US Startup Funding Rounds: August 31, 2026 – September 6, 2026
25 US venture rounds closed between August 31, 2026 and September 6, 2026, led by Zodia Custody at $400M (Series D).
Every round below is a named venture round by a US-headquartered company, sourced from SEC filings and verified announcements. Investment funds, IPOs, post-IPO placements and valuation-only reports are excluded.
| Company | Location | Amount | Round | Date | What they do |
|---|---|---|---|---|---|
| Zodia Custody | San Francisco | $400M | Series D | September 5, 2026 | Zodia Custody is a digital asset custodian providing regulated custody operations for institutional clients. Its custody operations span Singapore, Ho… |
| Medici Brands | New York, New York | $270.9M | Series B | September 2, 2026 | Medici Brands creates progress by rethinking the products of the past. Its portfolio includes David Protein, a high-protein food brand, and HallPass, … |
| Saviynt | Los Angeles | $255M | Series B | August 31, 2026 | Saviynt's AI-powered identity platform manages and governs human and non-human access to all of an organization's applications, data, and business pro… |
| Owner.com | San Francisco, California | $240M | Series D | September 1, 2026 | Owner.com makes online growth easy for restaurants. Our software helps local restaurants compete — and win against — big national brands. Independent … |
| Lyte | Mountain View, California | $165M | Series C | September 2, 2026 | Lyte is an end-to-end integrated perception company for robotics and Physical AI, focused on enabling machines to see, understand, and operate safely … |
| HiddenLayer | LEANDER, Texas | $100M | Series B | September 2, 2026 | HiddenLayer, a Gartner-recognized Cool Vendor for AI Security, is the leading provider of Security for AI. Its security platform helps enterprises saf… |
| WeTravel | San Francisco, California | $92M | Series C | September 3, 2026 | WeTravel is an all-in-one operating system built for multi-day, group travel businesses. It combines itinerary creation, booking software, global paym… |
| AMP Robotics Corporation | Denver, Colorado | $91M | Series D | August 31, 2026 | AMP Robotics Corporation is a leading provider of high-technology sorting solutions for the waste and recycling industry. The company applies AI-power… |
| Superluminal Medicines | Boston, Massachusetts | $65.5M | Series B | September 3, 2026 | Superluminal Medicines is a Boston-based generative biology and chemistry company developing a differentiated pipeline and revolutionizing the speed a… |
| Superluminal Medicines | Boston, Massachusetts | $60M | Series B | September 6, 2026 | Superluminal Medicines is a Boston-based generative biology and chemistry company developing a differentiated pipeline and revolutionizing the speed a… |
| Physical Superintelligence | Cambridge, Massachusetts | $58M | Seed | September 1, 2026 | Physical Superintelligence (PSI) is creating the world's most advanced physics research lab, focused on discovering new physical laws and engineering … |
| Elucid | Boston | $55M | Series D | September 2, 2026 | Elucid is a Boston-based medical technology company using histology-validated software to provide physicians with a cost-effective means to optimize t… |
| Capacity | St. Louis | $54M | Series E | September 2, 2026 | Capacity is an AI-powered support automation platform that connects your entire tech stack to answer questions, automate repetitive support tasks, and… |
| ShipIn Systems | Newton, Massachusetts | $52M | Series B | September 1, 2026 | ShipIn Systems is the world's first FleetVision™ Platform, unlocking ship-to-shore collaboration for maritime fleets with visual analytics. ShipIn's p… |
| BrightAI | San Francisco, California | $51M | Series A | September 1, 2026 | BrightAI is a hyper-growth Infrastructure AIoT copilot platform company with a mission to revitalize and automate western infrastructure. Our commitme… |
| Conveo | San Francisco, California | $50M | Series A | September 2, 2026 | Conveo, founded in April 2024, is developing an AI-powered research coworker that provides deep customer insights through AI-moderated video interview… |
| SciFin | San Francisco, California | $44M | Seed | September 1, 2026 | SciFin helps revenue teams turn fragmented information into timely action. The company was founded by Mohit Aron, an enterprise software pioneer known… |
| Wafer | San Francisco, California | $40M | Series A | September 1, 2026 | Wafer is an AI infrastructure optimization startup that uses autonomous agents to improve GPU performance and utilization in production environments. … |
| EIT Pharma | Los Angeles, California | $35M | Series A | August 31, 2026 | EIT Pharma is a biotechnology company focusing on developing therapies for infectious diseases. The company is dedicated to delivering life-changing t… |
| N-Power Medicine | Redwood City, California | $32M | Series B | September 1, 2026 | N-Power Medicine is a clinical research and drug development platform company that aims to integrate clinical research and routine care into a single … |
| PatientIQ | Chicago, Illinois | $30M | Series C | September 3, 2026 | PatientIQ is the healthcare technology partner for deriving actionable insights from patient outcomes data. The PatientIQ platform is a cloud-based so… |
| Subsense | Palo Alto, California | $27M | Seed | September 3, 2026 | Subsense, Inc. is a neurotechnology company developing the first non-surgical, nanoparticle-based bidirectional brain-computer interface. Subsense is … |
| Lone Palm Labs | San Francisco, California | $21.1M | Series A | August 31, 2026 | Lone Palm Labs is a San Francisco-based provider of Retro, a private photo-sharing and consumer social platform. Founded in 2022, the company develops… |
| Stack Health | Columbus, Ohio | $21M | Seed | September 1, 2026 | Stack Health is a startup founded by Alex 'Fro' Frommeyer that aims to revolutionize the way small businesses approach health insurance. By offering e… |
| Aslan Protects | Washington, District of Columbia | $20.8M | Seed | September 2, 2026 | Aslan Protects is a defense technology and cyber intelligence startup based in Washington, D.C. Founded in 2025, it develops a specialized cyber defen… |
Frequently asked
Which US startups raised funding between August 31, 2026 and September 6, 2026?
25 US companies closed named venture rounds between August 31, 2026 and September 6, 2026, raising $2.33B in total. The largest were Zodia Custody ($400M, Series D), Medici Brands ($270.9M, Series B), Saviynt ($255M, Series B). Each round below is sourced from SEC filings and verified announcements, and excludes investment funds, IPOs and post-IPO placements.
What was the largest funding round of the week of August 31, 2026?
Zodia Custody of San Francisco raised $400M in a Series D round announced September 5, 2026. Zodia Custody is a digital asset custodian providing regulated custody operations for institutional clients. Its custody operations span Singapore, Hong Kong, A It was the largest US venture round recorded in this window across 25 qualifying rounds.
How many US venture rounds closed this week?
25 named US venture rounds closed between August 31, 2026 and September 6, 2026, totalling $2.33B. This counts only rounds with a named series (Seed through Series G+) by US-headquartered operating companies. Investment funds raising vehicles, IPOs, post-IPO equity and valuation-only reports are excluded so the figures reflect genuine startup fundraising.
These are the rounds. Fundz gives you the people to call at each one — verified decision-makers matched to your market, the moment a round lands.
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