About Mann Group

The contributing factors that have directed this Australian owned family company to financial and business success are:

  • It is an Australian family owned and operated business which is driven both professionally and emotionally by its directors, and
  • Has wisely invested into the Sydney property market to provide a stable platform in times of economic hardship
  • An extremely low staff turnover that has delivered continual and reliable service to our clients together with a tranquil working environment
  • The retention of valuable staff that embraces the knowledge trust that is Mann Group – the most valuable asset


Because Mann Group cares for its staff, we have a low staff turnover, which further ensures the success of the company as we realise our employees are an essential and valuable asset.

We will continue to implement procedures and operations in the future to meet with the increasing legal and quality demands of the market place. ‘Raising the bar’ will ensure competitiveness and , always ensuring that we are superior to our competitors, which will further develop the company and result in continuing success of the company.

The late Anthony Manassa

Anthony Manassa migrated to Australia in 1944 and establish his empire in the construction industry in 1949 performing demolition and excavation work in Sydney during the industries teething stages. He continued successfully delivering large scale residential projects throughout the 60's, 70's and 80's whilst developing his demolition contracting business. Since his passing in 1998 Anthony Manassa passed on his legacy to his two sons James and Leny who are currently driving the business and will continue to do so into the 22nd Century.

James Manassa

James Manassa manages the company with a 18 year work history delivering unrestricted structural demolition projects. James has physically delivered major building and infrastructure projects throughout New South Wales. A proud Australian with a vast amount of experience and expertise both on site and with the business development for the company.

Leny Manassa

Leny Manassa is a qualified builder with a vast history of construction and demolition expertise. Leny Project Manages all operations for Mann Group and delivers efficient and safe working methodology for all Mann Group projects. Leny co-ordinates qualified Mann Group supervisors and allocates all resources to ensure safe and cost effective delivery.

Vincent Di Falco

Vincent Di Falco is a qualified Civil Engineer and was educated in Sydney and has worked along the Australian Eastern seaboard for the past 16 years in the capacity of Project Manager and works Superintendent. Vincent has worked on major Civil, Demolition and Environmental remediation projects. Vincent procures projects for Mann Group in the estimating department.

Stephen Tran

Stephen Tran is a qualified Civil engineer who has worked in the major Demolition / Civil / Hazardous Material Management industry for the past 10 years in the capacity of estimator and project manager. He has dealt with many major clients (Builders, Construction Managers, Developers, Projects Managers and Governments across NSW and ACT).