# Casimir Holdings

Casimir Holdings is a Single Family Office based in Miami, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Miami, United States
- **Region:** North America
- **Address:** 2850 Tigertail Avenue, Suite 525, Miami, Florida 33133, United States
- **Founded:** 2020
- **Assets under management:** Undisclosed
- **Website:** casimirholdings.com
- **LinkedIn:** https://www.linkedin.com/company/casimir-holdings

## Regulatory record

- **Reports private funds:** No

## About

Casimir Holdings was established in 2020 by Jim Goetz and Geoff Swerdlin. Goetz brought capital accumulated through Sequoia Capital's early positions in companies including Apple, Google and Nvidia. The structure permits long holding periods and flexible vehicles that differ from typical limited-life funds. The firm deploys across public equity, private equity, real estate, hedge funds, private credit and insurance-linked securities. It has participated in co-investments such as the Ariel managed syndicate 1910 at Lloyd's alongside New Capital Partners and Diameter Capital for the 2023/2024 years of account. Additional positions include Hakkoda, a data and AI consultancy, with Tercera and Lead Edge Capital. Geographic reach covers North America, Europe, Asia, Africa, the Caribbean and South America. Investment stages span seed through growth. Geoff Swerdlin serves as Managing Partner and CIO and oversees listed and unlisted allocations. Vadim Reingevurts acts as Partner and CFO. The team includes six additional professionals listed on the firm website. Casimir occupies office space at 2850 Tigertail Avenue in Miami alongside D1 Capital and Cerberus. No recent operational events from the last 24 months appear in available records. Casimir maintains separation between its investment activities and philanthropic vehicles including Mae Philanthropies and Freedom Reigns Foundation. Jim Goetz serves as Founder and Chairman of Mae Philanthropies. The arrangement allows capital allocation decisions to remain independent of grant-making priorities while sharing operational infrastructure.

## Sectors

- Enterprise Software
- AI/ML
- InsurTech
- Digital Health
- FinTech

## People

- Geoff Swerdlin — Managing Partner and Chief Investment Officer
- Jim Goetz — Partner
- Vadim Reingevurts — Partner and Chief Financial Officer
- Barb Izzo — Partner and General Counsel

## Questions

### Who runs investment decisions at Casimir Holdings?

Geoff Swerdlin serves as Managing Partner and Chief Investment Officer. He oversees allocations across public equity, private equity, limited partnerships and real estate. Vadim Reingevurts supports as Partner and CFO.

### How does Casimir Holdings source proprietary deal flow?

The firm draws on relationships formed through Jim Goetz's tenure at Sequoia Capital and Geoff Swerdlin's prior hedge fund and advisory work. It also co-invests with named partners including Tercera, Lead Edge Capital and New Capital Partners.

### Is Casimir Holdings structured as a single family office or does it operate more like a venture firm?

Casimir Holdings operates as a single family office. It invests its own capital without external fund commitments or management fees typical of venture firms.

### Does Casimir Holdings participate in fund commitments or only direct deals?

The firm uses both approaches. It has made fund commitments and participated in direct co-investments and SPVs, including the Ariel managed syndicate at Lloyd's.

### What investment stages does Casimir Holdings typically target?

Casimir targets seed, early stage and growth investments. Confirmed positions include early and growth rounds in data and AI companies.

### Does Casimir Holdings maintain philanthropic structures, and how are they separated?

Casimir directs giving through Mae Philanthropies and Freedom Reigns Foundation. Investment decisions remain separate from grant-making activities.

## Related profiles

- [Cashel Family Office](https://altss.com/profile/cashel-family-office-pty-ltd)
- [Caspa](https://altss.com/profile/caspa)

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

Canonical page: https://altss.com/profile/casimir-holdings

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