Jonathan Hartshorn

Pfizer Manufacturing Ireland manufactures and exports pharmaceutical products. It offers formulation and manufacture of human pharmaceuticals and animal health care products. Its Dublin plant manufactures sterile pharmaceutical products. The company was founded in 1969 and is headquartered in Dublin, Ireland.

Venn Life Sciences Holdings Plc is a clinical research organization, which provides a suite of consulting and clinical trial services to pharmaceutical, biotechnology, and medical device organizations. Its services include drug development planning and strategy, early drug development, clinical monitoring, medical monitoring, investigator initiated studies, clinical feasibility assessment, regulatory affairs and consulting, quality assurance, and drug development training and courses. The company was founded on February 2, 2011 and is headquartered in Dublin, Ireland.

Mainstream Renewable Power Ltd. develops, finances, constructs, and operates renewable energy plants for global consumer brands like IKEA, utilities, and investment companies. It develops onshore and offshore wind and solar projects. The company was founded by Eddie O'Connor and Fintan Whelan in February 2008 and is headquartered in Dublin, Ireland.

Cara Healthcare Ltd. is a private company headquartered in Dublin, Ireland. The firm provides residential care services. It was founded by Jonathan Hartshorn.