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Sierra

Sierra develops a conversational AI platform, Agent OS, for enterprises, automating customer experience and backed by top-tier venture capital.

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Secondary Market Price

Updated: 
Sep 2025
Current Preferred Price
Date:
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Prospect Projected Preferred
Current FMV
Date:
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Prospect Projected FMV
$10B
Company Valuation
Updated: 
Sep 2025
AI
Industry
San Francisco, CA
Headquarters
2023
Year Founded
60
Employee Count
--

Secondary Market Price

Updated: 
Sep 2025
Current Preferred Price
Date:
Sign in to view
Prospect Projected Preferred
Current FMV
Date:
Sign in to view
Prospect Projected FMV
$10B
Company Valuation
Updated: 
Sep 2025
AI
Industry
San Francisco, CA
Headquarters
2023
Year Founded
60
Employee Count
--
Est val $10B
+$13.13 (▲50%)
Jan, 2024 - Jan, 2025

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Prospect Projected Future Sierra Prices

Prospect’s machine learning model has been trained on the same data top-tier investors use to project the likely range of outcomes for Sierra's equity. Create a free account to view 10th-90th percentile projections over 2, 4, and 6 years.

Powerful tools to earn more from your equity

Company Description

Sierra is a software development company that builds a conversational artificial intelligence platform for enterprise businesses. Its core product, Agent OS, enables companies to create and deploy AI agents to handle customer service interactions, serving clients in sectors like financial services, healthcare, and retail. The company was founded in 2023 by Bret Taylor, the former Co-CEO of Salesforce, and Clay Bavor, a former VP at Google, and was originally named Applied Parameters. Since its inception, Sierra has grown rapidly, establishing offices in San Francisco, New York, London, and Atlanta while building a customer base that includes some of the world's largest companies.

Looking forward, Sierra is focused on aggressive growth, backed by a recent funding round that raised $350 million at a $10 billion valuation. The company plans to use this capital to invest in its platform, expand its U.S. operations, and pursue international expansion in Europe and Asia. A recent product announcement includes the launch of 'Voice Sims,' a feature allowing businesses to test their voice agents in simulated real-world scenarios before deployment. Sierra is also actively engaging with the broader tech community, hosting an event with leaders from OpenAI, Deepgram, and ElevenLabs to discuss the future of AI voice technology.

Sierra Notable Investors

  • Sequoia Capital
  • ICONIQ
  • Thrive Capital
  • Greenoaks Capital

Sierra Founders

  • Co-Founder, CEO Bret Taylor
  • Co-Founder, Clay Bavor

Peer Group Comparison

Vs Peer Group of >$4B Startups

Peer Group Comparison

How Sierra measures Up

To help you manage your Sierra equity, Prospect has run the company through our machine learning model.

Prospect Rating

3x

Our rating for Sierra is 3x, indicating the potential for its value to triple. For an employee with equity, this suggests your stock could grow to three times its initial worth.

Exit Risk

Moderate Risk

Our 'Moderate Risk' rating for Sierra is based on its backing by top investors, which places its likelihood of not reaching a liquidity event for employees in the middle range when compared to other startups.

Funding Stage

Series D

Sierra's Series D funding means it's a more established company that has already proven its value in the market. For you as a potential employee, this often points to a more stable work environment with clearer job roles.

Frequently Asked Questions

Is Anduril worth joining?

Joining Anduril as an employee is another way to acquire equity, typically through stock options included in compensation packages.

Is Sierra worth joining?

Sierra shows strong potential, backed by top-tier investors like Benchmark and Sequoia Capital and holding a recent valuation of $4.5 billion. To determine if it's the right fit for you, platforms like Prospect can help you evaluate the equity offer using the same data and models as venture capitalists.

What should I do with my Sierra stock?

As Sierra is a private company, your options are typically governed by the company's stock plan and any liquidity programs it may offer. Tools like Prospect are designed to help employees manage their startup equity by providing tax-optimized strategies and scenario modeling to maximize its value.

Can you sell Sierra stock?

Since Sierra is a private company, its stock is not traded on public exchanges, making it generally illiquid. Selling shares may be possible through secondary markets or company-tendered offers, and resources like Prospect can provide insights into secondary market pricing and tax-optimal selling strategies.

How can I find the value of my Sierra stock?

The most recent company valuation for Sierra is $4.5 billion, which provides a high-level indicator of its worth. To understand the specific value of your shares, you can use platforms like Prospect, which leverage VC-grade data and models to help project your equity's potential value.

What is Sierra's equity worth?

Sierra's latest equity valuation is $4.5 billion, based on its Series B funding round. The value of an individual's equity stake depends on the number of shares and the strike price, which can be evaluated using tools from Prospect to understand its potential worth.

What is Sierra's stock ticker symbol?

Sierra is a private company and does not have a stock ticker symbol. Ticker symbols are used to identify publicly traded companies on stock exchanges.

Can I buy or sell Sierra stock?

As a private, venture-backed startup, Sierra stock is not available for purchase by the general public on stock markets. Selling shares is also restricted and typically only possible through secondary markets or official company liquidity events.

What is the criteria to buy or invest in Sierra stock?

Investing in a private company like Sierra is typically restricted to accredited investors and institutional firms, such as venture capitalists, during organized funding rounds. The general public cannot buy shares until and unless the company pursues an Initial Public Offering (IPO).

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