# WMAS Management

WMAS Management is a Single Family Office based in Kilauea, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Kilauea, United States
- **Region:** North America
- **Address:** Kilauea, HI, United States
- **Founded:** 2000
- **Assets under management:** Undisclosed
- **Website:** wmasgroup.com
- **LinkedIn:** https://linkedin.com/company/wmas-management-group

## Regulatory record

- **Reports private funds:** No

## About

Walter Kortschak founded the firm in 2000 after building liquidity through Summit Partners. The office manages the family's private holdings with input from Marcia Kortschak on philanthropic matters and from children Andrew and Sarah Kortschak on operating interests. The firm allocates across venture capital, private equity, real estate, and direct co-investments. Confirmed positions include film production assets in Culver City and land holdings such as Kauai Ranch. It participates in seed through growth stages and maintains exposure in North America and Europe. Fund-of-funds commitments supplement the direct book. The team remains small and centered on the family. Additional residences are held in Aspen and London. Walter Kortschak serves on the Caltech Board of Trustees. The Kortschak Family Foundation operates separately from the investment office. The structure ties investment decisions to the original venture capital relationships of the founder rather than to an external CIO mandate or multi-client platform.

## Sectors

- FinTech
- Media & Entertainment
- AgriTech & FoodTech
- Real Estate
- Digital Health
- Energy Transition & Renewables

## People

- Walter Kortschak — Founder
- Marcia Kortschak — Family Member
- Andrew Kortschak — Family Member
- Sarah Kortschak — Family Member
- Michael Taylor — Business Partner

## Questions

### Who runs investment decisions at WMAS Management?

Walter Kortschak directs the investment posture. Family members Marcia, Andrew, and Sarah Kortschak participate in oversight alongside business partner Michael Taylor.

### How does WMAS Management source proprietary deal flow?

The office draws on Walter Kortschak's prior Summit Partners network and ongoing board relationships including the Caltech Board of Trustees.

### Does WMAS Management participate in fund commitments or only direct deals?

The firm uses both direct co-investments and fund-of-funds commitments. It also holds real estate and operating assets outright.

### What investment stages does WMAS Management typically target?

The office covers seed, Series A, growth equity, and buyout transactions.

### Does WMAS Management maintain philanthropic structures, and how are they separated?

The Kortschak Family Foundation exists as a distinct vehicle. Investment and grant-making decisions are kept separate.

### What is WMAS Management's known posture on co-investments alongside external GPs?

The firm executes direct co-investments and SPVs in addition to fund commitments.

## Related profiles

- [WJFS](https://altss.com/profile/wjfs)
- [WM Holding](https://altss.com/profile/wm-holding)

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Last updated: 2026-08-10T15:54:10.904Z

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