Quiet Capital
UnclaimedAt a Glance
- Check Size
- $100K – $25M
- Stage
- Pre-Seed, Seed, Series A
- AUM
- $400M+
- Sectors
- AI, Fintech, Deeptech
- Founded
- 2017
- HQ
- San Francisco, CA
About Quiet Capital
Quiet Capital is a venture firm that invests from pre-seed through Series D, pitching operating experience rather than research as its edge. Its stated purpose is to move the world forward with quiet capital, and it describes its team as builders who invest in remarkable founders from day zero. The mandate centres on AI, fintech and deeptech at pre-seed, seed and Series A, with follow-on capacity through later rounds, and the portfolio is organised across AI, consumer, crypto, deeptech, enterprise, fintech, healthcare and marketplace.
The firm is larger than its low profile suggests. SEC filings show Quiet Venture II opening in April 2021 and selling $478.7 million after raising its own target twice mid-raise, and Quiet Venture III reporting $378.0 million by late 2024; Quiet Venture IV was filed in February 2026. Around those flagships Quiet has built a full product shelf uncommon for a firm of its vintage: Quiet Growth and Quiet Expansion vehicles for later rounds, Quiet Crypto, Quiet Select and a steady stream of single-company SPVs, which lets it hold positions through a company's whole private life rather than exiting at Series B.
Lee Linden, Matt Humphrey and Benjamin Mahdavi sign the flagship filings. The management company was formerly named Tacit Capital, and the firm's earliest vehicles date to 2017. What distinguishes Quiet is the deliberate absence of the usual apparatus: no partner blog, no thought-leadership cadence, and an essay series written by portfolio management teams instead of by its investors, under the tagline signal above noise.
Investment Thesis
“Backs AI, fintech, and deeptech startups from pre-seed through Series D with founder operating expertise.”
Sector Focus
Investment Stage
Fund History
Quiet Capital Management, which the SEC adviser registry shows was formerly named Tacit Capital, LLC, appears in Form D filings from November 2017, when Quiet Venture I SPV A sold $495,000. Quiet Growth II sold its full $36.7 million from a February 2020 first sale. The step change came with Quiet Venture II, which opened in April 2021 and sold $478.7 million against a $500 million target by December that year, having already raised its offering from $400 million mid-flight.
Quiet Venture III began selling in November 2022 on an indefinite-offering basis and reported $378.0 million by November 2024. Quiet Venture IV was filed in February 2026. Around the flagships the firm has filed Quiet Expansion II in 2021, Quiet Crypto and Quiet Select Fund I in 2022 and 2023, and a long series of single-name SPVs including Gusto. Earlier Quiet Growth I series vehicles were filed from Houston; recent filings list San Francisco.
SEC Fund Filings
- Vehicles filed, last 24 months
- 14
- Latest filing
Quiet Capital filed a Form D for 14 fund vehicles between Sep 26, 2024 and Sep 25, 2026. The 8 most recent:
| Fund vehicle | Source |
|---|---|
| Quiet Select TX LP | SEC Form D, filed |
| Quiet Select HL LP | SEC Form D, filed |
| Quiet Venture IV LP | SEC Form D, filed |
| Quiet Leaders Fund I LP | SEC Form D, filed |
| Quiet T2 LP | SEC Form D, filed |
| Quiet Select BC, LP | SEC Form D, filed |
| Quiet Select AM, LP | SEC Form D, filed |
| Quiet SH LP | SEC Form D, filed |
A Form D is the notice a fund files with the SEC when it raises money in a private offering. Feeder funds, parallel funds and SPVs each file their own, so the count measures filing activity, not the number of flagship funds.
Source: SEC EDGAR Form D filings for pooled investment funds, original filings only (amendments excluded). Our filing data starts Jul 1, 2024. Vehicles are matched to Quiet Capital by fund name and checked against the sponsor address and named principals on each filing; offering amounts are not shown. Each “SEC Form D” link opens an EDGAR full-text search for that vehicle’s exact name, where the filing itself is listed. See every new fund filing on the Form D Radar.
Team (2)
Related Articles (6)
Frequently Asked Questions
What stage does Quiet Capital invest at?
Quiet Capital primarily invests at the Pre-Seed, Seed, Series A stages. This means they focus on companies that are at the earliest idea or prototype phase.
Where is Quiet Capital located?
Quiet Capital is headquartered in San Francisco, CA. Many of their portfolio companies are also based in this region, though they invest across geographies.
What sectors does Quiet Capital focus on?
Quiet Capital focuses on investments in AI, Fintech, Deeptech. Their portfolio reflects deep expertise and networks within these sectors.
What is Quiet Capital's typical check size?
Quiet Capital's typical investment check size ranges from $100K to $25M. Actual amounts may vary based on the stage, sector, and specific opportunity.
How much does Quiet Capital have under management?
Quiet Capital manages approximately $400M+ in assets under management (AUM) across their funds.
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