Sierra

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Sierra helps businesses build better, more human customer experiences with AI.

Company Details

Employees
299
Address
San Francisco, California, Us
Phone
+ 1 905 814 8800
Email
uc****@****ail.com
Industry
Software Development
NAICS
Software Publishers
Keywords
volume.
HQ
San Francisco, California
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News

Ex-Salesforce co-CEO Bret Taylor's Sierra is the latest $10 billion AI startup - CNBC

Ex-Salesforce co-CEO Bret Taylor's Sierra is the latest $10 billion AI startup CNBC

AI Platform Sierra Inks 15K-SF Deal at 375 West Broadway - Commercial Observer

AI Platform Sierra Inks 15K-SF Deal at 375 West Broadway Commercial Observer

AI firm Sierra leases full floor in SoHo - The Business Journals

AI firm Sierra leases full floor in SoHo The Business Journals

AI startup Sierra opens first New York office with SoHo lease - Crain's New York Business

AI startup Sierra opens first New York office with SoHo lease Crain's New York Business

Bret Taylor’s Sierra raises $350M at a $10B valuation - TechCrunch

Bret Taylor’s Sierra raises $350M at a $10B valuation TechCrunch

Smallest.ai raises $8 mn seed round led by Sierra Ventures for expansion - Business Standard

Smallest.ai raises $8 mn seed round led by Sierra Ventures for expansion Business Standard

Smallest.ai raises $8 Mn in seed funding led by Sierra Ventures - Entrackr

Smallest.ai raises $8 Mn in seed funding led by Sierra Ventures Entrackr

R1 acquires Phare Health, boosting AI abilities - Modern Healthcare

R1 acquires Phare Health, boosting AI abilities Modern Healthcare

Sierra CEO Bret Taylor Predicts A.I. Agents Will Redefine Business Like the Internet - observer.com

Sierra CEO Bret Taylor Predicts A.I. Agents Will Redefine Business Like the Internet observer.com

Sierra CEO Bret Taylor on why the AI bubble feels like the dotcom boom - The Verge

Sierra CEO Bret Taylor on why the AI bubble feels like the dotcom boom The Verge

AI agent startup Sierra raises $350M in funding at $10B valuation - SiliconANGLE

AI agent startup Sierra raises $350M in funding at $10B valuation SiliconANGLE

R1 Announces Strategic Partnership with Sierra to Revolutionize AI-Driven Experiences in Healthcare - GlobeNewswire

R1 Announces Strategic Partnership with Sierra to Revolutionize AI-Driven Experiences in Healthcare GlobeNewswire

Sierra’s Bret Taylor and Harvey’s Winston Weinberg: Where the AI Agent War Will Be Won - The Information

Sierra’s Bret Taylor and Harvey’s Winston Weinberg: Where the AI Agent War Will Be Won The Information

Marketing leaders say AI is rewriting how brands reach Gen Z and millennials: ‘Forget what you know; learn this’ - Fortune

Marketing leaders say AI is rewriting how brands reach Gen Z and millennials: ‘Forget what you know; learn this’ Fortune

Bret Taylor Drives AI Agent Innovation with $10B Sierra Valuation - WebProNews

Bret Taylor Drives AI Agent Innovation with $10B Sierra Valuation WebProNews

Rezolve Ai Highlights Significant Valuation Discount vs. Leading AI Peers - Yahoo Finance

Rezolve Ai Highlights Significant Valuation Discount vs. Leading AI Peers Yahoo Finance

Sierra Ventures leads $8 million seed funding round in Smallest.ai - Zee Business

Sierra Ventures leads $8 million seed funding round in Smallest.ai Zee Business

US-based AI startup Sierra nears $350m round at $10b valuation - Tech in Asia

US-based AI startup Sierra nears $350m round at $10b valuation Tech in Asia

48. Sierra - CNBC

48. Sierra CNBC

Sierra CEO and OpenAI Chair on Rising AI Costs, GPT-5, and AI Data Wars - The Information

Sierra CEO and OpenAI Chair on Rising AI Costs, GPT-5, and AI Data Wars The Information

OpenAI Chair’s Conversational AI Startup Raises $350 Million - PYMNTS.com

OpenAI Chair’s Conversational AI Startup Raises $350 Million PYMNTS.com

Why AI Model Makers Might Develop Like Cable and Cellular Companies - The Information

Why AI Model Makers Might Develop Like Cable and Cellular Companies The Information

Sierra AI’s Agent LLM: The $4.5B Startup That Out-Engineered OpenAI - FourWeekMBA

Sierra AI’s Agent LLM: The $4.5B Startup That Out-Engineered OpenAI FourWeekMBA

Sierra Announces $350M in Funding at $10B Valuation to Expand AI Customer Service Agents - AI Insider

Sierra Announces $350M in Funding at $10B Valuation to Expand AI Customer Service Agents AI Insider

Sierra Co-Founder Clay Bavor on Making Customer-Facing AI Agents Delightful - Sequoia Capital

Sierra Co-Founder Clay Bavor on Making Customer-Facing AI Agents Delightful Sequoia Capital

Funnel launches new standalone multifamily AI platform: Fenix, powered by Sierra - PR Newswire

Funnel launches new standalone multifamily AI platform: Fenix, powered by Sierra PR Newswire

AI Startup Sierra Raises $350M at $10B Valuation Led by Greenoaks - WebProNews

AI Startup Sierra Raises $350M at $10B Valuation Led by Greenoaks WebProNews

Bret Taylor’s AI Startup Sierra Valued at $10 Billion - Bloomberg.com

Bret Taylor’s AI Startup Sierra Valued at $10 Billion Bloomberg.com

AI startup Sierra, led by former Salesforce exec, raises $350M at $10B valuation (CRM:NYSE) - Seeking Alpha

AI startup Sierra, led by former Salesforce exec, raises $350M at $10B valuation (CRM:NYSE) Seeking Alpha

Exclusive: Former Netflix CCO Rachel Whetstone joins Bret Taylor's AI startup - Axios

Exclusive: Former Netflix CCO Rachel Whetstone joins Bret Taylor's AI startup Axios

Bret Taylor's AI startup just doubled the size of its San Francisco HQ - The Business Journals

Bret Taylor's AI startup just doubled the size of its San Francisco HQ The Business Journals

OpenAI board chair Bret Taylor says we’re in an AI bubble (but that’s OK) - TechCrunch

OpenAI board chair Bret Taylor says we’re in an AI bubble (but that’s OK) TechCrunch

Google dodges one antitrust bullet, Anthropic keeps the AI boom going, AI winners and losers - SiliconANGLE

Google dodges one antitrust bullet, Anthropic keeps the AI boom going, AI winners and losers SiliconANGLE

Sierra Leone Turns to AI to Modernize Public Services - We are Tech

Sierra Leone Turns to AI to Modernize Public Services We are Tech

A Marc Benioff Protégé Has Morphed Into Salesforce’s Big Worry - The Information

A Marc Benioff Protégé Has Morphed Into Salesforce’s Big Worry The Information

Top 10 AI Agents in 2025. Recently, Mark Zuckerberg said, “The… | by Devashish Datt Mamgain - DataDrivenInvestor

Top 10 AI Agents in 2025. Recently, Mark Zuckerberg said, “The… | by Devashish Datt Mamgain DataDrivenInvestor

AI agent startup Sierra nears $350 million round at $10 billion valuation - The Economic Times

AI agent startup Sierra nears $350 million round at $10 billion valuation The Economic Times

Field Notes: Finding AI winners in Silicon Valley | - Fidelity International

Field Notes: Finding AI winners in Silicon Valley | Fidelity International

AI 50: AI Agents Move Beyond Chat - Sequoia Capital

AI 50: AI Agents Move Beyond Chat Sequoia Capital

Sierra's $4.5B Business Model: How Bret Taylor Built the AI Agent That Makes Human Support Obsolete - FourWeekMBA

Sierra's $4.5B Business Model: How Bret Taylor Built the AI Agent That Makes Human Support Obsolete FourWeekMBA

AI Chatbots Are Ready to Talk to Customers. Sort of. - The Wall Street Journal

AI Chatbots Are Ready to Talk to Customers. Sort of. The Wall Street Journal

Could AI Help Humanity Understand Whales? - Sierra Club

Could AI Help Humanity Understand Whales? Sierra Club

Cognigy Sells for $955M in the Latest AI Unicorn Exit: But Was There Even an AI Premium at All? - SaaStr

Cognigy Sells for $955M in the Latest AI Unicorn Exit: But Was There Even an AI Premium at All? SaaStr

Government Partners with Qhala to Boost AI Adoption Across Sierra Leone’s Civil Service - TechAfrica News

Government Partners with Qhala to Boost AI Adoption Across Sierra Leone’s Civil Service TechAfrica News

At Sierra AI Agents Are the Product and the Business Model - AIM Media House

At Sierra AI Agents Are the Product and the Business Model AIM Media House

AI Customer Support Startups Intercom, Kore.ai Discuss Multibillion-Dollar Valuations With Investors - The Information

AI Customer Support Startups Intercom, Kore.ai Discuss Multibillion-Dollar Valuations With Investors The Information

Sierra in Talks to Raise $350 Million at $10 Billion Valuation - The Information

Sierra in Talks to Raise $350 Million at $10 Billion Valuation The Information

Sierra Leone Launches Groundbreaking AI Readiness Assessment with World Bank Support - TechAfrica News

Sierra Leone Launches Groundbreaking AI Readiness Assessment with World Bank Support TechAfrica News

Apple Will Need to Leave Its M&A Comfort Zone to Succeed in AI - Bloomberg.com

Apple Will Need to Leave Its M&A Comfort Zone to Succeed in AI Bloomberg.com

Sierra Ventures On The 5 Layers Of AI Startup Investment - Crunchbase News

Sierra Ventures On The 5 Layers Of AI Startup Investment Crunchbase News

Joe Kopacz Named AI Tech VP at SNC - ExecutiveBiz

Joe Kopacz Named AI Tech VP at SNC ExecutiveBiz

OpenAI chairman says training your own AI model is a good way to 'destroy your capital' - businessinsider.com

OpenAI chairman says training your own AI model is a good way to 'destroy your capital' businessinsider.com

The future of workplace chat: more AI agents, fewer humans - Axios

The future of workplace chat: more AI agents, fewer humans Axios

This 35-year-old investor has backed the hottest companies in AI, from Mistral to Sierra - Fortune

This 35-year-old investor has backed the hottest companies in AI, from Mistral to Sierra Fortune

Institutional investors build positions in Rezolve Ai as ownership tops 10% By Investing.com - Investing.com

Institutional investors build positions in Rezolve Ai as ownership tops 10% By Investing.com Investing.com

Here Are the 46 Most Disruptive Leaders in the Artificial Intelligence Industry - Built In

Here Are the 46 Most Disruptive Leaders in the Artificial Intelligence Industry Built In

AI Leasing Surge in San Francisco as AI Startup Sierra Expands - Commercial Search

AI Leasing Surge in San Francisco as AI Startup Sierra Expands Commercial Search

Exclusive: These tech executives want to support AI agents with more AI - Axios

Exclusive: These tech executives want to support AI agents with more AI Axios

Why Rezolve AI Stock Skyrocketed This Week - The Globe and Mail

Why Rezolve AI Stock Skyrocketed This Week The Globe and Mail

OpenAI Chairman Says AI Is Destroying His Sense of Who He Is - Futurism

OpenAI Chairman Says AI Is Destroying His Sense of Who He Is Futurism

Apple Has No Need to Panic-Buy Its Way to AI Glory - Bloomberg.com

Apple Has No Need to Panic-Buy Its Way to AI Glory Bloomberg.com

Funnel Launches New Standalone Multifamily AI Platform Fenix Powered By Sierra - Yield PRO

Funnel Launches New Standalone Multifamily AI Platform Fenix Powered By Sierra Yield PRO

OpenAI Chairman’s Sierra to Raise $350 Million: Report - Analytics India Magazine

OpenAI Chairman’s Sierra to Raise $350 Million: Report Analytics India Magazine

World's Top 20 Most Profitable AI Agent Companies List Revealed: #1 Earns Up to $500M, Two Key Trends to Note - 36Kr

World's Top 20 Most Profitable AI Agent Companies List Revealed: #1 Earns Up to $500M, Two Key Trends to Note 36Kr

Voice AI Startup Smallest.ai Raises $8 Mn Seed Funding From Sierra Ventures, 3one4 Capital & Others - BW Disrupt

Voice AI Startup Smallest.ai Raises $8 Mn Seed Funding From Sierra Ventures, 3one4 Capital & Others BW Disrupt

'Slapping ChatGPT Together Is Not Hard': OpenAI Chair And Sierra CEO Bret Taylor On Guardrails, GPT-5 Coding Gains & Big-Brand Deployments - Benzinga

'Slapping ChatGPT Together Is Not Hard': OpenAI Chair And Sierra CEO Bret Taylor On Guardrails, GPT-5 Coding Gains & Big-Brand Deployments Benzinga

Sierra Vista explores tourism growth through sports and data analytics - Citizen Portal AI

Sierra Vista explores tourism growth through sports and data analytics Citizen Portal AI

Advanced AI Leadership Executive Education Program - Stanford HAI

Advanced AI Leadership Executive Education Program Stanford HAI

AI Is Marc Benioff’s Friend—and Foe - The Information

AI Is Marc Benioff’s Friend—and Foe The Information

Sierra Leone Launches National AI Readiness Assessment with World Bank Support - iAfrica.com

Sierra Leone Launches National AI Readiness Assessment with World Bank Support iAfrica.com

Sierra Vista Residents Demand Clarity on Resolutions Aimed at Election Compliance - Citizen Portal AI

Sierra Vista Residents Demand Clarity on Resolutions Aimed at Election Compliance Citizen Portal AI

Bret Taylor’s AI startup Sierra raises funding at $4.5 billion valuation - CNBC

Bret Taylor’s AI startup Sierra raises funding at $4.5 billion valuation CNBC

In a world of AI, do customers still want to speak to a human? - Maddyness

In a world of AI, do customers still want to speak to a human? Maddyness

Five Predictions for AI in 2025 - Madrona

Five Predictions for AI in 2025 Madrona

Tata Sierra: AI-Powered Launch Video Coming Soon - Cartoq

Tata Sierra: AI-Powered Launch Video Coming Soon Cartoq

Efficiency Meets Empathy: How AI Is Redefining Customer Service - Forbes

Efficiency Meets Empathy: How AI Is Redefining Customer Service Forbes

Sierra Nevada Forum on Artificial Intelligence on February 11th at the Brewery Arts Center - Carson Now

Sierra Nevada Forum on Artificial Intelligence on February 11th at the Brewery Arts Center Carson Now

Cognition Joins the $10bn AI Club After $400m Raise, Riding Windsurf Acquisition Momentum - Tekedia

Cognition Joins the $10bn AI Club After $400m Raise, Riding Windsurf Acquisition Momentum Tekedia

Facebook user posts AI-generated images to portray non-existent “tourist” side of Sierra Leone - Dubawa - Dubawa

Facebook user posts AI-generated images to portray non-existent “tourist” side of Sierra Leone - Dubawa Dubawa

News | AI Startup Inks San Francisco Lease in Latest Recovery Signal for Hard-Hit Office Market - CoStar

News | AI Startup Inks San Francisco Lease in Latest Recovery Signal for Hard-Hit Office Market CoStar

AI startups are snatching up San Francisco real estate as Gen Z craves office life - CNBC

AI startups are snatching up San Francisco real estate as Gen Z craves office life CNBC

Top News Today: OpenAI’s AI Chip Coming in 2026, Sierra Raises $350M at $10B Value and More - Analytics Insight

Top News Today: OpenAI’s AI Chip Coming in 2026, Sierra Raises $350M at $10B Value and More Analytics Insight

How Sierra Nevada’s AI-powered CTV campaign captured consumer attention - Marketing Dive

How Sierra Nevada’s AI-powered CTV campaign captured consumer attention Marketing Dive

AI-Made Tata Sierra Ad Goes Viral, And It’s Not From Tata Motors - Times Now

AI-Made Tata Sierra Ad Goes Viral, And It’s Not From Tata Motors Times Now

OpenAI chair's AI startup Sierra gets $4.5 bln valuation in latest funding round - Reuters

OpenAI chair's AI startup Sierra gets $4.5 bln valuation in latest funding round Reuters

Sierra Leone car wash AI-generated - Dubawa - Dubawa

Sierra Leone car wash AI-generated - Dubawa Dubawa

How Sierra is rethinking customer experience in the age of AI - TechCrunch

How Sierra is rethinking customer experience in the age of AI TechCrunch

ADT Partners with Sierra for Better AI Customer Support - Analytics India Magazine

ADT Partners with Sierra for Better AI Customer Support Analytics India Magazine

Picture of bus station in Sierra Leone AI-generated - Dubawa - Dubawa

Picture of bus station in Sierra Leone AI-generated - Dubawa Dubawa

Sierra Raises $350 Million Valued at $10 Billion - Startup Ecosystem Canada

Sierra Raises $350 Million Valued at $10 Billion Startup Ecosystem Canada

Sierra: Conversational AI Company Raises $175 Million At $4.5 Billion Valuation - Pulse 2.0

Sierra: Conversational AI Company Raises $175 Million At $4.5 Billion Valuation Pulse 2.0

Sierra Secures $175 Million in Funding - The SaaS News

Sierra Secures $175 Million in Funding The SaaS News

AI Startup Sierra’s Vision: AI Agents That Work for You - AI Insider

AI Startup Sierra’s Vision: AI Agents That Work for You AI Insider

Picture of Fourah Bay College in Sierra Leone, AI-generated - Dubawa - Dubawa

Picture of Fourah Bay College in Sierra Leone, AI-generated - Dubawa Dubawa

AI is mega theme to power global expansion through 2026 - The Sierra Leone Telegraph

AI is mega theme to power global expansion through 2026 The Sierra Leone Telegraph

Upcoming Tata Sierra Gets An Unofficial, AI-Generated TVC! - Cartoq

Upcoming Tata Sierra Gets An Unofficial, AI-Generated TVC! Cartoq

Michael Ovitz Backs Agentic AI Startup Vapi With $20M to Build Voice Agents - StartupHub.ai

Michael Ovitz Backs Agentic AI Startup Vapi With $20M to Build Voice Agents StartupHub.ai

Conversational AI startup Sierra secures $175m funding - Yahoo Finance

Conversational AI startup Sierra secures $175m funding Yahoo Finance

Bret Taylor’s customer service AI startup just raised $175M - TechCrunch

Bret Taylor’s customer service AI startup just raised $175M TechCrunch

AI startup Sierra’s new benchmark shows most LLMs fail at more complex tasks - SiliconANGLE

AI startup Sierra’s new benchmark shows most LLMs fail at more complex tasks SiliconANGLE

Top Sierra Employees

  • Kylie Maddex

    Kylie Maddex

    n/a

    San Francisco Bay Area, United States
    4
    gmail.com, powertofly.com, gmail.com, slack-corp.com

    2 +141541XXXXX

  • Jake Donham

    Jake Donham

    Programmer

    San Francisco, California, United States, United States
    6
    twitter.com, gmail.com, donham.org, skydeck.com, gmail.com, skydeck.com

    1 +141522XXXXX

  • Eve Galazin

    Eve Galazin

    n/a

    San Francisco Bay Area, United States
  • David Hendee

    David Hendee

    n/a

    Alameda, California, United States, United States
    6
    yahoo.com, gmail.com, msn.com, hotmail.com, enginered.com, carbonfive.com

    8 +141554XXXXX

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