S
Sierra
Conversational AI platform for businesses
At a glance
- Founded
- 2023
- Headquarters
- San Francisco, United States
- Sector
- AI
- Power Law
- Decacorn$10B+ valuation tierThoroughbred$100M+ revenue
Latest news
Press, funding announcements and product moves mentioning Sierra.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A6 investors entered at this stage
Greenoaks Capital Partners
Thrive Capital- COConviction
- IGIONIQ Group
Sequoia
Benchmark
Series B and later4 investors entered at this stage
Ownership
Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (May/2026). Percentages are indicative.
Some investors are hidden on this public profile. See the full cap table on Dealroom →
Source: Dealroom Talent Intelligence.
Global footprint
team presence
across markets
Patents
2 active patent families included in this estimate.
A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.
Investments and acquisitions
Disclosed deals where Sierra was the backer or acquirer, 2026–2026. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.
2 deals across Sierra's capital deployment.
Where the deals concentrate by sector, stage, and decade.
Sierra's portfolio, mapped.
Each chip is one company. Pill colour shows round type — green for Seed, blue for Series A, purple for B/C+, pink for late-stage, amber for M&A. Bigger sectors keep their full list behind “+ N more”.
Market sentiment
An AI-synthesised read of the highest-engagement posts about Sierra on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Sierra on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.