# AI funding rounds led by Peak XV

Lead investor · Presspool · https://presspool.ai/investors/peak-xv

Peak XV led or co-led 2 funding rounds at 2 AI companies on Presspool's record, announced between October 22, 2026 and October 27, 2026. The most recent: Hex and BioStack.

| Company | Amount | Round | Announced | Co-leads |
| --- | --- | --- | --- | --- |
| [Hex](https://presspool.ai/companies/hex-tech) | $100 million | Series D | October 27, 2026 | 137 Ventures |
| [BioStack](https://presspool.ai/companies/getbiostack-com) | $9.5 million | Seed | October 22, 2026 | Afore Capital, [DCVC](https://presspool.ai/investors/dcvc), Emerson Collective, SV Angel, Verdict Capital, [Streamlined Ventures](https://presspool.ai/investors/streamlined-ventures), Y Combinator |

## Rounds by year

| Year | Rounds led | Led rounds announced in dollars | Round types led |
| --- | --- | --- | --- |
| 2026 | 2 | $110 million across 2 rounds | Series D, Seed |

## Co-investors

Investors named with Peak XV on the rounds above: 137 Ventures, Afore Capital, [DCVC](https://presspool.ai/investors/dcvc), Emerson Collective, [Streamlined Ventures](https://presspool.ai/investors/streamlined-ventures), SV Angel, Verdict Capital and Y Combinator.

## Each round and its sources

### 1. Hex: $100 million Series D

At a $1.2 billion valuation.

- Announced: October 27, 2026
- Company record: [Hex on Presspool](https://presspool.ai/companies/hex-tech)
- Listed in the [AI startup funding roster for October 26–31, 2026](https://presspool.ai/ai-startup-funding/week-of-2026-10-26)
- Sources: [Hex announcement](https://hex.tech/blog/hex-new-era), [Global Startups Insights](https://www.globalstartupsinsights.com/funding/san-francisco/hex-technologies-raises-100-million-series-d-at-1-2-billion-valuation)

### 2. BioStack: $9.5 million Seed

Release names all eight firms after "led by"; FinSMEs lists them as backers

- Announced: October 22, 2026
- Company record: [BioStack on Presspool](https://presspool.ai/companies/getbiostack-com)
- Listed in the [AI startup funding roster for October 18–24, 2026](https://presspool.ai/ai-startup-funding/week-of-2026-10-19)
- Sources: [BioStack (PR Newswire)](https://www.prnewswire.com/news-releases/biostack-raises-9-5m-to-turn-global-hospital-data-into-multimodal-training-datasets-for-medical-ai-302916123.html), [FinSMEs](https://www.finsmes.com/2026/10/biostack-raises-9-5m-in-seed-funding.html)

## What this page covers

Presspool records the lead investors of each round, as the company's announcement or the confirming outlets name them, and the other investors the round's entry names. This page lists the rounds this investor led on Presspool's record: every weekly AI startup funding roster, and the latest round of each company on a niche map. A round it joined without leading is listed when the round's entry names it, matched only to firms the record names as some round's lead. It is not the investor's full portfolio: rounds its sources did not name it in are not listed.

All lead investors: [Investors](https://presspool.ai/investors)

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Presspool is a sourced record of AI startup funding. Rounds are listed because they were publicly announced, and no company pays to be listed.

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