---
title: "37 Medtech Investors in Massachusetts (Nov 2026): 32 in Boston"
last_updated: "2026-11-06"
rows: "37"
free_rows: "18"
source: "SEC Form D filings and our own research"
canonical: "https://theinvestordatabase.com/lists/medtech-investors-in-massachusetts/"
---

# 37 medtech investors in Massachusetts, including 32 in Boston

We list 37 medtech investors in Massachusetts as of November 2026: 36 have an SEC filing on file and 1 was checked on the firm's own website or an official register, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are Boston (19), Cambridge (9) and Waltham (2). 32 of the 37 are in the Boston metro area, so this page is also our list of medtech investors in Boston.

- 37 investors
- 22 with a fund filing or dated deal in the last 12 months
- $158M median fund size on file (SEC Form D, 26 firms)
- 199 named decision-makers on file

## First 18 of 37 medtech investors in Massachusetts

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| Cybernetix Ventures | VC firm | Boston, MA | Pre-seed, Seed, Series A | Medtech, Robotics, Industrial Tech, Logistics | New fund, Aug 2026 | $100M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/cybernetix-ventures/ |
| Safar Partners | VC firm | Cambridge, MA | Seed | Medtech, Healthtech, Industrial Tech, Biotech | New deal, Aug 2026 | $300M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/safar-partners/ |
| Equal Opportunity Ventures | VC firm | Cambridge, MA | Pre-seed | Medtech, Healthtech, Fintech, Food and Beverage | New deal, Apr 2026 | $152M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/equal-opportunity-ventures/ |
| MVM Partners LLP | VC firm | Boston, MA | Growth | Medtech, Healthtech, Biotech | Portfolio news, Jun 2026 | $1.0B (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/mvm-partners-llp/ |
| AMR Action Fund | VC firm | Boston, MA |  | Medtech, Healthtech, Biotech, Media | Portfolio news, Aug 2026 | $977M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/amr-action-fund/ |
| Winter Street Ventures | VC firm | Boston, MA | Seed, Series A | Medtech, Healthtech, AI | New fund, Jun 2026 | $75M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/winter-street-ventures/ |
| January Ventures | VC firm | Wellesley Hills, MA | Pre-seed | Medtech, Healthtech, AI, Future of Work | New fund, Jun 2026 | $15M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/january-ventures/ |
| Bioventures Investors | VC firm | Westborough, MA | Growth | Medtech, Healthtech, Future of Work, Fintech | New deal, Apr 2025 | $350M (SEC Form D, 2020) | 2026-11-05 | https://theinvestordatabase.com/investors/bioventures-investors/ |
| Catalyst Health Ventures | VC firm | Braintree, MA | Seed | Medtech, Healthtech | Portfolio news, Jun 2026 | $125M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/catalyst-health-ventures/ |
| Transformation Capital | VC firm | Boston, MA | Growth | Medtech, Healthtech | New fund, Sep 2026 | $800M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/transformation-capital/ |
| HLM Investment Partners | VC firm | Waltham, MA | Growth | Medtech, Healthtech | New fund, Aug 2026 | $61M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/hlm-investment-partners/ |
| Averin | VC firm | Andover, MA | Pre-seed | Medtech, Healthtech, AI, Robotics | New fund, Mar 2026 | $350M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/averin/ |
| LRVHealth | VC firm | Boston, MA |  | Medtech, Healthtech | New fund, Jan 2026 | $200M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/lrvhealth/ |
| W Health Ventures | VC firm | Boston, MA | Pre-seed | Medtech, Healthtech, AI, Semiconductor | New fund, Dec 2025 | $45M (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/w-health-ventures/ |
| Engine Ventures | VC firm | Cambridge, MA |  | Medtech, Energy, AI, Deep Tech | New fund, May 2026 | $500M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/engine-ventures/ |
| Delos Capital | VC firm | Cambridge, MA |  | Medtech, Biotech, Healthtech | Portfolio news, Sep 2026 |  | 2026-11-05 | https://theinvestordatabase.com/investors/delos-capital/ |
| F-Prime Capital | VC firm | Cambridge, MA | Any stage | Medtech, Healthtech, Biotech, Crypto and Web3 |  | $5.3B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/f-prime-capital/ |
| Thirdrockventures | VC firm | Boston, MA | Pre-seed, Seed | Medtech, Healthtech, Biotech | New fund, Jun 2026 | $1.1B (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/thirdrockventures/ |

You are seeing 18 of 37. The full list adds 19 more investors and 199 named decision-makers.

Get all 37 investors and 199 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/medtech-investors-in-massachusetts
This page: https://theinvestordatabase.com/lists/medtech-investors-in-massachusetts/

## 32 medtech investors in Boston
19 of the 32 have a fund filing or a dated deal in the last 12 months; the median fund size on file is $192M (SEC Form D, 21 firms); the most recent fund filings are from Transformation Capital (Sep 2026), Cybernetix Ventures (Aug 2026) and HLM Investment Partners (Aug 2026); of the 22 with a stage on file, seed (12), pre-seed (8) and Series A (6); the count covers the metro area, by city: Boston (19), Cambridge (9) and Waltham (2); the paid file holds 176 named decision-makers for them.
The first 5 in list order: Cybernetix Ventures, Safar Partners, Equal Opportunity Ventures, MVM Partners LLP and AMR Action Fund.

## Method and limits
- Source: 36 of the 37 rows carry an SEC filing (Form D or Form ADV). 36 of the 37 have a website we checked; the other 1 rests on the filing or register entry alone. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule: Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states medtech and medical devices as a focus on its own site, or we observed it in the firm's portfolio. Place: head office in Massachusetts.
- Order: Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Fill rates: Of 37 rows: stage 27, sector 37, fund size 35, website 36. In the paid file: named decision-makers on 35 rows, firm email on 11, LinkedIn page on 19, check size on 1.

## Questions
### How many medtech investors in Massachusetts are there?
We list 37 as of November 2026. 22 of the 37 have a fund filing or a dated deal in the last 12 months. The cities with the most are Boston (19), Cambridge (9) and Waltham (2).

### Which medtech investors in Massachusetts raised a new fund in the last 12 months?
14 of the 37 have a fund filing dated in the last 12 months. The most recent on this list are Transformation Capital (Sep 2026), Cybernetix Ventures (Aug 2026) and HLM Investment Partners (Aug 2026).

### What is the typical fund size of medtech investors in Massachusetts?
The median fund size on file for this list is $158M, across the 26 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 11 do not disclose a size there.

### How do I contact medtech investors in Massachusetts?
The paid file holds 199 named decision-makers across 35 of these 37 and a firm email for 11. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.

### Where does the data on medtech investors in Massachusetts come from?
36 of the 37 rows have an SEC filing on file (Form D or Form ADV) and 1 was checked on the firm's own website or an official register. Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 6 Nov 2026 at the latest. The whole file is re-verified twice a year.