Sierra

Research Team Data Published Compare

Summary

Platform for building enterprise-grade customer service AI agents.

Description

Enterprise platform focused on reliable AI-powered customer service interactions and integrations.

Positioning

Customer service AI agents

Key facts

HQ location
San Francisco, CA, USA
Founded
2023
Employee range
201-500 (~488)
Funding stage
Company type
Private
Pricing model
Subscription (Enterprise SaaS pricing)
Last updated

Financials

Revenue estimate
$150M ARR (Feb 2026)
Valuation estimate
$15B+ (May 2026)
Investments
$1.58B total (Series: $75M 2023; $175M late 2024; $350M Sep 2025; $950M May 2026 led by Tiger Global/GV)

Relationships

Target customers
Large enterprises and consumer brands
Key competitors
Ada, Intercom, Zendesk, Forethought
Known customers
Unknown

Classification (raw research text)

Core focus
AI customer support automation
Core industry
Customer support
Core category
Customer service AI agents

Shown verbatim from the research spreadsheet — deriving structured industry tags from this text is a future phase.

Segments, Industries & Certifications

Segments

AI Workflows, AI Agents, AI Developer Tools, Knowledge & RAG, AI Quality & Observability, AI Governance & Risk, Call Analysis, Chatbots, Voice AI Agents, STT/TTS Infrastructure, Analytics & BI

Industries

Customer Support / CX