The Baldridge group research involves development of theoretical methods for treatment of molecules in complex environments, with focus on the development of quantum mechanical-based methods, dispersion enabled density functional theory, and plane-wave GW based methodologies. Particular emphasis is on development of QM-solvation methods, QM-hybrid methods, and cost-effective single reference dynamic correlation methods. Applications span systems in gas-phase, supramolecular complexes, monolayer-surface interfaces, bulk condensed media, and structured crystalline environments.Through experimental collaborations, these tools enable better understanding of technologically and biologically important chemical structures and reaction processes. The group is part of the international team of developers of the electronic structure theory software, GAMESS.