Silo reinvents security products by applying bleed-edge tech and contemporary design to age-old industries.
Silo reinvents security products by applying bleed-edge tech and contemporary design to age-old industries.
Business/Productivity Software📍 San Francisco, CAFounded 2017
Current Valuation
$509.5M
as of 2023-Q4
PRIVATE
QL Price
$509.5M
0% vs last round
QuantLogix's current estimate for Silo, published 2026-09-27 — in line with the last disclosed round of $509.5M (2023-Q4).
Confidence
low
Basis
round anchored
What backs this price
Last disclosed round
$509.5M
2023-Q4
weight 0.15
How this price has held up
No round has priced for Silo since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-09-27 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Silo, 2026-09-27 (d717c7e0fe0d5d2a).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is Silo going public?
No. Silo is private and has not filed to go public. There is no S-1 on file.
What is Silo's valuation in 2026?
Silo is valued at $509.5M as of 2023-Q4, set by its Series D ($35M, Nov 2023). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Silo filed an S-1?
No public S-1 is on file for Silo.
How much has Silo raised?
Silo has raised $203.97M in total, most recently a Series D of $35M in Nov 2023.
Is Silo publicly traded — can you buy Silo stock?
No. Silo is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Silo on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Founded
2017
HQ
San Francisco, CA
Employees
150
Total Raised
$203.97M
Last Round
Series D — $35M (Nov 2023)
IPO Status
private
Fundraising Status
Series D · $35M · 2y 10mo ago
privateTotal raised $203.97M
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Series D
$35M
Nov 2023
—
$509.5M
Vertical Intelligence — Defense / Aerospace
No name-verified federal prime awards for Silo in the last 36 months on USASpending.gov — revenue may be classified, flow through subcontracts, or be non-US. Absence of a registry match is reported as-is.
Checked usaspending.gov as of 2026-09-19. Re-checked weekly.
Talent Signal
No public careers page or job board could be found for Silo as of 2026-09-14. That itself is a datapoint: no open external hiring surface.
Key Executive Moves
INAmy L. GatesCEO · 2026-08-17
From trusted-source news extraction (deep-enrich pipeline); dates approximate publication, not effective date.
Checked the company site and major hosted job boards. Re-checked monthly.
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2023-Q4. Refreshed quarterly.