Optimal Research Sites, LLC's EIN is 88-3020114.
Download the official 2025 Form 5500 (PDF) for Optimal Research Sites, LLC from the U.S. Department of Labor's EFAST2 system.
Download the official 2025 Form 5500 (PDF)Optimal Research Sites, LLC's plan includes profit-sharing, ERISA 404(c) participant direction, a 401(k) feature, automatic enrollment, a default investment (QDIA).