Enterprise GTM & RevOps AIGrowthClear buyer pullSierra
AI agents accountable for customer outcomes.
Company snapshot
- Stage
- Growth
- Funding
- Venture round · $950M · May 4, 2026
- Status
- published
- Updated
- Nov 8, 2026
- Views
- Category
- Enterprise GTM & RevOps AI
- Website
- sierra.ai
What they're building
AI agents accountable for customer outcomes. Sierra builds customer-facing AI agents that resolve requests and complete transactions across voice and digital channels, with a platform spanning development, deployment, and improvement.
Founders
Bret Taylor
Co-founder
Clay Bavor
Co-founder
Foundation model usage
Editorial estimates from product descriptions. Model providers and actual usage are not confirmed.
- Inferred architecture
- Real-time voice, Agentic loops, Code generation
- Potential advantages
- Workflow lock-in
- Estimated model demand
- High intensity
NYC footprint
- Documented NYC location
- 11 East 26th Street, New York, NY · Current occupancy not confirmed; see sources below.
Funding
Latest funding: Venture round · $950M · May 4, 2026. Lead investor: Tiger Global; GV.
Sources & location evidence
Open research desk ↗Profile source review: 2026-11-04. Current AI product, canonical identity, active operations and NYC presence. Funding not rechecked unless a linked funding correction is recorded. Official May 7, 2025 post announces the New York office, with later company post confirming it among operating offices. The latest company funding announcement says it is raising $950M and does not give a series letter; Growth is used rather than a third-party Series E label. Localized official pages carry English article text and exact dates.
- https://sierra.ai/uk/blog/sierra-expands-to-new-york ↗
- https://sierra.ai/uk/blog/theres-an-agent-for-that-and-it-runs-on-sierra ↗
- https://sierra.ai/es/blog/better-customer-experiences-built-on-sierra ↗
- https://sierra.ai/ ↗
- https://jobs.ashbyhq.com/Sierra/2c61a0f5-b4aa-4c06-86f0-991d6039de17 ↗
- https://jobs.ashbyhq.com/Sierra/869dc7e3-56a1-4e70-aa56-5f8f0c67974e ↗
- https://sierra.ai/about ↗
- https://sierra.ai/careers ↗
Manhattan · reported office
11 East 26th Street, New York, NY. Current occupancy not confirmed. Reported new lease; completed move-in was not verified. Sierra's primary May 2025 company announcement confirms a New York office and hiring but gives no street. Do not assume this lease means its earlier SoHo office has closed, or that employees already occupy the new space. No neighborhood assigned from Midtown South submarket terminology.
AI Firm Sierra Signs 94K-SF Deal at Rockrose’s 11 East 26th Street ↗Source checked 2026-11-03 · original source 2026-05-01
Notes
Sierra is tagged clear buyer pull based on buyer clarity, repeat workflow activity, public activity, and fit with the AI Atlas map.
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