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Boston Harbor Angels

Investor type Angel Group
Founders Mic Williams


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This summary is composed by our algorithm based on the analysis of the deals. If you think that some of this information is not accurate, please let us know about it and provide any supporting evidences if possible. Such cases will be analyzed by our ML-algorithm and implemented in our database, which will improve this summary.
Total investments 128
Average round size
The average size of a deal this fund participated in
Portfolio companies 107
Rounds per year 7.11
Lead investments 5
Follow on index
How often the fund supports its portfolio startups at next rounds
Exits 16
Key employees 2
Stages of investment
Early Stage Venture
Late Stage Venture

Areas of investment

  • Biotechnology
  • Health Care
  • Therapeutics
  • Medical Device
  • Medical

Boston Harbor Angels is the famous VC, which was founded in 2004. The venture was found in North America in United States. The leading representative office of defined VC is situated in the Boston.

The important activity for fund was in 2018. Despite it in 2019 the fund had an activity. The fund is constantly included in less than 2 investment rounds annually. Deals in the range of 1 - 5 millions dollars are the general things for fund. The higher amount of exits for fund were in 2015. This Boston Harbor Angels works on 18 percentage points less the average amount of lead investments comparing to the other organizations. The real fund results show that this VC is 3 percentage points less often commits exit comparing to other companies.

The usual cause for the fund is to invest in rounds with 4-5 partakers. Despite the Boston Harbor Angels, startups are often financed by Cherrystone Angel Group, Maine Angels, LaunchPad Venture Group. The meaningful sponsors for the fund in investment in the same round are LaunchPad Venture Group, Mass Medical Angels, Beacon Angels. In the next rounds fund is usually obtained by Maine Angels, Cherrystone Angel Group, LaunchPad Venture Group.

This organization was formed by Mic Williams. Besides them, we counted 2 critical employees of this fund in our database.

Besides, a startup needs to be aged 4-5 years to get the investment from the fund. The fund has exact preference in a number of founders of portfolio startups. If startup sums 4 of the founder, the chance for it to be financed is low. Among the most successful fund investment fields, there are Education, Pharmaceutical. Among the most popular portfolio startups of the fund, we may highlight Daktari Diagnostics, KnipBio, Vizibility. For fund there is a match between the country of its foundation and the country of its the most frequent investments - United States.

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Notable deals

CompanyIndustryRound SizeDateInvestorsLocation

Zylö Therapeutics

Health Care
$5M03 Jun 2022 Greenville, South Carolina, United States

Xeno Biosciences, Inc.

$7M08 Aug 2021 Massachusetts, United States

Astrocyte Pharmaceuticals

Clinical Trials
$6M03 May 2021 Cambridge, Massachusetts, United States

S'More Date

$2M26 Jan 2021 New York, New York, United States

Enrich Therapeutics

$320K15 Jul 2020 Worcester, Massachusetts, United States

01 Jan 2020 Bengaluru, Karnataka, India

Zylö Therapeutics

Health Care
$4M26 Sep 2019 Greenville, South Carolina, United States


Consumer Goods
$1M12 Sep 2019 Framingham, Massachusetts, United States


01 Jan 2019 Pittsburgh, Pennsylvania, United States


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