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Ravelin Technology

Techstars '15

London, GB · Founded 2014 · 168 employees on LinkedIn · 4 known investors

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Ravelin provides an AI-based fraud and abuse prevention platform for online merchants, using machine learning, consortium data, and graph-network analysis to automate risk decisions across the customer journey. Its offerings address refund abuse, account takeover, promo abuse, marketplace and partner fraud, 3D Secure authentication, and transaction optimization.

AI & Machine LearningCybersecurityFintech

Founders & leadership

Ravelin Technology was founded in 2014 by Nick Lally and Martin Sweeney.

NLNick Lally
Nick LallyFounder & CFONick Lally is founder and former CFO of Ravelin Technology, an AI-based fraud prevention platform for online merchants that was acquired by Worldpay in February 2025. He has held roles in strategic finance and operations across corporate and venture-backed technology companies.
MSMartin Sweeney
Martin SweeneyCo-founder · CEO

Investors · 4

Passion Capitallisted by Passion CapitalLondon

How we know: Passion Capital's portfolio page · a partner's Signal profile · the Companies House PSC register · Not right? Tell us

Techstarslisted by TechstarsBoulder · $220K

How we know: the Techstars portfolio · Not right? Tell us

Playfair CapitalreportedLondon · $130K – $1.9M

How we know: the VCSheet dataset · Not right? Tell us

Founder mafia

2 people who came through Ravelin Technology went on to found or lead other companies.

Federico Pirzio-BiroliAngel InvestorFounded PlayfairLong HoangSoftware Engineer InternFounded Martini

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ChargebackgurusChargeback Gurus provides a platform combining automation, AI, and dispute-management expertise to help merchants prevent chargebacks and recover lost revenue. It offers prevention alerts, dispute representment, and analytics to reduce payment disputes.
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RiskifiedRiskified provides AI and machine-learning fraud prevention that protects the ecommerce customer journey from login and checkout to refunds and returns. It serves online merchants and their fraud teams, aiming to reduce the cost of fraud and abuse while increasing sales approval rates.
SiftSift provides an AI-powered platform for fraud prevention and risk decisioning that helps digital businesses detect and manage online fraud. The platform serves companies across industries looking to reduce fraud losses while enabling secure growth.
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Companies working in the same space as Ravelin Technology.

Companies House · registry record

View on Companies House ↗
Registered name
RAVELIN TECHNOLOGY LTD
Company number
09273460
Status
Active
Company type
Private limited company
Incorporated
21 Oct 2014
Registered office
Bentima House, 168-172 Old Street, London, EC1V 9BP
Nature of business (SIC)
63110 — Data processing, hosting and related activities
Accounts
last made up to 31 Dec 2024 · next due 30 Sept 2026
Confirmation statement
last made up to 24 Aug 2025 · next due 7 Sept 2026

Current officers · 4

  • Gabriel De Montessus — director, appointed 21 Feb 2025
  • Krunal Patel — director, appointed 21 Feb 2025
  • Martin Hugh Sweeney — director, appointed 21 Oct 2014
  • John Winstel — director, appointed 21 Feb 2025

Source: Companies House public register · retrieved 3 Aug 2026. Contains public sector information licensed under the Open Government Licence v3.0.

Frequently asked questions

What does Ravelin Technology do?
Ravelin provides an AI-based fraud and abuse prevention platform for online merchants, using machine learning, consortium data, and graph-network analysis to automate risk decisions across the customer journey. Its offerings address refund abuse, account takeover, promo abuse, marketplace and partner fraud, 3D Secure authentication, and transaction optimization.
Who founded Ravelin Technology?
Ravelin Technology was founded by Nick Lally, Martin Sweeney in 2014.
Who are Ravelin Technology's investors?
Ravelin Technology's investors include Air Street Capital, Passion Capital, Techstars, Playfair Capital.
Where is Ravelin Technology headquartered?
Ravelin Technology is headquartered in London, GB.