Rivian goes big on autonomy, with custom silicon, lidar, and a hint at robotaxis; Saviynt raises $700MM Series B from KKR

Daily list of private company financial insights
December 15, 2025

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PrivCo's Daily Stack ® is a daily financial newsletter,
where you'll find the latest fundings and deals in the private market.

Trending Companies

Highland Electric Fleets, a company that provides fleet electrification services intended to electrify school buses, raises $150MM Equity Funding from Aiga Capital Partners. 

Autonomous Vehicles (367) • Beverly, MA • Post-Money Valuation

 

Surf AI, a company that operates an AI intelligence platform for digital assets, raises $15MM Equity Funding from Pantera Capital.

Blockchain (1,292) • Palo Alto, CA • Post-Money Valuation

 

Cynch, a company that develops a generative AI platform, raises $9MM Equity Funding from True Global Ventures.

Generative AI (338) • San Francisco, CA • Post-Money Valuation

 

Locus Fermentation, a company that develops microbial and biosurfactant systems, raises $20MM Equity Funding from Hudson Bay Capital Management.

CleanTech (454) • Solon, OH • Post-Money Valuation

 

Outset, a company that operates artificial intelligence-interview tools, raises $30MM Series B from Radical Ventures.

Research (1,279) • San Francisco, CA • Post-Money Valuation

 

Channel3, a company that develops a product data infrastructure tool designed for application and artificial intelligence system integration, raises $6MM Seed from Matrix Partners.

System Integration (870) • New York, NY • Post-Money Valuation

 

Impulse Dynamics, a company that develops a cardiac contractility modulation technology to treat chronic heart failure problems, raises $158MM Equity Funding from Fred Alger Management.

Health Care Technology (2,891) • Mount Laurel, NJ • Post-Money Valuation

 

Harness, a company that develops a delivery-as-a-service platform to simplify the software delivery process, raises $240MM Series E from Goldman Sachs Alternatives.

Enterprise Software (5,963) • San Francisco, CA • Post-Money Valuation

 

Double, a company that operates a bookkeeping software, raises $6.5MM Series A from Album Ventures.

Accounting (10,809) • Claymont, DE • Post-Money Valuation

 

Valinor, a company that develops advanced machine learning models designed to accelerate clinical drug development, raises $13MM Equity Funding from Charles River Ventures.

Drug Research (972) • San Francisco, CA • Post-Money Valuation

Medra, a developer of a robotic system intended to accelerate biology research by making lab automation accessible, raises $52MM Series A from Human Capital.

Automation (2,953) • San Francisco, CA • Post-Money Valuation

 

K2 Space, a company that develops aerospace hardware products designed for space architecture, raises $250MM Series C from Redpoint Ventures.

Satellites (447) • Torrance, CA • Post-Money Valuation

 

Orion Sleep, a company that develops a smart sleep system, raises $18MM Seed from Mucker Capital.

Home Improvement (2,763) • Santa Monica, CA • Post-Money Valuation

 

Subsense, a neurotechnology firm that develops a non-surgical, nanoparticle-based bidirectional brain-computer interface, raises $10MM Equity Funding from Golden Falcon Capital.

Nanotechnology (244) • Covina, CA • Post-Money Valuation

 

STIC, a company that develops an adtech platform, raises $10MM Debt Funding from Accretion Capital.

AdTech (321) • Santa Monica, CA • Post-Money Valuation

 

Keeper, a company that develops an AI matchmaking family formation platform, raises $4MM Pre-Seed Funding from Lakehouse Ventures.

Dating (73) • Dover, DE • Post-Money Valuation

 

On Me, a company that develops personalized digital gifting platform, raises $6MM Seed from NFX Guild.

Gifts (1,141) • San Francisco, CA • Post-Money Valuation

 

Ritten, a firm that develops a unified behavioral health practice management platform, raises $35MM Series B from Five Elms Capital.

Health Care Technology (2,890) • Philadelphia, PA • Post-Money Valuation

 

AIR Platforms, a firm that develops an AI-powered credit intelligence platform, raises $6.1MM Seed from Lerer Hippeau Ventures.

Credit (310) • New York, NY • Post-Money Valuation

 

Proofpoint acquires Hornetsecurity, a company that provides cloud-based email security and data protection products.

Cyber Security (3,121) • Pittsburgh, PA • Deal
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