Independent branch trade unions or professional trade union organisations, which are registered according to the procedure stipulated by the law and which recognise LBAS statutes, programme, pay the membership dues as stipulated by the Statutes and whose Statutes do not contradict LBAS Statutes can become affiliates of LBAS.

Free Trade Union Confederation of Latvia (LBAS) unites 21 different branch trade unions or professional trade union organisations.

• Federation of Trade Unions of Civil Aviation
• Nursing and Health Care Personnel Trade Union
• Trade Union of Construction Workers
• Road Workers Trade Union
• Railway Workers Trade Union
• Trade Union Energija
• Industrial Workers Trade Union
• Education and Science Workers Trade Union
• Trade Union Federation for People Engaged in Cultural Activities
• Trade Union of Agriculture and Food Industry Workers
• Metal Workers Trade Union
• Forest Sphere Workers Trade Union
• Trade Union of Local Governments
• Trade Union of Public Service Employees LAKRS
• Communication Workers Trade Union
• Trade Union of Commerce
• Seafarers Union of Merchant Fleet
• Water Transport Trade Union Federation
• Trade Union of Employees of State Institutions, Self-governments and Finance Sector
• Unite Trade Union of Policemen
• Health and Social Care Workers Trade Union