# Sivia Capital

Sivia Capital is a Multi Family Office based in Mill Valley, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Mill Valley, United States
- **Region:** North America
- **Address:** Mill Valley, CA, United States
- **Founded:** 2014
- **Assets under management:** 641 (Altss estimate)
- **Website:** siviacapital.com
- **LinkedIn:** https://www.linkedin.com/company/sivia-capital

## Regulatory record

- **CRD number:** 170413
- **SEC file number:** 801-79173
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-03-30T05:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/170413

## About

Sivia Capital was established in 2014 by Benjamin Mahdavi. His background in professional sports, investment banking and venture capital supplies the initial capital base and shapes the firm’s advisory relationships with other entrepreneurs. The firm allocates across venture capital, private equity, real estate and public markets. It uses direct co-investments, SPVs and fund-of-funds vehicles. Confirmed positions include participation in Tacit Capital Fund, LP – Series 1 alongside co-investor Tencent Cloud. Geographic reach remains concentrated in North America. Earlier affiliation with Quiet Capital informs ongoing venture sourcing. The team includes Christian Mejia as financial advisor. The firm maintains two named vehicles: Tacit Capital Fund, LP – Series 1 in San Francisco and The Pro’s Fund in Mill Valley. Memberships include the Milken Institute and Worth Media networks. No public disclosure of headcount or additional offices exists. Governance centers on Mahdavi as managing member. The structure integrates tax, estate and reporting services directly with investment allocation rather than outsourcing these functions to separate providers.

## Sectors

- PropTech
- Cannabis & Psychedelics
- Semiconductors

## People

- Benjamin Mahdavi — Founder and Managing Member

## Questions

### Who runs investment decisions at Sivia Capital?

Benjamin Mahdavi serves as founder and managing member. He previously worked as a partner at Quiet Capital.

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

Sourcing draws on Mahdavi’s prior relationships in venture capital and professional sports networks. The firm also participates in co-investments such as those involving Tencent Cloud.

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

The firm uses both fund commitments and direct co-investments through SPVs.

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

Activity centers on venture capital stages with additional allocations to private equity and real estate.

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

The firm has executed co-investments, including alongside Tencent Cloud in Tacit Capital Fund, LP – Series 1.

## Related profiles

- [WLD Enterprises](https://altss.com/profile/wld-enterprises-inc)
- [Guardian Multi Family Office](https://altss.com/profile/guardian-multi-family-office)

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

Canonical page: https://altss.com/profile/sivia-capital

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