Our Team

Cohen Jirgens


A Professional and motivated Director with over 20 years’ construction experience, Cohen has built the company from the ground up. Since reducing his time onsite 4 years ago, Cohen’s focus has been on directing the company’s projection of growth to service our fast-growing client base. He has continually reinvested in the company’s capabilities, resources and equipment to ensure that Jirgens civil stays ahead of the pack in all facets of civil construction. His philosophy is simple, “Set the Standard, Don’t Chase the Standard”. With this mindset at the fore front of all decision making, Cohen has taken the company from strength to strength, refining the strategies that ensures its success. Cohen engages directly with all sections of the business and has been fortunate enough to have a dedicated team of industry professionals join him.

As Managing Director of Jirgens Civil, Cohen has a hands-on approach with all projects and works collaboratively alongside his senior management team to execute projects beyond Client expectations.

Caroline Stevenson


Caroline is a director of the company and is a highly capable professional in her own right. Caroline holds multiple Diploma’s in Business management, Account management, Human Resources and Work, Health, and Safety. Caroline works closely with the Managing Director for critical company decision making and has been responsible for the commencement and growth of JLH Water and Sewer, a subsidiary of Jirgens Civil. Caroline has been at the coal face of the company’s WHS system for many years and has worked tirelessly to ensure our company is fully compliant with current WHS legislation. Additionally, Caroline is responsible for the continual training and career development of our staff.

Cecilia Paulo – MBA


Cecilia has been with Jirgens Civil since 2010 and has been a significant influence on the company’s development. Cecilia holds a Master of Business Administration, diploma in Business Accounting and Human Resources Management. Beyond the daily management of the office staff, Cecilia is the Accounts manager and a looks after claims, invoicing, cost control, purchasing, workflow schedules and payroll. Cecilia is responsible for the acquisition and financing of our expanding fleet of plant and equipment, trucks, service vehicles and survey equipment.
Cecilia facilitates the HR within the company and has assisted with the development of the Indigenous mentoring Program.

Vaughan Shearer – BEng


Vaughan holds a Bachelors in Engineering geology and geotechnics. He cut his teeth in the jungles of Papua New Guinea leading exploratory resource drilling explorations and is comfortable with managing adversity in fierce environments. Vaughan has strong leadership skills enabling him to lead effective teams, develop strong and lasting customer relationships and to ensure customer focus is his priority. Vaughan has the ability to adapt quickly to a changing environment and he was instrumental in our company’s response to the COVID-19 Pandemic. Vaughan has built strong repour with our project managers and site managers and they work efficiently and diligently to achieve the goal which he sets.

Tom Heasman – BEng


Tom has over 15 years’ experience. Having worked within consulting and contracting roles across a wide range of specialties concentrated on civil, environmental, and hazardous materials. Tom started his career in the UK working as a construction labourer. Proficient in the management of complex and varied civil, remediation, environmental, demolition and asbestos projects. Tom possesses the practical and technical knowledge to undertake all aspects of project delivery.

Craig Wenberg


Craige has over 20 years of hands-on, practical experience and provides comprehensive day to day management and problem-solving solutions to our major projects. Craige’s capabilities at a Supervisory level have allowed him to become leader for overseeing complex civil, marine and demolition works. Craige works closely with developing capable and experienced staff members. Amongst others, Craig holds a Cert 3 in Project management and Civil construction and an Exemption 38—Marine Safety qualification. His attention to detail, outstanding environmental, quality, and safety record sees him a leader among his peers.

Liam Dale


Liam has over 20 years of hands-on practical experience and provides comprehensive day to day management and problem-solving solutions to our projects. Liam’s capabilities at a Supervisory level have led him to become a fundamental part of the business, he provides extensive skill in the undertaking of concrete infrastructure works, Drainage and complex civil works. A recognised leader amongst his peers Liam possess a sound understanding of project supervision and management expectations.

Matthew Sadler


Matthew has over 35 years on the staff and behind the lens. His ability to identify problematic interfaces within projects is a considerable factor in our reputation. Matthew enables us to provide our clients with considerable cost savings through reduction in rework caused by poor design, coupled with the ability to pre-empt a problematic situation see’s significant reduction in down time and delay.

Kosgoda Weerasinghe – BEngC


Kosgoda holds a bachelor of Engineering in civil. ‘Kozzie’ is responsible for preliminary site investigation, quantity survey and the development of BOQ’s to assist with tendering. Kos is a standout performer within the estimating team and has a proven track record for successfully tendering medium sized projects. Kos provides assistance to project managers and site supervisors to overcome significant project obstacles and provides technical information as required to ensure compliance with specifications and standards.

A quick history of Jirgens Civil

Jirgens Civil is a family owned company that has been delivering Civil works, Road construction, Marine infrastructure, Sporting infrastructure, Drainage, Plumbing, Environmental, Demolition and Asbestos projects in the Shoalhaven and South Coast for the past 20 years.

Since our humble beginnings, our aim was to provide a range of professional civil contracting services throughout our region to a varied client base including State and local government, Dept of Defence, National Parks, commercial companies and the residential market. Thanks to the loyalty and continued support of our clients, suppliers, and subcontractors we have grown to be a leader within the Civil space throughout the Shoalhaven and South Coast regions. We have developed strong client relationships built upon collaboration and transparency which has helped set us apart for our competitors.
Driven by our strong company values, our focus is on exceeding customer expectations, leaving a positive legacy in the communities we serve, protecting our environment for the future generations, and promoting a safe an inclusive workplace for our colleagues.

We are a resourceful, dynamic and capable company which brings outcome driven energy and focus to our projects working as a team with our clients to achieve shared goals. With an embedded understanding and practical application of project process, our dedicated team of offer a wealth of knowledge in design, engineering, resolution and project management and delivery.

Our Equipment

Our professional operators and regularly maintained equipment makes light work of any task. Ask us about Equipment Hire options for hourly, daily or weekly rates.

  • Excavators (1.6 to 22 tonne)
  • Bobcats
  • Rollers
  • Water Carts
  • Graders
  • Tipper trucks
  • Plant trailers
  • Backhoes

Our Clients


Our services: civil maintenance and asbestos removal


Our services: civil maintenance and asbestos removal

Shoalhaven City Council

Our services: asbestos removal

Stowe Australia

Our services: pit and conduit installation

Manildra Group

Our services: roads and pavement construction and maintenance

National Parks and Wildlife Services

Our services: roads and carparks construction, drainage maintenance


Our services: asbestos removal

MI Engineers

Our services: civil construction

ESG – Engineering Survey Group

Our services: civil construction

CPB Contractors (formerly Leightons)

Our services: Civil maintenance and construction


Our services: Road Repairs, Concrete Repairs, Linemarking, Traffic control & signage.

Our Community – our support of charity groups

Jirgens Civil supports community and charity initiatives that reflect our own vision: to help look after the planet and people on it, starting with our own neighbourhood, to be a better, healthier, more beautiful place for our children and generations to come.

Carbon Positive Australia

An Australian charity that has been restoring degraded lands through ecologically sensitive planting for the last 20 years.  We encourage everyone to make climate-healthy choices that go beyond being ‘carbon neutral’.

Learn More about Carbon Positive Australia

Safe Shelter - Homeless Nowra

A volunteer organisation dedicated to providing safe, emergency, overnight shelter for homeless people in our community. We donate funds and participate in their many projects.

Learn More about Safe Shelter

Smith Family

A volunteer organisation dedicated to the helping disadvantaged Australian children to get the most out of their education We donate funds and participate in their many projects.

Learn More about SMITH FAMILY


A volunteer organisation dedicated to the health and sustainability of the Shoalhaven River. We donate funds and participate in their many projects.

Learn More about Riverwatch

Relay for Life

An initiative of Cancer Council NSW, we sponsor relay teams in this annual event with Shoalhaven Nowra chapter. Since 2012, Relay for Life has raised over $108 million for Cancer Council.

Learn More about Relay for Life

Make a Wish Foundation

We regularly donate to Make-a-Wish Australia who have granted over 8,000 wishes to children with life-threatening illnesses since 1985.

Learn More about Make A Wish Foundation

Kids with Cancer Foundation

We regularly donate to Make-a-Wish Australia who have granted over 8,000 wishes to children with life-threatening illnesses since 1985.

Learn More about Kids with Cancer Foundation

Jirgens Civil is a diversified civil and marine construction company operating since 2005 in Nowra, Wollongong and Ulladulla.

Specialising in Civil, Marine, Environmental & Earthmoving Construction. We have the capability, experience and expertise to undertake projects in marine construction, civil construction, roads and pavements, line marking, drainage systems, environmental management, facilities maintenance and landscaping.