GJK manages services on behalf of our clients who have facilities ranging in size from 50 m2 to in excess of 500,000 m2. We have contracts that are geographically dispersed nationally or throughout a State/Territory.


Commercial Sector Experience

GJK is extensive experience in providing services to the commercial sector. Our breadth of industry knowledge ensures a service solution that is tailored to an ‘A’ grade standard.

All solutions are developed based on client requirements and existing industry benchmarks thus ensuring GJK’s successful delivery. Key clients include:

  • Qantas
  • NAB/Westpac
  • Department of Treasury and Finance
  • Siemens
  • Nike
  • Exxon Mobil

Government Sector Experience

GJK has an exceptionally strong track record of successfully delivering services to public sector clients at State and Local Government level.

Accordingly, we are thoroughly conversant with working with government, including understanding its corporate culture and values, its reporting requirements and its different operational environment in respect to probity and transparency.

  • Department of Human Services
  • Department of Treasury & Finance
  • Department of Early Learning & Childhood Development
  • City of Port Phillip
  • City of Belmont, WA

Education Sector Experience

GJK is a recognized leader in the education sector with experience in major universities, public and private school facilities, higher learning and other specialised educational facilities. Key clients include:

  • The University of Melbourne
  • La Trobe University
  • NMIT
  • University of Western Sydney

Retail Sector Experience

GJK maintains the necessary skill level, resources and relevant security clearances to meet the demands of the retail environment. With a thorough understanding of quality and safety requirements within the retail sector, GJK ensures all premises are maintained to a pristine standard catering for the high traffic levels expected in retail environments. Key clients include:

  • QV
  • Qantas
  • UGL Banking Portfolio
  • Nike

Manufacturing Sector Experience

GJK provides cleaning services to a variety of manufacturing and industrial clients, each with its own specific requirements.

We understand the sectors unique requirements and our technical knowledge ensures that service standards are achieved and maintained. The sector’s stringent OH&S requirements are a key area of consideration in the development of a service methodology. Key clients include:

  • CSR/Viridian
  • Exxon Mobil Refineries
  • BASF
  • Qantas Engineering Facilities

Health Sector Experience

GJK has a broad knowledge and experience in providing services to the health sector and are conversant with the specific requirements of the health sector. We have detailed processes and auditing tools in place to ensure that risks are mitigated. Over the years we have gained extensive know how and understanding into the values, policies and day to day working requirements of the various health sector facilities we have provided services to. Key clients include:

  • Australian Red Cross Blood Service
  • Victorian Organ Donation Service