Sierra News
Latest news, updates, and announcements from Sierra.
Sierra acquires Takeoff, launches Horizon platform for long-horizon enterprise agents
Sierra has acquired AI agent startup Takeoff and launched Horizon, a joint platform for long-running, outcome-driven enterprise agents. Takeoff grew from $0 to nearly eight figures in annual recurring...
Sierra Acquires Takeoff to Diversify Its AI Agent Business
Sierra, an AI customer service startup, has acquired agent startup Takeoff to expand its AI agent capabilities and diversify its business offerings. The deal reflects ongoing consolidation in the AI a...
Sierra raises $950M from Tiger Global and GV for AI customer service agents
Sierra, an AI startup building conversational agents for enterprise customer service, has raised $950 million in a funding round led by Tiger Global and GV, according to a report from Tech in Asia. Th...
Sierra raises $950M Series E at $15.8B valuation, led by Tiger Global and GV
Sierra, the AI customer service agent startup co-founded by OpenAI chairman Bret Taylor, announced a $950 million Series E round led by Tiger Global and GV (Google Ventures), with participation from B...
Sierra raises $950M at $15.8B valuation for agentic AI platform
Sierra, a developer of agentic AI systems for enterprise customer service, has raised $950 million in a funding round led by Tiger Global and GV, lifting its valuation nearly 60% to $15.8 billion post...
Sierra raises $950M at $15B+ valuation, claims 40% of Fortune 50 as customers
Sierra, the AI customer experience startup led by Bret Taylor, announced a $950 million funding round led by Tiger Global and GV, pushing its post-money valuation above $15 billion. The company claims...
Sierra ($10B valuation, ~$150M ARR) has acquired Opera Tech, a Tokyo-based AI contact center startup...
Sierra ($10B valuation, ~$150M ARR) has acquired Opera Tech, a Tokyo-based AI contact center startup founded by ex-McKinsey consultants, just 4 months after opening its Japan office with SoftBank Visi...
Sierra has reached a 10 billion dollar valuation after securing 350 million dollars to scale its age...
Sierra has reached a 10 billion dollar valuation after securing 350 million dollars to scale its agentic AI for enterprises. The platform manages over 1 million monthly interactions for Rocket Mortgag...
Sierra AI reached 100 million dollars in annual recurring revenue in only 21 months, securing a 10 b...
Sierra AI reached 100 million dollars in annual recurring revenue in only 21 months, securing a 10 billion dollar valuation at a 100x revenue multiple. This marks the transition from experimental chat...
Sierra AI recently secured $350 million in funding, pushing its valuation to $10 billion by Septembe...
Sierra AI recently secured $350 million in funding, pushing its valuation to $10 billion by September 2025, underscoring significant investor confidence in autonomous AI agents. This growth highlights...