Mark D'Ambrosio

Centerfield Media Holdings LLC engages in the development of digital advertising technology. It offers omni-channel media, automated optimization, and end-to-end measurement services. The firm provides services to home security, education, cable, wireless and communication industries. The company was founded by Jason Cohen and Brett Cravatt in 2011 and is headquartered in Los Angeles, CA.

iPayment, Inc. provides credit and debit card-based payment processing services to small merchants. Its payment processing services enable merchants to accept credit cards as well as other forms of payment, including debit cards, checks, gift cards and loyalty programs in traditional card-present, or swipe transactions, as well as card-not-present transactions, such as conducted over the phone or through the internet. The firm markets and sells its services through independent sales groups and other third party resellers, as well as directly to merchants. The company was founded by Carl A. Grimstad and Robert S. Torino in 1992 and is headquartered in Westlake Village, CA.