Sierra

Business/Productivity Software · San Francisco, CA · Founded 2023 · Privately Held (backing)

Developer of a conversational artificial intelligence platform intended to empower enterprises with AI agents. Sierra is based in San Francisco, CA and was founded in 2023. It was valued at $10 billion at its later-stage round in Sep 2025, the last priced event on record. It has raised $635 million across 1 recorded round; the latest was a $175 million Series C in Nov 2024.

PMV mark · valuation
$10.0B
Oct 2026
Priced at
its later-stage round
Sep 2025
Total raised
$635.0M
Last round
Later Stage VC (Series C)
Nov 2024
How much has Sierra raised?
$635.0Macross 1 recorded rounds · Nov 2024 – Nov 2024

Most recently, Sierra raised $175.0M in its Later Stage VC (Series C) (Nov 2024).

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Sierra round by round

1 rounds
Nov 2024Later Stage VC (Series C)$175.0M▮
+ 1 more investors · free account

How much has Sierra raised?

Sierra has raised $635 million in total; 1 of its rounds is on record. The largest on record was a $175 million Series C in Nov 2024.

Sierra investors

12 investors are on record for Sierra, including Sequoia Capital, SV Angel, SoftBank Investment Advisers and Thrive Capital. By type, the record holds 9 venture capital firms, 1 family office and 1 growth equity firm. The Series C in Nov 2024 drew 5 investors.

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Frequently asked about Sierra

How much has Sierra raised?
Sierra has raised $635.0M in total across 1 recorded funding rounds.
When was Sierra's last funding round?
Sierra's most recent recorded round was Later Stage VC (Series C) in Nov 2024, raising $175.0M.