# Fairhaven Capital

Fairhaven Capital is a Private Equity based in Boston, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Boston, United States
- **Region:** North America
- **Address:** Boston, MA, United States
- **Founded:** 2007
- **Assets under management:** Undisclosed
- **Website:** www.fairhavencapital.com
- **LinkedIn:** https://www.linkedin.com/company/fairhaven-capital

## Regulatory record

- **CRD number:** 161172
- **SEC file number:** 802-75493
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/161172

## About

Fairhaven Capital is an exempt reporting adviser. It provides investment advice to clients.

## Sectors

- Enterprise Software
- Cybersecurity
- AI/ML
- Industrial Tech
- Mobility & Transportation

## People

- Paul Ciriello — Founder and Managing Director
- Rick Grinnell — Founder and Managing Director

## Questions

### Who runs investment decisions at Fairhaven Capital?

Founders Paul Ciriello and Rick Grinnell serve as managing directors and share the investment committee together. They have worked alongside each other since co-founding TD Capital Ventures in 2000, then raised Fairhaven's debut fund in 2007. The firm's small partnership structure means every term sheet requires agreement from both principals, with no junior investment professionals known to have check-writing authority.

### How does Fairhaven source its deal flow?

The partnership relies on a network built over two decades of early-stage enterprise investing, anchored in Boston and extending to Silicon Valley. Because both founders operated initially inside a bank's venture arm, their sourcing channels include trusted relationships with technology founders, repeat entrepreneurs from prior portfolio companies, and co-investors who have worked alongside them since the TD Capital Ventures era.

### Which sectors does Fairhaven explicitly avoid?

Fairhaven's disclosed portfolio is enterprise-focused, and the firm has no public track record in consumer internet, biotechnology, or medical devices. Based on the partners' investment history, the firm has avoided capital-intensive sectors such as cleantech hardware and therapeutics, remaining concentrated on business-to-business software and technology infrastructure where the underwriting maps to their operational expertise.

## Related profiles

- [Fair Equity](https://altss.com/profile/fair-equity)
- [Fairmont Capital](https://altss.com/profile/fairmont-capital)

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Last updated: 2026-08-14T12:30:00.000Z

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