# SIAR Capital

SIAR Capital is a Single Family Office based in New York, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** 660 Madison Avenue, New York, NY 10021
- **Founded:** 2005
- **Assets under management:** Undisclosed
- **Website:** siarcapital.com
- **LinkedIn:** https://www.linkedin.com/company/siar-management

## Regulatory record

- **Reports private funds:** No

## About

SIAR Capital was established in 2005 by Jack S. Silver. The office oversees capital generated from Silver’s public-market activities and board service. The firm pursues value-oriented capital appreciation through public equities, private deals and commitments to alternative asset managers. It maintains a New York headquarters at 660 Madison Avenue and operates without disclosed fund vehicles or co-investor clubs. Geographic reach centers on North America with no named international offices. Jack S. Silver serves as founder and principal. Shirley M. Silver co-founded the family’s philanthropic vehicles. No dated operational events from the last 24 months appear in available records.

## Sectors

- Venture Capital
- Public Equities

## People

- Jack S. Silver — Founder and Principal

## Questions

### Who runs investment decisions at SIAR Capital?

Jack S. Silver serves as founder and principal and directs investment decisions. Former partners include Adam Hershey, who acted as CIO from 2007 to 2016.

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

The firm allocates to public equities, private deals and alternative asset managers. Specific commitment sizes or fund names are not disclosed.

### Does SIAR Capital maintain philanthropic structures, and how are they separated?

The Jack and Shirley Silver Foundation and the Jack and Shirley Silver Center for Children with Special Needs operate alongside the investment office. Shirley M. Silver co-founded the foundation.

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

The office targets undervalued and emerging growth companies. No explicit stage restrictions or minimum check sizes are published.

## Related profiles

- [Shixiang](https://altss.com/profile/shixiang)
- [Sif Capital](https://altss.com/profile/sif-capital)

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

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