# Russell Fradin

> Russell Fradin is a seed investor at Carbon Health backing Software and SaaS. See 20 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Carbon Health
- Location: San Francisco, United States
- Total investments: 20
- Last investment: Nov 2022
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/rfradin
- X (Twitter): http://twitter.com/rfradin
- Facebook: http://www.facebook.com/russfradin

Russell Fradin is a seed investor at Carbon Health in San Francisco focused on Software and SaaS. Russell Fradin is the Vice Chairman of Carbon Health. From October 2005 to April 2010, Russell co-founded and served as Chief Executive Officer of Adify Corporation, an on-line advertising company sold to Cox Enterprises. Prior to that time, Russell was comScore’s Executive Vice President of Corporate Development, Senior Vice President ofBusiness Development at Wine.com and Vice President of Business Development at Flycast Communications. Russell currently serves as a Member of the Board of Directors at comScore, TubeMogul and CoachArt and has previously served on the boards of Udemy, Outside.in and several others. Russell holds a B.S. degree in Economics from the Wharton School of Business at the University of Pennsylvania.

## Contacts

5 contacts available for Russell Fradin: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/russ-fradin?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.1M–$5.1M |
| Series A | $4M–$10M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 8 | 40% |
| SaaS | 3 | 15% |
| B2B | 2 | 10% |
| E-Commerce | 2 | 10% |
| E-Learning | 2 | 10% |

59 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 14 | 70% |
| Series A | 3 | 15% |
| Pre-Seed | 1 | 5% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Scoop | Scoop is a creator of multi-platform tools that enable businesses and workers to take advantage of flexible work arrangements.The company's platform provides the tools and information required to reduce operational costs while giving workers the opportunity to work from any location, making it simple for businesses to run both an in-officeand remote environment.Scoop was established in January 2015 by Rob Sadow and Jonathan Sadow in San Francisco, California. | $8M | Seed | Nov 17, 2022 |  |
| LIT Videobooks | LIT is a new platform that allows you to view bestselling business books in a new video book format. | $5M | Seed | Jul 08, 2021 |  |
| BeyondHQ | Workforce and workplace planning for distributed teams |  | Seed | May 27, 2019 |  |
| Linear Labs | The world has a bottomless appetite for electricity. In fact, 45% of the world's electricity passes through an electric motor. This is equivalent to 1 out of every 2 power plants solely dedicated to electric motors. And yet electric motor designs remain essentially unchanged in last 100 years. Linear Labs, an electric motor company, hascreated an entirely new family of electric motor systems designed for the next generation of electric vehicles, HVAC systems and robotics welcoming in a new era of smarter energy utilization. Our "smart"​ motors shape shift and morph the physical design in real time to adjust for changing conditions. The result is 2x improvements in torque, further range and significantly lowering power consumption.Linear Labs is a Texas based technology company.www.linearlabsinc.com | $4.5M | Seed | Mar 26, 2019 |  |
| Carbon Health | Carbon Health is a tech-enabled healthcare company that delivers virtual care experience. It offers primary care services through a mobile application that enables users to follow-up on a treatment plan, manage prescriptions, and see lab reports all through one app. Carbon Health has created a coronavirus assessment tool and also set up covid-19testing in California.The company was founded in 2015 and is headquartered in San Francisco, California. | $4.2M | Seed | Mar 30, 2017 |  |
| Scoop | Scoop is a creator of multi-platform tools that enable businesses and workers to take advantage of flexible work arrangements.The company's platform provides the tools and information required to reduce operational costs while giving workers the opportunity to work from any location, making it simple for businesses to run both an in-officeand remote environment.Scoop was established in January 2015 by Rob Sadow and Jonathan Sadow in San Francisco, California. | $5.1M | Seed | May 24, 2016 |  |
| Siftery | Siftery is a database of sorts where companies list their software stacks. Siftery compares companies with similar stacks and looks for differences to make some recommendations. | $4M | Seed | Feb 02, 2016 |  |
| Scoop | Scoop is a creator of multi-platform tools that enable businesses and workers to take advantage of flexible work arrangements.The company's platform provides the tools and information required to reduce operational costs while giving workers the opportunity to work from any location, making it simple for businesses to run both an in-officeand remote environment.Scoop was established in January 2015 by Rob Sadow and Jonathan Sadow in San Francisco, California. |  | Seed | Nov 02, 2015 |  |
| Radius Agent | Radius Agent is an online real estate brokerage focused on helping agents succeed. Agents keep 100% of their commissions while getting 100% support from the Radius team. Agents can use our tools even if they’re with another brokerage. Radius Agent features a 71,000+ social network of real estate agents, a referral marketplace to receive referrals,and an ISA that vets leads into buyer-ready clients. | $2.5M | Seed | Oct 19, 2015 |  |
| Radius Agent | Radius Agent is an online real estate brokerage focused on helping agents succeed. Agents keep 100% of their commissions while getting 100% support from the Radius team. Agents can use our tools even if they’re with another brokerage. Radius Agent features a 71,000+ social network of real estate agents, a referral marketplace to receive referrals,and an ISA that vets leads into buyer-ready clients. | $2.5M | Pre-Seed | Oct 19, 2015 |  |

10 of 20 investments shown.

## Co-investors
- [Signia Venture Partners](https://shizune.co/investors/profile/signia-venture-partners) — VC Fund, 4 deals together
- [Founders Fund](https://shizune.co/investors/profile/founders-fund) — VC Fund, 3 deals together
- [Accelerator Ventures](https://shizune.co/investors/profile/accelerator-ventures) — VC Fund, 2 deals together
- [AngelPad](https://shizune.co/investors/profile/angelpad) — VC Fund, 2 deals together
- [Cota Capital](https://shizune.co/investors/profile/cota-capital) — VC Fund, 2 deals together
- [Hinge Capital](https://shizune.co/investors/profile/hinge-capital) — VC Fund, 2 deals together

## About Carbon Health

VC Fund · San Francisco, United States

Carbon Health is a tech-enabled healthcare company that delivers virtual care experience. It offers primary care services through a mobile application that enables users to follow-up on a treatment plan, manage prescriptions, and see lab reports all through one app. Carbon Health has created a coronavirus assessment tool and also set up covid-19testing in California.The company was founded in 2015 and is headquartered in San Francisco, California.

5 contacts available at Carbon Health.

| Name | Title | Profile |
| --- | --- | --- |
| Russell Fradin | Vice Chairman | https://shizune.co/investors/profile/russ-fradin |
| Tom Berry | Co-founder & CTO | — |
| Ayo Omojola | Chief Product Officer | — |
| Baris Taze | VP of Engineering | — |
| Caesar Djavaherian | Co-Founder and Medical Director | — |

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## FAQ

### What does Russell Fradin invest in?

Russell Fradin invests primarily in Software, SaaS and B2B startups, most often at Seed and Series A stage. Most of the 20 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 Russell Fradin's check size?

Russell Fradin typically joins rounds of $1.1M–$5.1M at Seed and $4M–$10M 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 Russell Fradin participates in.

### How do I contact Russell Fradin?

Public channels for Russell Fradin include LinkedIn, X (Twitter) and Facebook. 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 Russell Fradin last invest?

The most recent investment recorded for Russell Fradin closed in Nov 2022. Shizune tracks 20 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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