About us
Founded in 2012 and headquartered in Gympie, Offaly Civil Engineering has grown from a specialised utilities contractor into a multi-disciplined civil contractor servicing Southeast Queensland and the Wide Bay.
Our foundation was built on mastering technically challenging scopes, specifically complex water and sewer infrastructure, in some of Australia's most difficult ground conditions. Today, we apply that same precision to landfill construction, road infrastructure, and bulk earthworks for local government, mining, and Tier 1 clients.
Offaly Civil is led by Directors Garreth Higgins and Ryan Thiselton, who provide active leadership across all projects. Their involvement ensures a consistent focus on quality, delivery and strong client relationships, with a collaborative approach to delivering successful project outcomes.
Co-Founder & Managing Director
Garreth brings over 20 years of experience in civil engineering, infrastructure delivery and project management. He has led major projects across Australia and is committed to delivering high-quality, sustainable outcomes for clients. His career is built on technical expertise, strong leadership and long-term relationships, with a reputation for reliability, problem-solving and attention to detail.
Co-Founder & Operations Manager
Ryan oversees delivery and operations with a focus on practical solutions and on-site excellence. With extensive hands-on and supervisory experience, he ensures every project runs efficiently, safely and to the highest standards. Across his career, he has led major infrastructure works nationwide, earning a reputation for leadership and delivering complex projects under pressure.
Our in-house capability enables greater control over quality, programme and delivery, supporting consistent and reliable outcomes across every project.
Our operations are underpinned by an ISO-certified Integrated Management System (ISOQAR), ensuring we meet standard benchmarks for quality, safety, and environmental stewardship:
ISO 9001:2015
Quality
Third-party certified · ISOQAR
ISO 45001:2018
Occupational Health & Safety
Third-party certified · ISOQAR
ISO 14001:2015
Environmental
Third-party certified · ISOQAR
Infrastructure is about more than concrete and soil; it's about supporting the growth of the communities we live and work in.
We are active in regional sponsorships and charitable works across the Wide Bay and SEQ regions.
We prioritise local supply chains and Indigenous participation, contributing to sustainable outcomes for the communities in which we operate.
We take a proactive approach to environmental management, embedding responsible construction practices and efficient material use across all projects.
