# Quiet Capital

> Quiet Capital is a San Francisco investment firm that backs technology founders from the earliest days and also gives investors exposure to later-stage private companies. Founded in 2017 by operators and investors including Lee Linden and Ben Mahdavi, the firm has built a wide portfolio spanning AI, enterprise software, fintech, healthcare, consumer, crypto, marketplaces and deep technology. Its edge is less a narrow sector thesis than a barbell: small, conviction-led early checks, follow-on support and access to scarce private-company shares, delivered by a team that presents itself as builders working beside founders.

- **Founded:** 2017
- **Headquarters:** San Francisco, United States
- **Founders:** Lee Linden (Co-Founder and Managing Partner), Ben Mahdavi (Co-Founder and former Managing Partner)
- **Team size:** 11-50 employees; LinkedIn displayed 43 employees in 2026
- **Products:** Early-stage venture investing, Follow-on capital, Access strategy, Founder and portfolio support, Portfolio insights
- **Notable:** Built an official portfolio spanning AI, consumer, crypto, deeptech, enterprise, fintech, healthcare and marketplaces., Backed publicly listed companies including Reddit and portfolio companies acquired by larger technology businesses., Quiet's official portfolio highlights private technology companies including OpenAI, SpaceX, Databricks, ElevenLabs, Mercury and Anduril.

## Products & services

- **Early-stage venture investing** — Pre-seed through Series A investments in technology founders, with public examples across AI, enterprise, fintech, healthcare, consumer, crypto, marketplaces and deeptech.
- **Follow-on capital** — Continued investment in portfolio companies when conviction and company progress warrant a larger position.
- **Access strategy** — Concentrated exposure to prominent later-stage private technology companies through primary investments, secondaries, tenders and other private-market transactions.
- **Founder and portfolio support** — Recruiting, network, operating and company-building support, reinforced by a portfolio job board and a team with founder and operator backgrounds.
- **Portfolio insights** — Founder-authored and partner-authored essays that explain technical bottlenecks and emerging categories from AI chips to healthcare operations.

## Achievements

- Built an official portfolio spanning AI, consumer, crypto, deeptech, enterprise, fintech, healthcare and marketplaces.
- Backed publicly listed companies including Reddit and portfolio companies acquired by larger technology businesses.
- Quiet's official portfolio highlights private technology companies including OpenAI, SpaceX, Databricks, ElevenLabs, Mercury and Anduril.
- Quiet Venture III reported $377,992,500 in securities sold in an amended Form D filed in November 2024.
- A recent Form ADV-based directory reported approximately $5.39 billion in regulatory assets under management across 62 clients.
- Expanded its public research program with operator-led essays on AI infrastructure, healthcare, legal services, wildfire response and private markets.

## Latest updates

- **2026-08** — Jonathan Shriftman announced that he joined Quiet Capital to help lead its Access Fund, a concentrated late-stage private-technology strategy.
- **2026-06** — Quiet participated in Assort Health's $120 million Series C, which valued the healthcare AI company at $1.2 billion.
- **2026-06** — Third-party investment trackers recorded Quiet joining Suno's Series D and NewLimit's Series C.
- **2026-05** — Manifest OS emerged from stealth with a $60 million Series A; Quiet said it had backed the company from pre-seed and co-led the new round.
- **2026-02** — Partner Alex Kvamme published Quiet's Taalas thesis and detailed the firm's repeated investment in the AI-chip company.

## Links

- Website: https://quiet.com
- LinkedIn: https://www.linkedin.com/company/quiet-capital
- Twitter/X: https://x.com/QuietCapital

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Profile page: https://yespress.io/quiet-capital
Published by YesPress — https://yespress.io
Last updated: 2026-08-16