Quiet Capital Management, LLC
Move the world forward with quiet capital. We are builders who invest in remarkable founders from day zero.
In the firm's own words, from its website.
3 additional team members, 3 additional co-investors and affiliates, 57 additional investments, funds and LPs, 58 events, 1 verified contact (1 firm phone)
Every relationship, signal and contact on this record, with the source on each.
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
What matters now
- 8 vehicleson Form D, 18 months
$20M reported sold so far.
A Form D is filed when a vehicle takes its first money, so these are open to LPs now.
- 1 companynew in 12 months
1 new company in the last 12 months. Latest round Thatch round ($108M round) on 15 Sep 2026.
A firm writing cheques this quarter is one a founder can pitch now.
People to know
View all people- Managing PartnerWhy: Managing partner: runs the firmNo route on file yet
- Managing PartnerWhy: Managing partner: runs the firmNo route on file yet
- Managing PartnerWhy: Managing partner: runs the firmNo route on file yet
Relationship network
73 connected entities1 observed roundrounds 2026
From financing rounds and every investor named in them, Form ADV and Form D filings, the firm's funds and team, and disclosed LP commitments in the venture capital graph. A round's amount is the size of the round, not money that moved between two investors.
Some relationships on this record are counted rather than named here. They open with the full profile.
Click any name or line for the rounds and sources behind it. Line weight is rounds together; dashed lines are inferred.
- Sponsor
- Company
- Fund or vehicle
- Person
Co-investors are read from the rounds: three or more shared rounds is a strong observed relationship, two a repeat co-investor, one a single round. Funds and people are structural. Nothing is scored that a reader cannot check.
Darker lines were active in the last 24 months or are current; lighter lines are older or undated.
How am I connected?
Name your firm, a company or a person, and DFX finds the published routes to Quiet Capital Management, LLC: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.
See how you connect to Quiet Capital Management, LLC
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
Investing
1 company on record, 1 new in 12 months
| Company | Round | Role | Partner | Round size | This investor | Date | Source |
|---|---|---|---|---|---|---|---|
| Thatch | Funding round | participant | unknown | $108M | unknown | Sep 15, 2026 | Fact Press release |
- Sectors
- not stated or not yet read
- Stages
- not stated or not yet read
- Geography
- not stated
- Check size
- not stated; DFX does not estimate checks from round sizes
Team
7 current, 0 departed
- Benjamin Fereidoon Mahdavi · Managing PartnerWhy this person: Managing partner: runs the firm; Named with investment responsibility
- Lee Charles Linden · Managing PartnerWhy this person: Managing partner: runs the firm; Named with investment responsibility
- Matthew Zeller Humphrey · Managing PartnerWhy this person: Managing partner: runs the firm; Named with investment responsibility
Ranked by the role the firm or its filing states, a route on file and deals led. Every reason is read from the record, never inferred. Routes are published by the person or the firm (their bio, the team page or a filing) and are revealed on a plan; data bought from a provider is never shown, and a route printed at a firm the person has since left is held back.
- Managing Partner
- Managing Partner
- Managing Partner
2 departed (kept with end dates)
- Benjamin Fereidoon Mahdavi · Managing Member · Mar 1, 2014 to Jun 2, 2021 Inference
- Andrew Zins · Chief Compliance Officer · Mar 1, 2020 to Jul 21, 2022 Inference
1 firm phone on record, each with its source. Values open with the complete profile.
Funds and LPs
60 vehicles, 0 LPs disclosed
| Vehicle | Type | Vintage | Lifecycle | Reported GAV | Owners | Form D sold | Latest Form D |
|---|---|---|---|---|---|---|---|
| Quiet Select BC, LP | Growth fund | 2025 form d first sale | Fundraising | $22.7M Apr 29, 2026 | 4 | $20.0M | Oct 8, 2025 |
| Quiet Select Fund I, LP | Growth fund | 2024 adv first reported | Early deployment | $317M Apr 29, 2026 | 34 | $0 | Apr 5, 2023 |
| Quiet Spv R9, LP | SPV or co-invest vehicle | 2024 adv first reported | Early deployment | $50.8M Mar 29, 2024 | 26 | $0 | Sep 8, 2023 |
Relationships across DFX
6 co-investors · on 3 other DFX graphs
- 2026-09-151 shared deal · one time
- 2026-09-151 shared deal · one time
- 2026-09-151 shared deal · one time
Across DFX and the capital chainon 3 other DFX graphs ShowHide
- The same institution is held on Private Credit, Private Equity, RIA and Wealth, matched by identifier. See which records
Quiet Capital Management, LLC is the same institution as 3 records in Private Credit, Private Equity and RIA and Wealth.
DFX found 3 relationships across 3 datasets
Which record it is in each graph, what it is called there, and how the two were matched.
Includes 3 days of DFX Intelligence. Then $199/month unless canceled.
Checking your plan…
Evidence and history
63 dated events, 66 observations from 3 sources
- seen on or beforeSep 23, 2026Quiet Capital Management, LLC: PE_WITH_VENTURE_ACTIVITY -> MULTI_STAGE_VC (both early and growth/opportunity families, reported GAV $4,134M)Classification changedClassificationInferenceno URL
- Apr 29, 2026Quiet T1, LP first reported on Form ADV by Quiet Capital Management, LLC (Venture Capital Fund), GAV $110,563,166
- Apr 29, 2026Quiet Select Bc, LP first reported on Form ADV by Quiet Capital Management, LLC (Venture Capital Fund), GAV $22,737,633
- Apr 29, 2026Quiet Select Am, LP first reported on Form ADV by Quiet Capital Management, LLC (Venture Capital Fund), GAV $15,219,988
- Apr 29, 2026Quiet Access III, LP first reported on Form ADV by Quiet Capital Management, LLC (Venture Capital Fund), GAV $282,634,676
Address, phone, Form ADV filing and ownersForm ADV filed Apr 29, 2026 · 62 private fundsShowHide
- Headquarters
- San Francisco, CAadviserinfo.sec.gov
- Office address
- unknownadviserinfo.sec.gov
- Business phone
- unknownadviserinfo.sec.gov
- Website
- quiet.com
- SEC adviser type
- Registered investment adviseradviserinfo.sec.gov
- SEC exemption claimed
- unknown
- Latest Form ADV
- Apr 29, 2026
- Private funds reported
- 62 (61 venture capital funds)adviserinfo.sec.gov
- Private fund gross assets, adviser total
- $5.4Badviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
- Regulatory AUM
- $5.4Bthe adviser's RAUM, a regulatory measure, never a fund size
- Employees
- 39
- Owners on Schedule A
- Quiet Capital Management Holdings LP (Managing Member), owns 75% or more
Classification history
Every classification this record has carried3 on recordShowHide
- Sep 23, 2026Multi-stage venture firm (probable, 80%)Both early and growth/opportunity families, reported GAV $4.1B
- Sep 12, 2026Private equity with venture activity (probable, 75%)Registered adviser; venture funds are 37% of 62 private funds
- Sep 12, 2026Private equity with venture activity (probable, 75%)Registered adviser; venture funds are 37% of 60 private funds
Every observation behind this profile, with its source, date and class
| Fact | Value | Effective | Class | Source |
|---|---|---|---|---|
| Why admitted | VC funds reported | Apr 29, 2026 | Fact | Form ADV |
| SEC adviser type | Registered investment adviser | Apr 29, 2026 | Fact | Form ADV |
| SEC adviser type | Registered investment adviser | Apr 29, 2026 | Fact | Form ADV |
| SEC adviser type | Registered investment adviser | Mar 29, 2024 | Fact | Form ADV |
| First Form ADV filing | 2017-06-29 | Apr 29, 2026 | Fact | Form ADV |
| First Form ADV filing | 2017-06-29 | Mar 29, 2024 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-29 | Sep 30, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-25 | Sep 26, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-23 | Sep 24, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-21 | Sep 23, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1+panel:2026-09-22 | Sep 23, 2026 | Fact | Form ADV |
| Adv history loaded | adv-hist-1 | Sep 12, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2026-04-29 | Apr 29, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2026-04-29 | Apr 29, 2026 | Fact | Form ADV |
| Latest Form ADV filing | 2024-03-29 | Mar 29, 2024 | Fact | Form ADV |
| SEC status | Approved | Apr 29, 2026 | Fact | Form ADV |
| SEC status effective | 2020-04-29 | Apr 29, 2026 | Fact | Form ADV |
| Venture share of reported funds | 1 | Apr 29, 2026 | Fact | Form ADV |
| Venture share of reported funds | 0 | Mar 29, 2024 | Fact | Form ADV |
| Business phone | Apr 29, 2026 | Fact | Form ADV | |
| Business phone | Mar 29, 2024 | Fact | Form ADV | |
| Description | Sep 16, 2026 | Fact | no URL | |
| Description | Sep 15, 2026 | Fact | no URL | |
| Employees | 39 | Apr 29, 2026 | Fact | Form ADV |
| Employees | 30 | Mar 29, 2024 | Fact | Form ADV |
| Headquarters | San Francisco, CA | Apr 29, 2026 | Fact | Form ADV |
| Headquarters | San Francisco, CA | Mar 29, 2024 | Fact | Form ADV |
| Office address | Apr 29, 2026 | Fact | Form ADV | |
| Office address | Mar 29, 2024 | Fact | Form ADV | |
| Legal form | Limited Liability Company | Apr 29, 2026 | Fact | Form ADV |
| Portfolio page | Sep 16, 2026 | Fact | no URL | |
| Portfolio page | Sep 15, 2026 | Fact | no URL | |
| Private funds reported | 62 | Apr 29, 2026 | Fact | Form ADV |
| Private funds reported | 62 | Apr 29, 2026 | Fact | Form ADV |
| Private funds reported | 60 | Mar 29, 2024 | Fact | Form ADV |
| Private fund gross assets (reported) | $5.4B | Apr 29, 2026 | Fact | Form ADV |
| Private fund gross assets (reported) | $5.4B | Apr 29, 2026 | Fact | Form ADV |
| Private fund gross assets (reported) | $1.9B | Mar 29, 2024 | Fact | Form ADV |
| Regulatory AUM (adviser, not fund size) | $5.4B | Apr 29, 2026 | Fact | Form ADV |
| Regulatory AUM (adviser, not fund size) | $1.9B | Mar 29, 2024 | Fact | Form ADV |
| Schedule a diff | sadiff-1 | Sep 29, 2026 | Fact | Form ADV |
| Venture funds reported | 61 | Apr 29, 2026 | Fact | Form ADV |
| Venture funds reported | 61 | Apr 29, 2026 | Fact | Form ADV |
| Venture funds reported | 25 | Mar 29, 2024 | Fact | Form ADV |
| Website | Apr 29, 2026 | Fact | Form ADV | |
| Website | Mar 29, 2024 | Fact | Form ADV | |
| Site title | Sep 16, 2026 | Fact | no URL | |
| Site title | Sep 15, 2026 | Fact | no URL |
How this is scored
Scores, classification basis and filing advisersMulti-stage venture firm, probable · 2 filing advisers share this firmShowHide
Both early and growth/opportunity families, reported GAV $4.1B
This firm files as 2 advisers on quiet.com: Quiet Capital Management LP. Each keeps its own CRD, funds and filings; the grouping is the website each swore to on Form ADV and is recomputed every pass.
- importance
- gav: $1 · funds: 1 · people: 0.12 · investments: 0 · co investors: 0.31
- active deployment
- investments 12m: 0.13 · fund raising 18m: 0 · people joined 12m: 0 · vintage within 3y: 1 · latest investment at: 2026-09-15
- emerging manager
- fund count: 60 · reported gav: $4.0B · first adv filing: 2017-06-29 · years since first filing: 9.3
Fits, record history and connections
scored matches for this investor, every identity change, every edge
Record history
- Organization classification changed2026-09-23
- Adviser's first ADV filing2017-06-29source on record
The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.