# Boston Harbor Angels

> Boston Harbor Angels is a VC fund backing Health Care and Biotechnology. See 107 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Boston, United States
- Total investments: 107
- Last investment: Feb 2026
- Lead investor: 8%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/boston-harbor-angels-inc./
- X (Twitter): https://twitter.com/bhainvestors
- Website: http://www.bostonharborangels.com
- Facebook: https://www.facebook.com/boston-harbor-angels-358268851176559

Boston Harbor Angels is a group of proven business leaders interested in investing a portion of their assets in high growth, early stage companies. The group was formed in February 2004 and since then has made a number of investments in companies in medical devices, IT, consumer products, business products, specialty materials, Internet, aviation,etc. They believe they contribute more than money to the companies they fund and welcome the opportunity to work with entrepreneurs open to take advice, yet having the smarts and determination to make the company successful.Their focus is on early stage companies usually looking to raise $250K to $1.5M, where they can fund a portion of the round and syndicate the deal with other angel groups or early stage venture funds. The stage of the company should be close to commercialization, while the company should have a clear and defensible competitive advantage. They are looking for capital efficient businesses, which can reach profitability with less than $5M of equity investment and provide at least 10X return on the investment within 5 years.They do not invest as a fund - each of their members makes his or her individual investment decision but they collaborate in Due Diligence. They have a deep expertise in the life sciences field where they usually take the position of a lead investor, but are open to any opportunities that can make a strong business case. In some cases they prefer to be the follow on investor if they cannot identify a person with strong expertise within their group.The group’s strategy is directed by an executive committee which consists of 8 people elected by the group: Wayne Griffith (chairman), Bill McPhee, Henry Kay, Jay Schwartz (membership director), Steve Andress, Peter Miller, Don Freeman and Mic Williams (president and founder). The group’s day-to-day operations are managed by Boris Batchvarov (managing director).They receive 20-30 business summaries each month, out of which they select 8 companies to make a personal presentation to their screening committee. The screening committee consists of volunteers from the group. The presentations are 10 min long followed by 10 min Q&A. 4 of the companies are invited to present to the whole group, with the idea to get the people interested and decide to perform a Due Diligence with the companies before making an investment.

## Contacts

5 contacts available for Boston Harbor Angels. Shizune tracks 51 team members at Boston Harbor Angels. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/boston-harbor-angels?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $100k–$2.9M |
| Angel | $500k–$1.6M |
| Series A | $662k–$6M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 32 | 30% |
| Biotechnology | 32 | 30% |
| Medical Device | 13 | 12% |
| Medical | 11 | 10% |
| Manufacturing | 10 | 9% |

134 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Angel | 58 | 54% |
| Seed | 19 | 18% |
| Series A | 10 | 9% |
| Series B | 6 | 6% |
| Funding Round | 5 | 5% |

9 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 82 | 77% |
| Canada | 3 | 3% |
| India | 1 | 1% |
| Israel | 1 | 1% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Andrew Douglass | Member | 0 | https://shizune.co/investors/profile/andrew-douglass |
| Boris Batchvarov | Managing Director | 0 | https://shizune.co/investors/profile/boris-batchvarov |
| Candida Brush | Member | 0 | https://shizune.co/investors/profile/candida-brush |
| Cindy Devall | Member | 0 | https://shizune.co/investors/profile/cindy-devall |
| David J. Powsner | Member | 0 | https://shizune.co/investors/profile/david-j-powsner |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Gelmedix | Gelmedix is a developer of a biomaterial platform to improve drug delivery for complicated ophthalmic treatment. The company's platform offers a single non-invasive gel patch that can be used as a drug-eluting sealant with tissue adhesion, tunable drug elution, and biocompatibility properties, thereby enabling healthcare providers to reducethe usage of drops which cause inconvenience to patients. | $13M | Seed | Feb 17, 2026 |  |
| Astrocyte Pharmaceuticals | Astrocyte Pharmaceuticals Inc. is a privately held drug development company dedicated to accelerating the recovery and well-being of brain injury patients. The company is committed to proving the neuroprotective benefits of selective astrocyte activation, and advancing breakthrough therapeutic agents for treating brain injury resulting from stroke,TBI, concussion, and neurodegenerative disorders such as Alzheimer’s disease. | $6M | Series B | Aug 18, 2023 |  |
| Zylö Therapeutics | Zylö Therapeutics offers an innovative sustained-release drug-delivery system that was developed by Joel Friedman MD PhD, Adam Friedman MD FAAD, and Andrew Draganski PhD. The delivery system uses patented hydrogel-derived nanoparticles, called Nanopods, to deliver—in a sustained and controlled manner—notoriously hard-to-deliver therapeutic agentsthrough topical administration.The company was founded in 2017 and is based in Greenville, South Carolina. | $5.2M | Series B | Jun 03, 2022 |  |
| Xeno Biosciences | Xeno Biosciences operates as a biopharmaceutical company pioneering a novel class of therapeutics to address large unmet needs in metabolic diseases. Lead program, XEN-101, is a first-in-class, oral formulation designed to shift the gut microbiome to the weight-loss associated state induced by Roux-en-Y Gastric Bypass (RYGB) surgery.It wasfounded in 2015 and is headquartered in Somerville, Massachusetts. | $7.3M | Series A | Aug 08, 2021 |  |
| Astrocyte Pharmaceuticals | Astrocyte Pharmaceuticals Inc. is a privately held drug development company dedicated to accelerating the recovery and well-being of brain injury patients. The company is committed to proving the neuroprotective benefits of selective astrocyte activation, and advancing breakthrough therapeutic agents for treating brain injury resulting from stroke,TBI, concussion, and neurodegenerative disorders such as Alzheimer’s disease. | $6M | Series A | May 03, 2021 |  |
| S'More Date | S'More Date they provide daters with a totally interactive way to learn more about a person before evaluating them on appearance. | $2.1M | Seed | Jan 26, 2021 |  |
| Enrich Therapeutics | Enrich Therapeutics is a biotechnology startup focused on the development of novel single-cell isolation platform along with the critical life science applications. | $320K | Seed | Jul 15, 2020 |  |
| Powerplay | Mobile-based operating system to manage construction & architectural projects. PowerplayOS is a mobile app ecosystem that simplifies site-to-office communication to manage construction & architectural projects. Simplifying communication like-Material requestsMaterial inwarding notesGoods receiving notesPlanned scheduleHighlights,issues, RFIs, RFAs and more |  | Seed | Jan 01, 2020 |  |
| Zylö Therapeutics | Zylö Therapeutics offers an innovative sustained-release drug-delivery system that was developed by Joel Friedman MD PhD, Adam Friedman MD FAAD, and Andrew Draganski PhD. The delivery system uses patented hydrogel-derived nanoparticles, called Nanopods, to deliver—in a sustained and controlled manner—notoriously hard-to-deliver therapeutic agentsthrough topical administration.The company was founded in 2017 and is based in Greenville, South Carolina. | $4M | Series A | Sep 26, 2019 |  |
| Zylö Therapeutics | Zylö Therapeutics offers an innovative sustained-release drug-delivery system that was developed by Joel Friedman MD PhD, Adam Friedman MD FAAD, and Andrew Draganski PhD. The delivery system uses patented hydrogel-derived nanoparticles, called Nanopods, to deliver—in a sustained and controlled manner—notoriously hard-to-deliver therapeutic agentsthrough topical administration.The company was founded in 2017 and is based in Greenville, South Carolina. | $4M | Series A | Sep 26, 2019 |  |

10 of 107 investments shown.

## Co-investors
- [Beacon Angels](https://shizune.co/investors/profile/beacon-angels) — VC Fund, 13 deals together
- [Mass Medical Angels](https://shizune.co/investors/profile/mass-medical-angels) — VC Fund, 12 deals together
- [LaunchPad Venture](https://shizune.co/investors/profile/launchpad-venture-group) — VC Fund, 10 deals together
- [Maine Angels](https://shizune.co/investors/profile/maine-angels) — VC Fund, 9 deals together
- [Sidecar Angels](https://shizune.co/investors/profile/sidecar-angels) — VC Fund, 7 deals together
- [Cherrystone Angel Group](https://shizune.co/investors/profile/cherrystone-angel-group) — VC Fund, 6 deals together

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## FAQ

### What does Boston Harbor Angels invest in?

Boston Harbor Angels invests primarily in Health Care, Biotechnology and Medical Device startups, most often at Angel and Seed stage. Most of the 107 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 Boston Harbor Angels's check size?

Boston Harbor Angels typically joins rounds of $100k–$2.9M at Seed, $500k–$1.6M at Angel and $662k–$6M 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 Boston Harbor Angels participates in.

### How do I contact Boston Harbor Angels?

Public channels for Boston Harbor Angels 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.

### Who are the partners at Boston Harbor Angels?

The team at Boston Harbor Angels includes Andrew Douglass (Member), Boris Batchvarov (Managing Director) and Candida Brush (Member), among 51 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### 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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