The 11 Largest US Funding Rounds of May 2025 – AlleyWatch

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

The AlleyWatch viewers is driving progress and innovation on a worldwide scale. With its regional media properties, AlleyWatch serves because the freeway for expertise and entrepreneurship. There are a variety of choices to succeed in this viewers of the world’s most progressive organizations and startups at scale together with creating outstanding model placement, driving demand technology, and constructing thought management among the many overwhelming majority of key decision-makers within the New York enterprise group and past. Study extra about promoting to NYC Tech at scale.

11. Statsig $100.0MRound: Collection CDescription: Bellevue-based Statsig gives instruments for A/B testing, function administration, and product analytics to assist groups optimize product improvement. Based by Vijaye Raji in 2021, Statsig has now raised a complete of $153.4M in whole fairness funding and is backed by Sequoia Capital, Madrona, ICONIQ Progress, Gokul Rajaram, and Dylan Area.Traders within the spherical: ICONIQ Progress, Madrona, Sequoia CapitalIndustry: Analytics, Huge Information, SaaSFounders: Vijaye RajiFounding yr: 2021Total fairness funding raised: $153.4M

11. TensorWave $100.0MRound: Collection ADescription: Las Vegas-based TensorWave is an AI and HPC cloud platform that makes use of AMD accelerators to help demanding AI workloads. Based by Darrick Horton, Jeff Tatarchuk, and Piotr Tomasik in 2023, TensorWave has now raised a complete of $146.7M in whole fairness funding and is backed by Nexus Enterprise Companions, Translink Capital, Prosperity7 Ventures, Maverick Capital, and AMD.Traders within the spherical: AMD Ventures, Magnetar Capital, Maverick Silicon, Nexus Enterprise Companions, Prosperity7 VenturesIndustry: Synthetic Intelligence (AI), Cloud Computing, Cloud Infrastructure, Generative AI, IaaSFounders: Darrick Horton, Jeff Tatarchuk, Piotr TomasikFounding yr: 2023Total fairness funding raised: $146.7M

11. LMArena $100.0MRound: SeedDescription: San Francisco-based LMArena targeted on constructing a impartial, open, community-driven platform. Based by Anastasios Angelopoulos in 2025, LMArena has now raised a complete of $100.0M in whole fairness funding and is backed by Andreessen Horowitz, Lightspeed Enterprise Companions, Felicis, Kleiner Perkins, and The Home Fund.Traders within the spherical: Andreessen Horowitz, Felicis, Kleiner Perkins, Laude Ventures, Lightspeed Enterprise Companions, The Home Fund, UC InvestmentsIndustry: Synthetic Intelligence (AI), Communities, Machine Studying, Product ResearchFounders: Anastasios AngelopoulosFounding yr: 2025Total fairness funding raised: $100.0M

11. Snorkel AI $100.0MRound: Collection DDescription: Redwood Metropolis-based Snorkel AI is an AI platform that accelerates knowledge labeling by utilizing machine studying for quicker mannequin coaching. Based by Alexander Ratner, Braden Hancock, Chris Re, Henry Ehrenberg, Manas Joglekar, Paroma Varma, and Vincent Sunn Chen in 2019, Snorkel AI has now raised a complete of $235.3M in whole fairness funding and is backed by Accel, BlackRock, Lightspeed Enterprise Companions, Walden Worldwide, and Greylock.Traders within the spherical: Addition, BNY, Greylock, Lightspeed Enterprise Companions, Prosperity7 Ventures, QBE VenturesIndustry: Synthetic Intelligence (AI), Information Assortment and Labeling, Enterprise Software program, Machine LearningFounders: Alexander Ratner, Braden Hancock, Chris Re, Henry Ehrenberg, Manas Joglekar, Paroma Varma, Vincent Sunn ChenFounding yr: 2019Total fairness funding raised: $235.3M

10. Proprietor $120.0MRound: Collection CDescription: Palo Alto-based Proprietor is a expertise firm that gives instruments for native restaurant homeowners to reinforce gross sales and on-line presence. Based by Adam Guild and Dean Bloembergen in 2018, Proprietor has now raised a complete of $182.2M in whole fairness funding and is backed by Y Combinator, Headline, Activant Capital, GTMfund, and Alt Capital.Traders within the spherical: Alex Bard, Alt Capital, Andrew Steele, Brett Schulman, Christina Cacioppo, Dharmesh Shah, Fidji Simo, Garrett Langley, Headline, Jack Altman, Jason Lemkin, Jonathan Neman, Josh Reeves, Matt Maloney, Max Mullen, Meritech Capital Companions, Y CombinatorIndustry: CRM, Eating places, SoftwareFounders: Adam Guild, Dean BloembergenFounding yr: 2018Total fairness funding raised: $182.2M

9. Stash $146.0MRound: Collection HDescription: New York-based Stash develops a private finance software to mix banking, investing, and recommendation into one platform. Based by Brandon Krieg, David Ronick, and Ed Robinson in 2015, Stash has now raised a complete of $572.3M in whole fairness funding and is backed by StepStone Group, Union Sq. Ventures, Goodwater Capital, Coatue, and Founders Fund.Traders within the spherical: Goodwater Capital, Serengeti Asset Administration, StepStone Group, T. Rowe Value, Union Sq. Ventures, College of Illinois FoundationIndustry: Apps, Banking, FinTech, Cell Apps, Private FinanceFounders: Brandon Krieg, David Ronick, Ed RobinsonFounding yr: 2015Total fairness funding raised: $572.3MAlleyWatch’s unique protection of this spherical: Stash Raises $146M to Improve Monetary Steerage with its AI-Powered Platform

8. Atlas Information Storage $155.0MRound: SeedDescription: South San Francisco-based Atlas Information Storage is an data expertise firm targeted on knowledge storage options. Based by Varun Mehta and Invoice Banyai in 2025, Atlas Information Storage has now raised a complete of $155.0M in whole fairness funding and is backed by Deerfield Administration, ARCH Enterprise Companions, Bezos Expeditions, Tao Capital Companions, and Earth Foundry.Traders within the spherical: ARCH Enterprise Companions, Bezos Expeditions, Deerfield Administration, Earth Foundry, IQT, Rsquared VC, Tao Capital PartnersIndustry: Information Administration, Database, Info TechnologyFounders: Varun Mehta, Invoice BanyaiFounding yr: 2025Total fairness funding raised: $155.0M

7. Awardco $165.0MRound: Collection BDescription: Lindon-based Awardco is a human assets expertise firm that makes a speciality of worker recognition and rewards options. Based by Mike Sonnenberg, Steven J Sonnenberg, and Tanner Runia in 2011, Awardco has now raised a complete of $235.0M in whole fairness funding and is backed by Basic Catalyst, Sixth Road, Spectrum Fairness, and Ryan Smith.Traders within the spherical: Basic Catalyst, Ryan Smith, Sixth Road, Spectrum EquityIndustry: B2B, Worker Advantages, Human Assets, SaaSFounders: Mike Sonnenberg, Steven J Sonnenberg, Tanner RuniaFounding yr: 2011Total fairness funding raised: $235.0M

6. Addepar $230.0MRound: Collection GDescription: Mountain View-based Addepar is a software program and knowledge platform for even probably the most complicated funding portfolios. Based by Jason Mirra and Joe Lonsdale in 2009, Addepar has now raised a complete of $761.4M in whole fairness funding and is backed by Valor Fairness Companions, Vitruvian Companions, 8VC, WestCap, and Cota Capital.Traders within the spherical: 8VC, EDBI, Valor Fairness Companions, Vitruvian Companions, WestCapIndustry: Monetary Companies, FinTech, SaaS, SoftwareFounders: Jason Mirra, Joe LonsdaleFounding yr: 2009Total fairness funding raised: $761.4M

5. ClickHouse $350.0MRound: Collection CDescription: Palo Alto-based ClickHouse gives an open-source database system for real-time analytical reporting. Based by Aaron Katz, Alexey Milovidov, Alexey Milovidov, Yury Izrailevsky, and Yury Izrailevsky in 2021, ClickHouse has now raised a complete of $650.0M in whole fairness funding and is backed by Bessemer Enterprise Companions, Khosla Ventures, Nebius Group, Lightspeed Enterprise Companions, and Index Ventures.Traders within the spherical: Battery Ventures, Benchmark, Bessemer Enterprise Companions, Bond, Coatue, FirstMark, Geodesic Capital, GIC, Index Ventures, IVP, Khosla Ventures, Lightspeed Enterprise Companions, Nebius GroupIndustry: Analytics, Synthetic Intelligence (AI), Huge Information, Database, SoftwareFounders: Aaron Katz, Alexey Milovidov, Alexey Milovidov, Yury Izrailevsky, Yury IzrailevskyFounding yr: 2021Total fairness funding raised: $650.0M

💡 CONNECT WITH NYC INNOVATORS

Be part of NYC’s high tech firms in reaching AlleyWatch’s engaged viewers of founders, buyers, and decision-makers. Study Extra →

4. Rippling $450.0MRound: Collection GDescription: San Francisco-based Rippling is a workforce administration platform that unifies HR, IT, and finance operations right into a single system. Based by Parker Conrad and Prasanna Sankar in 2016, Rippling has now raised a complete of $1.8B in whole fairness funding and is backed by Y Combinator, Sequoia Capital, Founders Fund, Sands Capital Ventures, and Coatue.Traders within the spherical: Baillie Gifford, GIC, GS Progress, Sands Capital Ventures, WiL (World Innovation Lab), Y CombinatorIndustry: Employment, Human Assets, Info Expertise, InsurTech, IT ManagementFounders: Parker Conrad, Prasanna SankarFounding yr: 2016Total fairness funding raised: $1.8B

3. Perplexity $500.0MRound: VentureDescription: San Francisco-based Perplexity is an AI-powered reply engine designed to supply correct, real-time responses to consumer queries. Based by Andy Konwinski, Aravind Srinivas, Denis Yarats, and Johnny Ho in 2022, Perplexity has now raised a complete of $1.2B in whole fairness funding and is backed by Accel, Bessemer Enterprise Companions, New Enterprise Associates, NVIDIA, and IVP.Traders within the spherical: AccelIndustry: Synthetic Intelligence (AI), Chatbot, Generative AI, Machine Studying, Pure Language Processing, Search EngineFounders: Andy Konwinski, Aravind Srinivas, Denis Yarats, Johnny HoFounding yr: 2022Total fairness funding raised: $1.2B

2. Surprise $600.0MRound: VentureDescription: New York-based Surprise is a meals supply startup that operates truck-based eating places from which shoppers can order meals by means of a cell app. Based by Juan Cappello and Marc Lore in 2018, Surprise has now raised a complete of $2.4B in whole fairness funding and is backed by Basic Catalyst, Accel, New Enterprise Associates, Forerunner, and Bain Capital Ventures.Traders within the spherical: Accel, American Categorical Ventures, Forerunner, Google Ventures, New Enterprise AssociatesIndustry: E-Commerce, Meals and Beverage, Meals Supply, RestaurantsFounders: Juan Cappello, Marc LoreFounding yr: 2018Total fairness funding raised: $2.4B

1. Grammarly $1.0BRound: VentureDescription: San Francisco-based Grammarly is an AI-powered writing assistant that gives grammar checking, plagiarism detection, and generative textual content strategies. Based by Alex Shevchenko, Alex Shevchenko, Dmytro Lider, and Max Lytvyn in 2009, Grammarly has now raised a complete of $1.4B in whole fairness funding and is backed by Basic Catalyst, BlackRock, Spark Capital, IVP, and SignalFire.Traders within the spherical: Basic CatalystIndustry: Synthetic Intelligence (AI), Copywriting, Generative AI, Machine Studying, Digital AssistantFounders: Alex Shevchenko, Alex Shevchenko, Dmytro Lider, Max LytvynFounding yr: 2009Total fairness funding raised: $1.4B