# AI funding rounds led by Lux Capital

Lead investor · Presspool · https://presspool.ai/investors/lux-capital

Lux Capital led or co-led 2 funding rounds at 2 AI companies on Presspool's record, announced between March 31, 2026 and October 21, 2026. The most recent: Flapping Airplanes and Crosby.

| Company | Amount | Round | Announced | Co-leads |
| --- | --- | --- | --- | --- |
| [Flapping Airplanes](https://presspool.ai/companies/flappingairplanes-com) | $1 billion | Series A | October 21, 2026 | [Index Ventures](https://presspool.ai/investors/index-ventures) |
| [Crosby](https://presspool.ai/companies/crosby-ai) | $60M | Series B | March 31, 2026 | [Index Ventures](https://presspool.ai/investors/index-ventures) |

## Rounds by year

| Year | Rounds led | Led rounds announced in dollars | Round types led |
| --- | --- | --- | --- |
| 2026 | 2 | $1.06 billion across 2 rounds | Series A, Series B |

## Maps its companies are on

- On the [Legal AI map](https://presspool.ai/niches/legal-ai) in the weekly sample of October 26, 2026: [Crosby](https://presspool.ai/companies/crosby-ai), named or cited in 4 of 54 answers.

## Co-investors

Investors named with Lux Capital on the rounds above: [Index Ventures](https://presspool.ai/investors/index-ventures) (2 rounds).

## Each round and its sources

### 1. Flapping Airplanes: $1 billion Series A

- Announced: October 21, 2026
- Company record: [Flapping Airplanes on Presspool](https://presspool.ai/companies/flappingairplanes-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: [Company announcement](https://x.com/flappyairplanes/status/2112955212612919318), [TechCrunch](https://techcrunch.com/2026/10/21/year-old-ai-lab-flapping-airplanes-raises-1b-at-a-6b-valuation/)

### 2. Crosby: $60M Series B

- Announced: March 31, 2026
- Company record: [Crosby on Presspool](https://presspool.ai/companies/crosby-ai)
- Sources: [crosby.ai](https://crosby.ai/blog/series-b-planting-our-flag), [law.com](https://www.law.com/legaltechnews/2026/03/31/legal-contracting-startup-crosby-secures-60m-in-series-b-round/)

## 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.

Published by [Jaxon Parrott](https://jaxonparrott.com). Jaxon Parrott coined [Machine Relations](https://machinerelations.ai) in 2024. [AuthorityTech](https://authoritytech.io), which he founded in 2018, is The World's First Machine Relations Agency.

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