Sierra

At Sierra, we’re creating a platform to help businesses build better, more human customer experiences with AI. We are primarily an in-person company based in San Francisco, with growing offices in Atlanta, New York, London, Paris, Madrid, Munich, Singapore, Japan, and Sydney.

Sierra raised $950M in a funding round announced May 4, 2026, according to techcrunch.com. Across 3 sourced rounds it has raised $1.48B in total. Investors in that round: Tiger Global Management.

Raise history

1. September 29, 2026
   First seen by Recent Funding
   via startups.gallery
2. May 4, 2026
   Round · $950M
   TTiger Global Management (lead)
   Source: techcrunch.com (startups.gallery listing)
3. September 4, 2025
   Series A · $350M
   GGreenoaks (lead)
   Source: axios.com (startups.gallery listing)
4. October 28, 2024
   Seed · $175M
   GGreenoaks (lead)
   Source: techcrunch.com (startups.gallery listing)

Investors

• CConviction
• GGreenoaks
• GGV
• IICONIQ
• TThrive Capital
• TTiger Global Management

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• FFirecrawl$75M · Sep 22, 2026
• CCorridor$25M · Sep 21, 2026
• JJack & Jill$40M · Sep 19, 2026
• MMithr Inc.$20M · Sep 19, 2026

Every amount links to the page it came from. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/sierra.