98 percent of PATAMABA's members are women, while more than half of them are home-based workers.
[3] The union supports its members in developing their own enterprises, participating in local politics, pursuing training and accessing social services.
[4] The National Network of Home-based Workers (Pambansang Tagapag-ugnay ng Manggagawa sa Bahay) was first launched in 1991.
In 1992, PATAMABA succeeded in pressuring the Filipino government into affirming certain labour protections for home-based workers, including the registration of worker's organisations, the possibility of collective bargaining and the right to immediate payment.
During the 1990s, PATAMABA expanded from home-based work to other sectors of the informal economy.