Key facts
- Sierra’s last known valuation is $10.0B (Sep 2025).
- It has raised $635.0M across 1 recorded rounds; the latest was Later Stage VC (Series C) ($175.0M) in Nov 2024.
- Notable investors include Sequoia Capital, SV Angel, SoftBank Investment Advisers, Thrive Capital, Greenoaks Capital Partners — 12 tracked in total.
- Status: Privately Held (backing).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 12 names
- ·Watchlist + deal alerts for Sierra
Funding rounds
1 roundsAbout Sierra
Developer of a conversational artificial intelligence platform intended to empower enterprises with AI agents. The company's platform uses advanced technology to handle customer conversations every month thus saving customer experience teams time and effort, enabling companies to elevate their customer experience with artificial intelligence.
- Industry
- Business/Productivity Software
- Sector
- Information Technology
- HQ
- San Francisco, CA, United States
- Founded
- 2023
- Employees
- 488
- Website
- sierra.ai/
- Ownership
- Privately Held (backing)
Sierra doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Sierra shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Sierra in its N-PORT filings yet. We sweep new filings monthly.