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Sierra

Sierra

Developer of an AI agent operating system for customer experiences

Operating headquarters
San Francisco, CA, US🇺🇸
Founded
2023
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Latest News About Sierra

OpenAI's latest features take direct aim at the app store model

TechCrunch

OpenAI's latest features take direct aim at the app store model

OpenAI is building out the pieces of an alternative to the traditional app store model, turning ChatGPT into a place where software can be...

Sep 29, 2026

Amid Personal Assistant Investor Frenzy, Town Nears $1 Billion Valuation in Round Led by Instinct-Backer Index Ventures

Newcomer

Amid Personal Assistant Investor Frenzy, Town Nears $1 Billion Valuation in Round Led by Instinct-Backer Index Ventures

Town, the buzzy enterprise personal agent, is raising at $1 billion, sources tell us

Aug 27, 2026

Consumer-focused AI assistant startup Instinct reportedly raising $250M

SiliconANGLE

Consumer-focused AI assistant startup Instinct reportedly raising $250M

SiliconANGLE reported the Series B round and placed Instinct within the wave of consumer AI agent products, noting the invite-only access...

Aug 27, 2026

Omilia raises $67M to scale its customer support platform

TechCrunch

Omilia raises $67M to scale its customer support platform

The Series B is the company's second fundraise since it last raised capital in 2020. In that time, it has increased its ARR by 10x to $60...

Aug 6, 2026

Smallest.ai raises $13M to build ultra-fast voice AI that sounds genuinely human

TechCrunch

Smallest.ai raises $13M to build ultra-fast voice AI that sounds genuinely human

The startup is building voice models designed to make AI phone calls pass the Turing test.

Jul 31, 2026

These AI startups are growing revenue at faster and faster rates

TechCrunch

These AI startups are growing revenue at faster and faster rates

There are a lot of fast-growing AI startups, but some are growing even faster, they say.

Jul 8, 2026