Bosan Engineering Enterprise (BEE) P.C. is a California-based sole-proprietor Traffic Engineering firm headquartered in Aptos, California (Santa Cruz County), founded and wholly owned by Nadia Geesman, PE, PTOE, QSP. BEE was newly established in 2026, structured intentionally as a sole-proprietor practice so that Nadia can provide a small number of municipal clients with the dedicated, hands-on service that larger firms — juggling many contracts at once — often struggle to deliver. 

The Principal Engineer of Bosan Engineering Enterprise (BEE) P.C. brings more than 18+ years of experience serving public agencies and private-sector clients across more than eight states.  This includes clients ranging from federal divisions and state departments of transportation to county governments, municipalities, and site developers.

Representative clients include:

Federal

• Federal Highway Administration (FHWA)

  • including the Eastern Federal Lands Highway Division

State

• California Department of Transportation (Caltrans)

• Virginia Department of Transportation (VDOT)

• Maryland Department of Transportation State Highway Administration (MDOT SHA)

•  Massachusetts Department of Transportation (MassDOT)

• Vermont Agency of Transportation (VTrans)

County & Municipalities

• Fairfax County, VA

• Loudoun County, VA

• Arlington County, VA

• Prince William County, VA

• Town of Leesburg, VA

• California jurisdictions including the Cities of Pomona, Vallejo, Rancho Cordova, Galt, Lodi, Merced, Ceres, and Antioch, and the Town of Atherton

Private sector

developers and property owners across Massachusetts and California, supported through traffic impact studies and development plan review

Carnegie Mellon University - BS Civil Engineering 

University of Massachusetts Lowell - MS Civil Engineering

University of Massachusetts Lowell - Doctoral Research