The Leader in Fiber Optic Microscope Inspection, Cleaning Products, Sales & Services

EESi has been in business since 1986. It began as a Manufacturer’s Representative for electro-optical/fiber optics, RF, electrical, electronic, electromechanical equipment, and test and measurement instrumentation systems selling to the hi-tech manufacturing, engineering, service, telco, and cellular industries.

The Corporation offered sales representation for high technology manufacturers to customers in Texas, Oklahoma, Arkansas, Louisiana, Kansas, Missouri, Iowa, and Nebraska. Primary equipment sold was fiber optic products, test & measurement instrumentation, transmission, communication, and production equipment as well as devices for the telecommunications, control, computer, local area network, military, and semiconductor industries.

With a DBA granted for Cletop.Com in 2005, EESi became a reseller for the same type of products previously sold as a Manufacturer’s Representative, but now on a world wide basis via the internet.

Some, but by no means all, of the companies EESi has Represented over the past 28 years are:

  • Acterna
  • Aerotech World Trade Ltd.
  • Antel Optronics
  • Anritsu
  • Aurora Instruments
  • Automatic Connector, Inc.
  • Chase Electronics, Ltd.
  • EOTec, Corp.
  • Exfo
  • GenRad
  • Intelco Corporation
  • Keopsys
  • Lightel Technologies
  • Lightwave Communications
  • Lindgren RF Enclosures
  • Marconi Instruments
  • Meridian Technologies
  • NCR Corporation
  • Odetics Telecom
  • Oplink Communications, Inc.
  • Photonetics, Inc.
  • Photon Kinetics, Inc.
  • Porta Systems
  • Remee Products Corporation
  • Rifocs, Inc.
  • Selco Products
  • Stanford Research
  • The Siemon Company
  • Virtual Photonics, Inc.
  • Wandel & Goltermann
  • Warren & Brown
  • Wavetek

Lyel Upshaw Jr.

Lyel Jr. attended UNLV on a swimming scholarship before joining EESI in 1994 in sales. He provided customer and trade show support, made sales calls, and demo’ed our various RF and Fiber Optic products. He also was instrumental in the contract assembly work EESI provided prior to 2006.

From 2006 to 2010 Lyel Jr. worked for AOS, Inc. in engineering support and logistics. He rejoined EESI in 2010 and was appointed President in 2015. He is currently responsible for domestic and international order processing, shipping, and technical customer support.

Outside EESI, Lyel’s interests are in sports and outdoor activities.

Lyel Upshaw Sr.

Lyel Sr. is the founder and CEO of EESI. He holds a BSEE degree from Purdue University and is a Texas Registered Professional Engineer (Inactive).

Lyel has sixteen years experience in electronic design and test in the telecommunications industry at Rockwell International, formerly Collins Radio Company.

After leaving Rockwell International in 1981, Lyel has worked in sales for over 34 years both direct and as a manufacturer’s representative. During that time, most of his sales experience has been in fiber optic, RF, cellular, and microwave test instrumentation.

Lyel Sr. is currently responsible for all the Company IT functions.

Lyel has been a member of the National Society of Professional Engineers and Texas Society of Professional Engineers. He is a Life Member of the IEEE and holds the Advanced Class Amateur Radio Operator license W50IZ..