# Sarah Friar

> Sarah Friar is a seed investor at OpenAI (San Francisco) backing FinTech and Software. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [OpenAI](https://shizune.co/investors/profile/openai)
- Location: San Francisco, United States
- Total investments: 8
- Last investment: Jun 2026
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/pub/sarah-friar/4/b04/922
- X (Twitter): https://twitter.com/thefriley
- Website: https://x.com/thefriley
- Facebook: https://www.facebook.com/sarah.friar

Sarah Friar is a seed investor at OpenAI in San Francisco focused on FinTech and Software. Sarah Friar is the Chief Financial Officer of OpenAI. Sarah previously worked at Nextdoor as a Chief Executive Officer. Sarah Friar attended Stanford Graduate School of Business.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $3.4M–$10M |
| Series A | $15M–$32M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| FinTech | 2 | 25% |
| Software | 2 | 25% |
| SaaS | 1 | 13% |
| Fashion | 1 | 13% |
| Finance | 1 | 13% |

26 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 5 | 63% |
| Series A | 2 | 25% |
| Series B | 1 | 13% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 3 | 38% |
| United Kingdom | 3 | 38% |
| Israel | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Build | AI for the Built World. We accelerate the world’s most important projects from concept to completion and beyond. | $8.5M | Seed | Jun 30, 2026 |  |
| RESPONSIBLE | RESPONSIBLE is a circular fashion platform offering new technology and solutions to help keep more products in rotation supporting the journey towards a more sustainable future for fashion. | $6.6M | Seed | Jan 10, 2022 |  |
| MedAll | MedAll is a training platform for healthcare professionals and students: a 'virtual medical school'. MedAll enables healthcare organisations to deliver and store their training courses, conferences and teaching sessions in one place - and to share that training with the healthcare community internationally. | $3.4M | Seed | Jan 05, 2022 |  |
| Cloudsmith | Cloudsmith provides a cloud-native platform for managing software artifacts, acting as a centralized system where packages, container images, and other development assets are stored and controlled. The platform supports a wide range of package formats and integrates with developer tools, CI/CD pipelines, and security systems to streamlinesoftware development workflows. It enables organizations to secure their software supply chain through features such as vulnerability scanning, policy enforcement, and access controls that govern how artifacts are used and distributed. Cloudsmith also delivers artifacts through a global distribution network, allowing teams to access and share software components with low latency across different regions. Additionally, it offers tools such as APIs, command-line interfaces, and automation capabilities to manage repositories, monitor usage, and maintain visibility over software assets throughout their lifecycle. | $15M | Series A | Sep 21, 2021 |  |
| Belong | Belong is a residential network that vertically integrates all aspects of the home rental and home improvement process. Powered by AI. Made and loved by People. | $40M | Series B | Mar 09, 2021 |  |
| UNIPaaS Payments Technologies | UNIPaaS is a payment solution that enables digital platforms and marketplaces to own, manage, and monetize from financial services. Digital marketplaces and B2B platforms can now own their payment experience and control their funds' flow. They are transforming how businesses integrate and handle payments, reducing financial operations costs,and accelerating the implementation of new growth engines powered by payments and financial services. By monetizing these activities and providing these new services to customers in the right context, digital platforms can effectively increase stickiness, and lifetime value, and generate additional revenues.UNIPaaS was founded in 2020 and is based in Israel. | $10M | Seed | Feb 09, 2021 |  |
| Bond | Bond is an enterprise-grade financial technology platform streamlining the integration between brands and banks, dramatically reducing friction and creating a more repeatable model. Through its AI-powered infrastructure, Bond enables digital brands to better engage their customers by offering personalized and compliant banking products. | $32M | Series A | Jul 15, 2020 |  |
| Bond | Bond is an enterprise-grade financial technology platform streamlining the integration between brands and banks, dramatically reducing friction and creating a more repeatable model. Through its AI-powered infrastructure, Bond enables digital brands to better engage their customers by offering personalized and compliant banking products. | $10M | Seed | Aug 27, 2019 |  |

8 of 8 investments shown.

## Co-investors
- [Techstart Ventures](https://shizune.co/investors/profile/techstart-ventures) — VC Fund, 3 deals together
- [Mastercard](https://shizune.co/investors/profile/mastercard) — VC Fund, 2 deals together
- [TPY Capital](https://shizune.co/investors/profile/tpy-capital) — VC Fund, 2 deals together
- [Amaranthine](https://shizune.co/investors/profile/amaranthine-partners) — VC Fund, 1 deal together
- [Andreessen Horowitz](https://shizune.co/investors/profile/andreessen-horowitz) — VC Fund, 1 deal together
- [Ascension](https://shizune.co/investors/profile/ascension-ventures-limited) — VC Fund, 1 deal together

## About OpenAI

VC Fund · San Francisco, United States

OpenAI is an AI research and deployment company that conducts research and develops machine learning technologies. OpenAI works on projects that involve autonomous learning and task performance. It serves industries such as technology, healthcare, and education.

5 contacts available at OpenAI.

| Name | Title | Profile |
| --- | --- | --- |
| Hemal Shah | Product | https://shizune.co/investors/profile/hemal-shah |
| Hessam Bagherinezhad | Member of Technical Staff | https://shizune.co/investors/profile/hessam-bagherinezhad-b28a |
| Sarah Friar | CFO | https://shizune.co/investors/profile/sarah-friar |
| Scott Gray | Member of Technical Staff | https://shizune.co/investors/profile/scott-gray-4 |
| Venkat Venkataramani | VP of Platform Infrastructure | https://shizune.co/investors/profile/venkat-venkataramani |

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## FAQ

### What does Sarah Friar invest in?

Sarah Friar invests primarily in FinTech, Software and SaaS startups, most often at Seed and Series A stage. Most of the 8 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Sarah Friar's check size?

Sarah Friar typically joins rounds of $3.4M–$10M at Seed and $15M–$32M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sarah Friar participates in.

### When did Sarah Friar last invest?

The most recent investment recorded for Sarah Friar closed in Jun 2026. Shizune tracks 8 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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