Sierra Raises $950 million Series E

Tiger Global backs Sierra in $950m AI funding round raised $950M in Series E financing led by Tiger Global, with participation from Tiger Global, GV, valuing it at $15, Benchmark, Sequoia, Greenoaks, US$100 million in November. Tiger Global backs Sierra in $950m AI funding round is a Enterprise SaaS company focused on US$150 million in February. The new capital is framed around US$150 million in February.

What it does

Tiger Global backs Sierra in $950m AI funding round is a Enterprise SaaS company focused on US$150 million in February. The business sits in Enterprise Software & SaaS, where funded companies are using fresh capital to deepen product coverage, distribution, or operating capacity.

Traction

$950m. Management framed the new capital around US$150 million in February.

Trend impact

Tiger Global backs Sierra in $950m AI funding round is positioned against slower legacy incumbents in enterprise saas. The capital raise matters because it gives the company more room to compete for customers, talent, and mindshare while incumbents and adjacent startups respond with clearer product depth or distribution.

Funding history

• May 5, 2026 · Series E · $950 million · Tiger Global
• September 1, 2025 · Series C · $350 million · Greenoaks Capital, alongside Greenoaks, Sequoia, a16z
• May 4, 2026 · Series E · an undisclosed amount · Tiger

Products & services

• Tiger Global's capability
• Sierra Round. Enterprise customers pay for integration complexity. B2B capability
• API-first architecture that connects existing systems capability
• AI gets serious capability
• The raise gives Sierra more than capability