Overview
Sunday, based in Stanford, United States, has raised $35M in a Seed round on Nov 19, 2025, with participation from Benchmark. The company say hello to Memo. The round will be used to accelerate product development, expand the team, and scale go-to-market operations.
Operating in the robotics engineering sector, Sunday is positioned to capitalize on growing demand for innovative solutions in this space. The company was founded in 2024 by Tony Z. Zhao. Tony Z. brings deep domain expertise and a track record of execution that attracted investor confidence in this round. With fresh capital, the company is expected to invest heavily in R&D and talent acquisition, signaling a period of aggressive growth ahead.
Market Outlook
This funding positions Sunday as one to watch in the robotics engineering landscape. As the company scales, it will likely become an increasingly attractive partner — and customer — for B2B vendors looking to sell into well-funded, growth-stage companies. The post-raise window of 60-90 days is typically when startups are most receptive to new tools, services, and partnerships.
Why contact Sunday now
Sunday just closed $35M in Seed funding — which means they're actively scaling their team, upgrading their tech stack, and looking for vendors who can help them move fast. Companies at this stage typically make purchasing decisions within 60-90 days of closing a round. If you sell to robotics engineering companies, this is your window to reach out before competitors do.
Founders & Contacts
Investors
Company Facts
| Company | Sunday |
| Amount Raised | $35M |
| Funding Round | Seed |
| Date Raised | Nov 19, 2025 |
| Founded | 2024 |
| Industry | Robotics Engineering |
| Founders | Tony Z. Zhao |
| HQ Location | Stanford, United States |
Get Verified Founder Emails
Access verified email addresses and contact details for Sunday's founders and thousands of other funded startups.
Start Free Trial