National construction company ISIS Group Australia could be forced to change its name after 25 years because site workers have been abused as "terrorists".

The Australian company, which specialises in commercial office fit-outs and refurbishments, has reportedly been forced to scale back signage at work sites and encourage workers not to wear branded uniforms, News Corp reported.

Construction staff have been abused as terrorists by people walking past work sites, mistaking the company for the terrorist group in the Middle East.

ISIS chief executive Michael Barnes told News Corp he was upset that "ill-informed members of the public" were making the mistake.

"In recent weeks we have instructed our workers to stop wearing ISIS-branded clothing and are also in the process of scaling back on-site branding to limit attention from misinformed people and ensure the safety of our employees," Mr Barnes said.

"We are upset that what we stand for is becoming eroded by the Islamic State."