John Brennan Managing Director John is a Chartered Engineer and the Managing Director of ORS, leading the company with a people-first approach. John’s focus is on building a dynamic, high-performing team with a culture of collaboration, innovation and growth. He is committed to ensuring the well-being of all ORS employees, promoting an award-winning hybrid working
David McCormack Director David McCormack is a Chartered Engineer and Director at ORS, recognised for his trusted leadership and deep industry experience. He leads ORS’s engineering services across the development and construction sectors, bringing extensive knowledge and strategic insight to every project. In addition to his core engineering background, David holds professional qualifications in Project
Brian Collentine Director Brian Collentine is a Director and Chartered Engineer at ORS, bringing over two decades of consultancy experience across the public and private sectors. Brian has played a pivotal role in shaping the firm’s strategic direction and delivering high-impact solutions for clients and stakeholders. He directs the M&E and Sustainbility as well as
Gerard Fagan Director Gerard Fagan is a highly experienced Chartered Engineer and Director at ORS, with a deep understanding of Irish building regulations and European certification and building compliance standards. As the Director of our assigned certifier team, Gerard ensures that our projects comply with relevant building regulations and certification requirements. Gerard is known for
Darren Holmes Director Darren Holmes is a Chartered Engineer and Director at ORS with nearly 20 years of industry experience. With a strong background in technical consultancy, project management, and leadership, Darren plays a key role in supporting ORS’s continued growth and innovation across Ireland’s built environment. He oversees teams responsible for delivering complex projects,
Tom Gilligan Financial Director Tom is a fellow Chartered Accountant and the Financial Director at ORS. He comes from an accountancy practice background and has experience across various industries, including construction, retail and financial services. As Financial Director, Tom plays a crucial role in the company’s strategic growth. He advises the senior leadership team on
Cormac Geoghegan Director Cormac Geoghegan is a Chartered Structural Engineer and accomplished project manager with over 15 years of experience leading large, multidisciplinary teams in the construction and utilities sectors. Since joining ORS in 2019 as a Senior Project Manager, Cormac has brought a wealth of leadership and commercial experience from his previous senior roles
Luke Martin Director With over 13 years of experience in the environmental consultancy sector, Luke Martin is a Chartered Environmentalist and Director of Environmental Services at ORS, where he leads a dynamic, high-performing team of 25 environmental professionals. Since joining ORS, Luke has been instrumental in building and scaling the Environmental Services pillar, growing it
Rachel Murray Director Rachel is a strategic leader passionate about building thriving workplaces where people feel valued, engaged, and empowered to succeed. As Director of People & Brand at ORS, she plays a key role in shaping both the internal culture and external reputation of the company. Since joining ORS in 2020 during the COVID-19