Zoological Society of San Diego Restated Pension Plan for Union Employees

Zoological Society of San Diego Restated Pension Plan for Union Employees

The Zoological Society of San Diego Restated Pension Plan for Union Employees operates as a non-contributory defined benefit pension plan for union workers of the San Diego Zoo Wildlife Alliance. The plan was established through a restatement of prior pension obligations and is sponsored by the Zoological Society of San Diego, the nonprofit entity that operates the San Diego Zoo and San Diego Zoo Safari Park. Covered employees are represented by Teamsters Local 542, which negotiates wages, benefits, and working conditions on their behalf. The plan is a classic defined benefit structure — participants do not contribute; instead, the Zoological Society bears the full funding and investment risk to deliver a predetermined monthly retirement benefit based on years of service and final average earnings. While the plan's specific asset allocation is not publicly disclosed, typical holdings for such municipal-adjacent nonprofit plans include a mix of fixed income, domestic and international equities, real assets, and alternative investments held in commingled trusts. The plan's liabilities are tied to the ongoing operations of a major cultural institution that welcomed approximately four million visitors annually pre-pandemic (per San Diego Zoo Wildlife Alliance, 2019). The plan is administered in coordination with the broader financial operations of the San Diego Zoo Wildlife Alliance, which reports consolidated financial statements as a 501(c)(3) nonprofit. The Alliance also maintains the Foundation of the Zoological Society of San Diego, a separate philanthropic entity that manages endowment assets to support conservation, research, and education programs. The pension plan's funded status and actuarial assumptions are disclosed periodically in the Alliance's audited financial filings or required governmental disclosures. Teamsters Local 542, based in San Diego, represents workers across multiple industries in Southern California and maintains an active role in monitoring the plan's health. The plan's structure reflects a broader pattern among large cultural and scientific nonprofits that retain traditional defined benefit plans for unionized workforces, even as many corporate peers have shifted to defined contribution models. The non-contributory design — common in collectively bargained municipal and quasi-municipal settings — makes the plan a deferred compensation obligation of the Alliance, linking the retirement security of zookeepers, groundskeepers, mechanics, and other union staff directly to the long-term financial sustainability of one of the world's leading conservation organizations.