This page is marked NOINDEX and hidden from search engines: fails the stub criteria, missing: a description sourced from the firm's own website, location, investment focus, stages or industries, portfolio: at least 2 two-sourced funding rounds on this site, or 1 plus 2 two-sourced outside deals (has 1 and 0).

Sienna Venture Capital

Sienna Venture Capital is an investor named in the Raise Track Update as backing Rein Security.

Type: Venture capital firm

About

The Raise Track Update names Sienna Venture Capital as an investor in: Rein Security (2026-10-08).

This page is not indexed by search engines yet. It is promoted once it meets the quality gate for investor pages: a description from the firm's own website, a headquarters city and at least two two-sourced rounds on this site.

Funding rounds on RaiseTrack

Company	Round	Date	Role
Rein Security	Series A 2026	2026-10-08	lead

Sources

Last verified: 2026-10-12

https://buttondown.com/raisetrack/archive/raise-track-update-2026-10-08/
Type: other verified public source. Accessed 2026-10-12.
Raise Track Update for 2026-10-08. Names Sienna Venture Capital as an investor in Rein Security.