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Humanoid robotics maker Sunday reaches $1.15B valuation to build household robots

Sunday is on a quest to build a household humanoid robot called Memo that helps with tasks like laundry and clearing the table. The company emerged from stealth late last year and already has 1,000 people on its waitlist.

TechnologyBy David ParkMarch 12, 20262 min read

Last updated: April 1, 2026, 5:24 AM

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Humanoid robotics maker Sunday reaches $1.15B valuation to build household robots

10:04 AM PDT · March 12, 2026

Robotics company Sunday has raised a new funding round that has valued the company at unicorn status, meaning over $1 billion, it announced on Thursday.

Sunday says it has raised $165 million at a $1.15 billion valuation in a Series B round led by Coatue Management. Other investors in the round include Tiger Global, Benchmark, and Bain Capital Ventures.

The company emerged from stealth late last year and already has 1,000 people on its waitlist, Bloomberg reports.

Sunday, founded by Tony Zhao and Cheng Chi, is on a quest to build a household humanoid robot called Memo that helps with tasks like laundry and clearing the table.

Experts have been trying for decades to build a robot like this — a type of Rosie from “The Jetsons” — but have come up short time and again, in large part because of a lack of training data to teach robots how to reliably grasp objects of differing weights, textures, and fragility (e.g., towels versus wineglasses). As AI technology continues to advance, a new slew of robotic technologies is hitting the market, hoping to once again bring the humanoid helper to life.

San Francisco, CA | October 13-15, 2026

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David Park

Technology Editor

David Park covers the tech industry, startups, and digital innovation for the Journal American. Based in Silicon Valley for over a decade, he has tracked the rise of major tech companies and emerging platforms from their earliest stages. He holds a degree in Computer Science from Stanford University.

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