# Thunderbird

Thunderbird is a Multi Family Office based in Oak Brook, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Oak Brook, United States
- **Region:** North America
- **Address:** 900 Commerce Drive, Suite 150, Oak Brook, IL 60523, United States
- **Founded:** 1999
- **Assets under management:** Undisclosed
- **Website:** thunderbirdllc.com
- **LinkedIn:** https://www.linkedin.com/company/thunderbird-llc

## About

Kevin Prunsky established Thunderbird in 1999. The firm traces its capital to the 2008 exit of Pollution Control Industries, which Prunsky founded and later sold. Thunderbird operates as a multi-family office that reinvests proceeds into industrial companies it controls outright. The firm targets buyouts and growth investments in manufacturing. It deploys capital directly into portfolio companies rather than through external funds. Asset classes include private equity, natural resources and private credit. Geographic reach covers North America with additional exposure noted across Europe, Asia and Africa. No specific co-investors or named external deals appear in public materials. Thunderbird lists four manufacturing sites under its control. The headquarters sits in Oak Brook, Illinois. No headcount or AUM figure has been disclosed. Kevin and Blake Prunsky hold the chairman and chief executive roles; Phil Kretekos serves as president. Thunderbird functions as both capital allocator and operating parent. The structure keeps ownership, governance and day-to-day management inside a single entity rather than separating investment decisions from operational oversight.

## Sectors

- Circular Economy
- Healthcare Services
- Industrial Tech
- Mobility & Transportation
- SpaceTech
- Energy Transition & Renewables
- Digital Health
- FinTech
- Robotics & Automation
- Supply Chain & Logistics

## People

- Kevin Prunsky — Founder and Chairman of the Board

## Questions

### Who runs investment decisions at Thunderbird?

Kevin Prunsky serves as Founder and Chairman. Blake Prunsky holds the Chief Executive Officer title. Phil Kretekos acts as President and oversees operations and M&A.

### How does Thunderbird source proprietary deal flow?

The firm identifies targets through direct outreach and industry relationships. It focuses on lower-middle-market manufacturing businesses that can benefit from its Active Management Process.

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

Thunderbird is a multi-family office. It acquires controlling stakes in operating companies and manages them internally rather than writing venture-style checks.

### Does Thunderbird participate in fund commitments or only direct deals?

Public materials describe only direct acquisitions and active ownership of portfolio companies. No external fund commitments are referenced.

## Related profiles

- [Threshold Group](https://altss.com/profile/threshold-group)
- [Tigmera LLC](https://altss.com/profile/tigmera-llc-straus-family-office)

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

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