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

Large U.S. venture deals this week were led by a massive defense tech raise for space security startup . That theme continued with another two aerospace- and defense-related companies also getting major investor backing. We also saw sizable deals for startups applying AI to fintech, marketing, customer service, healthcare and developer tools. Let’s take a closer look.

1. , $600M, aerospace and defense: Centennial, Colorado-based True Anomaly raised a massive $600 million Series D led by and , with participation from a long list of other backers including , , , , and . True Anomaly develops space security and in-orbit defense systems, an area drawing increasing venture investor attention amid rising geopolitical tensions. The new round brings its total funding up to $1.1 billion, .

2. , $160M, AI and fintech: New York-based Rogo secured $160 million in Series D funding led by and joined by other investors including , , , , and . Rogo builds AI-powered tools to automate financial research and workflows. The latest financing brings its total funding raised to date to $314 million, . The deal is also the latest example of investor enthusiasm for startups targeting high-value knowledge work such as law and accounting.

3. , $150M, AI and marketing: San Francisco-based Hightouch raised $150 million in a Series D co-led by and . , , , and other investors joined. The company focuses on agentic AI-driven marketing and customer data activation. The round brings Hightouch’s total funding to date to and comes amid rising demand for AI tools embedded directly into enterprise marketing stacks.

4. , $125M, AI and customer service: New York-based Avoca brought in $125 million in a Series B led by and, with participation from other investors including , , and . Avoca develops AI agents for customer communication workflows. The new raise brings its total funding to $125.5 million, .

5. , $110M, AI and customer service: San Mateo, California-based Netomi raised $110 million in a Series C led by , with participation from and others, including individual investors , , and . The company offers AI-powered customer experience automation across channels. The new funding brings its total raised to date to $217 million, .

6. (tied) , $100M, developer tools: Palo Alto, California-based Parallel secured $100 million in a Series B led by , with additional backing from other big-name investors , and . The startup is building a suite of AI agents and developer tools to automate workflows. It has raised $260 million to date, .

6. (tied) , $100M, aerospace and defense: Sunnyvale, California-based Scout AI raised a sizable $100 million Series A led by and . A long list of other investors joined, including , and . The startup develops AI systems for aerospace and defense applications. Its large early-stage round underscores continued investor appetite for dual-use and defense-focused startups, which globally raised a record $7.7 billion in 2025, per Crunchbase data.

8. , $82M, aerospace and defense: San Diego-based Firestorm closed an $82 million Series B led by . also participated in this round, as did , , , and others. Firestone builds modular, mission-adaptable drone systems. It has raised nearly $150 million total, .

9. , $77M, health diagnostics: Cambridge, Massachusetts-based Iterative Health raised $77 million in a Series C led by and, with additional backing from , and . The company develops AI-powered diagnostic and clinical workflow tools, particularly in gastroenterology. It has raised more than $268 million since inception, according to .

10. , $75M, foundational AI: Investors continue to back next-generation foundation model startups. One of the latest is San Francisco-based AI research startup Standard Intelligence, which raised a $75 million Series A led by and . The raise comes at a $425 million pre-money valuation. Other investors in the deal include , and AI researcher . Standard AI is developing “computer-use” models designed to interact directly with software. Its approach — training on large-scale video data rather than manually annotated screenshots — aims to significantly reduce costs and improve performance.

Large non-US deals

We also saw several sizable deals for startups based outside the U.S.:

, $1.1B, foundational AI: London-based frontier lab Ineffable Intelligence raised a $1.1 billion seed round, the largest for a European startup on record. (The previous record was set just a couple of months ago, when Paris-based frontier lab raised a $1.03 billion seed round.) and led Ineffable’s seed funding.

, $300M, aerospace: China-based Volant Aerotech raised a $300 million Series C led by . The company is developing electric vertical takeoff and landing aircraft, or eVTOLs, designed to be used as taxis.

, $200M, robotics: China-based humanoid robot developer Robot Era raised a $200 million round led by , with participation from a long list of investors including and . The company is developing robots designed for industrial and service work, and follows a string of other large fundings for China-based robotics startups.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of April 25-May 1. 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.

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CEO and CRO met a decade ago in college and began building different ventures together. After a few pivots, they raised funding for New York-based Flip in 2018 with the goal of building AI that “answers and automatically resolves routine requests” for customers calling into a variety of businesses. They started with a focus on transportation companies and moved into retail in 2021 and healthcare in 2024.

AI-based customer service is a saturated space, but Schiff claims Flip’s approach is differentiated because it’s a vertical one that is very focused on just three industries.

Among vertical players, Schiff claims that Flip has an advantage because its AI “is battle-tested on more than 300 million phone calls.”

and co-led the round for Flip, which says it has raised a total of $31 million in funding. also participated in the round, alongside , , and a group of angel investors. Flip declined to reveal valuation, saying only that it was up 3x compared to its seed raise.

Year-over-year growth

Today, Flip has hundreds of enterprise customers, including , , and global transportation companies. The company has reached an eight-figure ARR, growing 3x year over year, according to Schiff.

Interestingly, the idea for Flip came when Schiff and Krut were students at . They had built a ride-hailing app called Red Route for calling taxis at Cornell, at a time when was still banned in upstate New York. It was during that experience they came up with the idea for what is today Flip.

“Customer service is one of the obvious AI categories for business, and we’re talking on a daily and weekly basis with the largest brands on the planet,” Schiff said. “Even for them, it’s not a question of ‘if.’ It’s a question of ‘when’ and ‘with whom.’”

That, he said, has created “a huge amount of noise” in the market.

Over the past year or so, a number of what Schiff described as “generic AI providers” popped up.

“The great irony of this space right now is that while all of the headlines and much of the funding has gone into these generic platforms that are trying to be the AI everything for everyone, across every industry, every channel, every use case. In reality, most of the actual traction, most of the successful customer stories, are working with vendors like Flip that are going very deep into one or a couple of specific industries,” Schiff told Crunchbase News in an interview.

Another differentiator, in his view, is that few companies have developed deep expertise with AI telephone customer service.

“Most people are doing it inside of chatbots or auto email responders,” he said. “We really look at the quality of the experience. It doesn’t matter how nice it is to talk to — it’s still just another bot that’s in the way of a customer trying to solve their problem.”

When it comes to the revenue model, Flip doesn’t charge an upfront cost or require a long-term commitment. Rather, it charges per automated call — a usage model it has implemented since its early days.

‘A vertical approach yields the best results’

, managing partner at , believes that customer service is one of the few huge markets where generative AI has produced tangible results for enterprise customers and a better experience for users.

“Based on our 30+ years of investing in software, we believe a vertical approach yields the best results,” he wrote via email. “Flip has taken a different approach than many others by focusing on a couple of verticals and going really deep … While there are plenty of competitors making noise, some are going after different parts of the market, and Flip has quietly, up to now, launched more live customer deployments, at scale, than anyone.”

, co-founder and managing director at , said he has spent nearly two decades in and around call centers and voice technologies and has “never seen a more compelling ROI for customers” than what Flip offers.

He added: “The founding team is exceptional, customer feedback has been tremendous, and the potential for Flip to become a $1 billion business is clear.”

Smerklo said he is also impressed with the company’s capital-efficient approach to growth.

“Several other companies that have raised tremendously more money have to rely on ‘forward engineering’ to get their product to work for customers,” he said. “Flip’s solution works, doesn’t require a massive investment from customers, and solves real, salient business issues.”

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