# Harbor Ithaka

Harbor Ithaka is a Multi Family Office based in Aventura, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Aventura, United States
- **Region:** North America
- **Address:** Miami, FL, United States
- **Founded:** 2006
- **Assets under management:** 160 (Altss estimate)
- **Website:** harbor-ithaka.com
- **LinkedIn:** https://www.linkedin.com/company/harbor-ithaka/

## Regulatory record

- **CRD number:** 170580
- **SEC file number:** 801-113143
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/170580

## About

Harbor Ithaka began in 2006 when Carlos J. Arredondo established the firm to deliver macro research and risk consulting to Latin American ultra-high-net-worth families. It later expanded into a full multi-family office platform that combines portfolio construction, alternative access, and ongoing monitoring. The firm allocates across real estate, private credit, infrastructure, hedge funds, secondaries, and digital assets. It deploys capital through fund-of-funds structures and segregated portfolio vehicles, including the Harbor Ithaka Tactical Select Allocation Real Estate SP and the Harbor Ithaka Life Settlements Multi Strategy Fund SP. Activity spans North America and South America. No individual external portfolio companies are disclosed in available records. The team includes Rafael Alcantara-Lansberg as CIO and Javier Miñana Alonso as business partner. Operations are housed under parent Harbor Financial Holdings LLC. No dated operational events from the last 24 months appear in public sources.

## Sectors

- Media & Entertainment
- Real Estate
- Private Credit
- Infrastructure

## People

- Carlos J. Arredondo — Founder / Managing Partner
- Rafael Alcantara-Lansberg — CIO / Managing Director
- Javier Miñana Alonso — Business Partner

## Questions

### Who runs investment decisions at Harbor Ithaka?

Rafael Alcantara-Lansberg serves as CIO and heads global macro research and portfolio construction. Carlos J. Arredondo founded the firm and continues as Managing Partner.

### How does Harbor Ithaka source proprietary deal flow?

The firm draws on two decades of macro research relationships with Latin American families. It also maintains direct access through its Miami base and segregated portfolio structures.

### Does Harbor Ithaka participate in fund commitments or only direct deals?

It uses fund-of-funds structures for simplified participation in private markets. It also maintains its own segregated portfolio vehicles in real estate and life settlements.

## Related profiles

- [Habico Invest](https://altss.com/profile/habico-invest)
- [Tika Holding](https://altss.com/profile/tika-holding)

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

Canonical page: https://altss.com/profile/harbor-ithaka

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology