include the launch of Rayon V2, bringing:
Multi-canvases and views for complex project management
New rendering engine for large-scale performance and display quality
Extended editing commands (align, boolean, leader commands) and improved drafting tools like arc, dimension multi-mode, wall grouping, and advanced annotation modes
Rayon emphasizes empowerment, creativity, team collaboration, and accessibility in its culture. The company values fast iteration, inclusivity, and user-centric design, with a stated goal of serving 30 million+ professionals who design spaces globally. The leadership fosters an environment that encourages innovation, learning, and cross-functional engagement across architecture and technology.
Rayon’s adoption spans architects, interior designers, space planners, real estate professionals, construction managers, and even students — across Europe and expanding globally. Early customer testimonials highlight significant speed and quality improvements versus legacy CAD/BIM tools. The platform supports a community of thousands of users in varied roles and encourages collaboration and knowledge sharing among practitioners.