# Shereen Shermak

> Shereen Shermak is a seed investor in Boston backing Internet and Health Care. See 6 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Boston, United States
- Total investments: 6
- Last investment: Sep 2014
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/pub/shereen-shermak/0/8a/400
- X (Twitter): https://twitter.com/shrcubed
- Website: https://x.com/shrcubed

Shereen Shermak is a seed investor in Boston focused on Internet and Health Care. Shereen is a Boston-based angel investor and entrepreneur who works with Flybridge Capital Partners and its general partners as an advisor to support and broaden the firm’s investment activities in the Boston region.Shereen served as a Fund Manager and CEO at Launch Angels, a Boston-based seed stage VC firm. She co-founded BuysideFX, where sheled Product and was a member of the management team, and held a similar role at Boston-based Currensee (acq. Oanda). Her earlier career consisted of launching internal fintech ventures for large financial services firms, after joining the technology strategy firm DiamondCluster (acq. PWC) in its early days. Shereen also spent six years working as an environmental engineer after graduating from Duke University’s School of Engineering.Shereen received her M.B.A. from MIT’s Sloan School and holds an M.P.A. from Harvard’s Kennedy School. She currently serves on the Board of Overseers of Big Brothers Big Sisters Massachusetts Bay.

## Contacts

5 contacts available for Shereen Shermak: 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/shereen-shermak?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $120k–$1.2M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Internet | 2 | 33% |
| Health Care | 2 | 33% |
| SaaS | 1 | 17% |
| Finance | 1 | 17% |
| eSports | 1 | 17% |

13 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 50% |
| Pre-Seed | 2 | 33% |
| Angel | 1 | 17% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Powerspike | Powerspike is a new type of advertising network based on content creators - where any marketer can make their brand famous in a few clicks. Our Endorsement Serving technology automatically buys, executes, and optimizes content creator endorsements - replacing the traditionally lengthy process of RFP’s, human negotiations, and insertion orders. | $500K | Angel | Aug 07, 2018 | http://www.powerspike.tv |
| Edmit | Edmit is an operator of an ed-tech platform designed to create greater price and value transparency in higher education. | $855K | Pre-Seed | Nov 16, 2017 | https://www.edmit.me |
| Jolt Athletics | Jolt is on a mission to help athletes train smarter and safer through innovative technology solutions. They aim to provide highly-functional and intuitive products that provide athletes, parents, and coaches real-time feedback, and enable them to make smarter more timely decisions. | $120K | Seed | Mar 09, 2015 | http://www.joltsensor.com |
| Logz.io | Logz.io provides an intelligent and scalable machine data analytics platform built on ELK and Grafana. Designed for monitoring modern applications, Logz.io combines cloud-native simplicity and scalability with crowdsourced artificial intelligence to help engineers identify critical issues before they occur and empower them to monitor, troubleshootand secure mission-critical applications using one unified platform. | $1.2M | Seed | Feb 17, 2015 | https://logz.io/ |
| Logz.io | Logz.io provides an intelligent and scalable machine data analytics platform built on ELK and Grafana. Designed for monitoring modern applications, Logz.io combines cloud-native simplicity and scalability with crowdsourced artificial intelligence to help engineers identify critical issues before they occur and empower them to monitor, troubleshootand secure mission-critical applications using one unified platform. |  | Pre-Seed | Sep 04, 2014 | https://logz.io/ |
| CarePort Health | CarePort Health is an online booking engine that identifies and connects with high-quality post-acute care providers. The company helps direct patients and families to learn about what type of care they may need, and what to expect during recovery, after filling in basic patient information. Patients can then search for post-hospital care providersand book care through CarePort Health's software. Hospitals can link to CarePort Health's network to help evaluate and manage patients, and connect them with the post-hospital care they will need. Finally, post-hospital care providers can connect with CarePort Health to make themselves available to the company's network and bring in additional business. They can also track patient progress. | $930K | Seed | Mar 01, 2013 | http://www.careporthealth.com |

6 of 6 investments shown.

## Co-investors
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund, 1 deal together
- [Cox Enterprises](https://shizune.co/investors/profile/cox-enterprises) — VC Fund, 1 deal together
- [Dorm Room Fund](https://shizune.co/investors/profile/dorm-room-fund) — VC Fund, 1 deal together
- [Elefund](https://shizune.co/investors/profile/elefund) — VC Fund, 1 deal together
- [Giza Venture Capital](https://shizune.co/investors/profile/giza-venture-capital) — VC Fund, 1 deal together
- [Mainspring Capital Partners](https://shizune.co/investors/profile/mainspring-capital-partners) — VC Fund, 1 deal together

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## FAQ

### What does Shereen Shermak invest in?

Shereen Shermak invests primarily in Internet, Health Care and SaaS startups, most often at Seed and Pre-Seed stage. Most of the 6 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 Shereen Shermak's check size?

Shereen Shermak typically joins rounds of $120k–$1.2M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Shereen Shermak participates in.

### How do I contact Shereen Shermak?

Public channels for Shereen Shermak include LinkedIn, X (Twitter) and the website linked on this profile. 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 Shereen Shermak last invest?

The most recent investment recorded for Shereen Shermak closed in Sep 2014. Shizune tracks 6 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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