Fourthline
Fourthline sells AI-powered identity verification and fraud prevention software to European financial firms, with 216 employees and $75M in funding. Its Series B in 2023 was led by Finch Capital and Hedosophia.
The growth story
Fourthline grew from 220 to 216 employees between 2021 and 2026, raising $75M along the way, most recently a Series B in April 2023.
About
The company provides modular KYC and AML compliance tools for customer onboarding and lifecycle management. Clients include digital banks like N26 and Trade Republic that need to verify identities while minimizing drop-offs.
Fourthline has grown to serve major fintechs across Europe, though its headcount growth rate is unclear. The $75M Series B suggests strong investor confidence in its bank-grade compliance automation.
Founders and leadership
Engineering makes up nearly a quarter of staff with 50 employees. The Amsterdam HQ reflects its focus on European financial regulations.
The Fourthline org chart
Paul Stoddart (Chief Executive Officer) leads 56 mapped leaders with 4 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Finance 54 (-14% YoY), Engineering 45 (+2% YoY), Operations 19 (-17% YoY), Quality Assurance 16 (+14% YoY), Information Technology 15 (-12% YoY), Product Management 9 (+50% YoY).
Talent flow
Employees typically stay 2 years, with Deloitte and Safened as top talent sources. Many join payments firms like Adyen or banks like ABN AMRO afterward.
Most common previous employers of Fourthline staff: Deloitte (5), Safened (5), Accenture (4), TomTom (3), Backbase (3), Booking.com (3). Former Fourthline employees most often moved to Adyen (7), ABN AMRO Bank N.V. (4), ING (4), Mollie (3), ASML (3), adidas (3).
Alumni worth knowing
The Fourthline mafia
11 alumni founded companies, including Duna (44 staff) and WORQUE (15 staff), showing entrepreneurial spillover from compliance tech experience.
11Duco van Lanschot, was Chief Commercial Officer until 2022Pepijn Beijen, was Corporate (Tech) Recruiter a.i. until 2022Jos de Wit, was Partner Development Manager Fintech until 2023Giovane Dias, was Financial Fraud Analyst until 2022Natasha Villaroman, was Content Marketing Manager until 2019
Konstantinos Stavropoulos, was Senior Platform Engineer until 2022
Mohamed Amine F., was Senior Devops Engineer until 2021
Wouter Hamelink, was Business Strategist until 2023
Floris Ouwehand, was Business Development Representative until 2023
Mila Vegter-Boroshko, was Client Onboarding Manager until 2020Web traffic
Traffic mix: 71% direct, 18% search, 1% social, 1% paid.
What this company is made of
Most common skills at Fourthline: Microsoft Office (81), Teamwork (72), English (71), Project Management (69), Microsoft Excel (66), Communication (60), Customer Service (55), Analytical Skills (52).
Where the team actually sits
Fourthline people are concentrated in Catalonia, Spain (79), North Holland, Netherlands (62), Greater Barcelona Metropolitan Area (13), Netherlands (9).
Search footprint
Fourthline attracts about 3,493 organic search visits a month, traffic worth roughly $31K a month if bought through ads. It gained 969 ranking keywords and lost 876 in the last period.
What employees say
- Compensation
- 3.40 / 5
- Career opportunities
- 3.10 / 5
- Senior management
- 2.90 / 5
- Work-life balance
- 3.50 / 5
Frequently asked
Fourthline has 216 employees as of September 2026.
Fourthline has raised $75M in total, most recently a Series B round in April 2023.
Fourthline was founded in 2017 by Krik Gunning, Chris van Straeten.
Paul Stoddart (Chief Executive Officer) sits at the top of Fourthline's reporting structure, with 4 direct reports.
The most common previous employers of current Fourthline staff are Deloitte (5 people), Safened (5 people), Accenture (4 people).
Former Fourthline employees most often move to Adyen (7), ABN AMRO Bank N.V. (4), ING (4).
At least 11 companies have a founder who previously worked at Fourthline, including Duna, WORQUE, Hybion B.V..
Fourthline attracts about 3,493 organic search visits a month, worth roughly $31K a month in equivalent ad spend.
The most common skills among Fourthline staff are Microsoft Office, Teamwork, English, Project Management, Microsoft Excel.
Fourthline staff are concentrated in Catalonia, Spain (79), North Holland, Netherlands (62), Greater Barcelona Metropolitan Area (13).
Fourthline has about 54 people in Finance, down 14% over the past year, as of September 2026.
Fourthline has about 45 people in Engineering, up 2% over the past year, as of September 2026.
Computed from 187 current and 270 former Fourthline profiles, as of September 2026. Source: Crustdata.
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