# Aerion Capital

Aerion Capital is a Single Family Office based in Wilmette, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Wilmette, United States
- **Region:** North America
- **Address:** 419 Washington Avenue, Wilmette, IL, 60091, United States
- **Founded:** 2022
- **Assets under management:** Undisclosed
- **Website:** aerioncapital.com
- **LinkedIn:** https://www.linkedin.com/in/stephenmarkscheid/

## Regulatory record

- **Reports private funds:** No

## About

Aerion Capital began operations in 2022 under Stephen Markscheid. His prior positions include vice president and country manager for China at GE Capital plus senior advisor roles at TPG, KKR, Blackstone, CVC Capital Partners and FTI Consulting. The firm allocates across early, growth and late stages. It deploys through direct co-investments, SPVs, fund-of-funds commitments, private equity, real estate, natural resources and intellectual-property royalties. Focus areas include clean-energy transition, data analytics, fintech and healthcare services. Activity spans North America, Asia, Europe, Africa, South America and the Middle East. No public figures exist for assets under management or headcount. The office lists a single location in Wilmette, Illinois. Markscheid maintains memberships on the boards of the US-China Business Council and the National Bureau of Asian Research, and he serves on advisory councils at Tsinghua University and Georgia Institute of Technology. The structure centers on one principal who sources opportunities through long-standing relationships with global alternative-asset managers and Asia-focused networks rather than through an external investment committee or multi-partner platform.

## Sectors

- ClimateTech
- Energy Transition & Renewables
- FinTech
- Healthcare Services
- Media & Entertainment
- InsurTech
- Robotics & Automation
- Mobility & Transportation
- Data Analytics

## People

- Stephen Markscheid — Principal Owner and Managing Partner

## Questions

### Who runs investment decisions at Aerion Capital?

Stephen Markscheid serves as principal owner and managing partner. He approves commitments and frequently joins boards of portfolio companies.

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

The firm relies on entrepreneur networks, angel investing clubs and sponsors developed during Markscheid’s prior advisory work with TPG, KKR and Blackstone.

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

It uses both fund-of-funds commitments and direct co-investments or SPVs, according to the firm’s stated approach.

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

Early stage, growth stage and late stage opportunities receive capital.

### Does Aerion Capital maintain philanthropic structures?

Markscheid supports International Crisis Group, Princeton-in-Asia, the Soong Ching Ling Foundation, the United Board for Christian Higher Education in Asia and World Wildlife Fund Hong Kong.

### What is Aerion Capital’s known posture on co-investments alongside external GPs?

The firm executes direct co-investments and SPVs and accepts board or advisory roles in investee companies.

## Related profiles

- [AEQUITA](https://altss.com/profile/aequita)
- [Aeterna Capital Partners](https://altss.com/profile/aeterna-capital-partners)

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

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