"Between 1980 and 1995, while John Sweeney was president, the membership of the Service Employees International Union rose from around 600,000 to over 1.1 million. It continued to increase after 1995, making the SEIU the largest and fastest-growing union in the country. This growth was remarkable because it occurred at a terrible time for unions, one where the overwhelming emphasis – in both the media and academic scholarship – was on labor's decline. While scholars have noted the SEIU's growth, there has been little sustained analysis of how it was achieved. Existing accounts also posit growth largely as a reflection of the union's organizing prowess. Drawing on the SEIU's papers and interviews, this article argues that the union's growth under Sweeney did reflect its commitment to organizing. At the same time, the article makes a fresh contribution by showing that the SEIU also grew because of lesser-known factors, including the affiliation of independent unions and legislative advances in public sector rights. The SEIU also benefited from operating in a growing sector of the economy, where low-paid workers needed unions. These conclusions are developed through analysis of “flagship” drives at Beverly Nursing homes, Blue Cross/Blue Shield, and the high-profile “Justice for Janitors” campaign."

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