In April 2026, Growthink Capital research tracked $8.52 billion in U.S. venture funding.
The month’s biggest funding events were True Anomaly ($650 million), a hardware and software solution designed to provide decisive capabilities for space superiority and security, and Slate Auto ($650 million), a customizable electric vehicle company intended to offer a simple, affordable, and personalized truck.
The hottest sectors for funding during the month were A.I./Machine Learning, Biotech, Healthtech, Fintech, and Marketing Tech.
Key funding events in each of these sectors for the month are below:
- A.I./Machine Learning deals included: True Anomaly ($650 million), Slate Auto ($650 million), Tenex AI ($250 million), Chapter ($100 million), Depthfirst ($80 million), Sycamore ($65 million), Resolve AI ($40 million), Patlytics ($40 million), Luminai ($38 million), Parasail ($32 million), Natter ($23 million), Variance ($21.5 million), NeuBird AI ($19.3 million), TextQL ($17 million), Rork ($15 million), Haast ($12 million), Moonbounce ($12 million), ActionAI ($10 million), Whirl AI ($8.9 million), Shapes ($8 million), and Golden Analytics ($7 million).
- Biotech deals included: Sidewinder Therapeutics ($137 million), Ray Therapeutics ($125 million), Tortugas Neuroscience ($106 million), Stipple Bio ($100 million), Ambrosia Biosciences ($100 million), Beacon Biosignals ($97 million), Life Biosciences ($80 million), Serif Biomedicines ($50 million), Fathom Therapeutics ($47 million), Calyxo ($40 million), ReAlta Life Sciences ($40 million), Verismo Therapeutics ($28 million), and Orthogon Therapeutics ($11 million).
- Healthtech deals included: WHOOP ($575 million), Aidoc ($150 million), Courier Health ($50 million), Tava Health ($40 million), Sennos ($20 million), ONTO Health ($20 million), Joyful Health ($17 million), Amperos Health ($16 million), Keebler Health ($16 million), Coral ($12.5 million), Insight Health ($11 million), and Ambient Clinical Analytics ($5 million).
- Fintech deals included: Rogo ($160 million), Slash Financial ($100 million), Wealth.com ($65 million), Cross River ($50 million), Fence ($20 million), Liquid ($18 million), Pipe ($16 million), Ratio ($15.8 million), Zenskar ($15 million), and Balerion AI ($6 million).
- Marketing Tech deals included: Hightouch ($150 million), HockeyStack ($50 million), Bluefish ($43 million), daydream ($15 million), Chord ($7 million) and GetWhys ($5.2 million).
Last month, 24 companies announced funding rounds exceeding $100 million. Below is a summary of the top 20 companies by amount raised (excluding True Anomaly and Slate Auto, featured above).
- WHOOP ($575 million) a human performance company that provides wearable technology and data analytics to improve health and athletic performance.
- LiveOak Fiber ($425 million) a high-growth internet service provider delivering fiber-to-the-home connectivity.
- SiFive ($400 million) a provider of RISC-V processor IP, focusing on accelerating high-performance data center roadmaps.
- Blue Energy ($380 million) a financeable, modular nuclear power plant using a turnkey approach to accelerate deployment.
- Hermeus ($350 million) an aviation company developing high-Mach unmanned aircraft for national security.
- EnerVenue Holdings ($300 million) a metal-hydrogen energy storage system designed for utility, commercial, and industrial scales.
- Tenex AI ($250 million) an AI-driven platform focused on accelerating enterprise digital transformation and operational efficiency.
- ALSO ($200 million) a Purpose-built electric delivery vehicle designed for bike lanes and dense urban environments.
- Rogo ($160 million) an AI platform purpose-built for the financial sector to automate complex workflows and data analysis.
- Reliable Robotics ($160 million) an automated flight control system to enable remotely operated commercial aircraft for safer and more frequent cargo flights.
- Hightouch ($150 million) a data activation platform that allows marketing teams to sync customer data from warehouses into various SaaS tools.
- Aidoc ($150 million) is an AI-driven solution that assists radiologists by flagging acute abnormalities in medical imaging.
- Sidewinder Therapeutics ($137 million) a biopharmaceutical company focused on developing novel treatments for serious diseases.
- Avoca ($125 million) an AI platform designed to modernize and automate operations within America’s services economy.
- Ray Therapeutics ($125 million) a clinical-stage company developing optogenetic therapies to restore vision in patients with retinal degenerative diseases.
- Aria Networks ($125 million) has hardened SONiC and intelligent agents to optimize token efficiency and network telemetry for data centers.
- Tortugas Neuroscience ($106 million) a biotechnology company focused on developing novel treatments for neurological disorders.
- Slash Financial ($100 million) a banking platform built for modern businesses, providing financial infrastructure and services valued at $1.4 billion.
- Chapter ($100 million) an AI company focused on optimizing retirement planning and Medicare options for seniors.
- Starfish Space ($100 million) a spacecraft to provide life extension and end-of-life services for satellites.