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Trade Unions in 🇬🇧 United Kingdom

Aggregated from the UK Certification Officer (AR21 annual returns and related publications), TUC materials, and ONS trade union statistics.

RMT

National Union of Rail, Maritime and Transport Workers

RMT Union

A major UK transport union representing workers across rail, maritime, and other transport services.

High Left-leaning / Politically independent Rail Maritime +2 more
👥 ~78.9K members
🏭 4 sectors

ASLEF

Associated Society of Locomotive Engineers and Firemen

ASLEF - The Train Drivers' Union

A specialist union representing train drivers in Great Britain, including some metro and light rail systems.

High Labour Party affiliated Rail Transport (Drivers) Freight Rail +1 more
👥 ~25.2K members
🏭 3 sectors

Unite

Unite the Union

Unite

A large general union with substantial membership across transport, logistics, manufacturing, and public services.

Critical Labour Party affiliated Aviation Logistics +3 more
👥 ~1.2M members
🏭 5 sectors

PCS

Public and Commercial Services Union

PCS Union

A large union representing UK civil servants and staff in government departments and agencies.

High Left-leaning / Politically independent Civil Service Border Operations +1 more
👥 ~189.4K members
🏭 3 sectors

TSSA

Transport Salaried Staffs' Association

TSSA

A union representing salaried and staff-grade workers in transport, particularly in rail-related roles.

Medium Labour Party affiliated Rail (Staff/Management) Transport (Salaried/Staff Roles)
👥 ~17.2K members
🏭 2 sectors