Four Growers

Four Growers is an agricultural robotics company focused on transforming commercial greenhouse operations through advanced automation technology. Founded with the mission of making healthy, affordable, and locally grown produce more accessible, the company develops robotic harvesting and plant analytics solutions specifically designed for greenhouse growers of tomatoes, peppers, and cucumbers. By reducing the production costs associated with manual labor and traditional crop management, Four Growers enables greenhouse operators to improve efficiency, consistency, and profitability at scale.

The company's flagship product, the GR-100, is an autonomous tomato harvesting robot engineered for deployment within commercial greenhouse environments. The GR-100 features a robotic arm calibrated with four stereo cameras, enabling it to detect and harvest tomatoes with a reported 98% ripe-fruit precision. The system operates continuously, 24 hours a day, 7 days a week, achieving a harvesting speed of approximately 43 kilograms per hour for 12-gram fruit. In a single harvesting session, the robot is capable of filling up to 24 crates, carrying approximately 246 kilograms of tomatoes.

A key differentiator of the GR-100 is its proprietary motion planning algorithm, which identifies optimal, collision-free paths 34 times faster than standard motion planning approaches. This enables the robot to harvest tomatoes up to five times faster than competing systems while minimizing plant damage — a critical concern in high-value greenhouse environments. Two filed patents protect the core technology underlying the GR-100 platform.

Beyond harvesting, the GR-100 integrates a patented packing cart system featuring a weighted elevator mechanism that allows the robot to transport filled crates of loose-pick snacking tomatoes throughout continuous harvesting sessions. The system also performs quality checks on harvested fruit, adding a layer of post-harvest consistency management.

Four Growers supplements its harvesting hardware with a suite of digital tools accessible through a centralized remote monitoring dashboard. Operators can track all deployed GR-100 units from a single interface, with full operational visibility available from any location at any time. The platform also includes yield heatmapping capabilities powered by onboard imagers and sensors, providing granular insights down to a three-meter resolution on how growing environments and practices affect fruit output. Additionally, AI-driven yield forecasting functionality — currently in beta — allows growers to anticipate ripening timelines in the coming weeks, improving inventory planning and pricing leverage.

The GR-100 was designed for compatibility with the existing infrastructure of most commercial greenhouses, requiring little to no facility modification for deployment. This design philosophy lowers the barrier to adoption for greenhouse operators looking to modernize their operations without significant capital investment in facility upgrades.

Four Growers targets commercial greenhouse growers seeking to automate labor-intensive harvesting processes, reduce operational costs, and gain deeper data-driven visibility into crop performance. The company is actively collaborating with greenhouse growers to continue refining its technology and expanding its capabilities, including upcoming plant analytics features.