OpenAI releases GPT-5.5 Instant; Payment Box raises $15MM Seed from Tandem Ventures

Daily list of private company financial insights
May 6, 2025

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

Trending Companies

Volant Aerotech, a company that developed passenger electric vertical take-off and landing aircraft, raises $300MM Series C from Stone.

Aerospace & Defense (3,325) • Shanghai, China

 

ROBOTERA, a company that builds AI-driven humanoid and service robots designed to learn, adapt, and perform complex physical and interactive tasks across manufacturing, logistics, commerce, and everyday life, raises $200MM Equity Funding from SF Express.

Robotics (1,391) • Zhongguancun, China

 

ZyG, a company that develops agentic operating system for e-commerce scale, raises $60MM Series A from Accel Partners.

Operating Systems (93) • Tel Aviv, Israel

 

Standard Intelligence, a company that developed an artificial intelligence model intended to perform computer-based tasks through graphical interfaces, raises $75MM Equity Funding from Sequoia Capital.

Artificial Intelligence (6,751) • San Francisco, CA • Post-Money Valuation

 

Anello Photonics, a firm that develops a mass-market sensor designed for optical gyroscope performance, raises $25MM Series B-2 from MESH.

Developer Tools (678) • Santa Clara, CA • Post-Money Valuation

Deep Infra, a company that operates a cloud-based AI inference platform designed to simplify the deployment of AI models for various applications, raises $107MM Series B from 500 Global.

Machine Learning (456) • Palo Alto, CA • Post-Money Valuation

 

Panthalassa, a public-benefit corporation building a planetary-scale energy platform that's clean, sustainable, and low-cost, raises $140MM Series B from Peter Thiel.

CleanTech (487) • Portland, OR • Post-Money Valuation

 

Sierra, a developer of a conversational AI platform that enables companies to tailor next-generation AI to their business and customers, raises $950MM Equity Funding from GV.

Generative AI (351) • San Francisco, CA • Post-Money Valuation

 

LakeFusion, a firm that develops master data management software designed to transform data into a strategic asset by providing AI-powered technology, raises $7.5MM Seed from Silverton Partners.

SaaS (7,228) • Austin, TX • Post-Money Valuation

 

ReCharge acquires Skio, a company that developed a subscription management software for brands on Shopify.

E-Commerce (9,496) • San Francisco, CA • Deal
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