Stuart Ellman
Co-Founder & General Partner @ RRE Ventures
New York, United States
Stuart Ellman is a Series A investor at RRE Ventures in New York focused on Software and Financial Services. Stuart J. Ellman is based out of New York, New York, and is the founder and general partner of RRE Ventures. Stuart previously worked at 92nd Street Y as a chairman. Stuart J. Ellman attended the Harvard Business School. Stuart J. Ellman has been named to the Top 100 Harvard Business School Alumni in Finance & Investing.
- Total investments:
- 80
- Last investment:
- Lead investor:
- 28%
Last updated:
For AI agents: llms.txt
Industries Stuart Ellman invests in
Stages Stuart Ellman invests in
Countries Stuart Ellman invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 11 (14%)
- Financial Services 8 (10%)
- FinTech 6 (8%)
- Finance 5 (6%)
- Internet 5 (6%)
Stage
- Series A 16 (20%)
- Series B 16 (20%)
- Series C 15 (19%)
- Seed 11 (14%)
- Funding Round 7 (9%)
Country
- United States 41 (51%)
- Canada 2 (3%)
- Sweden 1 (1%)
- United Kingdom 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| AI assistant that helps consumers save time and money on healthcare and medical bills. | Pre-Seed / Aug 01, 2023 | ||
| Haystacks.AI uses real estate data, and numerous sources of ancillary data, to augment investment decisions in the single-family RE market. | $3M / Seed / Mar 23, 2022 | ||
| Fi is a provider of next Generation of Smart Dog Collars. | $30M / Series B / Feb 25, 2021 | ||
| Clearpath provides self-driving vehicle technology and services to over 500 of the world’s most innova-tive brands. Proprietary hardware, software, and services are delivered through the company’s industrial and research divisions: Clearpath Robotics and OTTO Motors. Visit www.clearpath.ai for more information. | $29.4M / Series C / Jun 01, 2020 | ||
| OTTO Motors, a division of Clearpath Robotics Inc. OTTO Motors provides autonomous mobile robots for material handling inside manufacturing facilities and warehouses. The vehicles operate with infrastructure-free navigation, offering intelligent, safe, efficient, and reliable transportation within industrial centers. Proprietary hardware, software,and services are delivered to provide customer excellence. | $29M / Series C / Jun 01, 2020 | ||
| Ladder is a digital life insurance company that offers flexible term coverage in minutes saving policyholders up to 40%. It uses an all-digital architecture and real-time underwriting to make life insurance as accessible, affordable, and beloved as it should be. The company was founded in 2015 and is headquartered in Palo Alto, California. Itoffers coverage up to $8M in all 50 states. | $37.5M / Series C / Feb 21, 2020 | ||
| SquareFoot serves companies that are looking for their next office and care deeply about finding the right next home. Growing companies require flexible lease options, a stress-free process, and transparency throughout the leasing journey. SquareFoot provides a seamless experience supported by easy-to-use technology and a highly responsive team ofreal estate professionals working to match specific client needs with a strong knowledge of what the market has to offer at any given moment. | $16M / Series B / Nov 06, 2019 | ||
| One Drop is a diabetes management platform that helps people navigate diabetes together. It is an app for a diabetes management company. The app was created by Jeff Dachis, a co-founder of Razorfish, launched in the App Store this April as a way to help diabetics keep a running log of their personal insulin levels, the effectiveness of theirmedication, what they recently ate and what types of activities are affecting their blood sugar on a daily basis.It was incorporated in 2014 and is based in New York. | $5M / Series B / Sep 17, 2019 | ||
| They create unique formulations of full-spectrum hemp in combination with other natural ingredients and harness them in microencapsulated capsules designed to increase their bioavailability. Then you put them to work.Inspired by both nature and medicine, they source single-origin plants to extract their full spectrum, meaning they take all thebeneficial nutrients and leave nothing out. All the fats, proteins, vitamins stay in the bottle – just like they should.Their measured dosing ensures that you take the recommended amount. Every time and in every pill. Equal dosage lets you customize your experience and tailor it to your needs. Rather than dealing with a messy, inconsistent dropper or a gummy bear that doesn’t get enough of the good stuff into your system, Kaleidoscope is the smart way to ingest CBD. It’s convenient and fits into your daily routine, even when your 24-hour-day starts to feel like 32.Nurturing body and mind, Kaleidoscope promotes health, helping to make you more effective in daily life. Kaleidoscope creates a sense of well-being and energy – based on your own pattern.When you take any pill, you deserve to know what’s in it. With their supplements, we promise transparency. We promise that what we print on their labels is what we put in their product. | $4M / Seed / Jul 08, 2019 | ||
| Players’ Lounge is a real money gaming platform built for video games. Gamers can wager on their own performance or stake others in competitive titles like Call of Duty, Fortnite, and Madden. Whether you’re playing or spectating, Players’ Lounge makes every match a chance to win real money — by betting on your own skill or backing the players youbelieve in.We’re capturing the next generation of bettors — digital natives who prefer interactive, creator-driven experiences over traditional sports. Players’ Lounge turns every match and livestream into a high-stakes opportunity, merging gaming, streaming, and social wagering into one immersive ecosystem. | $3M / Seed / Mar 28, 2019 | ||
| See all 80 investments → | |||
Co-Investors
About RRE Ventures
RRE Ventures is a venture capital firm that invests in early-stage technology companies across various sectors. RRE Ventures invests in early-stage companies, often participating in Seed and Series A funding rounds. They look for innovative technology solutions and scalable business models.
RRE Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Stuart Ellman
Co-Founder & General Partner
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Ana Rosenstein
Senior Associate
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James Robinson
Co-Founder, General Partner, and Managing Partner
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James Robinson
Founder & General Partner
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John R. Hass
Partner
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FAQ
What does Stuart Ellman invest in?
Stuart Ellman invests primarily in Software, Financial Services and FinTech startups, most often at Series A and Series B stage. Most of the 80 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Stuart Ellman?
Public channels for Stuart Ellman 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 Stuart Ellman last invest?
The most recent investment recorded for Stuart Ellman closed in Aug 2023. Shizune tracks 80 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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