About OCC

OCC – Innovating Construction, Delivering Excellence

Founded by Peter O’Connell, OCC Construction is a leading Irish main contractor built on a foundation of innovation, quality and knowledge. We deliver high-quality commercial, residential and med-tech projects, adopting a solution-driven approach that ensures safety, buildability and programme certainty.

Our projects are delivered in line with our vision — Building Ireland’s future through trusted, innovative and sustainable construction. We utilise Lean Construction principles, Modern Methods of Construction (MMC), BIM-led design coordination and digitally enabled project management to improve efficiency, quality and long-term value.

Our values guide everything we do. We invest in our people, place health and safety at the centre of our operations, insist on doing it right first time, and take full accountability for what we deliver. Sustainability is embedded across our business, ensuring responsible construction and positive long-term impact.

With over 15 years’ experience, OCC Construction has delivered a diverse portfolio of projects across multiple sectors. Driven by our mission — Innovating Construction, Delivering Excellence — we remain committed to leaving a lasting legacy in the communities we serve.

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Our People

At OCC, strong leadership, professionalism, and mutual respect drive everything we do. We work closely with clients to deliver tailored solutions that exceed expectations. Promoting collaboration and trust ensures every project’s success.

Our teams deliver exceptional results, maintaining the highest standards of quality. OCC’s ambition and innovation set new benchmarks in construction and infrastructure solutions nationwide.

Peter O’Connell

Managing Director

Shane McWalter

Operations Director

Robert Anderson

Commercial Director

John O’Connell

Senior Contracts Manager

Frank Deignan

Senior Contracts Manager

Aidan Weir

Senior Contracts Manager

Damien O’Brien

Senior Contracts Manager

John Gilmore

Contracts Manager

Jacqueline Ahearne

Financial Controller

David Fahy

Commercial Manager

Amanda Percy

HR Manager

Barry Donnellan

QHSE Manager

Louise O’Sullivan

People & Culture Manager

Our core values

Our Vision

Building Irelands Future through trusted, innovative and sustainable construction.

Our Mission

Innovating Construction, Delivering Excellence

Our Community

At OCC, we take pride in our strong ethos of giving back. We have built and maintained strong, meaningful relationships with local and national charities, as well as the communities we serve. We believe it is both a privilege and a responsibility to support those in need, reflecting our gratitude for the opportunities we’ve been given.

In 2024 alone, OCC Construction donated €28,000 to numerous charities and sponsored various sporting organizations, including all charities nominated by our employees.

Since OCC’s incorporation in 2010, approximately €241,000 has been donated to charitable causes. Each year, we invite our employees to share the charities that matter most to them, providing an opportunity to nominate a cause of their choice to share in a generous fund donated by OCC Construction.

Sustainability

OCC Construction’s Commitment to ESG
At OCC Construction, ESG principles shape how we operate. We work to reduce environmental impact, support our people and communities, and maintain transparent, responsible governance.

Environmental Responsibility
With ISO 14001 certification, we focus on sustainable construction—using energy-efficient methods, minimizing waste, prioritizing local materials, and delivering projects such as LEED and passive-house developments that align with global sustainability goals.

Social Responsibility
We create a safe, inclusive workplace and support employee well-being through healthcare benefits, an EAP, and development programs. We also give back through community involvement and charitable initiatives.

Governance Excellence
ISO 9001, ISO 14001, and ISO 45001 certifications guide our commitment to quality, ethics, safety, and accountability. Our sustainability goals align with global standards to deliver long-term value. OCC integrates ESG across all operations, driving innovation and positive impact for our clients, communities, and the planet.