# Steven Sinofsky, Board Member at a16z

> Steven Sinofsky, Board Member at a16z. 1 investment on record. The rounds they were named in and the filings that name them, each with its source.

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

Sioux Falls, US · Partner

# Steven Sinofsky

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

Latest rounds

- **Sochat** Seed · $2M Oct 2015

Backs *Consumer Apps*

Profile summary

- **Rounds named:** 1 last Oct 2015
- **Filings:** 3 with regulators
- **Podcasts:** 5 +5 mentions
- **Books:** 1 written

What this record rests on

- ✓ **Named in rounds** 1 round name them
- ✓ **On filings** 3 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=steven-sinofsky)[Is this you? Claim it](https://millionrounds.com/claim?person=steven-sinofsky)

## 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:** 1
- **Led:** 0
- **Disclosed:** $2M
- **Active:** 2015

2015

- [Sochat](https://millionrounds.com/company/sochat) *Seed* **$2M** Oct 2015 Joined · +8 investors · historical

By stage

- Seed **1**

What they backed

Consumer Apps **1**

Alongside

- [Betaworks *1*](https://millionrounds.com/fund/betaworks)
- [Eniac Ventures *1*](https://millionrounds.com/fund/eniac-ventures)
- [Foundation Capital *1*](https://millionrounds.com/fund/foundation-capital)
- [Greylock Partners *1*](https://millionrounds.com/fund/greylock-partners)
- [Maiden Lane *1*](https://millionrounds.com/fund/maiden-lane)
- [New Enterprise Associates *1*](https://millionrounds.com/fund/new-enterprise-associates)
- [Slow Ventures *1*](https://millionrounds.com/fund/slow-ventures)
- lead Allen Zhang *1*

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.

## Companies they are listed as backing

Portfolio

- [Fieldbook](https://millionrounds.com/startup/fieldbook)
- [Local Motion](https://millionrounds.com/startup/local-motion)
- [Sochat](https://millionrounds.com/startup/sochat)
- [Sugar](https://millionrounds.com/startup/sugar-inc-2)
- Spreadsheet.com

## Where they are named on record

Filings

- SEC Form D · Company raising **Everlaw, Inc.** Director on 3 filings · since 2018
- SEC Form D · Company raising **Tanium Inc.** Director on 3 filings · since 2015
- SEC Form D · Company raising **Product Hunt, Inc.** Director since 2014

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

## Also at Andreessen Horowitz

- [**Marc Andreessen** Co-Founder *38 rounds*](https://millionrounds.com/person/marc-andreessen)
- [**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)

## Their book

- One Strategy: Organization, Planning, and Decision Making Steven Sinofsky · 2009 3.64 from 97 ratings on Goodreads About the book Learn from the concepts, capabilities, processes, and behaviors that aligned around one strategy with the hard-won, first-person wisdom found in One Strategy. Challenging traditional views of strategy and operational execution, this book-written by Microsoft executive Steven… 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.

## Hear them before you pitch them

- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 25 Aug 2026 · 1h 4m The New Economics of AI | Martin Casado & Steven Sinofsky With [Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) Their book [One Strategy](https://millionrounds.com/person/steven-sinofsky#books) About this episode a16z General Partners Martin Casado and Erik Torenberg are joined by Board Partner Steven Sinofsky to explore what recent breakthroughs in AI and mathematics tell us about where the technology is headed, and whether some of the basic assumptions that have governed computing for decades are starting… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 2 Jun 2026 · 29 min Steven Sinofsky on AI PCs, NVIDIA, and the Future of Computing With [Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) Their book [One Strategy](https://millionrounds.com/person/steven-sinofsky#books) About this episode Theo Jaffee speaks with Steven Sinofsky about the next generation of personal computing and the growing role of AI-native hardware. The conversation covers NVIDIA’s entry into the PC market, Microsoft’s strategy for AI-powered devices, Apple’s hardware roadmap, and the long-running tension between… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 25 Aug 2025 · 56 min Aaron Levie and Steven Sinofsky on the AI-Worker Future With [Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) Their book [One Strategy](https://millionrounds.com/person/steven-sinofsky#books) Mentions [Aaron Levie](https://millionrounds.com/fund/aaron-levie)[Erik Torenberg](https://millionrounds.com/person/erik-torenberg) About this episode What exactly is an AI agent, and how will agents change the way we work? In this episode, a16z general partners Erik Torenberg and Martin Casado sit down with Aaron Levie (CEO, Box) and Steven Sinofsky (a16z board partner; former Microsoft exec) to unpack one of the hottest debates in AI right… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 11 Aug 2025 · 1h 17m Steven Sinofsky & Balaji Srinivasan on the Future of AI, Tech, & the Global World Order With [Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) Their book [One Strategy](https://millionrounds.com/person/steven-sinofsky#books) Mentions [Google](https://millionrounds.com/fund/google-assistant-investments)[Erik Torenberg](https://millionrounds.com/person/erik-torenberg) About this episode There’s been a wave of M&A deals lately - Meta and Scale, Windsurf and Google - and a lot of it points to something bigger: how regulation, capital, and innovation are colliding in 2025. In this episode Erik Torenberg brings together Steven Sinofsky, former Microsoft Executive and Balaji… More on the show's page Listen on Apple PodcastsThe show's page
- [TBPN](https://millionrounds.com/podcasts/tbpn) · 20 Jun 2025 · 3h 44m Cluely Raises $15M from a16z, $45M Modern Hacienda in the Wild | Steven Sinofsky, Anupam Singh, Miles Moen, Alexander Sen, Bryan Kim, Roy Lee, Dave Fontenot With [Anupam Singh](https://millionrounds.com/person/anupam-singh)[Bryan Kim](https://millionrounds.com/person/bryan-kim)[Dave Fontenot](https://millionrounds.com/person/dave-fontenot)[Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) Their book [One Strategy](https://millionrounds.com/person/steven-sinofsky#books) Mentions [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) About this episode (07:13) - $45M Modern Hacienda in the Wild (18:11) - Timeline (33:42) - Intern Tests Cluely Live (01:22:29) - Steven Sinofsky, a former Microsoft executive, led the development of Windows 7 and 8 before joining Andreessen Horowitz as a board partner. In the conversation, he reflects on his… More on the show's page Listen on Apple PodcastsThe show's page

### Mentioned in

Episodes that name Steven Sinofsky in their description, which is not the same as being on them.

- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 24 Apr 2026 · 1h 1m AI Inside the Enterprise Mentions [Aaron Levie](https://millionrounds.com/fund/aaron-levie)[Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) About this episode Steven Sinofsky, board partner at a16z, Aaron Levie, CEO of Box, and Martin Casado, general partner at a16z, discuss the reality of AI inside enterprises. They cover the gap between Silicon Valley and the rest of the world, why most AI initiatives fail in large organizations, and how agents,… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 24 Sept 2025 · 60 min Software finally eats services - Aaron Levie Mentions [Aaron Levie](https://millionrounds.com/fund/aaron-levie)[Martin Casado](https://millionrounds.com/person/martin-casado)[Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) About this episode Should the US put a price on H-1B visas, or would that block the flow of new talent? Are AI coding agents actually making teams way more productive, or is it just hype? And in the AI platform shift, will the big winners be incumbents or new AI-native startups? Erik Torenberg is joined by Box… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 27 Jun 2025 · 30 min Where We Are in the AI Cycle Mentions [Andrej Karpathy](https://millionrounds.com/fund/andrej-karpathy)[Anish Acharya](https://millionrounds.com/person/anish-acharya)[Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) About this episode In this episode of ‘This Week in Consumer’, a16z General Partners Anish Acharya and Erik Torenberg are joined by Steven Sinofsky - Board Partner at a16z and former President of Microsoft’s Windows division - for a deep dive on how today’s AI moment mirrors (and diverges from) past computing… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 18 Jun 2025 · 49 min How Apple Became So Reliant on China & What it Means For Their Future Mentions [Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky)[Tim Cook](https://millionrounds.com/person/tim-cook) About this episode What if the rise of Apple also built modern China? a16z’s Erik Torenberg is joined by board partner and former Microsoft Windows chief Steven Sinofsky to unpack how Apple’s pursuit of design excellence and supply chain scale catalyzed China’s manufacturing superpower status - and why that… More on the show's page Listen on Apple PodcastsThe show's page
- [The a16z Show](https://millionrounds.com/podcasts/a16z) · 6 Feb 2025 · 43 min DeepSeek: America’s Sputnik Moment for AI? Mentions [Alex Rampell](https://millionrounds.com/fund/alex-rampell)[Martin Casado](https://millionrounds.com/person/martin-casado)[Steven Sinofsky](https://millionrounds.com/person/steven-sinofsky) About this episode Two words have caught the Internet by storm. DeepSeek. The Chinese reasoning model r1 is rivaling others at the frontier with an open-source MIT license, methods that some claim may be 45x more efficient, an alleged $5.6m cost, the release of reasoning traces, a follow-on image model, and the… More on the show's page Listen on Apple PodcastsThe show's page

Episodes of [the shows we follow](https://millionrounds.com/podcasts), matched by name. Not them? [Tell us](https://millionrounds.com/corrections?person=steven-sinofsky).

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