About Whisper

Building the Infrastructure Intelligence Layer for the Internet

Whisper is on a mission to help organizations understand and protect the infrastructure that powers the internet.

Our Mission

We believe that understanding the internet's infrastructure is the key to defending it.

Whisper is building the real-time intelligence layer that connects routing, DNS, hosting, and ownership data into a unified graph — giving security and risk teams the context they need to make faster, better decisions.

2025

Founded

€1.6M

Pre-seed raised

Top 0.4%

Antler cohort

Our Story

From Insight to Impact

The Beginning

Founded in January 2025 from Antler’s fall 2024 program — selected from the top 0.41% of over 8,000 startups. Our founders saw that the internet’s infrastructure data was fragmented across siloed systems, making it nearly impossible for security teams to connect the dots.

The Problem

Routing, DNS, hosting, and ownership data existed in isolated databases. Security teams lacked the unified context needed to detect threats early and respond fast. We set out to build the intelligence layer that connects it all.

The Solution

Whisper’s real-time infrastructure intelligence platform unifies internet data into a single knowledge graph. We give security and risk teams the visibility they need to detect, investigate, and respond to threats with unprecedented speed.

Today

Backed by €1.6M in pre-seed capital from leading investors, we’re building the predictive cybersecurity platform that organizations trust to protect their digital infrastructure. Our team spans security experts, engineers, and data scientists across Europe.

Our Investors

Backed by the Best. We raised €1.6M in pre-seed capital to build the future of infrastructure intelligence.

Our investors include Antler (global early-stage VC), Atlas SGR / Fondo Italiano, Volve Capital, D11Z, and Tioga Trust — each bringing strategic value in scaling cybersecurity ventures and connecting us to the global security ecosystem.

Advisory Board

Strategic Guidance From Industry Leaders. Guided by some of the brightest minds in cybersecurity and technology.

Maarten Botterman

Internet governance leader with 25+ years of experience. Served 9 years on the ICANN board, including 3 years as Chairman.

Geoff Huston

Chief Scientist at APNIC and internet pioneer. Leading expert in BGP routing, internet measurement, and protocol design.

Merike Kaeo

20+ year cybersecurity veteran, former Cisco security leader, and founder of Double Shot Security. Led Estonia’s cyberattack response.

Jeff Osborn

President of the Internet Systems Consortium, stewarding BIND and DHCP. Former UUNET pioneer and MakerBot executive.

Jonathan Cave

Economist with 30+ years at the RAND Corporation. Former Turing Fellow and expert in technology policy and digital economics.

Our Team

Meet the Whisper Team. Security experts, engineers, and data scientists making the internet safer.

Kaveh Ranjbar

Co-Founder & CEO

25-year internet infrastructure veteran, former RIPE NCC CIO and K-root DNS server architect. Leading Whisper’s vision to build the infrastructure intelligence layer for the internet.

Soroush Rafiee Rad

Co-Founder & CPSO

Mathematician with dual PhDs in mathematical logic and philosophy of science. Architect of Whisper’s knowledge graph and the intelligence models that power our platform.

Rahul Saggar

Commercial Lead & CRO

20+ years scaling cybersecurity firms including Check Point, AppSense, and Cybereason. Driving Whisper’s commercial growth and market strategy.

Roman Viliavin

Chief Operating Officer

Company builder and operator with deep experience scaling infrastructure and go-to-market systems across high-growth ventures.

Alireza Saleh

Head of Product & Growth

DNS and network engineering expert, veteran of NS1 and Bluecat Networks. Leading product strategy and user experience at Whisper.

Kaveh Azarhoosh

Community & Research Lead

Policy researcher focused on digital rights and internet governance. Building bridges between Whisper and the security research community.

Salia Ranjbar

Design & Brand Lead

Creative director driving visual narrative, brand identity, and user experience. Shaping how Whisper communicates trust and intelligence.

Strategic Partners

Building Together With Industry-Leading Partners. We collaborate with domain experts across strategy, legal, and growth to accelerate our mission.

Strategy

Joep Gommers

Legal

Bastiaan de Wit

Sophie Rosman

Growth Advisors

Tim Bloemhof

Joeri Achterberg

Let's Talk

Have a question? We'd love to hear from you to build a better internet together.

Want to join our team?

We're always looking for talented people who share our mission.