Hadrian

Who uses Hadrian and what it's for

Hadrian is built for security teams at large companies that own more internet-facing systems than they can track by hand. It says more than 300 enterprises use the platform, and its Series B release lists McKesson, NBCUniversal, Francisco Partners, TotalEnergies, Amadeus, Leroy Merlin, and Damen Shipyards as customers.¹² Its best uses are finding assets a company did not know it exposed, checking which exposures an attacker could exploit, and running penetration tests between the yearly manual engagements many companies still book.²

Hans Quivooij, the CISO of Damen Shipyards, describes the change in the funding release: Instead of relying on periodic assessments and a known inventory, we now have continuous visibility into what an attacker can actually see and potentially exploit.² Alessio Setaro of Leroy Merlin says the platform helps his team find exposed assets and test them the way an attacker would.²

On price, Hadrian publishes a starting price for its pentests, which few AI pentest vendors do, and quotes its exposure management product. Its main competitors are the autonomous testing vendors Horizon3.ai and XBOW, the pentest-as-a-service firm Cobalt, and attack surface tools such as Detectify.

Atlas and Nova on One Platform

Hadrian sells two products that share data. Atlas maps a company's external attack surface and uses AI agents to validate which exposures can be exploited, and its pricing page says every change to the attack surface triggers new tests.²³ Nova runs agentic penetration tests on demand, with reports that map results to SOC 2, ISO 27001, and NIS2, and it shows the reasoning, tests performed, and evidence the AI collected.³ Because the two share context, a team can move from a finding in Atlas to a deeper test in Nova without starting over.²

Hadrian argues that most scanner output is noise. Its funding release says only 0.47% of vulnerability scanner findings proved exploitable, and it reports that customers have seen 10 times more visibility into critical exposures, 80% faster time to resolution, and five times the return of manual pentesting.² Those are company-reported results.

A Published Starting Price for Pentests

Nova pentests start at €1,250 per test excluding VAT, about $1,394 at the European Central Bank rate for October 27, 2026, and Hadrian offers bundles.³⁴ Atlas has no published price, and add-ons for merger and acquisition assessments and infostealer credential leak detection are also quoted.³ A buyer can therefore budget a single test but needs a sales call for continuous coverage.

Three Founders and a $40 Million Series B

Rogier Fischer and Olivier Beg met on an online forum in 2009, when both were 13, and within a few years were working as white-hat hackers for Dutch banks and global tech companies.¹ Fischer later co-founded and exited LiteBit, a regulated cryptocurrency exchange, and Beg led research at the disclosure firm Zerocopter, where he was the first employee.⁵ They founded Hadrian in Amsterdam in 2021 with Maurice Clin, an investor and operator who runs business development.¹⁵

On October 6, 2026, Hadrian announced a $40 million Series B co-led by Forgepoint Capital International and SmartFin, with HV Capital, Motive Partners, Picus Capital, and Oetker Ventures, bringing total funding to $65 million.²⁶ Forgepoint says the team has grown to more than 80 people across Amsterdam and offices in the US and UK.⁵ GigaOm has rated Hadrian a Leader three years in a row, and Gartner lists it as a representative vendor in its 2026 Market Guide for Adversarial Exposure Validation.¹

How it compares with Horizon3.ai and XBOW

Horizon3.ai runs autonomous pentests of internal and external networks with its NodeZero platform, and XBOW focuses on AI agents that test web applications. Hadrian starts from the outside: it discovers what a company exposes on the internet, tests it continuously, and adds on-demand pentests. A buyer whose main worry is unknown internet-facing assets has more reason to look at Hadrian, while one that wants deep internal network testing will compare it with Horizon3.ai.

Cobalt sells human-led pentests booked through a platform. Hadrian's Nova replaces much of that work with AI agents and publishes a per-test starting price.

Where Hadrian falls short

Continuous coverage through Atlas has no public price, so the cost of the product most customers buy first is unknown until a sales call.³ The euro pricing also means a US buyer's cost moves with the exchange rate.

Hadrian's results figures come from its own customers and press materials, and the company has fewer public customer reviews than older pentest vendors. Its team of about 80 people is small next to the incumbents it competes against.⁵