Who we are.

Hunter joined ACT in 2003 as SVP of Sales and Operations, and played a primary role in propelling the business from 300 employees, to more than 12,000 employees. He was instrumental in transforming the company from a PE-funded entity to 100% employee owned as a strategic decision to differentiate on employee experience and create even greater value for ACT’s clients. Prior to joining ACT, Hunter led operations for Penncro Associates, leading growth from 100 to more than 2,000 employees through organic expansion and new client acquisition. Before that, he held various leadership roles in financial services and lending firms, driving operational transformation and excellence for his clients. He is passionate about creating outstanding customer experiences by employing a “total experience” approach to service delivery.

Susan Parker is Chief Operating Officer for ACT, where she drives performance across the organization to exceed client goals. She is responsible for developing and maintaining the company’s operational support structure and service delivery capabilities across ACT’s 20+ sites, domestically and internationally. Susan brings more than 25 years’ experience in various operational leadership roles. She is renowned among clients and colleagues alike for her determination and unwavering drive for excellence.

Zabrina Doerck leads marketing strategy for ACT, with more than 20 years’ experience in high-growth B2B companies. She brings unique vertical insights from past roles with special expertise in telecoms, SaaS, financial services, healthcare, public sector, manufacturing and retail. Prior to joining ACT, she led marketing strategy at Federated Wireless, a DC-based tech startup. She has also held roles leading product marketing and brand transformation for outsourced IT solutions at Infovista, Comcast Business, and QTS Data Centers. She began her career driving demand generation and digital strategy for healthcare SaaS pioneer ResMed. Zabrina is an evangelist for best-in-class enterprise solutions that drive client profitability and deliver outstanding customer engagement.

Jimmy co-founded ACT in 2003 and has served as Chief Financial Officer since its founding. Jimmy has over 30 years of experience in finance and accounting, financial advisory, M&A, and operations. He has served as Managing Partner of Julip Run Capital since 2009, as well as its predecessor company, CD Ventures. During his tenure, he co-founded seven platform companies and co-led the successful acquisition of more than 55 businesses, while leading diligence for 60+ other companies. He participated in raising over $900 million of capital while at CD Ventures. Previously Jimmy has held the role of CFO and interim CEO at MessageLink, LLC; he served as Director of Acquisitions and Integration for HomeCare and Hospital Management, Inc. a $200 million homecare company; and he was a Senior Accountant in the audit department at Price Waterhouse, LLP, specializing in emerging growth companies. Jimmy has a B.A. in Business Administration from Rhodes College and has passed all parts of the uniform CPA examination in the State of Tennessee.

Marc Keller is the Chief Compliance Officer and joined ACT in January of 2011. Since joining ACT, Mr. Keller has overseen the ACT Corporate Compliance Department, functioning as an independent and objective body that reviews and evaluates compliance issues and concerns and ensures adherence to internal, client and regulatory requirements. Mr. Keller came to ACT with a diverse professional history. In 1989, he obtained licenses to practice law in Pennsylvania and New Jersey and continued to do so through 1998 at which time he began his contact center career with Telerx Marketing, Inc., a wholly owned subsidiary of Merck & Co, with call centers throughout the United States and Canada. In 2003, Mr. Keller served as Director of Client Services for Telerx with responsibilities for multiple inbound/outbound pharmaceutical, consumer affairs and not-for-profit programs. In 2007, because of his legal background and varied contact center experiences, Mr. Keller transitioned into the role of Director of Corporate Compliance and was instrumental in establishing the Telerx Corporate Compliance Department. Mr. Keller earned a B.A. in Political Science at SUNY Stonybrook and a Juris Doctor from Widener University School of Law.