Stack L8
Sierra
Recent Business Signals
Jun 1, 2026
acquisition
Sierra acquired Opera Tech (Tokyo) to expand AI capabilities for Japanese enterprises.
source: funding-research
Jun 1, 2026
acquisition
Sierra acquired Fragment (Paris) to expand agent-development capacity.
source: funding-research
May 4, 2026
funding
Sierra raised a $950 million Series E round at a $15.8 billion post-money valuation, led by Tiger Global and Google's GV with participation from Benchmark, Sequoia, and Greenoaks.
source: funding-research
May 4, 2026
funding
Sierra raised $950M Series E led by Tiger Global and Google's GV (with Benchmark, Sequoia, Greenoaks) at a $15.8B post-money valuation.
source: funding-research
May 1, 2026
acquisition
Sierra acquired Paris-based AI operations startup Fragment to expand agent-development capacity in France.
source: funding-research
May 1, 2026
funding
Sierra raised a $950 million Series E led by Tiger Global and GV, with participation from Benchmark, Sequoia, and Greenoaks, at a $15.8 billion post-money valuation.
source: funding-research
May 1, 2026
funding
Sierra closed a $950M Series E led by Tiger Global and Google's GV, with participation from Benchmark, Sequoia, and Greenoaks, at a $15.8B post-money valuation.
source: funding-research
May 1, 2026
funding
Sierra closed a $950M Series E at a $15.8B post-money valuation, led by Tiger Global and GV with participation from Benchmark, Sequoia, and Greenoaks.
source: funding-research
May 1, 2026
acquisition
Sierra acquired Tokyo-based enterprise AI startup Opera Tech to enhance native service for Japanese enterprises.
source: funding-research
Funding & valuation history
Jun 1, 2026 · funding-research
Sierra acquired Opera Tech (Tokyo) to expand AI capabilities for Japanese enterprises.
Jun 1, 2026 · funding-research
Sierra acquired Fragment (Paris) to expand agent-development capacity.
May 4, 2026 · funding-research
Sierra raised $950M Series E led by Tiger Global and Google's GV (with Benchmark, Sequoia, Greenoaks) at a $15.8B post-money valuation.
May 4, 2026 · funding-research
Sierra raised a $950 million Series E round at a $15.8 billion post-money valuation, led by Tiger Global and Google's GV with participation from Benchmark, Sequoia, and Greenoaks.
May 1, 2026 · funding-research
Sierra raised a $950 million Series E led by Tiger Global and GV, with participation from Benchmark, Sequoia, and Greenoaks, at a $15.8 billion post-money valuation.
May 1, 2026 · funding-research
Sierra closed a $950M Series E at a $15.8B post-money valuation, led by Tiger Global and GV with participation from Benchmark, Sequoia, and Greenoaks.
May 1, 2026 · funding-research
Sierra closed a $950M Series E led by Tiger Global and Google's GV, with participation from Benchmark, Sequoia, and Greenoaks, at a $15.8B post-money valuation.
May 1, 2026 · funding-research
Sierra acquired Tokyo-based enterprise AI startup Opera Tech to enhance native service for Japanese enterprises.
May 1, 2026 · funding-research
Sierra acquired Paris-based AI operations startup Fragment to expand agent-development capacity in France.
Sep 1, 2025 · funding-research
Sierra raised $350M Series C at a $10B valuation.
Recent Hiring (60 days)
No specialty signals in the last 60 days.