Who has invested in Siro?

SignalFire are named among the investors backing Siro.

Siro Funding: $75M Raised, Series B (2025)

Siro funding overview

Siro is a SaaS company based in New York, NY. Siro has raised $75M in total disclosed funding. That places its disclosed total in the $25M–$100M range. Its most recent disclosed round is a Series B announced in May 2025. The round record for Siro runs through 2025; nothing later has been disclosed. Investors on record include SignalFire.

Siro at a glance

Total raised: $75M
Latest round: Series B
Latest round date: May 2025
Industry: SaaS
Headquarters: New York, NY
Notable investors: SignalFire

Frequently asked about Siro funding

How much has Siro raised?: Siro has raised $75M in total disclosed funding across the rounds on record.
Who has invested in Siro?: SignalFire are named among the investors backing Siro.
What was the latest Siro funding round?: The most recent disclosed round is a Series B, announced in May 2025.
Where is Siro based?: Siro is based in New York, NY.
What sector does Siro operate in?: Siro is tracked under SaaS from New York, NY, with $75M in disclosed funding.
When did Siro last raise?: The last disclosed Siro round closed in May 2025 at Series B.

Round data for Siro is compiled from public filings and announcements; blank fields mean nothing has been disclosed rather than nothing exists. Continue with the SaaS companies in New York and backer lists below.

Siro Funding: $75M Raised, Series B (2025)

Siro funding overview

Siro at a glance

Frequently asked about Siro funding

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