Fourthline
Identity & KYC🇳🇱 Netherlands
Fourthline didn't start as a KYC company. It started as a payment institution. Krik Gunning and Chris van Straeten founded Safened in Amsterdam, licensed by the Dutch Central Bank as a regulated payment provider. As Safened onboarded its own customers, it built identity verification technology capable enough that other banks and fintechs started asking to use it directly. The demand was real and growing — digital financial services were expanding rapidly but compliance infrastructure hadn't kept pace. In 2019 Gunning and van Straeten spun the KYC operation out as a standalone company and renamed it Fourthline.
The name refers to compliance being the fourth line of defence in financial crime prevention — after business operations, risk management, and internal audit. It's a deliberately serious framing for a company that treats KYC not as a box to tick but as a technical problem worth solving properly. While many identity verification providers offer generic document checks, Fourthline built its platform around the regulatory requirements of Europe's strictest financial supervisors — the kind of compliance depth that a neobank launching in Germany or a broker entering the Netherlands actually needs to satisfy its regulator, not just its legal team.
The platform covers the full KYC and AML stack through a single API: document verification, biometric checks with liveness detection, AML and sanctions screening, risk scoring, proof of address, and ongoing customer monitoring throughout the customer lifecycle. The modular architecture means regulated institutions can pick the components they need rather than buying a fixed bundle — a practical advantage for fintechs that need identity verification at onboarding but different monitoring requirements at scale.
The client list is a reasonable proxy for the quality of the product. Fourthline verifies identities for N26, Qonto, Trade Republic, flatexDEGIRO, Scalapay, Shine, and Bitpanda — regulated financial businesses across Europe that operate under strict supervisory scrutiny and cannot afford onboarding failures. The company employs around 225 people and has raised approximately $70 million in funding, primarily from Finch Capital.
In March 2026 Fourthline appointed Paul Stoddart as CEO, replacing co-founder Krik Gunning who moved into an advisory role after leading the company since its founding. The timing coincides with a significant regulatory tailwind: the EU's new Anti-Money Laundering Regulation comes into force in July 2027, substantially raising compliance requirements for financial institutions across Europe and expanding the addressable market for precisely the kind of infrastructure Fourthline has spent six years building.
Founded 2017