John O'Farrell
General Partner @ Andreessen Horowitz
San Francisco, United States
John O'Farrell is a Series B investor at Andreessen Horowitz in San Francisco focused on SaaS and Software. John O’Farrell is based out of San Francisco, California and currently works as National board member for UNICEF. John previously worked at Andreessen Horowitz as a general partner. John attended the Stanford Graduate School of Business.
- Total investments:
- 14
- Last investment:
- Lead investor:
- 14%
Last updated:
For AI agents: llms.txt
Industries John O'Farrell invests in
Stages John O'Farrell invests in
Countries John O'Farrell invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Series A
- $6.2M–$7M
- Series B
- $16M–$30M
- Series D
- $13M–$120M
Investment Focus
Industry
- SaaS 4 (29%)
- Software 2 (14%)
- Analytics 2 (14%)
- Agriculture 2 (14%)
- Collaboration 2 (14%)
Stage
- Series B 4 (29%)
- Series A 3 (21%)
- Series D 3 (21%)
- Series E 2 (14%)
- Seed 1 (7%)
Country
- United States 6 (43%)
- Ireland 1 (7%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| ItsOn is a proven leader in the carrier space, and enables wireless carriers to fundamentally change how mobile services are marketed, delivered and consumed. The company was founded in 2008, launched the world’s first end-to-end solution for virtual policy and billing in 2014 and supports key carrier accounts such as Sprint and Virgin Mobile. Thecompany is privately held and headquartered in Redwood City, CA. For more information, please visit www.itsoninc.com or follow @ItsOnInc on Twitter. | $12.5M / Series D / Dec 10, 2015 | ||
| ChangeX is a platform connecting communities to proven social and environmental innovations and the finance and resources to get them started. | $437.2K / Seed / Jul 22, 2015 | ||
| Granular is a software and analytics platform that helps farmers operate more efficiently and make better business decisions.It powers the world’s most efficient farms. The company’s cloud software and analytics platform help farmers become more efficient and make better business decisions and is backed by Silicon Valley investors AndreessenHorowitz, Google Ventures, and Khosla Ventures.It was founded in 2014 and headquartered in San Francisco, California. | $18.7M / Series B / Jul 22, 2015 | ||
| Slack is a cloud-based communication and collaboration platform for teams. It allows users to exchange messages, share files, and integrate with various business tools and services. Slack is commonly used across various industries, from tech startups to large enterprises. | $172.7M / Series E / Apr 16, 2015 | ||
| Slack is a cloud-based communication and collaboration platform for teams. It allows users to exchange messages, share files, and integrate with various business tools and services. Slack is commonly used across various industries, from tech startups to large enterprises. | $120M / Series D / Oct 31, 2014 | ||
| GoodData provides the platform and expertise for enterprises to create Smart Business Applications that harness your existing data to help you automate, recommend and take better business actions faster and with more reliability. They drive competitive value, performance, and profit by significantly enhancing the data-driven business processesacross the enterprise and its business ecosystem by bringing analytics to the point-of-work.Their clients include enterprises like Penton that need to deliver revenue-generating data products to their clients and software companies like Zendesk that market their own Smart Business Applications using GoodData.It was founded in 2007 and headquartered in San Francisco, California. | $25.7M / Series E / Sep 10, 2014 | ||
| IFTTT is the world’s leading connectivity platform. We help over 700 global enterprises accelerate the digital transformation of their products into integrated services, dramatically reducing their development costs while extending compatibility and lifetime value. IFTTT is the connectivity standard and low-code alternative to building your ownintegrations in-house.Our products have attracted 18 million consumers across 140 countries and served over 100 million activated connections. Enterprises like Domino’s, Amazon, Bosch, ING, and Samsung trust IFTTT for their connectivity solutions. | $30M / Series B / Aug 29, 2014 | ||
| Slack is a cloud-based communication and collaboration platform for teams. It allows users to exchange messages, share files, and integrate with various business tools and services. Slack is commonly used across various industries, from tech startups to large enterprises. | $42.8M / Series C / Apr 27, 2014 | ||
| Granular is a software and analytics platform that helps farmers operate more efficiently and make better business decisions.It powers the world’s most efficient farms. The company’s cloud software and analytics platform help farmers become more efficient and make better business decisions and is backed by Silicon Valley investors AndreessenHorowitz, Google Ventures, and Khosla Ventures.It was founded in 2014 and headquartered in San Francisco, California. | $6.2M / Series A / Feb 23, 2014 | ||
| GoodData provides the platform and expertise for enterprises to create Smart Business Applications that harness your existing data to help you automate, recommend and take better business actions faster and with more reliability. They drive competitive value, performance, and profit by significantly enhancing the data-driven business processesacross the enterprise and its business ecosystem by bringing analytics to the point-of-work.Their clients include enterprises like Penton that need to deliver revenue-generating data products to their clients and software companies like Zendesk that market their own Smart Business Applications using GoodData.It was founded in 2007 and headquartered in San Francisco, California. | $22M / Series D / Jun 12, 2013 | ||
| See all 14 investments → | |||
Co-Investors
About Andreessen Horowitz
Andreessen Horowitz supplies capital deployments across multiple development phases, ranging from early-stage seed investments to late-stage growth financing. Its specialized market coverage spans diverse sectors, including artificial intelligence, biological healthcare, consumer technologies, decentralized cryptocurrency networks, financial technology, and enterprise software infrastructure. Beyond capital allocations, the organization delivers operational support services by connecting corporate portfolio entities with a structured ecosystem of technical advisors, executive talent, and industry operators.
Andreessen Horowitz Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Andrew Chen
General Partner
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Anish Acharya
General Partner
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David George
General Partner
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Emily Bennett
investing partner
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Gabriel Vasquez
Partner
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FAQ
What does John O'Farrell invest in?
John O'Farrell invests primarily in SaaS, Software and Analytics startups, most often at Series B and Series A stage. Most of the 14 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does John O'Farrell invest in?
John O'Farrell typically joins rounds of $6.2M–$7M at Series A, $16M–$30M at Series B and $13M–$120M at Series D. These are whole funding-round sizes, not John O'Farrell's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds John O'Farrell took part in.
How do I contact John O'Farrell?
Public channels for John O'Farrell include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did John O'Farrell last invest?
The most recent investment recorded for John O'Farrell closed in Dec 2015. Shizune tracks 14 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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