Big Red Startups

Recent News

2026-10-30 Acquired Rune Technologies AI predictive logistics for defense article
2026-10-29 Series D Group14 Technologies Silicon battery technology article
2026-10-26 Series B Infisical Software codebase secret management article
2026-10-21 Series B Peak Energy Giga-scale energy storage article
2026-10-20 Seed Pennant AI AI proxy voting for public markets article
2026-10-13 Series B Soufflé Therapeutics Cell-specific therapeutics article
2026-10-13 Acquired C1 Identity governance platform article
2026-10-08 Series A Fortastra Intelligent spacecraft article
2026-10-08 Series D Voltus Shift electricity usage article
2026-10-06 Series A Melius AI for human creativity article
2026-10-05 Series A Reclinker Scalable process for recycling cement article
2026-10-01 Seed Biotia Infectious disease diagnostics article
2026-10-01 Series A Halluminates Datasets to train AI models article
2026-10-01 Acquired Arize AI LLM evaluation platform article
2026-09-30 Series E OpenEvidence Organizing the world’s medical knowledge article
2026-09-29 Series B Tiny Health Microbiome tests for mother/baby's gut health insights article
2026-09-29 Seed Meadow AI Software for retail operations article
2026-09-24 Seed Andco Plaintiff legal cases article
2026-09-23 Series B Mojave Energy Systems Changing the nature of air conditioning article
2026-09-16 Series E Ridgeline Software for investment managers article
2026-09-15 Seed Teram AI data center chips article
2026-09-15 Seed Interlune Harvest natural resources from space article
2026-09-14 Seed BoomerangHR Employee offboarding and alumni management article
2026-09-09 Series A Lightfield AI-native CRM article
2026-09-08 Seed Concorda Litigation AI legal associate article
2026-09-08 Series E Stoke Space Reusable space rockets article
2026-08-31 Series B Reframe Systems Robots to build resilient housing article
2026-08-28 Series C Ajaib Indonesia investment platform article
2026-08-25 Acquired DeLorean Artificial Intelligence Harness ROI from structured and unstructured data article
2026-08-24 Acquired Revv SaaS solutions for the automotive industry article
2026-08-19 Seed idler Platform for reinforcement learning article
2026-08-18 Series A Velaura AI Ultra-low power compute in data centers article
2026-08-12 Series B Yuno Manage all the payment methods and fraud providers through a single integration. article
2026-08-11 Seed Soctera Nitride semiconductor power amplifier article
2026-08-11 Seed Bios Life AI cancer surveillance article
2026-08-07 Series G Whatnot Livestream shopping platform article
2026-08-05 Series A Luxe Software Software for jewelry retailers article
2026-08-04 Series B Convex Server backend for software applications article
2026-08-03 IPO Obsidian Therapeutics Cell and gene therapies article
2026-07-30 Acquired Simon AI Customer data platform for marketing campaigns article
2026-07-22 Seed Petra Labs Marketing platform for AI search article
2026-07-22 Series A Transcripta Bio Drug-gene atlas for drug discovery article
2026-07-15 Acquired BloXroute Labs Ultra-fast DeFi Trading article
2026-07-10 Acquired Aidora HR leave management software article
2026-07-09 Series C Gauntlet Web3 defi solutions article
2026-07-08 Series B Kuehnle Agrosystems Algae and botanical product ingredients article
2026-07-07 Acquired Arc Technologies Cash management and growth capital article
2026-06-19 Seed Vali Health AI assistant for home care article
2026-06-18 Series C Hyperlight Optical circuits for optical data article
2026-06-17 Series A Zadar Labs 4D imaging for AI systems article
2026-06-15 Seed Radical Numerics AI for biological intelligence article
2026-06-15 Series C AttoTude Faster processing in data centers article
2026-06-14 Seed Ploy Website for business growth article
2026-06-11 Series B Coram AI AI software for security cameras article
2026-06-10 Seed Ovelle Fertility egg production article
2026-06-10 Seed F2 AI AI platform for private market article
2026-06-10 Seed Flux Coding team intelligence article
2026-06-09 Pre-Seed Orbital Space Data Centers AI data centers in space article
2026-06-09 Series A Infinity Constellation AI-native service companies article
2026-06-08 IPO Factorial Energy Safe, high performance batteries article
2026-06-04 Acquired Leapfin Financial accounting software for revenue transaction data article
2026-06-03 Acquired Kumo.AI Query large scale data warehouses article
2026-06-02 Series A Layup Parts Manufacturing for composite parts article
2026-05-28 Pre-seed Gigit.ai Personalized ecommerce on shopify article
2026-05-28 Acquired Akridata AI data visualization article
2026-05-14 Series A GovWell Modern software for local government article
2026-05-14 Seed Laurence Amazon ad management article
2026-05-13 Series H Anduril Industries US military defense R&D article
2026-05-06 Series B Vori Grocery point-of-sale system article
2026-05-06 Acquired Midship Extract documents into spreadsheets article
2026-05-06 Series A Kanvas Biosciences Gut microbiome for therapeutics article
2026-04-15 Acquired Tomato.ai Change accents in real-time using AI article
2026-04-14 Acquired Monarch Tractor Smart autonomous tractors for farming article
2026-04-14 Series B Mintlify Software code documentation article
2026-04-13 Series A Real Sports App Social sports data article
2026-04-09 Acquired Exostellar Reduce cloud costs by CPU and GPU optimization article
2026-04-07 Pre-Seed Patientory Web3 for health data article
2026-04-07 Series A SimpliFed Baby breastfeeding virtual care article
2026-04-07 Series C Hermeus High-speed aircraft article
2026-03-31 Seed Loca Small businesses rewards for customers article
2026-03-26 Seed General Legal Commercial contract AI law firm article
2026-03-25 Series E Euler Motors Sustainable last mile transport article
2026-03-25 Series B Centivax Broad-spectrum vaccine article
2026-03-23 Pre-Seed Idpair Data science for gaming industry article
2026-03-23 Series A PointOne Automated time tracking and billing for law firms article
2026-03-18 Series A Latent Medical language models for healthcare overhead article
2026-03-18 Series B BusRight School bus platform article
2026-03-11 Series A Xscape Photonics Photonics for semiconductor manufacturing article
2026-03-11 Pre-Seed Broome AI for commercial real estate article
2026-03-05 Series C Sage Senior living with real-time alerts and data insights article
2026-02-26 Series A Comp HR total rewards software article
2026-02-26 Series D Honest Health Primary care for senior care article
2026-02-25 Series A Abram Scientific Coagulation diagnostics medical device article
2026-02-18 Series A Avantos Client onboarding and servicing AI article
2026-02-17 Seed Paket Mutfak Food brands through all food delivery platforms in Turkey article
2026-02-17 Pre-Seed Lexi Building energy management article
2026-02-17 Seed Intrinsic Foundries Convert industrial waste to biochemicals article
2026-02-14 Series B LeoLabs Low earth orbit mapping article
2026-02-13 Series A Translucent AI FP&A for healthcare article
2026-02-09 Series A Radicle Science Prove effects of health and wellness products beyond placebo article
2026-02-04 Acquired Veda Trials Clinical trial operations article
2026-02-04 Seed Adaption Labs AI that adapts to real world article
2026-02-03 Acquired BlueCove Scientific fixed income article
2026-02-02 Series G Varo Bank Financial inclusive bank article
2026-01-30 Seed Uplift AI Voice AI for underserved languages article
2026-01-30 Series B Epikast Engage patients and health providers article
2026-01-29 Pre-Seed Arkero AI for professional sports teams article
2026-01-29 Series B Sixfold AI Generative AI for insurance underwriting article
2026-01-29 Series A Pranax Develop exosomes for longevity article
2026-01-28 Acquired Propolis AI for software testing article
2026-01-28 Acquired Kaia Health Evidence based digital health article
2026-01-27 Seed Midship Extract documents into spreadsheets article
2026-01-27 Series B Northwood Space Space satellite infrastructure article
2026-01-27 Pre-Seed Soundskrit Directional microphones article
2026-01-21 Seed AheadComputing Faster computer processor article
2026-01-21 Series D OpenEvidence Organizing the world’s medical knowledge article
2026-01-13 Series A Flip CX Voice AI for customer service on the phone article
2026-01-09 Series A Cloudforce Microsoft cloud solutions article
2025-12-29 Series B MangoBoost Data center boost for AI workflows article
2025-12-11 Seed Fortastra Intelligent spacecraft article
2025-12-10 Series A Oboe Personalized courses for learning article
2025-12-09 Series B D3 Bio Oncology and immunology medicine article
2025-12-09 Series A Aradigm Health Access to cell gene therapies article
2025-12-06 Seed Addis Energy Ammonia production pathway article
2025-12-04 Series G Creditas Consumer loans backed by assets article
2025-11-20 Acquired Symba Software platform for new hires article
2025-11-20 Series C Point One Navigation Precise navigation positioning article
2025-11-19 Series A Method Security Full-spectrum cybersecurity article
2025-11-18 Acquired Spiral AI to identify customer issues article
2025-11-18 Series A Airhart Aeronautics Airplanes that anyone can fly article
2025-11-17 Seed Bone Robot intelligence article
2025-11-17 Seed BluePill AI consumers for marketing research article
2025-11-13 Series C Harbinger Commercial electric vehicles article
2025-11-12 Series A Convex Server backend for software applications article
2025-11-12 Series A Joy Resources on how to be a parent article
2025-11-06 Seed Avallon Labs AI for insurance claims operations article

Notable Exits

2026-10-30 Rune Technologies Acquired by Salesforce
2026-10-13 C1 Acquired by Workday
2026-10-01 Arize AI Acquired by Dynatrace
2026-08-25 DeLorean Artificial Intelligence Acquired by WellStack
2026-08-24 Revv Acquired by AirPro Diagnostics
2026-08-04 Obsidian Therapeutics IPO · NASDAQ:OBX
2026-07-30 Simon AI Acquired by Monetate
2026-07-15 BloXroute Labs Acquired by FalconX
2026-07-10 Aidora Acquired by Paylocity
2026-07-07 Arc Technologies Acquired by Axos Bank
2026-06-08 Factorial Energy IPO · NASDAQ:FAC
2026-06-04 Leapfin Acquired by Airwallex
2026-06-03 Kumo.AI Acquired by NVIDIA
2026-06-02 Nara Logics Acquired by OmniFederal
2026-05-28 Akridata Acquired by DIMAAG
2026-05-06 Midship Acquired by Optro
2026-04-27 Svelte Medical Systems Acquired by Advanced Bifurcation Systems
2026-04-15 Carry Acquired by Lettuce Financial
2026-04-15 Education Elements Acquired by engage2learn
2026-04-14 Tomato.ai Acquired by Sanas
2026-04-10 Monarch Tractor Acquired by Caterpillar
2026-04-01 TelyRx IPO · TSX:TELY
2026-03-27 HireBolt Acquired by Index
2026-03-11 MAVRIK Acquired by HavocAI
2026-02-04 Veda Trials Acquired by Lightship
2026-02-03 BlueCove Acquired by Ares Management
2026-01-28 Kaia Health Acquired by Sword Health
2026-01-28 Propolis Acquired by Datadog
2026-01-27 Resolution Medical Acquired by Resonetics
2026-01-21 Ganymede Acquired by Apprentice.io
2026-01-14 BLACE Acquired by Resident
2026-01-06 Arctos Sports Partners Acquired by Kohlberg Kravis Roberts & Co.
2025-12-17 Qualified Acquired by Salesforce
2025-12-04 Freenome Acquired by Perceptive Capital Solutions
2025-12-01 Crownpeak Acquired by Rezolve
2025-11-20 Symba Acquired by yello
2025-11-18 Spiral Acquired by UJET
2025-11-13 BrightHire Acquired by Zoom
2025-11-04 Populus Acquired by IPS Group
2025-10-29 Recura AI Acquired by patientNOW
2025-10-24 Adro Acquired by Finfare
2025-10-22 Omnispace Acquired by Lynk Global
2025-10-08 Minnetronix Medical Acquired by Forj Medical
2025-09-16 Scientist.com Acquired by GHO Capital
2025-08-28 OptiMine Software Acquired by Uptempo
2025-08-13 ZeroDev Acquired by Offchain Labs
2025-08-04 Alucio Acquired by MediSpend
2025-07-29 Rexera Acquired by RealPage
2025-07-28 Convoy Acquired by DAT Freight & Analytics
2025-07-23 Iodine Software Acquired by Waystar
2025-07-17 Soluna IPO · NASDAQ:SLNH
2025-07-16 Coin Metrics Acquired by Talos
2025-07-01 Snapfi Acquired by Thopen Energy
2025-06-24 Datasembly Acquired by SPINS
2025-06-13 Tentacle Acquired by Cytracom
2025-06-11 Amino Acquired by Judi Health
2025-06-11 Lucia Acquired by Tern Travel
2025-06-11 Privy Acquired by Stripe
2025-06-10 Fable Acquired by Scribd, Inc.
2025-06-04 Likewise Software Acquired by Watchlist
2025-05-20 Halo Labs Acquired by Waters
2025-05-12 Bactana Corp. Acquired by Kemin Industries
2025-03-27 OfferFit Acquired by Braze
2025-03-13 Glosslab Acquired by Townhouse
2025-03-11 Birdies Acquired by KNS International
2025-03-03 ModMed Acquired by Clearlake Capital Group
2025-02-11 Caraway Acquired by Summer Health
2025-02-06 Aspen Leadership Group Acquired by ZRG Partners
2025-01-28 Kona Acquired by 15Five
2025-01-24 Yoomi Acquired by Raintree Systems
2025-01-22 Celeri Acquired by Esusu
2025-01-22 Divvy Homes Acquired by Brookfield Properties
2025-01-06 ProntoNLP Acquired by S&P Global
2024-12-18 Cquence Acquired by Spekit
2024-12-18 imaware Acquired by SuperTruth
2024-11-19 Twiage Acquired by TigerConnect
2024-10-30 OfColor Acquired by Financial Finesse
2024-10-22 Accumen Acquired by hc1
2024-10-16 Burrow Acquired by Havenly
2024-10-11 Ceribell IPO · NASDAQ:CBLL
2024-09-24 Paintzen Acquired by Arch Painting
2024-09-03 Keyhole.co Acquired by Muck Rack
2024-08-16 Tilly Acquired by Bower & Branch
2024-06-27 Celsius Therapeutics Acquired by AbbVie
2024-06-27 Salt Labs Acquired by Chime
2024-06-04 Dwellwell Analytics Acquired by TaoWeave
2024-05-30 Awfis Space Solution IPO · NSE:AWFIS
2024-05-01 Charles River Data Acquired by Neptune Flood
2024-04-09 Petal Acquired by Tilt (formerly Empower)
2024-04-05 People Clerk Acquired by Quest for Justice
2024-04-03 Dia&Co Acquired by Fullbeauty Brands
2024-03-28 Boundless Bio IPO · NASDAQ:BOLD
2024-03-26 Gigster Acquired by Virtasant
2024-03-21 VIDA Acquired by Santé Group
2024-01-22 Biosim AI Acquired by Deep Origin
2023-11-20 Janover Connect Acquired by DeFi Development Corporation
2023-11-06 Sawyer Acquired by DaySmart Software
2023-10-30 Sucro Sourcing IPO · TSXV:SUGR
2023-10-18 Betches Acquired by LBG Media
2023-09-19 Spin Acquired by Bird
2023-09-19 Toucan Acquired by Babbel
2023-08-11 Jet.AI IPO · NASDAQ:JTAI
2023-04-05 Scopely Acquired by Savvy Games Group
2023-03-06 Weekend Health Acquired by Weight Watchers
2022-12-29 Coya Therapeutics IPO · NASDAQ:COYA
2022-11-02 Peak Bio Acquired by Akari Therapeutics
2022-09-27 Atlis Motor Vehicles IPO · NASDAQ:AMV
2022-08-26 Aeluma IPO · NASDAQ:ALMU
2022-06-13 Mobile X Global Acquired by Electro-Sensors
2022-05-05 iCIMS Acquired by Vista Equity Partners
2022-03-04 Alnylam Pharmaceuticals IPO · NASDAQ:ALNY
2022-02-08 Quanergy Systems IPO · NYSE:QNGY
2021-12-28 CompoSecure IPO · NASDAQ:CMPO
2021-12-15 Samsara IPO · NYSE:IOT
2021-12-13 Kroll Bond Rating Agency Acquired by Parthenon Capital Partners
2021-10-19 Pilota Acquired by Hopper
2021-10-19 Zenith Ai Acquired by Opentrons
2021-10-14 Wana Brands Acquired by Canopy Growth
2021-10-08 Pyxis Oncology IPO · NASDAQ:PYXS
2021-08-19 QuillBot Acquired by Learneo
2021-08-11 Moxie Acquired by NICE Systems
2021-07-21 Kaltura IPO · NASDAQ:KLTR
2021-07-19 Celularity Acquired by Nexgel
2021-07-02 AvePoint IPO · NASDAQ:AVPT
2021-06-28 Dimension Energy Acquired by Partners Group
2021-06-11 Janux Therapeutics IPO · NASDAQ:JANX
2021-06-10 Katapult IPO · NASDAQ:KPLT
2021-05-25 NRx Pharmaceuticals IPO · NASDAQ:NRXP
2021-04-27 FTC Solar IPO · NASDAQ:FTCI
2021-04-21 NeuroPace IPO · NASDAQ:NPCE
2021-04-15 Akoya Biosciences Acquired by Quanterix
2021-04-14 GiveGab Acquired by EveryAction
2021-03-22 Otari Acquired by Peloton
2021-03-01 ChargePoint IPO · NYSE:CHPT
2021-02-08 Datalogue Acquired by Nike
2021-02-08 Sana Biotechnology IPO · NASDAQ:SANA
2021-01-31 Flybuy Acquired by Radius Networks
2020-12-24 Human Security Acquired by Goldman Sachs Merchant Banking Division
2020-12-14 Azara Healthcare Acquired by SPH Analytics
2020-12-14 Loom.ai Acquired by Roblox
2020-12-01 Allied Power Acquired by Bernhard Capital Partners Management
2020-11-09 Rocketbook Acquired by Societe BIC
2020-09-25 Amesite Acquired by Montrose Capital Partners
2020-06-30 Flatiron School Acquired by Carrick Capital Partners
2020-06-01 Peak Games Acquired by Zynga
2020-02-26 Thread Learning Acquired by Central Reach
2019-11-20 Honey Acquired by PayPal
2019-10-30 Rapt Therapeutics Acquired by GSK
2019-09-12 SpringWorks Therapeutics Acquired by Merck
2019-09-06 Auggi Acquired by Seed Health
2019-07-15 Xingkeduo Acquired by Novena Global Healthcare Group
2019-06-26 Adaptive Biotechnologies IPO · NASDAQ:ADPT
2019-05-10 Viva Biotech IPO · HKEX:1873
2019-05-07 Bowtie Acquired by Mindbody
2019-03-29 Lyft IPO · NASDAQ:LYFT
2019-01-28 The Laundress Acquired by Unilever
2019-01-18 Coins.ph Acquired by Gojek
2019-01-13 Lattice Engines Acquired by Dun & Bradstreet
2019-01-04 Shaper Acquired by TTS Tooltechnic Systems
2018-12-06 Moderna IPO · NASDAQ:MRNA
2018-10-11 Allogene Therapeutics IPO · NASDAQ:ALLO
2018-09-19 Eventbrite Acquired by NYSE:EB
2018-09-13 Hua Medicine IPO · HKEX:2552
2018-09-12 111, Inc. IPO · NASDAQ:YI
2018-05-04 Carbon Black Acquired by VMware
2018-04-24 Braemar Hotel & Resorts Inc IPO · NYSE:BHR
2018-04-12 Zuora Acquired by NYSE:ZUO
2018-02-27 Booking Holdings IPO · NASDAQ:BKNG
2018-01-30 Allegiant Gold IPO · TSXV:AUAU
2017-10-23 GitLinks Acquired by Infor
2017-07-01 Uru Acquired by Adobe
2017-04-18 Moat Acquired by Oracle
2017-04-13 Yext IPO · NYSE:YEXT
2017-01-24 Cypherpunk Technologies IPO · NASDAQ:CYPH
2017-01-14 AquaBounty Technologies IPO · NASDAQ:AQB
2016-10-06 Coupa Acquired by Thoma Bravo
2016-04-04 AvenuesAI IPO · NSE:INFIBEAM
2016-03-09 BlackBoxStocks IPO · NASDAQ:BLBX
2015-12-07 Updater IPO · ASX:UPD
2015-08-25 Twelve Acquired by Medtronic
2015-08-03 Arbutus Biopharma IPO · NASDAQ:ABUS
2015-06-01 Trigger Finance Acquired by Circle
2015-02-03 Bluemercury Acquired by Macy's
2014-12-19 Bina Technologies Acquired by Roche
2014-11-14 Ashford IPO · NYSE AMERICAN:AINC
2014-10-16 Atara Biotherapeutics IPO · NASDAQ:ATRA
2014-10-02 Wayfair IPO · NYSE:W
2014-06-20 GeneWEAVE Acquired by Roche
2014-05-08 Dorian LPG IPO · NYSE:LPG
2014-03-07 Neurogene IPO · NASDAQ:NGNE
2014-02-12 Flexion Therapeutics Acquired by Pacira Pharmaceuticals
2014-02-06 Genocea Biosciences IPO · NASDAQ:GNCA
2014-01-31 Dicerna Pharmaceuticals Acquired by Novo Nordisk
2013-10-10 MacroGenics IPO · NASDAQ:MGNX
2013-08-07 Marrone Bio Innovations IPO · NASDAQ:MBII
2013-05-14 Happy Family Acquired by Danone
2013-04-25 MiMedx Group IPO · NASDAQ:MDXG
2013-04-25 Parse Acquired by Meta
2012-12-20 Behance Acquired by Adobe
2012-11-20 Meraki Acquired by Cisco
2012-10-12 Workday IPO · NASDAQ:WDAY
2012-01-25 Guidewire Software IPO · NYSE:GWRE
2011-06-15 Pandora Acquired by NYSE:P
2010-10-27 PacBio IPO · NASDAQ:PACB
2010-02-03 Ironwood Pharmaceuticals IPO · NASDAQ:IRWD
2009-12-16 Sabrix Acquired by Thomson Reuters
2009-10-13 Kionix Acquired by Rohm
2009-06-12 Minds + Machines IPO · AIM:MMX
2008-02-21 The CBORD Group Acquired by Roper Technologies
2007-09-08 Kroll Acquired by Stone Point Capital
2007-08-14 VMware Acquired by Broadcom
2007-04-11 Fandango Acquired by Comcast
2007-02-01 XTENT IPO · NASDAQ:XTNT
2006-10-27 PeerStream IPO · OTC:PEER
2006-08-27 TetraData Acquired by Follett Corporation
2005-08-30 Teleo Acquired by Microsoft
2005-07-05 Walker Innovation IPO · OTC:WLKR
2004-12-13 PeopleSoft Acquired by Oracle
2004-06-18 Blackboard Acquired by Class Technologies
2004-01-29 CCBN Acquired by Thomson Reuters
2003-08-26 Ashford Hospitality Trust IPO · NYSE:AHT
2003-06-22 Hotels.com Acquired by USA Interactive
2001-06-21 First Call Acquired by Thomson Reuters
2000-03-02 Palm Acquired by HP
1999-03-30 Priceline IPO · NASDAQ:PCLN
1998-11-13 theGlobe.com IPO · NASDAQ:TGLO
1998-06-08 Viaweb Acquired by Yahoo
1996-10-30 Duty Free Shoppers Acquired by LVMH
1994-05-13 Ascend Communications IPO · NASDAQ:ASND
1992-11-20 Consumer Portfolio Services IPO · NASDAQ:CPSS
1991-12-20 Qualcomm IPO · NASDAQ:QCOM
1991-04-12 Regeneron IPO · NASDAQ:REGN
1989-12-15 PTC IPO · NASDAQ:PTC
1986-07-18 Toll Brothers IPO · NYSE:TOL
1980-08-01 Linkabit Acquired by M/A-Com
Modus Acquired
Venue Acquired by Ramp

A directory of 35 startups founded by Cornell University alumni, organized by industry, funding stage, and location — each listed with its founders, description, and links. Compiled and updated by Big Red AI.

Browse by industry, location & stage AI Biotech Healthcare Fintech Software & SaaS Blockchain & Crypto Consumer & E-Commerce Climate & Energy Data & Analytics Robotics & Hardware Cybersecurity Food & Agriculture Real Estate & PropTech EdTech Aerospace & Space Manufacturing & Supply Chain Developer Tools & Cloud Marketing & AdTech Media & Entertainment HR & Recruiting Wellness & Fitness Genomics & Life Sciences Insurance & InsurTech Travel & Hospitality Legal Tech New York City the San Francisco Bay Area the Boston Area Los Angeles Seattle Austin Washington, D.C.Pre-Seed Seed-Stage Series A Series B Series C