# 9th Street Capital

9th Street Capital is a Private Equity based in Golden, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Golden, United States
- **Region:** North America
- **Address:** Golden, CO, United States
- **Founded:** 2012
- **Assets under management:** Undisclosed
- **Website:** www.acdevelopment.com

## Regulatory record

- **Reports private funds:** No

## About

9th Street Capital was founded in 2012 in Golden, Colorado. It emerged directly from Coorstek, an advanced ceramics manufacturer. The firm pursues expansion, late-stage, growth, and venture investments. It concentrates on North American companies in advanced materials. Confirmed strategy elements include both direct equity and venture commitments. No recent operational events from the last 24 months are recorded. The firm maintains a single-office footprint in Golden, Colorado. Its structure ties investment activity to the operational history of Coorstek, creating a sector-specific mandate rather than a diversified family-office or multi-strategy platform.

## Sectors

- Advanced Materials

## Questions

### Who runs investment decisions at 9th Street Capital?

No named principals or investment committee members are publicly identified in available records.

### What investment stages does 9th Street Capital typically target?

The firm targets expansion, late-stage, growth, and general venture stages.

## Related profiles

- [9 Square Ventures](https://altss.com/profile/9-square-ventures)
- [9Yards Capital](https://altss.com/profile/9yards-capital)

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

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