Robotics Startup Sunday Reaches $1.15 Billion Valuation

The company aims to build household humanoid robots to assist with daily tasks.

Mar. 12, 2026 at 5:04pm by Ben Kaplan

Robotics company Sunday has raised $165 million in a Series B funding round, reaching a $1.15 billion valuation. The round was led by Coatue Management, with participation from Tiger Global, Benchmark, and Bain Capital Ventures. Sunday, founded by Tony Zhao and Cheng Chi, is developing a household humanoid robot called Memo to help with tasks like laundry and clearing the table.

Why it matters

The development of household humanoid robots has been a long-standing challenge for the robotics industry. Sunday's success in raising significant funding and reaching unicorn status highlights the growing interest and investment in this technology, which could revolutionize how people manage their homes and daily tasks.

The details

Sunday emerged from stealth late last year and already has a waitlist of 1,000 people. The company is aiming to overcome the historical challenges of building a reliable and versatile household robot by leveraging advancements in AI and robotics technologies. Memo, the company's humanoid robot, is designed to assist with a variety of household chores and tasks.

  • Sunday announced the $165 million Series B funding round on March 12, 2026.
  • The company emerged from stealth late in 2025.

The players

Sunday

A robotics company founded by Tony Zhao and Cheng Chi, aiming to build a household humanoid robot called Memo.

Coatue Management

The lead investor in Sunday's $165 million Series B funding round.

Tiger Global

An investor in Sunday's $165 million Series B funding round.

Benchmark

An investor in Sunday's $165 million Series B funding round.

Bain Capital Ventures

An investor in Sunday's $165 million Series B funding round.

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What’s next

Sunday plans to use the new funding to further develop its Memo humanoid robot and expand its waitlist of interested customers.

The takeaway

Sunday's success in raising significant funding and reaching unicorn status highlights the growing interest and investment in the development of household humanoid robots, which could revolutionize how people manage their homes and daily tasks. The company's ability to overcome historical challenges in this field could pave the way for more advanced and reliable home assistant robots in the future.