Real-time voice AI infrastructure powered by state space models
AI📍 San Francisco, CAFounded 2024
Current Valuation
Private
as of 2025-Q4
PRIVATE
IPO Outlookprivate
Is Cartesia going public?
No. Cartesia is private and has not filed to go public. There is no S-1 on file.
What is Cartesia's valuation in 2026?
No confirmed valuation is on record for Cartesia. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Cartesia filed an S-1?
No public S-1 is on file for Cartesia.
Who are Cartesia's investors?
Cartesia's investors include Kleiner Perkins, Lightspeed, Index Ventures, A* Capital, Conviction.
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.
Cartesia builds real-time voice AI infrastructure for conversational agents, anchored on state space model (SSM) research from co-founder Albert Gu (the author of Mamba) and Karan Goel. The company's Sonic-3 model targets sub-100ms latency at production scale, putting it head-to-head with ElevenLabs in the booming voice-agent market. Cartesia raised $100M in late 2025 led by Kleiner Perkins to expand into enterprise voice agents and ship lower-latency turn-taking.
Company Profile
CEO
Karan Goel
Founded
2024
HQ
San Francisco, CA
Employees
~50
Total Raised
$191M
Growth
Series B growth-stage
Last Round
Series B — $100M (Nov 2025) · Lead: Kleiner Perkins
IPO Status
private
Fundraising Status
Series B · $100M · 9 mo ago
privateTotal raised $191M
Secondary Market
Implied price / share
$18.67
Last round price / share
$18.67
vs last round
0.0%
Open interest
1
Last round price vs secondary price
Secondary price return by period
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Series B
$100M
Nov 2025
Kleiner Perkins
—
Vertical Intelligence — Defense / Aerospace
No name-verified federal prime awards for Cartesia 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 2026-08-19. Re-checked weekly.
Talent Signal
Hiring trend
● First snapshot
trend accrues with monthly sweeps
Open roles
34
via ashby
Product-build share
62%
engineering, research, product, design
Trajectory
steady
product-led hiring — 62% of open roles build product; the rest are go-to-market and G&A.
Counted from Cartesia's live job board as of 2026-08-17; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Karan GoelAlbert Gu
Investors
Kleiner Perkins · Lightspeed · Index Ventures · A* Capital · Conviction
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025-Q4. Refreshed quarterly.