The current study assesses the effectiveness of supplementary bio-inspired devices (BIDs) in mitigating seismic impact on resilient base-isolated structures. Initially, rigid base-isolated structures with these devices are analyzed under stationary white-noise earthquake excitation using an equivalent linearization technique, accounting for non-linear force-deformation characteristics. Performance indicators such as added stiffness, damping, and overall response mitigation are evaluated. The investigation extends to flexible base-isolated buildings subjected to filtered white-noise excitation, observing the devices' effectiveness in controlling the displacement of the isolation system. Optimal values for the limiting force of the BIDs are identified, minimizing RMS topmost floor acceleration. The findings consistently illustrate the ability of BIDs to control isolator displacement even in the challenging conditions of near-fault motions. Importantly, the results align well with the trends observed under stochastic excitation, highlighting the robustness and potential applicability of BIDs in enhancing the seismic resilience of structures. These insights contribute significantly to advancing seismic engineering practices and offer valuable implications for the development of structural control.