What is an ERISA Claim? Any claim for benefits brought under a private sector or union sponsored employee benefit program is an ERISA claim.401(k) fiduciaries can prudently include private equity as a component of an ERISA plan's diversified investment option, such as a target date fund. The Riverside Company is a global private equity firm focused exclusively on the smaller end of the middle market. This Brochure provides information about the qualifications and business practices of. Envestnet Retirement Solutions, LLC ("ERS"). For ranking methodologies, please see here. Recognition image 10957. Ed. 2d 208, 1980 U.S. LEXIS. Rules of practice in proceedings relative to the private express statutes.