The 16 Largest US Funding Rounds of April 2025 – AlleyWatch

Wanting on the largest US startup funding rounds from April 2025, leveraging knowledge from CrunchBase, we’ve analyzed the month’s most vital enterprise capital offers. Past the uncooked funding numbers, this evaluation contains detailed details about every firm’s business focus, founding workforce, enterprise mannequin, and complete funding historical past to offer deeper context about these high-growth ventures.

16. Dataminr $100.0M

Spherical: VentureDescription: New York-based Dataminr is a real-time AI platform that detects early indicators of high-impact occasions and rising dangers. Based by Jeffrey Kinsey, Sam Hendel, and Theodore Bailey in 2009, Dataminr has now raised a complete of $1.1B in complete fairness funding and is backed by BoxGroup, HSBC, Alumni Ventures, Wellington Administration, and Fortress Funding Group.Buyers within the spherical: Fortress Funding Group, NightDragonIndustry: Analytics, Synthetic Intelligence (AI), Info Know-how, Threat Administration, SoftwareFounders: Jeffrey Kinsey, Sam Hendel, Theodore BaileyFounding yr: 2009Location: New YorkTotal fairness funding raised: $1.1B

16. Redpanda Knowledge $100.0M

Spherical: Sequence DDescription: San Francisco-based Redpanda Knowledge is a streaming knowledge platform that’s appropriate with Kafka, providing developer instruments and a rising ecosystem of connectors. Based by Alexander Gallego in 2019, Redpanda Knowledge has now raised a complete of $265.5M in complete fairness funding and is backed by Lightspeed Enterprise Companions, Haystack, and Google Ventures.Buyers within the spherical: Google Ventures, Lightspeed Enterprise PartnersIndustry: Analytics, Large Knowledge, Consulting, Developer Instruments, Info Know-how, SoftwareFounders: Alexander GallegoFounding yr: 2019Location: San FranciscoTotal fairness funding raised: $265.5M

16. Hammerspace $100.0M

Spherical: Sequence BDescription: San Mateo-based Hammerspace is a knowledge platform that obliterates knowledge entry delays for AI and high-performance computing. Based by David Flynn, Douglas Fallstrom, and Trond Myklebust in 2018, Hammerspace has now raised a complete of $156.7M in complete fairness funding and is backed by Altimeter Capital, ARK Funding Administration, Prosperity7 Ventures, ICU Ventures, and Pier 88 Funding Companions.Buyers within the spherical: Altimeter Capital, ARK Funding ManagementIndustry: Synthetic Intelligence (AI), Cloud Knowledge Providers, Cloud Storage, Knowledge Administration, Knowledge StorageFounders: David Flynn, Douglas Fallstrom, Trond MyklebustFounding yr: 2018Location: San MateoTotal fairness funding raised: $156.7M

16. Cyberhaven $100.0M

Spherical: Sequence DDescription: Palo Alto-based Cyberhaven is an AI-powered knowledge safety firm targeted on detecting and stopping knowledge loss, insider threats, and defending cloud knowledge. Based by Cristian Zamfir, George Candea, Radu Banabic, Vitaly Chipounov, and Volodymyr Kuznetsov in 2016, Cyberhaven has now raised a complete of $236.5M in complete fairness funding and is backed by StepStone Group, Khosla Ventures, Vertex Ventures, Wing Enterprise Capital, and Business Ventures.Buyers within the spherical: Adams Road Companions, Crane Enterprise Companions, Business Ventures, Khosla Ventures, Redpoint, Schroders, StepStone GroupIndustry: Synthetic Intelligence (AI), Cloud Safety, Cyber Safety, Info Know-how, Community Safety, SecurityFounders: Cristian Zamfir, George Candea, Radu Banabic, Vitaly Chipounov, Volodymyr KuznetsovFounding yr: 2016Location: Palo AltoTotal fairness funding raised: $236.5M

16. Stream $100.0M

Spherical: Sequence BDescription: Miami-based Stream is a residential actual property agency that gives life-style, monetary, and different providers. Based by Adam Neumann in 2022, Stream has now raised a complete of $450.0M in complete fairness funding and is backed by Andreessen Horowitz.Buyers within the spherical: Andreessen Horowitz, Khosla VenturesIndustry: Industrial Actual Property, Communities, Property Improvement, Actual Property, ResidentialFounders: Adam NeumannFounding yr: 2022Location: MiamiTotal fairness funding raised: $450.0M

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15. Nuro $106.0M

Spherical: Sequence EDescription: Mountain View-based Nuro is a robotics firm specializing within the improvement of autonomous driving applied sciences. Based by Dave Ferguson and Jiajun Zhu in 2016, Nuro has now raised a complete of $2.2B in complete fairness funding and is backed by Google, Tiger International Administration, SoftBank Imaginative and prescient Fund, Constancy, and Greylock.Buyers within the spherical: Constancy, Greylock, T. Rowe Worth, Tiger International Administration, XNIndustry: Synthetic Intelligence (AI), Autonomous Automobiles, Robotics, TransportationFounders: Dave Ferguson, Jiajun ZhuFounding yr: 2016Location: Mountain ViewTotal fairness funding raised: $2.2B

14. CAST AI $108.0M

Spherical: Sequence CDescription: North Miami Seashore-based CAST AI is the main Kubernetes automation platform that cuts AWS, Azure, and GCP prospects’ cloud prices by over 50% Based by Augustinas Stirbis, Austeja Zymantaite, Einaras von Gravrock, Laurent Gil, Leon Kuperman, Vilius Zukauskas, and Yuri Frayman in 2019, CAST AI has now raised a complete of $181.0M in complete fairness funding and is backed by Samsung NEXT, Creandum, Cota Capital, SoftBank Imaginative and prescient Fund, and G2 Enterprise Companions.Buyers within the spherical: Aglae Ventures, Cota Capital, Creandum, G2 Enterprise Companions, Hedosophia, SoftBank Imaginative and prescient Fund, Uncorrelated Ventures, Classic Funding PartnersIndustry: Synthetic Intelligence (AI), Cloud Computing, Cloud Infrastructure, Cloud Administration, Cloud Safety, Developer Platform, Developer Instruments, DevOps, SaaS, SoftwareFounders: Augustinas Stirbis, Austeja Zymantaite, Einaras von Gravrock, Laurent Gil, Leon Kuperman, Vilius Zukauskas, Yuri FraymanFounding yr: 2019Location: North Miami BeachTotal fairness funding raised: $181.0M

14. Veza $108.0M

Spherical: Sequence DDescription: Palo Alto-based Veza is a knowledge safety platform that helps customers use and share their knowledge safely. Based by Maohua Lu, Rob Whitcher, and Tarun Thakur in 2020, Veza has now raised a complete of $233.0M in complete fairness funding and is backed by Norwest Enterprise Companions, Accel, Ballistic Ventures, Bain Capital, and New Enterprise Associates.Buyers within the spherical: Accel, Atlassian Ventures, Ballistic Ventures, Blackstone Improvements Investments, Google Ventures, JP Morgan, New Enterprise Associates, Norwest Enterprise Companions, Snowflake Ventures, True Ventures, Workday VenturesIndustry: Cloud Safety, Database, Safety, SoftwareFounders: Maohua Lu, Rob Whitcher, Tarun ThakurFounding yr: 2020Location: Palo AltoTotal fairness funding raised: $233.0M

13. Electra.aero $115.0M

Spherical: Sequence BDescription: Washington-based Electra develops hybrid-electric plane for sustainable city and regional air mobility. Based by John Langford in 2020, Electra.aero has now raised a complete of $115.0M in complete fairness funding and is backed by Prysm Capital, Lockheed Martin Ventures, Statkraft Ventures, Honeywell, and Virginia Innovation Partnership Company.Buyers within the spherical: Honeywell, Lockheed Martin Ventures, Prysm Capital, Safran, Statkraft Ventures, Virginia Innovation Partnership CorporationIndustry: Aerospace, Air Transportation, Electrical VehicleFounders: John LangfordFounding yr: 2020Location: WashingtonTotal fairness funding raised: $115.0M

13. Rescale $115.0M

Spherical: Sequence DDescription: San Francisco-based Rescale is a cloud simulation platform that allows analysis scientists and engineers to construct, compute, analyze, and scale simulations. Based by Adam McKenzie and Joris Poort in 2011, Rescale has now raised a complete of $272.4M in complete fairness funding and is backed by Andreessen Horowitz, Y Combinator, NVIDIA, Gaingels, and Mitsubishi UFJ Capital.Buyers within the spherical: Utilized Ventures, Atika Capital Administration, Cloud Community Know-how, Hanwha Asset Administration Deeptech Enterprise Fund, Hitachi Ventures, Jeff Bezos, NEC Orchestrating Future Fund, NVIDIA, Paul Graham, Peter Thiel, Prosperity7 Ventures, Sam Altman, SineWave Ventures, Translink Capital, College of Michigan, Y CombinatorIndustry: Analytics, Synthetic Intelligence (AI), Enterprise Software program, Machine Studying, Simulation, Software program, Software program EngineeringFounders: Adam McKenzie, Joris PoortFounding yr: 2011Location: San FranciscoTotal fairness funding raised: $272.4M

12. Auradine $138.0M

Spherical: Sequence CDescription: Santa Clara-based Auradine supplies internet infrastructure options encompassing blockchain, synthetic intelligence, and privateness applied sciences. Based by Barun Kar and Rajiv Khemani in 2022, Auradine has now raised a complete of $289.0M in complete fairness funding and is backed by MARAHOLDING, StepStone Group, Mayfield Fund, Celesta Capital, and High Tier Capital Companions.Buyers within the spherical: GSBackers, MARAHOLDING, Maverick Silicon, Mayfield Fund, Premji Make investments, Qualcomm Ventures, Samsung Catalyst Fund, StepStone GroupIndustry: Blockchain, Info Know-how, Infrastructure, SecurityFounders: Barun Kar, Rajiv KhemaniFounding yr: 2022Location: Santa ClaraTotal fairness funding raised: $289.0M

11. Manychat $140.0M

Spherical: Sequence BDescription: Palo Alto-based Manychat is a chat advertising and marketing platform that helps companies automate conversations and interact with prospects throughout messaging channels. Based by Mikael Yang in 2015, Manychat has now raised a complete of $163.1M in complete fairness funding and is backed by Bessemer Enterprise Companions, 500 International, Summit Companions, Flint Capital, and Skywell Capital Companions.Buyers within the spherical: Summit PartnersIndustry: Advertising and marketing, Messaging, Gross sales, SoftwareFounders: Mikael YangFounding yr: 2015Location: Palo AltoTotal fairness funding raised: $163.1M

10. SandboxAQ $150.0M

Spherical: Sequence EDescription: Palo Alto-based SandboxAQ develops AI and quantum expertise options that improve biopharma, cybersecurity, and supplies science. Based by Jack Hidary in 2016, SandboxAQ has now raised a complete of $950.0M in complete fairness funding and is backed by NVIDIA, Google, BNP Paribas, S32, and US Progressive Know-how Fund.Buyers within the spherical: Past Alpha Ventures, BNP Paribas, Google, Horizon Kinetics LLC, NVIDIA, Ray DalioIndustry: Synthetic Intelligence (AI), Cyber Safety, Info Know-how, Quantum Computing, SaaSFounders: Jack HidaryFounding yr: 2016Location: Palo AltoTotal fairness funding raised: $950.0M

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9. Altruist $152.0M

Spherical: Sequence FDescription: Culver Metropolis-based Altruist is a contemporary custodian that gives a digital funding platform for monetary advisors to handle their purchasers’ investments. Based by Jason Wenk in 2018, Altruist has now raised a complete of $601.5M in complete fairness funding and is backed by Perception Companions, ICONIQ Progress, Adams Road Companions, Endeavor Catalyst, and Salesforce Ventures.Buyers within the spherical: Baillie Gifford, Carson Household Workplace, Geodesic Capital, GIC, ICONIQ Progress, Salesforce VenturesIndustry: Asset Administration, Monetary Providers, FinTechFounders: Jason WenkFounding yr: 2018Location: Culver CityTotal fairness funding raised: $601.5M

8. Electra $186.0M

Spherical: Sequence BDescription: Boulder-based Electra produces clear iron utilizing low-temperature electrochemistry powered by renewables to decarbonize and rework metal manufacturing. Based by Sandeep Nijhawan in 2020, Electra has now raised a complete of $299.3M in complete fairness funding and is backed by Nationwide Science Basis, Temasek Holdings, Lowercarbon Capital, S2G Investments, and Valor Fairness Companions.Buyers within the spherical: BHP Ventures, Breakthrough Power Ventures, Builders Imaginative and prescient, Capricorn Funding Group, Collaborative Fund, Earth Enterprise Capital, Interfer, Lowercarbon Capital, Nucor Company, Rio Tinto, Roy Hill, S2G Investments, Temasek Holdings, Toyota Tsusho, Yamato KogyoIndustry: Power, Industrial, Renewable EnergyFounders: Sandeep NijhawanFounding yr: 2020Location: BoulderTotal fairness funding raised: $299.3M

7. Apex $200.0M

Spherical: Sequence CDescription: Los Angeles-based Apex designs and manufactures satellite tv for pc buses tailor-made for numerous house missions. Based by Ian Cinnamon and Maximilian Benassi in 2022, Apex has now raised a complete of $322.0M in complete fairness funding and is backed by StepStone Group, Andreessen Horowitz, Village International, 8VC, and Protect Capital.Buyers within the spherical: 8VC, Andreessen Horowitz, Point72 Ventures, StepStone Group, Washington Harbour PartnersIndustry: Aerospace, Industrial, ManufacturingFounders: Ian Cinnamon, Maximilian BenassiFounding yr: 2022Location: Los AngelesTotal fairness funding raised: $322.0M

7. Supabase $200.0M

Spherical: Sequence DDescription: San Francisco-based Supabase is an open-source Firebase various that gives a full PostgreSQL database. Based by Anthony Wilson and Paul Copplestone in 2020, Supabase has now raised a complete of $396.1M in complete fairness funding and is backed by Y Combinator, Accel, Craft Ventures, Lightspeed Enterprise Companions, and Coatue.Buyers within the spherical: Accel, Coatue, Craft Ventures, Felicis, Guillermo Rauch, Kevin Weil, Taylor Otwell, Y CombinatorIndustry: Synthetic Intelligence (AI), Database, Developer Instruments, Info Providers, Info Know-how, SoftwareFounders: Anthony Wilson, Paul CopplestoneFounding yr: 2020Location: San FranciscoTotal fairness funding raised: $396.1M

7. Persona $200.0M

Spherical: Sequence DDescription: San Francisco-based Persona is an identification verification and administration platform that allows companies to automate and streamline their verification processes. Based by Charles Yeh and Rick Track in 2018, Persona has now raised a complete of $417.5M in complete fairness funding and is backed by Founders Fund, Coatue, First Spherical Capital, Index Ventures, and Kleiner Perkins.Buyers within the spherical: Bond, Chemistry, Coatue, First Spherical Capital, Founders Fund, Index Ventures, Ribbit CapitalIndustry: Cyber Safety, Fraud Detection, Identification Administration, Info Know-how, SaaSFounders: Charles Yeh, Rick SongFounding yr: 2018Location: San FranciscoTotal fairness funding raised: $417.5M

7. Base Energy $200.0M

Spherical: Sequence BDescription: Austin-based Base Energy is a contemporary power supplier that makes a speciality of residential backup battery programs and electrical energy plans. Based by Zachary Dell in 2023, Base Energy has now raised a complete of $268.0M in complete fairness funding and is backed by Andreessen Horowitz, Lightspeed Enterprise Companions, Thrive Capital, Valor Fairness Companions, and Altimeter Capital.Buyers within the spherical: Addition, Altimeter Capital, Andreessen Horowitz, Jackson Moses, Lightspeed Enterprise Companions, Terrain, Thrive Capital, Belief Ventures, Valor Fairness PartnersIndustry: Electrical Distribution, Power, Power Administration, Energy GridFounders: Zachary DellFounding yr: 2023Location: AustinTotal fairness funding raised: $268.0M

6. Mainspring Power $258.0M

Spherical: Sequence FDescription: Menlo Park-based Mainspring Power supplies energy technology expertise utilizing linear mills for clear power. Based by Adam Simpson, Matt Svrcek, and Shannon Miller in 2010, Mainspring Power has now raised a complete of $726.0M in complete fairness funding and is backed by Common Catalyst, Temasek Holdings, Alumni Ventures, Khosla Ventures, and Lightrock.Buyers within the spherical: Local weather Pledge Fund, DCVC, Gates Frontier Fund, Common Catalyst, Khosla Ventures, LGT group, Lightrock, M&G Investments, Marunouchi Innovation Companions, Pictet Personal Fairness Buyers S.A., Temasek HoldingsIndustry: Clear Power, Power, Oil and GasFounders: Adam Simpson, Matt Svrcek, Shannon MillerFounding yr: 2010Location: Menlo ParkTotal fairness funding raised: $726.0M

5. True Anomaly $260.0M

Spherical: Sequence CDescription: Centennial-based True Anomaly is builds house safety and resilience on the intersection of spacecraft, software program, and autonomy. Based by Even Rogers and Kyle Zakrzewski in 2022, True Anomaly has now raised a complete of $400.6M in complete fairness funding and is backed by Menlo Ventures, Accel, Rocketship.vc, Eclipse Ventures, and Riot Ventures.Buyers within the spherical: 645 Ventures, Accel, ACME Capital, Champion Hill Ventures, Eclipse Ventures, Menlo Ventures, Meritech Capital Companions, Narya Capital, Riot Ventures, Area.VCIndustry: Aerospace, Synthetic Intelligence (AI), Manufacturing, Army, Nationwide SecurityFounders: Even Rogers, Kyle ZakrzewskiFounding yr: 2022Location: CentennialTotal fairness funding raised: $400.6M

4. Runway $308.0M

Spherical: Sequence DDescription: New York-based Runway is an utilized AI analysis firm that creates AI-powered content material creation instruments for the media and leisure sectors. Based by Alejandro Matamala Ortiz, Anastasis Germanidis, and Cristobal Valenzuela Barrera in 2018, Runway has now raised a complete of $544.5M in complete fairness funding and is backed by Common Atlantic, NVIDIA, Madrona, Google, and Felicis.Buyers within the spherical: Baillie Gifford, Constancy, Common Atlantic, NVIDIA, SoftBankIndustry: Apps, Synthetic Intelligence (AI), Generative AI, Machine Studying, Software program, Video EditingFounders: Alejandro Matamala Ortiz, Anastasis Germanidis, Cristobal Valenzuela BarreraFounding yr: 2018Location: New YorkTotal fairness funding raised: $544.5M

3. Chainguard $356.0M

Spherical: Sequence DDescription: Kirkland-based Chainguard is a cloud-native improvement platform that gives low-to-zero CVE container pictures for constructing and operating purposes. Based by Dan Lorenc, Kim Lewandowski, and Ville Aikas in 2021, Chainguard has now raised a complete of $612.0M in complete fairness funding and is backed by Lightspeed Enterprise Companions, Sequoia Capital, IVP, Spark Capital, and Kleiner Perkins.Buyers within the spherical: Amplify Companions, Datadog Ventures, IVP, Kleiner Perkins, Lightspeed Enterprise Companions, MANTIS Enterprise Capital, Redpoint, Salesforce Ventures, Sequoia Capital, Spark Capital, Windproof Companions (fka Kerrest & Co.)Business: Cloud Safety, Developer Instruments, Enterprise Software program, Open Supply, SecurityFounders: Dan Lorenc, Kim Lewandowski, Ville AikasFounding yr: 2021Location: KirklandTotal fairness funding raised: $612.0M

2. Plaid $575.0M

Spherical: VentureDescription: San Francisco-based Plaid develops monetary expertise infrastructure that allows purposes to attach with customers’ financial institution accounts and monetary knowledge. Based by William Hockey and Zachary Perret in 2013, Plaid has now raised a complete of $1.3B in complete fairness funding and is backed by Franklin Templeton, Andreessen Horowitz, BlackRock, Norwest Enterprise Companions, and BoxGroup.Buyers within the spherical: BlackRock, Constancy, Franklin Templeton, New Enterprise Associates, Ribbit CapitalIndustry: Banking, Monetary Providers, FinTech, InsurTech, Wealth ManagementFounders: William Hockey, Zachary PerretFounding yr: 2013Location: San FranciscoTotal fairness funding raised: $1.3B

1. Protected Superintelligence $2.0B

Spherical: VentureDescription: Palo Alto-based Protected Superintelligence develops AI options prioritizing security in synthetic intelligence. Based by Daniel Gross, Daniel Levy, and Ilya Sutskever in 2024, Protected Superintelligence has now raised a complete of $3.0B in complete fairness funding and is backed by Andreessen Horowitz, NVIDIA, Lightspeed Enterprise Companions, Sequoia Capital, and DST International.Buyers within the spherical: Alphabet, Andreessen Horowitz, DST International, Greenoaks, Lightspeed Enterprise Companions, NVIDIAIndustry: Synthetic Intelligence (AI), Info Know-how, Web, Software program EngineeringFounders: Daniel Gross, Daniel Levy, Ilya SutskeverFounding yr: 2024Location: Palo AltoTotal fairness funding raised: $3.0B