OESCO's reach is unmatched among Oklahoma electrical contractors. We routinely handle projects of all sizes throughout the state and region from our offices in Oklahoma City and Tulsa.


OESCO has been a member of the National Electrical Contractors Association since 1920 and BICSI since 1996.

We have been affiliated with Federated Electrical Contractors (FEC) for more than 50 years, which has extended our reach even farther. FEC is an international network of leading electrical contractors performing more than $3 billion in annual sales and a valuable partner for our company. This affiliation enables OESCO to gain information, leverage cost benefits and provide global reach with local market expertise. Wherever you're building, we know the lay of the land (or have an established relationship with partners who do).


For more than 20 years, OESCO has ranked in the top quartile of electrical contractors listed in Engineering News-Record's annual Top 600 Specialty Contractors.


OESCO is a three-time recipient of the Federated Electrical Contractors' Joint Venture of the Year Award for the Federal Bureau of Prisons' Medical Center in Butner, N.C.; the General Motors plant expansion in Oklahoma City; and the Downstream Casino Resort in Quapaw, Okla.