Sinttel-ES, the Sindicato dos Trabalhadores em Telecomunicações do Espírito Santo, is a pivotal organization committed to representing the interests of telecommunications workers in the region. The union provides a range of services, including legal support, collective bargaining negotiations, and online voting systems for member participation. Sinttel-ES actively engages in various initiatives, such as collective agreements for fair salaries and improved working conditions, ensuring that workers' voices are heard in important negotiations with major telecommunications providers like Oi and Vivo.

Members benefit from a robust support structure that includes access to legal advice, regular updates on industry news, and opportunities to participate in assemblies and campaigns. Additionally, Sinttel-ES fosters community through its social media presence, encouraging members to stay informed and connected. Located in Vitória, the union plays a crucial role in advocating for worker rights and standing in solidarity with its members, focusing on improving the labor landscape for the telecommunications workforce in Espírito Santo.