Taft-Hartley Third Party Administration for Union Benefit Plans

82+ years of experience delivering trusted health & welfare and retirement plan administration for complex multiemployer funds.

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Our Services

    • Health & Welfare Administration

    • Enrollment & Eligibility

    • Claims Processing (Medical, Rx, Dental, Vision)

    • Retirement Benefits Management (DB, 401(k), DC)

    • Self-Administered Fund Support

    • Client Relationship Team

    • Customer Care

    • Contribution Accounting

    • Trust Accounting

    • HIPAA Privacy & Security

    • Regulatory Compliance Support

    • Board Management Solutions

    • Dependent Eligibility Audits

    • Secure Technology Solutions

    • Integrated Systems

    • Online Portals for Participants, Employers, Trustees and Providers

    • Data Analytics & Reporting

Work With Us

Proven Performance at National Scale - 2025 Results

  • 8.3+ Million

    Claims Processed

  • $2.8 Billion

    Benefits Paid

  • 94.5%

    Claims Processed Within 15 Days

  • 69.8%

    Claims Auto-Adjudication Rate

  • $8.2 Billion

    Contributions Processed

  • 1.8 Million

    Member Calls Handled

  • 92%

    First-Call Resolution

  • 4.2 / 5

    Member Satisfaction

  • 2.6M

    Retirement Payments

  • $4.0B

    Paid to Retirees

  • 37,000

    Retirement Applications Processed

Technology Built for Complex Taft-Hartley Plans

Each plan is unique. Zenith’s fully integrated benefits administration platform brings together web access, reporting, customer service, accounting, and secure data management in one system. Dedicated resources tailor our technology to your fund’s needs—supporting compliance, automation, and precise benefit processing.

Dedicated Client Service Teams — Real People, Real Accountability

Your participants speak with teams trained on your specific plan. Our client relationship teams engage through face-to-face meetings, follow-up calls, and ongoing process improvement. CRM-enabled service tracking ensures nothing falls through the cracks, while role-based access gives trustees transparent visibility into performance, financials, and operations.

Net Promoter Score:
42.0 (2025)

Scores above 30 indicate strong customer loyalty and satisfaction.

  • “When OE3 transitioned from our former third-party plan administrator, Zenith management and staff showed an exceptional ability to seamlessly implement our many trust funds. I find Zenith to be a trustworthy and genuine partner. Operating Engineers Local 3 has enjoyed a productive and collegial relationship with Zenith since 2016.”

    - Russ Burns, Co-chairman Of Majority Operating Engineers Local 3

  • “Zenith is adept at keeping up with changing times and demographics, and I believe they excel in providing these services compared to most in the industry. The ease of access through portals is a significant advantage. Their level of technological advancement and implementation is impressive, and once I got the hang of the system, the programs worked seamlessly for me.”

    - Rodrick Smith, Trustee, MN, ND & SD Bricklayers and Allied Craftworkers Local 1

  • “Zenith has been the third-party administrators to the UFCW National Pension Fund as well as the UFCW Variable Annuity Pension Fund for many years. The staff at Zenith has worked hard to make sure that our members receive the benefits that they have earned and receive them in a timely fashion. Zenith works side by side with UFCW to make sure our members receive the highest quality service and attention to make the pension process as simple as possible.”

    - Timothy M. Melia, President of UFCW Local 328 & Trustee on the National Pension Fund and UFCW Industry – Variable Annuity Pension Fund

  • “Collaborating with Zenith is a pleasure, and their quick support in addressing inquiries is highly appreciated. The timely responses, excellent service, and positive engagements all contribute to the solid partnership. Their commitment to fund management and customer service is evident in efficiently managing Local 640's plans.”

    - Debra Margraf, Union Trustee, IBEW Local 640 Arizona

  • "The Zenith team professionally and promptly manages employer contributions and delinquencies. Their efficiency in this regard is highly commendable.”

    - Andy Rico, Union Trustee, NECA IBEW Local 176

  • “Zenith has been our trusted third-party claims processor for over two decades, and they continue to deliver exceptional service.”

    - Thomas Daniel, Administrator, ILWU New Orleans Employers Int’l Longshoreman

Evaluate Zenith for Your Next RFP

Partner with a national Taft-Hartley TPA combining 82 years of expertise with secure, integrated technology.

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