Multi-Family Office

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August Spark

August Spark was established in 2017 by Michael Cassidy following the exit of his advertising-technology company Undertone. Cassidy partners with Stephen Wall...

August Spark logo

August Spark

August Spark was established in 2017 by Michael Cassidy following the exit of his advertising-technology company Undertone. Cassidy partners with Stephen Wall to manage capital for multiple families through control-oriented acquisitions. The firm concentrates on majority stakes in marketing, e-commerce and technology-enabled services companies. It pursues early-stage, late-stage and seed opportunities structured as alternative venture models. Confirmed geographic reach spans Asia, Europe, North America and Oceania. Technology emphases include AI/ML and Edge & IoT. No public AUM figure or recent operational events from the last 24 months appear in available records. The firm lists PropTech among its sector focuses.

General information

Firm type

Multi Family Office

Year founded

2017

AUM

Undisclosed

Location

Region

North America

Country

United States

City

New Rochelle

Corporate office

New Rochelle, New York, United States

Principals

Michael Cassidy

Co-founder

Stephen Wall

Partner

Sector focus

PropTech

Frequently asked questions

Who runs investment decisions at August Spark?

Michael Cassidy and Stephen Wall lead decisions. Cassidy supplies the founding capital from his Undertone exit; Wall partners on acquisitions and scaling.

Does August Spark participate in fund commitments or only direct deals?

The firm targets direct control investments and majority stakes. No fund commitments or external GP allocations are disclosed in source material.

What investment stages does August Spark typically target?

Early Stage, Late Stage and Seed are the confirmed stages. Investments focus on companies with clear paths to operational scaling.

Where does the underlying wealth come from?

Primary capital originates from Michael Cassidy’s $180 million sale of Undertone, an advertising-technology company.

Which sectors does August Spark focus on?

PropTech is the sole confirmed sector tag. Additional activity centers on marketing, e-commerce and technology-enabled services.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

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