Cornerstone’s Offices Across the U.S.

Headquartered in Washington, D.C., Cornerstone has an established federal, state and local presence.

The firm’s state and local footprint stretches across the Northeast to the Mid-Atlantic, South, Mid-West and Mountain West. We have offices across 16 states and D.C., housing nearly100 professionals.

In addition to our physical office locations, Cornerstone actively represents clients in Massachusetts, Montana and Pennsylvania. We also partner with consultants across the country to help our clients achieve their unique goals and objectives.

Our firm works closely with national organizations such as the Republican Governors Association (RGA) and the Democratic Governors Association (DGA), the Republican Attorneys General Association (RAGA) and the Democratic Attorneys General Association (DAGA), giving us insight into all 50 statehouses.