# GreyBird Ventures

GreyBird Ventures is a Venture Capital based in Concord, United States.

## Overview

- **Organization type:** Venture Capital
- **Headquarters:** Concord, United States
- **Region:** North America
- **Address:** Concord, MA, United States
- **Founded:** 2013
- **Assets under management:** Undisclosed
- **Website:** www.greybirdventures.com
- **LinkedIn:** https://www.linkedin.com/company/greybird-ventures-llc

## Regulatory record

- **Reports private funds:** No

## About

An early stage venture capital firm we invest in companies with technology for precision medicine diagnosis. The technologies in focus have the characteristics of very high specificity and the capability to dramatically improve the choice of optimum therapy and reduce cost. Our companies will have a well-protected IP position and management with deep domain knowledge and a sense of creative thrift. Founded by Michael Devlin and Tom Miller, we are in the early stages of fund-raising but already have investments in prototypical portfolio companies. We have also recruited a team of eight operating advisors located in North America, Europe, and Asia with extremely deep domain expertise and operating experience.

## Sectors

- Digital Health
- Diagnostics
- Medical Devices
- Enterprise Software

## Offices

- Rockport, ME, United States

## People

- Tom Miller — Founder & Managing Partner
- Michael Devlin — Founder
- Scott Gazelle — Founder & Partner
- Neil Wyant — Managing Director
- Trevor L. Hawkins — Operating Advisor

## Questions

### Who runs investment decisions at GreyBird Ventures?

Founder and Managing Partner Tom Miller leads investment decisions, supported by co-founders Michael Devlin and Scott Gazelle. Miller's background as CEO of Siemens Healthcare gives the firm a distinct operational orientation toward medtech and diagnostics. The investment team operates from offices in Concord, Massachusetts, and Rockport, Maine.

### How does GreyBird Ventures source investment opportunities?

The firm's founding team draws on decades of operating experience inside global medtech companies to identify companies solving real procurement and clinical-workflow problems inside hospital systems. Tom Miller's Siemens Healthcare network provides visibility into emerging technologies that address the integration challenges large health systems face. The firm also accesses deal flow through its membership in the Personalized Medicine Coalition.

### What is the relationship between GreyBird Ventures and the Personalized Medicine Coalition?

GreyBird is a member firm of the Personalized Medicine Coalition, an industry association that advocates for precision medicine adoption and reimbursement. The membership aligns with GreyBird's investment thesis around molecular diagnostics and targeted therapies, providing the firm with policy insight and industry connectivity that informs its deal evaluation and portfolio support.

### Where does GreyBird Ventures' capital come from?

The firm does not publicly disclose the composition of its limited partner base or the specific source of its investment capital. The founding principals — Tom Miller, Michael Devlin, and Scott Gazelle — each brought capital and relationships from prior operating and investing careers. The firm has not made public statements about whether it manages a single commingled fund, a series of SPVs, or a permanent capital vehicle.

## Related profiles

- [Greslet Equity](https://altss.com/profile/greslet-equity)
- [Greybrook](https://altss.com/profile/greybrook)

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Last updated: 2026-06-03T20:00:00.000Z

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