Sierra
PrivateLast Round
Series E
May 4, 2026
Est. Valuation
$15.8B
Total Funding Raised
$1.59B
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Sierra (Business/Productivity Software) is a technology company that offers a conversational AI platform designed to enhance customer interactions by automating conversations and streamlining the efforts of customer experience teams.
Sector
AI, Data & Cloud Infrastructure
Verticals
NLP & Conversational AI, Customer Experience, Workflow Automation, Low-Code/No-Code
Business Model
B2B
Customer Profile
Revenue Share, Subscription SaaS, Services & Consulting, Usage-Based SaaS
AI Layer
Application
Keywords
Price History
Caplight MarketPrice™ estimate for Sierra, published with a 90-day delay.
Caplight MarketPrice™
$81.80
per share, as of May 2026
+118.8%
5-month change
Caplight MarketPrice™ is an estimate of private secondary market pricing, shown here on a delayed basis for illustrative purposes only. It may be incomplete, is subject to change, and may not be relied upon for any purpose or considered investment advice.
Sierra Comparables
Compare Sierra with similar companies based on industry and business-model similarity.
Sierra Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series E | May 4, 2026 | ||||
| Series D | Sep 4, 2025 | ||||
| Series C | Oct 28, 2024 | ||||
| Series B | Feb 13, 2024 | ||||
| Series A | May 15, 2023 |
Sierra Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Benchmark Capital | Series D, Series E, Series C, Series B |
| Greenoaks Capital Partners | Series E, Series D, Series C |
| ICONIQ Capital | Series D, Series C |
| GV | Series E |
| Founders Fund | Series D |
| Thrive Capital | Series C, Series B, Series D |
| Sequoia Capital | Series D, Series E, Series C, Series B |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 2, 2026
Grew 29% QoQ, from 788 to 1,020 employees.
- Aug 22, 2026
Monthly visitors increased 34% MoM, reaching 351.8K.
Sierra Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Curated lists and screens where this company is featured.
Frequently Asked Questions
Common questions about Sierra's valuation, stock price, and market status.
Is Sierra a public or private company?
Sierra is a private company.
What is the current stock price of Sierra?
Sierra is a private company with no public stock price. Caplight tracks Sierra's secondary market activity and provides MarketPrice™ estimates to Caplight users.
How much is Sierra worth (valuation)?
Sierra's valuation is estimated at $15.8B based on funding round data.
Can I buy Sierra stock?
Sierra shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Sierra's last funding round?
Sierra's most recent funding round was Series E on May 4, 2026.
Who are the main investors in Sierra?
Key investors in Sierra include Benchmark Capital, Greenoaks Capital Partners, GV, Sequoia Capital, Tiger Global Management.
Will Sierra IPO soon?
No public IPO plans have been announced for Sierra.
How can I track Sierra secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Sierra's secondary market activity and sign up for updates.