About Sierra
Sierra is a company based in United States founded in 2023 by Clay Bavor and Bret Taylor. It operates as a AI-as-a-Service and SaaS (Software-as-a-Service). Sierra has raised $1.59 billion across 4 funding rounds from investors including Greenoaks, Iconiq Capital and Thrive Capital. Sierra has completed 1 acquisition, including Fragment. Sierra offers products and services including AI Agent, Agent OS, and Voice.
- Headquarter United States
- Founders Clay Bavor, Bret Taylor
-
Sectors
Technology
-
Phone
Locked
-
Website
Locked
-
Social
Locked
- Legal Name Sierra Technologies, Inc.
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Products & Services of Sierra
Sierra offers a comprehensive portfolio of products and services, including AI Agent, Agent OS, and Voice.
AI agent is deployed for customer engagement and support.
Platform is used to build and manage AI agents.
Voice tool is provided for personalized customer phone calls.
People of Sierra
Unlock access to complete
Funding Insights of Sierra
Sierra has successfully raised a total of $1.59B across 4 strategic funding rounds. The most recent funding activity was a Series C round of $950 million completed in May 2026. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in Sierra
Sierra has secured backing from 7 investors, including venture fund investors. Prominent investors backing the company include Greenoaks, Iconiq Capital and Thrive Capital.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
|
Tech-enabled businesses are funded by Greenoaks venture capital firm.
|
Locked | Locked | Locked | |
|
Provider of investment management and real asset services
|
Locked | Locked | Locked | |
|
Early-stage technology startups are invested in by Thrive Capital.
|
Locked | Locked | Locked |
Investor details for Sierra
Investor domains, locations, round participation, and complete history require an active premium plan.
- Investor domains
- Investor locations
- Funding rounds
- Participation history
Verified entity values are shown only after access is granted.
Investments & Acquisitions by Sierra
Sierra has strategically engaged in corporate development activities, having acquired 1 company. Notable acquisitions include Fragment.
Investment portfolio details for Sierra
Portfolio company identities, transaction dates, round details, and investment values require an active premium plan.
- Portfolio identities
- Transaction dates
- Round details
- Investment values
Verified entity values are shown only after access is granted.
| Company Name | Description | Domain | Location | Founded Year | Amount |
|---|---|---|---|---|---|
|
AI-interfaced workflow automation solutions are provided for enterprises.
|
Locked | Locked | 2023 | Locked |
Complete acquisition details for Sierra
Transaction dates, acquired stakes, disclosed values, domains, and locations require an active premium plan.
- Transaction dates
- Acquired stakes
- Disclosed values
- Domains and locations
Verified entity values are shown only after access is granted.
Financial Statements - Sierra
Detailed financials for Sierra
Historical revenue, profit, statement rows, ratios, and trend charts require an active premium plan.
- Historical revenue
- Profit trends
- Statement rows
- Financial ratios
Verified entity values are shown only after access is granted.
Sierra Comparisons
Peer comparison for Sierra
Named peer metrics, headcount, funding, location, and side-by-side benchmarks require an active premium plan.
- Named peers
- Headcount comparison
- Funding comparison
- Operating benchmarks
Verified entity values are shown only after access is granted.
Competitors of Sierra
Detailed competitors of Sierra
Competitor domains, locations, full profiles, and operating metrics require an active premium plan.
- Domains and locations
- Full company profiles
- Operating metrics
- Competitive positioning
Verified entity values are shown only after access is granted.
Latest news on Sierra
Complete news archive for Sierra
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Frequently Asked Questions about Sierra
Sierra was founded in 2023 and raised its 1st funding round 1 year after it was founded.
Sierra is headquartered in United States.
Sierra is a funded company, having raised a total of $1.59B across 4 funding rounds to date.
Sierra is engaged in developing AI-driven solutions to improve customer experiences across various industries. The company is specialized in conversational AI agents that support real-time customer interactions, problem-solving, and personalized communication. Services are provided to sectors such as financial services, healthcare, telecommunications, media, travel, hospitality, retail, consumer goods, and technology. AI agents are built to be empathetic, always available, and aligned with brand identity. Integration with existing systems is ensured for seamless operation, while trust, security, and compliance are prioritized in all solutions.
Sierra offers AI Agent, Agent OS, and Voice.
Sierra has made 1 acquisition, including Fragment.
Sierra has 7 investors. Key investors include Greenoaks, Iconiq Capital, Thrive Capital, Sequoia Capital, and Benchmark.