# Marc Andreessen at Andreessen Horowitz

> Marc Andreessen, Co-Founder at Andreessen Horowitz. 38 investments on record. The rounds they were named in and the filings that name them, each with its...

Source: https://millionrounds.com/person/marc-andreessen (Millionrounds; every figure on the page links to its filing or article)

Menlo Park, US · Operator

# Marc Andreessen

Co-Founder at [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz)

Latest rounds

- **Electric Twin** Seed · $10M Feb 2026
- **Trans*H4CK** Grant · $85k Nov 2014
- **reddit** Series B · $50M Sept 2014

Backs *Media* *Professional Services* *Healthcare* *Big Data & Analytics*

Profile summary

- **Rounds named:** 38 last Nov 2014
- **Filings:** 20 with regulators
- **Books:** 1 written

What this record rests on

- ✓ **Named in rounds** 38 rounds name them
- ✓ **On filings** 20 filings with a regulator
- ✓ **Linked to a firm** At Andreessen Horowitz
- **Claimed** Not claimed yet

Titles come from filings their firm signed.

[Correct or remove](https://millionrounds.com/corrections?person=marc-andreessen)[Is this you? Claim it](https://millionrounds.com/claim?person=marc-andreessen)

## The firm

[**Andreessen Horowitz** VC firm · US **320** cheques in 12 months **1649** all time **110** led deploying](https://millionrounds.com/fund/andreessen-horowitz)

## Rounds they were named in

- **Rounds:** 39
- **Led:** 0
- **Disclosed:** $308.6M
- **Active:** 1999–26

2026

- [Electric Twin](https://millionrounds.com/company/electric-twin) *Seed* **$10M** *GB* Feb 2026 Joined · +7 investors

2014

- [Trans*H4CK](https://millionrounds.com/company/trans-h4ck) *Grant* **$85k** *US* Nov 2014 Joined · +1 investor · historical
- [reddit](https://millionrounds.com/company/reddit) *Series B* **$50M** *US* Sept 2014 Joined · +15 investors · historical
- [Halo Neuroscience](https://millionrounds.com/company/halo-neuroscience) *Seed* **$1.5M** *US* May 2014 Joined · +1 investor · historical

2013

- [AngelList](https://millionrounds.com/company/angellist) *Series B* **$24M** *US* Sept 2013 Joined · +31 investors · historical
- [Muzy](https://millionrounds.com/company/muzy) *Seed* **$4.4M** *US* Jun 2013 Joined · +4 investors · historical
- [PandoDaily](https://millionrounds.com/company/pandodaily) *Seed* **$3M** *US* May 2013 Joined · +19 investors · historical

2011

- [Business Insider](https://millionrounds.com/company/business-insider) *Venture* **$7M** *US* Sept 2011 Joined · +5 investors · historical

2010

- [Business Insider](https://millionrounds.com/company/business-insider) *Series D* **$3M** *US* Jul 2010 Joined · +5 investors · historical

2009

- [Fluther](https://millionrounds.com/company/fluther) *Seed* **$600k** *US* Sept 2009 Joined · +6 investors · historical
- [Business Insider](https://millionrounds.com/company/business-insider) *Series B* **$2.7M** *US* May 2009 Joined · +2 investors · historical
- [ExtraHop Networks](https://millionrounds.com/company/extrahop-networks) *Series A* **$5.1M** *US* Apr 2009 Joined · +2 investors · historical

By stage

- Seed **16**
- Series A **11**
- Series B **5**
- Venture **2**
- Round **1**

What they backed

Media **4** Professional Services **2** Healthcare **1** Big Data & Analytics **1** AI **1** IT Services **1**

Alongside

- [Allen & Company *3*](https://millionrounds.com/fund/allen-and-company)
- [Ben Horowitz *3*](https://millionrounds.com/fund/ben-horowitz)
- [500 Startups *2*](https://millionrounds.com/fund/500-startups)
- [CrunchFund *2*](https://millionrounds.com/fund/crunchfund-3)
- [Matthew Luckett *2*](https://millionrounds.com/fund/matthew-luckett)
- [Ooga Labs *2*](https://millionrounds.com/fund/ooga-labs)
- [Peter Thiel *2*](https://millionrounds.com/fund/peter-thiel)
- [RRE Ventures *2*](https://millionrounds.com/fund/rre-ventures)

The latest 12 of 39. Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names.

## Where they are named on record

Filings

- SEC Form D · Venture Capital fund **[ELEAH](https://millionrounds.com/fund/eleah)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[AH AD](https://millionrounds.com/fund/ah-ad)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[ATOAH](https://millionrounds.com/fund/atoah)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[DATAH](https://millionrounds.com/fund/datah)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[Carolah](https://millionrounds.com/fund/carolah)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[AH AI](https://millionrounds.com/fund/ah-ai)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[AH Crypto Fund V-B](https://millionrounds.com/fund/ah-crypto-fund-v-b)** Managing Member of the GP of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[AH American Dynamism Fund II-B](https://millionrounds.com/fund/ah-american-dynamism-fund-ii-b)** Managing Member of the GP of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[CURAH](https://millionrounds.com/fund/curah)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[AH Crypto](https://millionrounds.com/fund/ah-crypto)** Ultimate managing member of the Issuer's GP on 2 filings · since 2026
- SEC Form D · Venture Capital fund **[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz)** Ultimate managing member of the Issuer's GP on 4 filings · since 2026
- SEC Form D · Venture Capital fund **[AH American Dynamism](https://millionrounds.com/fund/ah-american-dynamism)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Other investment fund **AH 2026 Fund Multiplexer (Blocked) II, L.P.** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Other investment fund **AH 2026 Fund Multiplexer (Unblocked) II-C, L.P.** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Other investment fund **AH 2026 Fund Multiplexer (Blocked) II-C, L.P.** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Other investment fund **AH 2026 Fund Multiplexer (Unblocked) II, L.P.** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[Innovation](https://millionrounds.com/fund/innovation)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[TAP Investment](https://millionrounds.com/fund/tap-investment)** Ultimate managing member of the Issuer's GP since 2026
- SEC Form D · Venture Capital fund **[CURAH](https://millionrounds.com/fund/curah)** Member of the GP LLC since 2025
- SEC Form D · Venture Capital fund **[AH Bio Fund V-B](https://millionrounds.com/fund/ah-bio-fund-v-b)** Managing Member of the GP of the Issuer's GP since 2025

Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date.

## Also at Andreessen Horowitz

- [**Ben Horowitz** Horowitz *10 rounds*](https://millionrounds.com/person/ben-horowitz)
- [**Jeff Jordan** Managing Partner at A16z *8 rounds*](https://millionrounds.com/person/jeff-jordan)
- [**David Ulevitch** Council Member *6 rounds*](https://millionrounds.com/person/david-ulevitch)
- [**Lars Dalgaard** Board Member / Board Partner *4 rounds*](https://millionrounds.com/person/lars-dalgaard)
- [**Steve Papa** Founder and CEO *2 rounds*](https://millionrounds.com/person/steve-papa)
- [**Arianna Simpson** Managing Partner *1 round*](https://millionrounds.com/person/arianna-simpson)
- [**Peter Johnson** GTM *1 round*](https://millionrounds.com/person/peter-johnson-3)
- [**Peter Levine** General Partner *1 round*](https://millionrounds.com/person/peter-levine)

## Their book

- The pmarca Blog Archives Marc Andreessen · 2015 4.54 from 195 ratings on Goodreads About the book The Pmarca Blog Archive Is Back… as an Ebook Somewhere along the way Marc Andreessen went from being pmarca to @pmarca. He took down his popular blog, and years later took up tweetstorming. But by popular request, you can now also download many of his older blog posts, The… On AmazonListen on Audible
- Find the books for what you are building, or how you invest. [Open the Reading List](https://millionrounds.com/reading-list)

As an Amazon Associate we earn from qualifying purchases.

## Find people like Marc

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