# Granahan Investment Management

Granahan Investment Management is an Asset Manager based in Waltham, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Waltham, United States
- **Region:** North America
- **Address:** Waltham, MA, United States
- **Founded:** 1985
- **Assets under management:** $2B–$5B (Altss estimate)
- **Website:** www.granahan.com
- **LinkedIn:** https://www.linkedin.com/company/granahan-investment-management-inc

## Regulatory record

- **CRD number:** 107745
- **SEC file number:** 801-23705
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-03-26T05:00:00.000Z
- **Reports private funds:** No
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/107745

## About

Granahan Investment Management is an SEC-registered investment adviser in WALTHAM, MA, registered since 1985. The firm manages approximately $2.4 billion in assets. It has 20 employees and 8 investment advisers.

## Sectors

- Enterprise Software
- AI/ML
- Digital Health
- Industrial Tech

## People

- John Granahan — Founder
- Jane White — CEO, Portfolio Manager
- Gary Hatton — CFO, COO, CCO

## Questions

### Who runs investment decisions at Granahan Investment Management?

Portfolio management is led by CEO Jane White, who has been with the firm since the 1990s. The research team operates with sector analysts building proprietary models on each holding, and stock selection is committee-driven rather than centralized under a single star manager. John Granahan, the founder, remains involved in a board-level capacity but day-to-day portfolio decisions rest with White and the senior investment team.

### How does Granahan source investment ideas?

The firm uses a bottom-up, fundamentals-driven process that emphasizes direct management meetings and proprietary earnings models. Analysts cover specific technology and healthcare subsectors, building expertise over multi-decade tenures. Granahan does not rely on sell-side research as a primary input and actively avoids stocks that are widely covered or consensus-owned among growth managers.

### Which sectors does Granahan explicitly avoid?

The firm generally avoids sectors where revenue growth is tied to commodity prices, regulated utility returns, or speculative biotech without approved products. Financials, energy, materials, and most consumer discretionary segments also fall outside the team's research coverage. Granahan's circle of competence remains firmly within enterprise software, applied AI, industrial technology, and healthcare equipment and services.

### What is Granahan's known posture on client co-investment or SMAs?

The firm offers its small-cap growth strategy through commingled mutual funds, collective investment trusts, and institutional separate accounts — but it does not operate a co-investment platform or club-deal structure. Separate account terms are negotiated directly with large institutional allocators and are not publicly disclosed.

## Related profiles

- [Gramercy Ventures](https://altss.com/profile/gramercy-ventures)
- [Granatus Ventures](https://altss.com/profile/granatus-ventures)

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

Canonical page: https://altss.com/profile/granahan-investment-management

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