Ireland's Strongest Union

SIPTU is Ireland’s strongest trade union, representing over 180,000 workers across the public and private sectors in every community and county. 

From Derry to Dublin and Cork to Wexford in health and education, manufacturing, transport, and services, we have the backs of all workers whether full-time, part-time, permanent, contract, casual, or shift-based, as well as retired and unemployed members.

We are proud to reflect the diversity of Ireland’s modern workforce, uniting workers from every corner of the world.

Our core mission is simple: to win fairness at work and justice in society.

We achieve this through the power of ‘One Big Union’.

This philosophy is built on a simple, timeless truth, unity is strength.

Regardless of your trade, grade, sector, or background, workers are always strongest when we stand together. By breaking down divisions between different types of employment, the One Big Union model brought to this island by Big Jim Larkin brings us under a single, powerful banner to build real influence in the workplace and across the Irish economy.

While our size gives us significant weight with employers and government bodies, our true strength comes directly from the active involvement of our ordinary members. SIPTU is a proud, member-led union.

Through democratic conferences and local shop steward networks, power is placed directly where it belongs, in your hands.

As a SIPTU member, you have the opportunity to shape Union policy, elect your representatives, your leadership and vote in democratic ballots.

With these rights comes the shared responsibility to respect majority decisions once a vote is taken.

Standing shoulder-to-shoulder under the banner of One Big Union, SIPTU members turn collective action into real results securing better pay, safer working conditions, and dignity for every worker.