David GuerinView David Guerin's profile on LinkedIn
Chief Executive Officer


As CEO of Payment Principals LLC (PayPrin), David is highly focused on the development and delivery of advanced payment processing solutions to card-not-present (CNP) merchants.

Before starting PayPrin, David held senior management positions with BSG Clearing Solutions (LSE: BILL) and Retail Decisions plc. As SVP of Operations for BSG Clearing Solutions, David lead the successful launch of BSG Payments LLC, a credit card subsidiary to include a proprietary payment gateway, a custom risk management platform and three concurrent ISO registrations. While at Retail Decisions, David was responsible for the company's settlement and fraud prevention services including neural models deployed to financial institutions throughout North & South America, South Africa, Japan and Korea. Prior to Retail Decisions, David's career highlights include developing fraud mitigation strategies for premier CyberSource merchants, co-founding Centurion Systems, Inc., a payment solutions company, and a lengthy tenure as Director of Operations at Shared Global Systems, Inc., a First Data Corporation (TeleCheck) subsidiary that pioneered credit card fraud prevention techniques.

With more than 20 years' experience providing payment processing and risk management services to the largest Telecommunications and Internet Retailers, David Guerin's unique background and expertise is widely recognized in the CNP industry.

Gayle KlymView Gayle Klym's profile on LinkedIn
Chief Risk Officer


As Chief Risk Officer for Payment Principals LLC (PayPrin), Gayle has unusually broad responsibility for the company's technology platforms, compliance programs and merchant portfolios.

Before co-founding Payment Principals, Gayle held senior Fraud Analytics and Product Management positions with industry leading service providers including Microsoft, BSG Clearing Solutions, Retail Decisions plc. and First Data Corporation, but it was Gayle's leadership as the Fraud and Risk Operations Manager for Citadel Commerce, a Vancouver-based e-commerce solutions provider focused on online gambling merchants, where she built an extraordinary industry reputation for developing the company's anti-fraud tools and managing the Risk Operations Team, from Citadel's inception. Prior to her forays in e-commerce, Gayle was also the Director of Consulting & Research at a commercial real estate firm where she directed research focused on strategic decision making for corporate real estate investments.

Gayle leverages an incomparable background in the Financial Services industry, including 14+ years in e-commerce, to monitor a complex CNP acquiring portfolio and deliver exceptional risk management services to PayPrin clients.

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PayPrin News

  • More Shopping Carts +

    FOR IMMEDIATE RELEASE: Extended Shopping Cart Options New York, NY (01 February 2012) – With the addition of a fourth gateway platform, Payment Principals LLC (PayPrin) announces that it now supports more than thirty different shopping cart options for card-not-present merchants Read More
  • Extended ACH Services +

    FOR IMMEDIATE RELEASE: Extended ACH Processing Options New York, NY (28 July 2011) – Payment Principals LLC (PayPrin) has extended their ACH (Automated Clearing House) processing services in the U.S. In addition to adding a new ODFI (Originating Depository Financial Institution), Read More
  • Launch of Axis Gateway +

    FOR IMMEDIATE RELEASE: Launch of New Axis Gateway New York, NY (20 January 2012) – Payment Principals LLC (PayPrin) is pleased to announce that it has recently launched its newest gateway platform - the Axis Gateway. Read More
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