Rachel Sheinbein
Investment Committee Member @ Portfolia
San Francisco, United States
Rachel Sheinbein is a Series A investor at Portfolia in San Francisco focused on Mobile and Health Care. Rachel Sheinbein is the Angel Invester at The Independent. She attended Massachusetts Institute of Technology.
- Total investments:
- 18
- Last investment:
- Lead investor:
- 22%
Last updated:
For AI agents: llms.txt
Industries Rachel Sheinbein invests in
Stages Rachel Sheinbein invests in
Countries Rachel Sheinbein invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Series A
- $2.7M–$15M
- Series B
- $14M–$40M
Investment Focus
Industry
- Mobile 2 (11%)
- Health Care 2 (11%)
- SaaS 1 (6%)
- VoIP 1 (6%)
- Energy 1 (6%)
Stage
- Series A 4 (22%)
- Seed 2 (11%)
- Series B 2 (11%)
- Pre-Seed 1 (6%)
- Series C 1 (6%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Parrable is a privacy-friendly identification platform. At the core of its technology is Parrable's proprietary and deterministic identification technology (patents pending) that unifies the user's profile across a given device connecting multiple browsers and apps together without the use of Personally Identifiable Information(PII). Parrable’s identification solution also solves the issue of third-party cookie restrictions in Safari. Given that identity is at the core of what is required for people-based marketing, Parrable provides visibility for marketers into 43% of the U.S. smartphone market that is currently unavailable for them (iOS Safari) where Apple smartphones yield the highest conversion rate. Parrable's Vision Product applies Artificial Intelligence to its existing technology using data (e.g. audience, conversion, click, intender data) to weigh buying decisions. This further enables marketers to reach the right user with the right message at the optimal time maximizing ROI. | $8M / Nov 06, 2021 | ||
| Parrable is a privacy-friendly identification platform. At the core of its technology is Parrable's proprietary and deterministic identification technology (patents pending) that unifies the user's profile across a given device connecting multiple browsers and apps together without the use of Personally Identifiable Information(PII). Parrable’s identification solution also solves the issue of third-party cookie restrictions in Safari. Given that identity is at the core of what is required for people-based marketing, Parrable provides visibility for marketers into 43% of the U.S. smartphone market that is currently unavailable for them (iOS Safari) where Apple smartphones yield the highest conversion rate. Parrable's Vision Product applies Artificial Intelligence to its existing technology using data (e.g. audience, conversion, click, intender data) to weigh buying decisions. This further enables marketers to reach the right user with the right message at the optimal time maximizing ROI. | $2.7M / Series A / Nov 06, 2021 | ||
| Topknot is the online personal development platform for women. With a unique blend of independent exercises and peer group feedback, Topknot supports women on their journey to building the life they want. By teaching skills rooted in coaching and mindfulness, Topknot's intentional interaction model empowers women to address what’s top of mindtoday, while also equipping them for tomorrow’s challenges–providing the space for processing, perspective, and accountability that leads to meaningful change. | $650K / Pre-Seed / Dec 16, 2020 | ||
| Voxeet enables WebRTC with crystal clear 3D surround sound, audio, and video experience and is particularly optimized for a mobile user.Voxeet is now clearly positioned as the leading real-time collaboration platform (cPaaS) that enables WebRTC with the only highly secure, crystal clear 3D surround-sound, audio, and video experience. After beingnamed a Gartner Cool Vendor 2016, we were just recognized as the 2017 "Hot Vendor" in Unified Communications and Collaboration (watch 1 min video) by Aragon Research. Their API library also enables screen sharing, presentation mode, broadcasting, call recording, translation, messaging, scheduling, and more. | Convertible Note / Mar 06, 2018 | ||
| Voxeet enables WebRTC with crystal clear 3D surround sound, audio, and video experience and is particularly optimized for a mobile user.Voxeet is now clearly positioned as the leading real-time collaboration platform (cPaaS) that enables WebRTC with the only highly secure, crystal clear 3D surround-sound, audio, and video experience. After beingnamed a Gartner Cool Vendor 2016, we were just recognized as the 2017 "Hot Vendor" in Unified Communications and Collaboration (watch 1 min video) by Aragon Research. Their API library also enables screen sharing, presentation mode, broadcasting, call recording, translation, messaging, scheduling, and more. | Seed / Feb 21, 2018 | ||
| Juvo was founded with an overarching vision: to establish financial identities for the billions of people worldwide who are creditworthy, yet financially excluded. In partnership with mobile network operators, Juvo’s proprietary Identity Scoring technology uses data science, machine learning and game mechanics to create an identity-basedrelationship with anonymous prepaid users, opening up access to otherwise unattainable mobile financial services. Juvo is a privately held company backed by global business leaders and luminaries in the world of tech, mobile and finance. Its executive team comprises accomplished industry leaders across the data science, consumer internet, financial services and mobile telecom fields. | $40M / Series B / Aug 01, 2017 | ||
| Sandstone Diagnostics offers a centrifuge system that provides plasma and serum collection at-home and the point-of-care. It specializes in the fields of clinical diagnostics, home healthcare, and fertility. It was founded in 2012 and headquartered in Pleasanton, California. | $2.2M / Venture - Series Unknown / Nov 10, 2016 | ||
| Parrable is a privacy-friendly identification platform. At the core of its technology is Parrable's proprietary and deterministic identification technology (patents pending) that unifies the user's profile across a given device connecting multiple browsers and apps together without the use of Personally Identifiable Information(PII). Parrable’s identification solution also solves the issue of third-party cookie restrictions in Safari. Given that identity is at the core of what is required for people-based marketing, Parrable provides visibility for marketers into 43% of the U.S. smartphone market that is currently unavailable for them (iOS Safari) where Apple smartphones yield the highest conversion rate. Parrable's Vision Product applies Artificial Intelligence to its existing technology using data (e.g. audience, conversion, click, intender data) to weigh buying decisions. This further enables marketers to reach the right user with the right message at the optimal time maximizing ROI. | Series A / Nov 01, 2016 | ||
| Sandstone Diagnostics is a Bay Area biotech company developing instruments and consumables for point-of-care medical testing. Sandstone’s lead product, Trak, is a consumer semen analysis platform that provides a simple and accurate way to monitor sperm quality from the comfort of home. Trak is a tool for men to take charge of their fertility,boost their sperm quality, and improve their chances of conception. Sandstone was co-founded in 2012 by Ph.D. scientists developing medical technologies for national defense applications at Sandia National Laboratories. | Series A / May 01, 2016 | ||
| Sandstone Diagnostics offers a centrifuge system that provides plasma and serum collection at-home and the point-of-care. It specializes in the fields of clinical diagnostics, home healthcare, and fertility. It was founded in 2012 and headquartered in Pleasanton, California. | Series A / May 01, 2016 | ||
| See all 18 investments → | |||
Co-Investors
About Portfolia
Portfolia connects sophisticated investors and leaders with entrepreneurial companies. Their platform enables users to collaborate with other members and lead investors to evaluate innovative products and teams, join diligence teams, and immerse themselves in the investment process. It is an investment fund designed for women while backinginnovative companies for returns and impact.
Portfolia Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Amber Caska
Investment Committee Member
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Trish Costello
Founder & CEO
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Valentina Vitols
Limited Partner
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Abbe Kligerman
Limited Partner
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Bethann Kassman
Deal Lead
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FAQ
What does Rachel Sheinbein invest in?
Rachel Sheinbein invests primarily in Mobile, Health Care and SaaS startups, most often at Series A and Seed stage. Most of the 18 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 Rachel Sheinbein invest in?
Rachel Sheinbein typically joins rounds of $2.7M–$15M at Series A and $14M–$40M at Series B. These are whole funding-round sizes, not Rachel Sheinbein's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Rachel Sheinbein took part in.
How do I contact Rachel Sheinbein?
Public channels for Rachel Sheinbein 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 Rachel Sheinbein last invest?
The most recent investment recorded for Rachel Sheinbein closed in Nov 2021. Shizune tracks 18 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 Nov 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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