# Atheneum Capital

Atheneum Capital is a Single Family Office based in Norwalk, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Norwalk, United States
- **Region:** North America
- **Address:** Norwalk, CT, United States
- **Founded:** 2005
- **Assets under management:** Undisclosed
- **Website:** atheneumcapital.com
- **LinkedIn:** https://www.linkedin.com/in/richardsrankin/

## Regulatory record

- **Reports private funds:** No

## About

Atheneum Capital was established in 2005 by Richard Rankin. The firm manages the private wealth from his career in investment banking at Morgan Stanley and UBS. It operates as a single-family office based in Norwalk, Connecticut. The office makes principal investments in early- and growth-stage public and private businesses. Sectors include life sciences, green energy, and technology. It has co-invested with DW Healthcare Partners in Spectrum Solutions. Investments span North America. Structures include direct co-investments and private equity. No team size is disclosed. Richard Rankin also holds roles at Mark J. Muller Equities and Dock Street Asset Management. The firm maintains properties in Norwalk and Florida. It participates in networks such as the New York Yacht Club and Palm Beach Hedge Fund Association.

## Sectors

- Healthcare Services
- ClimateTech
- Energy Transition & Renewables

## People

- Richard Rankin — Founder and General Manager

## Questions

### Who runs investment decisions at Atheneum Capital?

Richard Rankin serves as Founder and General Manager. He previously worked at Morgan Stanley and UBS.

### How does Atheneum Capital source proprietary deal flow?

Richard Rankin maintains memberships in the New York Yacht Club, Family Office Association, and Palm Beach Hedge Fund Association.

### Does Atheneum Capital participate in fund commitments or only direct deals?

The firm uses direct co-investments, SPVs, private equity and private credit structures.

### What investment stages does Atheneum Capital typically target?

Early Stage and Growth investments form the core focus.

## Related profiles

- [ATFX](https://altss.com/profile/atfx)
- [Athman Holdings](https://altss.com/profile/athman-holdings)

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

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