Armed with some knowledge from our pals at CrunchBase, I broke down the biggest US startup funding rounds from December 2025. I’ve included some further data akin to trade, firm description, spherical sort, founders, and complete fairness funding raised to additional the evaluation.
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10. HawkEye 360 $150.0M
Spherical: Sequence E
Description: Herndon-based HawkEye 360 detects, geolocates, and characterizes varied RF indicators utilizing its satellite tv for pc constellation in low Earth orbit. Based by Charles Clancy, Chris DeMay, John Serafini, and Robert McGwier in 2015, HawkEye 360 has now raised a complete of $522.3M in complete fairness funding and is backed by Perception Companions, Alumni Ventures, BlackRock, Lockheed Martin Ventures, and Adage Capital Administration.
Traders within the spherical: Andreessen Horowitz, BlackRock, Blackstone Group, Coatue, Constancy, GIC, Infinitum, Perception Companions, J.P. Morgan Asset Administration, MGX, New Enterprise Associates, Ontario Lecturers’ Pension Plan, Robinhood Ventures, Temasek Holdings, Thrive Capital, T. Rowe Value, Winslow Capital
Business: Aerospace, Analytics, Synthetic Intelligence (AI), Navigation, Satellite tv for pc Communication, Wi-fi
Founders: Charles Clancy, Chris DeMay, John Serafini, Robert McGwier
Founding yr: 2015
Complete fairness funding raised: $522.3M
9. Harness $200.0M
Spherical: Sequence E
Description: San Francisco-based Harness offers a software program supply platform that helps engineering groups construct, deploy, and function functions via a set of instruments. Based by Jyoti Bansal and Rishi Singh in 2017, Harness has now raised a complete of $570.0M in complete fairness funding and is backed by Menlo Ventures, Gaingels, IVP, Norwest, and Battery Ventures.
Traders within the spherical: Carrick Capital Companions, Kohlberg Kravis Roberts, Sixth Road Progress, Ten Eleven Ventures
Business: Synthetic Intelligence (AI), Developer Instruments, DevOps, Productiveness Instruments, SaaS
Founders: Jyoti Bansal, Rishi Singh
Founding yr: 2017
Complete fairness funding raised: $570.0M
8. Tebra $250.0M
Spherical: Enterprise
Description: Corona Del Mar-based Tebra present unbiased healthcare practices with digital instruments and help to thrive in a brand new period of healthcare. Based by Dan Rodrigues, Luke Kervin, and Travis Schneider in 2021, Tebra has now raised a complete of $387.0M in complete fairness funding and is backed by Vivo Capital, JP Morgan, StepStone Group, Transformation Capital, and Hildred Capital.
Traders within the spherical: Altimeter Capital, Andreessen Horowitz, Avenir Group, BlueYard Capital, Cantos, Champion Hill Ventures, First In, Common Catalyst, Interlagos Capital, Lavrock Ventures, Lightspeed Enterprise Companions, Silent Ventures, Area.VC, Valor Fairness Companions
Business: Digital Well being Document (EHR), Well being Care, Medical
Founders: Dan Rodrigues, Luke Kervin, Travis Schneider
Founding yr: 2021
Complete fairness funding raised: $387.0M
8. K2 Area $250.0M
Spherical: Sequence C
Description: Torrance-based K2 Area develops high-power satellite tv for pc platforms for orbital missions, utilizing vertically built-in {hardware} and manufacturing processes. Based by Karan Kunjur and Neel Kunjur in 2022, K2 Area has now raised a complete of $425.5M in complete fairness funding and is backed by Lightspeed Enterprise Companions, Redpoint, Altimeter Capital, Alpine Area Ventures, and First Spherical Capital.
Traders within the spherical: Accel, Atlassian Ventures, CapitalG, Creandum, Databricks Ventures, DST International, EQT Progress, Evantic Capital, HubSpot Ventures, Khosla Ventures, Kinship Ventures, Menlo Ventures, NVentures, Salesforce Ventures, T.Capital
Business: Aerospace, Equipment Manufacturing, Manufacturing, Area Journey
Founders: Karan Kunjur, Neel Kunjur
Founding yr: 2022
Complete fairness funding raised: $425.5M
7. Increase Supersonic $300.0M
Spherical: Sequence B
Description: Centennial-based Increase Supersonic is a business airplane producer that builds supersonic airliners designed for pace, security, and sustainability. Based by Blake Scholl, Joe Wilding, and Joshua Krall in 2014, Increase Supersonic has now raised a complete of $647.5M in complete fairness funding and is backed by Bessemer Enterprise Companions, Caffeinated Capital, 8VC, Y Combinator, and Karman Ventures.
Traders within the spherical: Altimeter Capital, ARK Funding Administration, Bessemer Enterprise Companions, Darsana Capital Companions, Robinhood Ventures, Y Combinator
Business: Aerospace, Air Transportation, Manufacturing
Founders: Blake Scholl, Joe Wilding, Joshua Krall
Founding yr: 2014
Complete fairness funding raised: $647.5M
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7. Radiant $300.0M
Spherical: Sequence D
Description: El Segundo-based Radiant develops transportable nuclear microreactors designed to generate electrical energy and warmth in a compact, factory-built type. Based by Bob Urberger and Doug Bernauer in 2019, Radiant has now raised a complete of $518.8M in complete fairness funding and is backed by Andreessen Horowitz, Tribe Capital, Draper Associates, Alumni Ventures, and Union Sq. Ventures.
Traders within the spherical: Align Ventures, Andreessen Horowitz, ARK Enterprise Fund, Increase VC, Chevron Expertise Ventures, DCVC, Draper Associates, Founders Fund, Associates & Household Capital, Big Ventures, IQT, Sahin Boydas, StepStone Group, Union Sq. Ventures, Washington Harbour Companions
Business: Clear Power, Power, Power Effectivity, Renewable Power
Founders: Bob Urberger, Doug Bernauer
Founding yr: 2019
Complete fairness funding raised: $518.8M
7. Eon $300.0M
Spherical: Sequence D
Description: New York-based Eon is a cloud backup posture administration platform that gives instantaneous entry to all backed-up cloud knowledge. Based by Gonen Stein, Ofir Ehrlich, and Ron Kimchi in 2024, Eon has now raised a complete of $497.0M in complete fairness funding and is backed by Lightspeed Enterprise Companions, Sequoia Capital, Bond, Affinity Companions, and Greenoaks.
Traders within the spherical: Center15 Capital, NightDragon, Principia Progress, Trajectory Ventures
Business: Cloud Information Providers, Cloud Administration, Information Administration, SaaS
Founders: Gonen Stein, Ofir Ehrlich, Ron Kimchi
Founding yr: 2024
Complete fairness funding raised: $497.0M
6. Lovable $330.0M
Spherical: Sequence B
Description: Dover-based Lovable offers an AI-driven platform enabling customers to generate and deploy net functions and web sites from pure language prompts. Based by Anton Osika and Fabian Hedin in 2023, Lovable has now raised a complete of $552.5M in complete fairness funding and is backed by Menlo Ventures, Accel, Khosla Ventures, Creandum, and Antler.
Traders within the spherical: Hildred Capital, HLM Enterprise Companions, Toba Capital, Transformation Capital
Business: Synthetic Intelligence (AI), Developer Platform, Developer Instruments, Software program
Founders: Anton Osika, Fabian Hedin
Founding yr: 2023
Complete fairness funding raised: $552.5M
5. Castelion $350.0M
Spherical: Sequence B
Description: Torrance-based Castelion is a protection tech firm that applies fashionable {hardware} improvement and manufacturing processes to nationwide safety challenges. Based by Andrew Kreitz, Bryon Hargis, and Sean Pitt in 2022, Castelion has now raised a complete of $439.6M in complete fairness funding and is backed by Andreessen Horowitz, Common Catalyst, Lightspeed Enterprise Companions, Valor Fairness Companions, and Cantos.
Traders within the spherical: Affinity Companions, Bond, Gil Capital, Greenoaks, Lightspeed Enterprise Companions, Omri Casspi, Sequoia Capital, Swish Ventures, Vine Ventures
Business: Aerospace, Authorities, Manufacturing, Army, Nationwide Safety
Founders: Andrew Kreitz, Bryon Hargis, Sean Pitt
Founding yr: 2022
Complete fairness funding raised: $439.6M
5. Erebor $350.0M
Spherical: Enterprise
Description: Columbus-based Erebor is a nationally chartered financial institution designed for the brand new innovation financial system. Based by Owen Rapaport in 2025, Erebor has now raised a complete of $350.0M in complete fairness funding and is backed by Lux Capital, 8VC, Founders Fund, and Haun Ventures.
Traders within the spherical: AllianceBernstein, Atacama Ventures, B Capital, Breakthrough Power Ventures, CalSTRS, Capricorn Funding Group, Carbon Fairness, Centaurus Capital, Local weather First, Congruent Ventures, CPP Investments, DCVC, Devon Power Company, Echelon, Impress, Google, Impression Science Ventures, JB Straubel, Kris Singh, Liberty Mutual Investments, Marunouchi Innovation Companions, Mercuria, Mitsubishi Heavy Industries, Mitsui & Co, Sabanci Local weather Applied sciences
Business: Banking, Blockchain, Finance, Monetary Providers, FinTech
Founders: Owen Rapaport
Founding yr: 2025
Complete fairness funding raised: $350.0M
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4. Fervo Power $462.0M
Spherical: Sequence E
Description: Houston-based Fervo Power develops and operates clear vitality know-how to generate carbon-free vitality from geothermal programs. Based by Jack Norbeck and Tim Latimer in 2017, Fervo Power has now raised a complete of $1.1B in complete fairness funding and is backed by B Capital, DCVC, Mercuria, Impress Local weather Options, and Impress.
Traders within the spherical: Goldman Sachs
Business: Power, Power Effectivity, Power Administration, Nuclear, Renewable Power
Founders: Jack Norbeck, Tim Latimer
Founding yr: 2017
Complete fairness funding raised: $1.1B
3. Unconventional AI $475.0M
Spherical: Seed
Description: San Francisco-based Unconventional AI rethinks laptop foundations to optimize vitality effectivity for AI. Based by Naveen Rao, Michael Carbin, Sara Achour,MeeLan Lee in 2025, Unconventional AI has now raised a complete of $475.0M in complete fairness funding and is backed by Andreessen Horowitz, Sequoia Capital, Lightspeed Enterprise Companions, Databricks, and Lux Capital.
Traders within the spherical: Alpine Area Ventures, Altimeter Capital, Hedosophia, Lightspeed Enterprise Companions, Redpoint, T. Rowe Value
Business: Synthetic Intelligence (AI), Enterprise Intelligence, Software program
Founders: Naveen Rao, Michael Carbin, Sara Achour,MeeLan Lee
Founding yr: 2025
Complete fairness funding raised: $475.0M
2. Saviynt $700.0M
Spherical: Sequence B
Description: El Segundo-based Saviynt gives an AI-based identification safety platform that secures and governs all kinds of identities throughout digital ecosystems. Based by Amit Saha, Atul Vij, and Sachin Nayyar in 2010, Saviynt has now raised a complete of $870.0M in complete fairness funding and is backed by HPS Funding Companions, PNC Financial institution, Ten Eleven Ventures, Kohlberg Kravis Roberts, and Carrick Capital Companions.
Traders within the spherical: 8VC, Founders Fund, Haun Ventures, Lux Capital
Business: Synthetic Intelligence (AI), Cloud Information Providers, Cyber Safety, Enterprise Software program
Founders: Amit Saha, Atul Vij, Sachin Nayyar
Founding yr: 2010
Complete fairness funding raised: $870.0M
1. Databricks $4.0B
Spherical: Enterprise
Description: San Francisco-based Databricks is a knowledge and AI platform that unifies knowledge engineering, analytics, and machine studying on a lakehouse structure. Based by Ali Ghodsi, Andy Konwinski, Arsalan Tavakoli-Shiraji, Ion Stoica, Matei Zaharia, Patrick Wendell, and Reynold Xin in 2013, Databricks has now raised a complete of $20.6B in complete fairness funding and is backed by Andreessen Horowitz, Blue Owl, Gaingels, NVIDIA, and Temasek Holdings.
Traders within the spherical: Andreessen Horowitz, Databricks, DCVC, Period, Future Ventures, Jeff Bezos, Lightspeed Enterprise Companions, Lux Capital, Naveen Rao, Sequoia Capital
Business: Analytics, Synthetic Intelligence (AI), Information Storage, Info Expertise, Machine Studying
Founders: Ali Ghodsi, Andy Konwinski, Arsalan Tavakoli-Shiraji, Ion Stoica, Matei Zaharia, Patrick Wendell, Reynold Xin
Founding yr: 2013
Complete fairness funding raised: $20.6B
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