Jakarta – Most of the labor supply companies operating in Jakarta, Bogor, Tangerang and Bekasi (Jabotabek) are illegal, an association says.

The Association of Labor Supply Companies (APJTKSI) said Tuesday that of 400 labor supply firms, only 147 were listed with the Manpower and Transmigration Ministry. Labor supply companies usually match skilled workers with jobs in big companies.

"They don't usually register their workers in the social security program (Jamsostek)," the association's secretary-general Parsaulian said Tuesday. The association, which was set up last year with 57 members, will submit its findings to the ministry.

Labor supply companies are regulated under a 2005 ministerial decree and the 2003 Labor Law.