The agreement guarantees wage increases and improved benefits for approximately 150 staffers.
The workers launched their union drive after the Manhattan institution eliminated their pension plans.
Like the National Labor Union in 1866, the Walters Art Museum union lit a fuse that ignited a labor movement boom across Baltimore’s cultural institutions.
Earlier this year, the union held a one-day strike over “lowball” wages and prolonged negotiations.
The 500-acre museum and sculpture garden is refusing to voluntarily recognize the union.
The PMA Union authorized a one-day strike on September 16, days after it filed an Unfair Labor Practices complaint against the institution.
The announcement comes less than two months after a group of museum employees declared their intention to unionize.
The union’s third rally since April brought together national and local labor leaders to demand that management meets at the bargaining table in good faith.
“This contract is a structural breakthrough for museum workers who have been underpaid as a group for years,” said staffer Martina Tanga.
Staff cited wage discrepancies, allegedly inadequate responses to COVID-19 outbreaks, and being asked to do work outside their job description.
Workers told Hyperallergic that they were tired of meager pay and a lack of job security.
Some workers at the museum say they’ve experienced “aggressive union-busting tactics” since organizing.