American museums have spent the past several years in the middle of the broadest labor-organizing wave the cultural sector has seen, and the pace has not slowed in 2026.

Workers at large and small institutions have voted to unionize, pressed management for voluntary recognition, filed complaints with the National Labor Relations Board and, in a growing number of cases, ratified first contracts.

Two organizations anchor much of the activity — the American Federation of State, County and Municipal Employees' Cultural Workers United campaign and Local 2110 of the United Auto Workers.

AFSCME describes Cultural Workers United as the largest of its kind, with more than 50,000 workers across museums, libraries, zoos and other cultural institutions. It has organized recent drives at the Los Angeles County Museum of Art, the Detroit Institute of Arts, the New York Transit Museum and the Seattle Art Museum, among others.

Local 2110 of the United Auto Workers, long the dominant union in New York's cultural sector, represents staff at the Museum of Modern Art, the Solomon R. Guggenheim Museum, the Whitney Museum of American Art, the Brooklyn Museum, the New Museum and the Museum of Fine Arts, Boston. In January 2026, it added the Metropolitan Museum of Art.

Researchers have documented both the conditions driving the wave and its near-total success rate.

Museums Moving Forward, which surveys art museum workers nationwide and tracks the sector's unions, reported in October 2025 that more than a quarter of full-time art museum workers — and roughly two-thirds at the entry level — do not earn a living wage and that nearly half had looked for a new job in the prior year. Low pay, burnout and limited advancement were the most-cited reasons.

The same researchers have found that union elections at private, nonprofit U.S. art museums have succeeded in essentially every case since the current wave began in 2019.

This page tracks two kinds of activity: union drives, including organizing campaigns, recognition requests, elections and first contracts; and labor-board complaints, including unfair labor practice charges and related NLRB matters that are not lawsuits.

Labor lawsuits — wrongful-termination suits, contract litigation and the like — are tracked separately in the Urgent Matter lawsuit tracker under Labor and Employment Cases.

Last Updated: 9:45 p.m. on June 22, 2026

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Organizing and Seeking Recognition
Voted to Unionize — Awaiting Certification or First Contract
Under Contract
Labor Board Complaints

Organizing and Seeking Recognition

Campaigns that have announced and are seeking recognition or an election, but have not yet voted.

No campaigns are currently being tracked. Check back for new drives.

Voted to Unionize — Awaiting Certification or First Contract

Units that have secured recognition through an NLRB election or voluntary recognition by management and are awaiting certification or negotiating a first contract.

Detroit Institute of Arts (DIA Workers United)

Union: Detroit Institute of Arts Workers United (DIAWU) — AFSCME Michigan 925, part of AFSCME's Cultural Workers United

Bargaining unit: More than 200 members; a combined unit of professional and nonprofessional staff.

Key dates: Announced intent to organize November 4, 2025; won voluntary recognition February 27, 2026, through a card check and a self-determination vote; AFSCME Michigan welcomed the unit March 11, 2026.

Status: Voluntarily recognized February 27, 2026 — the union's route avoided an NLRB election. Now preparing to bargain a first contract.

Summary: Detroit Institute of Arts workers won voluntary recognition from the museum on February 27, 2026, organizing as DIA Workers United under AFSCME Michigan 925. The union said a card check showed supermajority support and that professional and nonprofessional staff voted unanimously to be represented together in a single unit of more than 200 members. Workers had announced their campaign in November 2025, saying they wanted to build a "welcoming town square" and citing fairer compensation, clearer paths for advancement and greater transparency. They had also called on museum leadership to recognize the union rather than force an election, as LACMA management had declined to do weeks earlier. AFSCME Michigan formally welcomed DIAWU on March 11, and the union said it looked forward to bargaining.

Seattle Art Museum (Seattle Art Museum Workers United)

Union: Seattle Art Museum Workers United (SAMWU) — Washington Federation of State Employees/AFSCME Council 28

Bargaining unit: 136 eligible voters; full-time, regular part-time and part-time flexible employees across the downtown museum, the Seattle Asian Art Museum and the Olympic Sculpture Park.

Key dates: May 13, 2026, letter seeking voluntary recognition by May 27; stipulated election agreement signed May 20; election held June 17, 2026 (97 in favor, 6 against; 10 ballots challenged but too few to affect the outcome).

Status: Voted to unionize June 17, 2026. NLRB listed the case as open and had not certified the unit as of the tally; union is pressing for contract talks.

Summary: Seattle Art Museum workers voted to unionize on June 17, 2026, with 97 ballots in favor and six against, an NLRB tally shows. Organizing as SAMWU under AFSCME Council 28, workers had asked museum director Scott Stulen and the board to voluntarily recognize the union by May 27, citing unsustainable wages, subpar health benefits and top-down decision-making, and seeking just-cause employment language in place of at-will status.

After the museum did not voluntarily recognize the unit, the parties signed a stipulated election agreement on May 20. The museum said it accepts the outcome and looks forward to bargaining. The campaign followed an earlier organizing effort by the museum's security workers, who formed the independent SAM VSO Union in 2022 and won a first contract in 2024 after a 12-day strike.

Mystic Seaport Museum

Union: AFSCME Council 4 (no distinct institutional union name stated in available records)

Bargaining unit: 89 eligible employees; full-time and regular part-time employees, excluding managers, supervisors and certain specialized roles. 82 ballots counted.

Key dates: Petition filed March 20, 2026; election held April 16, 2026 (42 in favor, 40 against; 5 ballots challenged — enough to swing the result).

Status: Outcome unresolved. The NLRB case remains open while officials review the five challenged ballots, which could change the final result.

Summary: Workers at the Mystic Seaport Museum in Connecticut voted narrowly to unionize with AFSCME Council 4 on April 16, 2026, by a tally of 42 to 40, but five challenged ballots left the outcome unresolved. Organizers said workers were seeking a stronger voice in workplace decisions, citing concerns over job security, wages and healthcare — and questions about the museum's finances and recent program cuts. It was not immediately clear when the challenged ballots would be resolved or when a final certification decision could be made.

New York Transit Museum (NYTM Collective)

Union: New York Transit Museum Collective — AFSCME Cultural Workers United, District Council 37

Bargaining unit: 24 eligible voters. It explicitly excludes direct Metropolitan Transportation Authority employees, retail staff, curators and management.

Key dates: Announced intent to organize February 4, 2026; petition filed March 3, 2026; election held March 27, 2026, with 100% of ballots cast in favor.

Status: Voted to unionize March 27, 2026; now bargaining for a first contract.

Summary: New York Transit Museum workers voted unanimously to unionize on March 27, 2026, in an NLRB-supervised election, organizing as the NYTM Collective. While initial union petitions estimated the organizing pool at roughly 40 workers, the final audited voting list was whittled down to 24 eligible voters following structural exclusions in the election agreement. Of those eligible, all 21 counted ballots were cast in favor of joining District Council 37 of AFSCME, with zero votes against and six ballots challenged.

Workers had sought voluntary recognition before filing their petition and said they were now focused on bargaining for their first contract. The vote followed the Met's January unionization and added to a wave of organizing across New York cultural institutions.

Metropolitan Museum of Art (UAW Local 2110)

Union: UAW Local 2110 (Technical, Office and Professional Union), United Auto Workers; AFSCME District Council 37 listed by the NLRB as an intervenor.

Bargaining unit: 896 eligible voters; full-time and regular part-time professional employees across roughly 50 departments at The Met and The Met Cloisters, including curators, conservators, librarians, sales specialists, visitor experience coordinators, development officers and digital and IT staff. Excludes managers, supervisors, guards, confidential employees and workers already represented.

Key dates: Petition filed November 17, 2025; election held mid-January 2026, results announced January 16, 2026 (542 in favor, 172 against; about 91% turnout). Roughly 100 additional ballots remain sealed after the museum challenged the workers' eligibility.

Status: Voted to unionize January 2026. Eligibility of the roughly 100 challenged staff is to be decided through arbitration after certification; first-contract bargaining to follow.

Summary: Metropolitan Museum of Art staff voted to unionize in January 2026, capping an organizing effort that began during the pandemic and ran more than four years. Of 896 eligible voters, 542 cast ballots in favor of joining UAW Local 2110 and 172 against. The museum challenged roughly 100 ballots, objecting to the inclusion of certain staff. The museum was represented by management-side firm Littler Mendelson and the workers by labor firm Levy Ratner. Ahead of the vote, dozens of New York City and state elected officials, including Mayor-elect Zohran Mamdani, signed a December 2025 open letter backing the workers.

Los Angeles County Museum of Art (LACMA United)

Union: LACMA United — Cultural Workers United, District Council 36, AFSCME.

Bargaining unit: Approximately 284 full- and part-time employees across the Wilshire Boulevard campus, the Watts Towers site and off-site storage facilities, per the NLRB docket.

Key dates: Announced intent to organize October 29, 2025; requested voluntary recognition by November 5; museum declined (November 6) and filed a representation petition November 12; federally supervised election held December 16, 2025, with 96% voting in favor.

Status: Voted to unionize on December 16, 2025.

Summary: LACMA workers voted overwhelmingly to unionize on December 16, 2025, with 96% in favor, after the museum declined to voluntarily recognize LACMA United and the dispute moved into a federal election. Workers announced their campaign in late October under AFSCME's Cultural Workers United, District Council 36, citing pay, benefits and working conditions. After LACMA declined recognition, organizers initially filed with the California Public Employment Relations Board, but the museum filed a representation petition with the NLRB on November 12, placing the election under federal jurisdiction. Although LACMA is operated by Los Angeles County, the NLRB docket treats Museum Associates as the employer for purposes of federal labor law.

Under Contract

Units that have ratified a collective bargaining agreement.

Denver Art Museum (Denver Art Museum Workers United)

Union: Denver Art Museum Workers United (DAMWU) — AFSCME State Council 18

Bargaining unit: 211 eligible voters at the organizing election; the union won 120 to 59, with 10 ballots challenged.

Key dates: NLRB certified the union March 15, 2024; first contract ratified in June 2026 (announced June 11) after about two years of negotiations.

Status: Under contract. The union calls it the first collective bargaining agreement reached at a Colorado museum.

Summary: Denver Art Museum workers ratified their first union contract in June 2026, an agreement AFSCME says is the first reached at a Colorado museum. Organized as DAMWU under AFSCME State Council 18, workers had voted to unionize 120 to 59 and were certified by the NLRB on March 15, 2024, then bargained for roughly two years amid what the union called significant pushback from management. The union said the contract would improve pay, benefits and worker rights.

Labor Board Complaints

Unfair labor practice charges and related NLRB matters. Labor lawsuits are tracked in the lawsuit tracker.

NLRB charge against the Metropolitan Museum of Art

Charge filed November 18, 2025, with the NLRB's New York regional office.

Status: Open and under review.

Summary: A Met employee, whose name was redacted in released records, filed an unfair labor practice charge alleging the museum suspended the employee "in order to discourage union activities or membership." The charge was filed a day after workers petitioned for union representation, and weeks before the January election. Records obtained by Urgent Matter through a Freedom of Information Act request show the NLRB withheld some materials, citing a pending law-enforcement proceeding, and that the charging party was instructed to submit evidence, a witness list and a timeline. The museum retained Jackson Lewis for the charge and Littler Mendelson for the election. Federal labor law bars employers from disciplining workers to interfere with organizing.