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.

Physical tech is back, at least judging by this week’s largest U.S. funding deals. The biggest of all was a $1.5 billion corporate round for a medical device company that develops implants and treatment systems for musculoskeletal disorders. It was followed by an enormous Series A round, backed by a bevy of big-name investors, for , a 1-year-old artificial intelligence startup that says it’s developing personalized AI devices. Along with the usual heavy dose of AI, this week’s list also includes large deals for aerospace and defense, fintech, and retail technology. Let’s dive in.

1. $1.5B, healthcare: MiRus raised a massive $1.5 billion corporate round led by as strategic investors continue betting on next-generation orthopedic and spinal technologies. The Marietta, Georgia-based company has now raised $1.6 billion to date, . The deal comes with a 34% equity stake for Boston Scientific.

2. , $700M, artificial intelligence: AI startup Hark landed a huge $700 million Series A led by, with participation from a of investors including chip giants , , and , as well as ,, , 1�����Ի� . The San Jose, California-based company it’s building “advanced personalized intelligence and next-generation hardware” and plans to release some kind of product later this summer.

3. , $355M, AI infrastructure and developer tools: New York-based Modal Labs raised $355 million in a Series C round led by and , with participation from and . The company provides serverless cloud computing tools and GPU access for running AI models and testing AI-generated code. Its latest round is at a $4.65 billion valuation. CEO ​told Reuters that Modal’s ARR has soared to $300 million, up from about $60 million in September, as enterprise AI coding becomes widespread.

4. (tied) , $300M, artificial intelligence: Frontier lab Decart raised $300 million in a round led by that reportedly values it at nearly $4 billion. The deal also received backing from including venture firms and, AI researcher and corporate investors Nvidia, and . The startup, based in San Francisco and Tel Aviv, develops generative AI models and infrastructure, and has now raised roughly $456 million to date as investors continue pouring capital into foundational AI technologies.

4. (tied) , $300M, aerospace and defense: El Segundo, California-based Amca raised $300 million in a Series B led by, alongside investors including and. The company focuses on aerospace manufacturing and supply-chain technologies, an area drawing increased venture interest amid renewed defense-tech spending. Amca has raised $376.5 million overall, . Its latest round reportedly comes at a $1 billion-plus valuation.

6. , $250M, search and generative AI: AI search startup Exa secured $250 million at a $2.2 billion valuation in a Series C round led by Andreessen Horowitz. Based in San Francisco, the company develops AI-native search infrastructure designed for agents and large language model applications. The latest raise brings Exa’s total funding to $357 million and comes as competition intensifies around AI retrieval and search tools.

7. , $230M, edge computing and AI infrastructure: Armada raised $230 million in fresh funding at a $2.2 billion valuation. The Series B deal was led by , and, with participation from other investors including and . The San Francisco-based company develops edge computing and AI infrastructure systems designed for remote and industrial environments. The round brings its total funding to $469 million, .

8. , $200M, fintech: Mercury raised $200 million at a $5.2 billion valuation in a Series D round led by . Returning backers Andreessen Horowitz, , , , and also participated. The San Francisco-based company provides banking and financial workflow software for companies and has now raised about $657 million to date. Its latest round comes amid a broader uptick in fintech funding, including strong investor interest in digital banking platforms serving startups and businesses.

9. , $170M, retail technology: New York-based Radar secured $170 million in funding at a $1 billion valuation. The Series B round was led by and, with participating. The company develops AI technology for brick-and-mortar stores that uses overhead RFID sensors, software and analytics to give retailers real-time inventory visibility with item-level tracking accuracy. The company said its platform is deployed in more than 1,400 stores for customers including and . It has raised nearly $310 million to date, .

10. , $150M, wealth management: Farther raised a $150 million Series D led by as investors continue backing platforms modernizing financial advisory services. The San Francisco-based company provides technology-enabled wealth management tools and has raised approximately $268 million to date. Farther didn’t reveal its valuation with the latest raise, only that it is “now a unicorn.”

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of May 18-22. 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.

Illustration:

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.

Illustration:

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.

While no billion-dollar rounds led this week’s list, we nonetheless saw a variety of startups in industries ranging from semiconductors to aerospace to biotech raise sizable rounds. The week’s biggest deal was $400 million for SiFive, a semiconductor startup challenging incumbent with chip designs built on an open rather than proprietary standard.

1. , $400M, semiconductors: San Mateo, California-based semiconductor startup SiFive raised a $400 million Series G round led by . SiFive makes the blueprints used by companies such as to develop their own internal chip designs, on an open standard called RISC-V. CEO Reuters he expects the raise to be SiFive’s last funding round before an IPO, though didn’t say when an offering would take place.

2. , $200M, aviation: Hermeus, an El Segundo, California-based startup developing autonomous military aircraft, raised $200 million in equity in a -led round. The company, which is developing what it says will be the fastest unmanned defense aircraft, also raised $150 million in debt as part of the round, which pushes its valuation to $1 billion. Other investors in the deal include , and

3. $137M, biotechnology: San Diego-based Sidewinder, a biotech startup developing cancer drugs to target difficult-to-treat tumors, raised a $137 million Series B led by and . The company is developing next-generation cancer drugs called antibody-drug conjugates, or ADCs, which are designed to act like “guided missiles” by using engineered antibodies to deliver toxic payloads directly into tumor cells. The company said its new funding will be used to push its lead drug candidates into clinical trials.

4. , $125M, AI infrastructure: Palo Alto, California-based Aria Networks raised $125 million in a -led Series A funding round. The company develops an AI-driven networking platform that monitors, analyzes and optimizes data center performance.

5. , $111.7M, aerospace: Starfish Space, a Seattle-based startup developing and manufacturing autonomous space vehicles that perform in-orbit, satellite servicing missions, raised $111.7 million. The Series B round was led by , and . Starfish’s spacecraft dock to satellites already in orbit to service and reposition them. They can also remove defunct satellites and debris from space.

6. (tied) , $100M, biotechnology: Cambridge, Massachusetts-based Stipple Bio raised a $100 million Series A round to advance its precision cancer therapies. The round was led by , and . Stipple aims to develop highly targeted cancer treatments that selectively attack cancer cells while minimizing damage to healthy tissue.

6. (tied) , $100M, health insurance: led the $100 million Series E for Chapter, a New York-based startup offering a Medicare navigation platform that provides advisory services for seniors seeking health coverage. Other investors include ​​, and 1.

8. , $85M, fintech: Modus, a Philadelphia-based startup, raised $85 million in a -led seed and Series A round. The startup describes itself as a tech‑enabled audit platform that acquires CPA firms and equips them with AI‑driven audit tools to deliver higher‑quality audits. and also participated in the deal.

9. , $80M, medical devices: and led the $80 million Series C for Menlo Park, California-based Endovascular Engineering, also called E2, which has developed a device called Hēlo for the treatment of venous thromboembolism, or VTE. The company secured clearance for Hēlo in December.

10. , $80M, biotechnology: Boston-based Life Sciences, which aims to develop drugs to promote longevity and find treatments for age-related diseases, says it raised $80 million in Series D funding. The company says it will use the funding to advance human trials of its cellular rejuvenation therapy, called ER-100, which aims to make older, damaged cells act younger again. Investors in the round were not disclosed. The company has previously been backed by , , , and.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of April 4-10. 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.

Illustration:

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.

This week featured a lot of funding deals with a lot of zeroes on the end. Generative AI powerhouse , of course, boasted the most zeroes with its $30 billion Series G, the second-largest venture funding round of all time. Other big fundraisers included robotics startup , fusion innovator , and space tech unicorn .

1. , $30B, Generative AI: Anthropic in a massive Series G funding round that values the San Francisco-based generative AI company at $380 billion post-money. The financing marks the largest venture funding deal of 2026 so far and the second-largest of all time, per Crunchbase data. and led the raise, which was also “co-led” by , , , and , according to the company.

2. , $520M, humanoid robots: AI-powered robotics company Apptronik added $520 million in new financing in an extension of its $415 million Series A raise in February 2025, The investment brings the total round to over $935 million for the Austin-based company.

3. , $450M, fusion energy: Livermore, California-based fusion power startup Inertia Enterprises announced that it secured $450 million in Series A funding. led the round for the 2-year-old company, joined by , and other backers.

4. , $350M, space tech: Axiom Space, a startup that is building a successor to the International Space Station and developing spacesuits for a moon mission, closed on $350 million in new financing. and led the round for the Houston-based company.

5. , $315M, AI: Runway, an AI research and technology startup, picked up $315 million in a Series E round. led the financing, which set a $5.3 billion valuation for the New York-based company, up from $3.3 billion last April.

6. , $210M, mental health: Talkiatry, a provider of in-network psychiatry services to health systems and employers, picked up $210 million in Series D funding, led by . The round brings total funding to date for the New York-based company to more than $400 million.

7. , $130M, healthcare: Redwood City, California-based Solace Health, a digital platform that connects patients with expert healthcare advocates, raised $130 million in Series C funding. led the financing, which set a valuation of over $1 billion for the 4-year-old company.

8. , $118M, healthcare: Garner Health, a digital platform that helps patients find healthcare providers, raised $118 million in Series D financing. led the round for the New York-based company.

9. (tied) , $100M, AI simulation: Palo Alto, California-based Simile, a startup focused on applying AI to create simulated environments and simulation tools with AI agents, raised $100 million in Series A funding led by .

9. (tied) , $100M, dog longevity: Loyal, a startup focused on drugs to extend healthy lifespans in senior dogs, raised $100 million in Series C funding that it says will provide the capital required to move from late-stage development to market readiness. Venture fund led the financing for the 7-year-old, San Francisco-based company.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of Feb. 7-13. 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.

Illustration:

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.

Startup investors offered fresh evidence once again that there is plenty of capital available for favored companies. Autonomous driving unicorn and robotaxi operator led the pack this week, with $16 billion in fresh funding at a $126 billion valuation. Other large round recipients were also overwhelmingly AI companies, with additional activity in aviation and space tech.

1. , $16B, autonomous driving: Waymo, the autonomous driving company spun out of nearly 10 years ago, raised $16 billion in new funding at a $126 billion post-money valuation. , and l led the round, along with a long list of other investors. The Mountain View, California-based company it plans to enter 20 more cities this year, including Tokyo and London.

2. , $1B, AI processors: Cerebras Systems, a developer of large, fast AI processors, closed a $1 billion Series H round. led the financing, which set a post-money valuation of approximately $23 billion for the Sunnyvale, California-based company.

3. , $500M, AI audio: New York-based ElevenLabs, a developer of AI audio technology, secured a $500 million Series D round led by . The round sets an $11 billion valuation for ElevenLabs, more than tripling from a year ago. The company also reported over $330 million in annual recurring revenue last year.

4. , $300M, aviation: Skyryse, an aviation hardware and software company developing an operating system for flight as well as aircraft called the Skyryse One, landed over $300 million in Series C funding at a valuation over $1 billion. and led the financing for the 10-year-old, El Segundo, California-based company.

5. (tied) , $270M, construction robotics: Bedrock Robotics, a startup developing robotics technology for the construction industry, raised over $270 million in Series B funding. and Valor Atreides AI Fund led the financing, which reportedly set a valuation around $1.75 billion for the roughly 2-year-old, San Francisco-based company.

5. (tied) , $270M, space tech: Austin-based CesiumAstro, a provider of connectivity hardware and software for the space and defense industries, secured $270 million in Series C equity financing and $200 million in debt funding. led the equity portion while and provided the debt.

7. , $230M, AI infrastructure: Positron, a developer of energy-efficient AI inference hardware, picked up $230 million in Series B funding at a post-money valuation of more than $1 billion. , and co-led the financing for the Reno, Nevada-based company.

8. , $225M, enterprise AI: Fundamental, a developer of AI models to build predictions from enterprise data, emerged from stealth and announced it raised a $225 million Series A led by . The San Francisco-based company, founded in 2024, also had a previously undisclosed $30 million seed round.

9. , $175M, weather technology: Boston-based Tomorrow.io, developer of an AI-native weather satellite constellation, closed on $175 million in equity financing led by and . The company says it has fully deployed its first 13- satellite constellation.

10. , $150M, AI research lab: AI research lab Goodfire raised $150 million in Series B funding at a $1.25 billion valuation. B Capital led the financing for the San Francisco-based startup.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of Jan. 31-Feb. 6. 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.

Illustration:

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.

The pace of big funding rounds continued to hold up at brisk levels this past week, led by a $1.4 billion financing for “robot brain” developer . More big rounds went to startups in sectors including AI chips, brain-computer interfaces, defense tech, biotech and airplanes, among others.

1. , $1.4B, robotics: Skild AI, a robotics company building an “omni-bodied” brain to operate any robot for any task, announced it raised $1.4 billion, tripling its valuation to over $14 billion. led the Pittsburgh-based startup’s latest financing, which comes just over seven months after it raised a at a $4.5 billion valuation.

2. , $500M, AI and semiconductors: Etched.ai, a startup working on chips for AI superintelligence, reportedly $500 million in new funding. led the financing, which was said to set a $5 billion valuation for the Silicon Valley-based company.

3. , $252M, brain-computer interfaces: Merge Labs, a -founded startup based in San Francisco, which is working on brain-computer interfaces that interact with the brain at high bandwidth and integrate with advanced AI, reportedly locked up a $252 million seed round. According to reports, was the largest backer.

4. , $250M, biotech: San Diego-based Mirador Therapeutics, a precision medicine startup developing therapies for immune-mediated inflammatory and fibrotic diseases, it closed on $250 million in Series B funding. The company said the round brings total capital raised to more than $650 million since it launched in March 2024.

5. (tied) , $200M, defense tech: Defense tech startup Onebrief has raised another $200 million and reportedly acquired a small battle simulation company, . and led the Series D funding for Honolulu-based Onebrief, which makes AI-driven collaborative and planning software used for military operations.

5. (tied) , $200M, media: , an Ethereum treasury company, that it made a $200 million equity investment into Beast Industries — also known as MrBeast — the Greenville, South Carolina-based entertainment and consumer products company founded by creator .

7. , $175M, aerospace: Long Beach, California-based JetZero, a developer of planes with much higher fuel efficiency and lower carbon emissions than existing commercial airliners, picked up $175 million in Series B financing led by . Founded in 2020, JetZero says it is looking to enter commercial service in the early 2030s.

8. , $143M, voice AI: Deepgram, an API platform for voice AI, secured $130 million in Series C funding led by at a $1.3 billion valuation. San Francisco-based Deepgram also announced that it acquired , an AI voice platform for restaurants and drive-thru operators.

9. , $136M, defense tech: Colorado Springs, Colorado-based Defense Unicorns, a provider of software delivery for national security mission systems, locked up $136 million in a Series B round led by .

10. (tied) , $120M, robotics: Mytra, a developer of industrial robotics technology for warehouse operations, raised $120 million in a Series C round led by . Founded in 2022, Brisbane, California-based Mytra has raised close to $200 million to date, .

10. (tied) , $120M, AI for manufacturers: Boston-based Tulip Interfaces, a developer of AI-enabled tools for manufacturers to digitize processes and improve production, says it secured $120 million in Series D funding backed by .

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of Jan. 10-16. 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.

Illustration: