FundedIQ
Artificial Intelligence

Whisper: Funding, Investors & Team (Sep 2026)

Whisper, a cybersecurity startup located in Amsterdam, has recently come out of stealth mode to tackle the increasing challenges of online threats using a unique, data-driven strategy. Their platform is designed to give organizations early alerts and effective intelligence to combat coordinated cyber attacks from multiple sources.

www.whisper.security LinkedIn Amsterdam, Netherlands 1-10 employees
Artificial Intelligence (AI) Cyber Security Information Technology B2B
Total raised
$1.9M
Rounds
1
Latest
Pre-Seed
Jul 2025

Whisper has raised $1.9M across 1 funding round on record, the most recent a Pre-Seed of $1.9M announced in Jul 2025.

That round is below the $5.5M median round size for Artificial Intelligence companies tracked on FundedIQ over the last two years.

Whisper Company Profile and Key Stats

Total funding raised
$1.9M
across 1 round on record
Funding rounds on record
1
Latest funding round
Pre-Seed
$1.9M in Jul 2025
Employees
1-10
reported band
Headquarters
Amsterdam, Netherlands

Latest funding round on record: Jul 2025.

Whisper Funding Rounds

Date
Round
Amount
Pre-Seed
$1.9M

Whisper Founders and Leadership Team

Name
Role
Contact
Leonardo Calisse
Founder
Locked

Contact details for the Whisper team: 1 of 1 has an email address on file.

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Whisper Funding Compared to Other Artificial Intelligence Startups

Segment
Companies
Median round
740
$5.0M
5,801
$600K

Whisper's latest round of $1.9M is below the median round in Artificial Intelligence. Medians cover the last 24 months of disclosed rounds.

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Whisper Funding FAQs

What does Whisper do?

Whisper, a cybersecurity startup located in Amsterdam, has recently come out of stealth mode to tackle the increasing challenges of online threats using a unique, data-driven strategy. Their platform is designed to give organizations early alerts and effective intelligence to combat coordinated cyber attacks from multiple sources.

How much funding has Whisper raised?

Whisper has raised $1.9M across 1 round on record. The most recent is a Pre-Seed of $1.9M announced in Jul 2025.

When did Whisper last raise funding?

Whisper's most recent funding round on record is a Pre-Seed of $1.9M, announced in Jul 2025.

Who founded Whisper?

FundedIQ lists Leonardo Calisse (Founder) at Whisper.

Where is Whisper headquartered?

Whisper is based in Amsterdam, Noord-Holland, Netherlands.

How many employees does Whisper have?

Whisper is in the 1-10 employee band.

How does Whisper's funding compare to other Artificial Intelligence startups?

Whisper's latest round of $1.9M is below the $5.5M median round size for Artificial Intelligence companies on FundedIQ across 7,233 tracked companies over the last two years.

About FundedIQ's Whisper Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Whisper is left off this page rather than filled in.

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