Sunday

Sunday is a Mountain View robotics company building Memo, a wheeled home robot that learns chores like loading the dishwasher, folding laundry and pulling espresso shots. Founded by Stanford PhD roboticists Tony Zhao and Cheng Chi, Sunday emerged from stealth in late 2025 and reached a $1.15B valuation in March 2026 after a $165M Series B led by Coatue.