Latest Sierra News & Updates

See the latest news and media coverage for Sierra. We track all announcements, press releases, and industry mentions in real time, all in one place.

Sierra

Conversational AI platform for customer experience

sierra.ai

Headquarters: San Francisco, United States
Company type: Private company
Number of employees: 200–1,000
Industry: IT Services & Consulting

Last updated Today

Latest news about Sierra

In short: Sierra raised $950 million at a $15 billion valuation and accelerated its global expansion through several key AI startup acquisitions.

Company announcements

July 23 Sierra

Sierra acquires Takeoff

Takeoff's agent runtime will combine with Sierra's platform to build Horizon, focusing on outcome-based revenue.

July 16 Sierra

Sierra announces Horizon platform for long-horizon agent goals

Horizon enables agents to pursue goals like loan origination or healthcare prior authorization over days or weeks, learning from interactions.

July 14 Sierra

Sierra announces a partnership with SoftBank Corp.

SoftBank will be Sierra's exclusive sales partner in Japan, using its AI platform to improve customer experiences.

June 10 Sierra

Sierra achieves FedRAMP High certification

The certification allows Sierra to offer its AI agent platform to U.S. federal agencies, achieved in under two years with Knox Systems.

Media coverage

July 23 Techmeme

Sierra acquires Takeoff, which develops “long-horizon” agents, for an undisclosed sum; founded in 2025, Takeoff neared $10M in annualized revenue in early July

The Information: Sierra acquires Takeoff, which develops “long-horizon” agents, for an undisclosed sum; founded in 2025, Takeoff neared $10M in annualized revenue in early July...

May 7 MSN

Sierra gets $950 million in fresh funding

Sierra has raised $950 million from new and existing investors, led by Tiger Global and GV, at a valuation of over $15 billion. Sierra now...

May 5 Yahoo Finance

ibex Announces Strategic Partnership with Sierra to Transform Customer Experiences with AI Agents

Partnership combines best-in-class CX expertise, integration, and analytics with the market-leading conversational AI platform to enable seamless, end-to-end CX from AI agent to support team...

May 4 The Information

AI Startup Sierra Says It's Raising at Over $15 Billion Valuation

Sierra, a three-year-old startup that makes agents for managing client relationships, said Monday it is raising $950 million in a funding round led by Tiger...

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