Hundreds of well-funded robotics startups are working on self-driving cars, self-piloting drones and shelf-diving warehouse robots. One lesser-known area that’s beginning to draw the attention of investors: autonomous lawn mowers.

Tiger Global led an investment in Electric Sheep Robotics, which makes a device for large-scale, autonomous commercial mowers.

From evolving technology to solving common concerns, autonomous mowing companies are aiming to transform the green industry.