Inside Rainbow Crops: The Belgian Agtech Startup Using AI and Gene Editing to Engineer Climate-Resilient Super Crops

No single lead investor was publicly named. PINC’s participation marked its third investment of 2025 and aligned with Paulig’s broader sustainability strategy, with the Finnish group noting that corn—one of its top three raw materials—is the first proof-of-concept crop for Rainbow Crops' platform .

The $7 Million Gates Foundation Grant

In March 2026, Rainbow Crops received a $7 million grant from the Bill & Melinda Gates Foundation . Crucially, this is a grant, not an equity investment . The purpose is to accelerate the development of heat- and drought-resistant crop varieties, specifically corn (maize), sorghum, and rice, for smallholder farmers in food-insecure regions most affected by climate change . The funding is directed toward advancing the company’s proprietary Trait Foundry™ platform .

The Trait Foundry™ Platform: AI Meets Multiplex Gene Editing

At the core of Rainbow Crops is its proprietary end-to-end technology, Trait Foundry™, designed to systematically engineer complex, multi-gene agronomic traits that conventional breeding cannot easily address . The platform integrates four key technological pillars:

• AI-Driven Rational Design: Sophisticated AI models, trained on comprehensive plant “omics” data, are used to predict optimal genetic targets. Instead of a trial-and-error approach, the AI narrows vast biological complexity to identify the specific genetic elements associated with traits like drought tolerance and yield .
• Multiplex Genome Editing: Leveraging its SCRIPT technology, Trait Foundry™ can deliver up to 50 guide RNAs in a single construct. This enables the simultaneous editing of numerous genes, a crucial capability for engineering complex polygenic traits .
• Precision Breeding: The platform combines edited genetic traits into elite genetic backgrounds using AI-guided breeding strategies, ensuring that new crop varieties are not only resilient but also high-performing .
• Automated High-Throughput Phenotyping: Edited plant populations are screened using automated, data-driven phenotyping. This allows the platform to rapidly validate whether genetic modifications translate into real-world performance improvements, such as better germination or yield stability under extreme climatic conditions, and feeds data back into the AI models to refine future predictions .

The platform's capabilities have already been demonstrated in a proof-of-concept study, where researchers successfully edited 60 growth-repressor genes in corn to identify combinations that improved biomass and yield .

Mission and Origin: A Deep-Tech European Spin-Off

Rainbow Crops launched in 2025 as a spin-off from the VIB-UGent Center for Plant Systems Biology in Ghent, Belgium, a leading European research hub . The company’s foundational research was supported by a grant from the European Research Council (ERC), and it continues to leverage VIB’s advanced greenhouse and phenotyping infrastructure .

The company’s stated mission is to accelerate the development of climate-resilient, high-performing crop varieties by engineering complex traits that have long been beyond the reach of traditional breeding methods . This mission quickly gained industry recognition when Rainbow Crops won the Start-Up Success pitch competition at World Agri-Tech London 2025 .