Headquartered at the Empire State Building in Manhattan, New York City,[1] STV is a portfolio company of The Pritzker Organization.

[2] The firm performed multi-discipline engineering services throughout the country, working on projects, including the Jefferson Memorial in Washington, D.C.,[3] the parachute jump at the 1939 World's Fair, NASA's Vehicle Assembly Building at the Kennedy Space Center in Florida, and the Enrico Fermi National Accelerator Laboratory in Batavia, Illinois.

Also in 1994, the acquisition of STV/Silver & Ziskind added specialized architectural expertise in criminal justice, education, and health care facilities.

In 2021, STV Group, Inc. acquired CP&Y, Inc., an employee-owned engineering, architectural, and field services consulting firm with a staff of over 375 professionals in Texas, Oklahoma, Colorado, Florida, and Virginia.

This significantly expanded STV's presence in Texas and the south-central United States and extended the firm's capabilities in water and highway engineering.