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Want to keep track of the largest startup funding deals in 2023 with our new curated list of $100 million-plus venture deals to U.S.-based companies? Check out The Crunchbase Megadeals Tracker.

This is a weekly feature that runs down the week鈥檚 top 10 announced funding rounds in the U.S. Check out last week鈥檚 biggest funding rounds here.

There are some , but that鈥檚 not the case in funding this week. Three of the top four rounds went to startups directly tied to AI 鈥� with the other going oddly enough to an insurance tech company. All in all, it was a slow week that ended rather quietly.

1. , $280M, logistics: founder told investors months ago his multinational investment holding giant would again be shifting from 鈥渄efense mode鈥� as it looked to be a leader in AI. He has seemed to keep his word, as just days after the successful initial public offering of SoftBank-owned U.K. chip designer 鈥� arming the firm with even more cash 鈥� SoftBank led a $280 million funding round for San Francisco-based location-mapping startup Mapbox. The startup, whose platform is used by the likes of and , is trying to bring AI to help with automated driving and safety. Founded in 2010, the company has raised more than $600 million, per .

2. (tied) , $100M, insurance: If you own a home, you know home insurance matters, as does who you get it from. Openly provides independent insurance agents with a platform that offers coverage to homeowners and streamlines processes, improves risk underwriting, and helps with claims. The Boston-based insurtech firm will be able to push that offering after raising a $100 million Series D led by . Openly says it already serves 30,000 independent agents across 21 states in the U.S. Founded in 2017, the company has raised nearly $240 million, .

2. (tied) , $100M, artificial intelligence: AI startup Pryon locked up a $100 million Series B investment led by 鈥檚 this week as the company looks to grow its market for its 鈥渒nowledge management鈥� platform. The Raleigh, North Carolina-based startup allows companies to upload internal data and information to produce answers to employee questions. It鈥檚 basically AI building an institutional knowledge base for a company. It was the new round values the company between $500 million and $750 million. Founded in 2017, the company has raised nearly $160 million, .

2. (tied) , $100M, artificial intelligence: Writer joined a handful of other San Francisco-based generative AI startups such as , and in raising a big round. The AI startup raised a $100 million round led by , and values the startup at $500 million, . Writer鈥檚 platform is designed to help businesses use large language models to generate writing and content that can be used across different departments, such as operations, product, sales, human resources, marketing and more. The company has grown revenue by 10x in the past two years with a customer base that includes , and . Writer had previously raised a $5 million seed funding in 2020 and a $21 million Series A round in 2021, according to the company.

5. , $74M, cybersecurity: It鈥檚 been a while since we鈥檝e written about industrial security 鈥� also called operational technology security. Just a few years ago, the space saw huge raises constantly, including New York-based closing a $400 million Series E back in 2021. However, while things have been quiet recently, maybe Hanover, Maryland-based Dragos鈥� raise this week will change that. The company locked up a $74 million Series D extension led by . The company originally announced its $200 million Series D at a valuation of $1.7 billion way back in October 2021, so it鈥檚 been a while. Founded in 2016, Dragos has raised approximately $440 million, according to the company.

6. , $60M, electric vehicles: Garden Grove, California-based electric chassis developer Harbinger Motors secured a $60 million Series A led by and . Founded in 2021, the company has raised nearly $85 million, .

7. , $56M, biotech: Lexington, Massachusetts-based biotech firm Hyku Biosciences launched with a $56 million seed round led by , and .

8. , $53M, database: Seattle-based data analytics platform MotherDuck raised a $52.5 million round led by 1. Founded last year, MotherDuck says it has raised $100 million.

9. (tied) Four companies tied for our last two spots with $50 million rounds: Austin, Texas-based AI security firm , Cambridge, Massachusetts-based , Latham, New York, supply chain startup and Dallas-based .

Big global deals

Mapbox鈥檚 raise is the second biggest of the week globally, beaten out by an automotive company.

• China-based , a maker of budget-friendly cars, raised a nearly $329 million venture round.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the seven-day period of Sept. 16 to Sept. 22. Although most announced rounds are represented in the database, there could be a small time lag as some rounds are reported late in the week.