JQL Electronics Inc
JQL offers a broad range of isolators and circulators from 300MHz to 120GHz including coaxial isolators, coaxial circulators, drop-in isolators, drop-in circulators, SMT surface mount isolators, SMT surface mount circulators, waveguide isolators, waveguide circulators, filters and more
http://www.jqlelectronics.com

Directional Boring Central
News and Information for Directional Boring Professionals
http://www.directionalboringcentral.com/

Precision Directional Services
PDS is located in Katy, Texas and offers all phases of directional boring around the U.S.A.
http://www.fortunecity.com/business/ecommerce/1406/

Kenbotong Communication Ltd
Antenna manufacturer and exporter of directional and omni-directional antennas, handportable, car mobile, and cellular telephone antennas.
http://www.kenbotong.com/

Laney Directional Drilling Co.
Humble, Texas based construction firm specializing in directional drilling.
http://www.laneydrilling.com/

Hascall-Denke
Base station antennas include broadband omni-directional as well as directional antennas.
http://www.hascall-denke.com/antenna.htm

Ozzie's Directional Drilling
Directional drilling contractor based in Scottsdale, Arizona.
http://www.ozzies.com/

Kadee: The Coupler People
Founders & manufactures of the original world renowned Magne-Matic® knuckle couplers HOn3 through G Scales. Fine scale "RTR" freight cars & accessories. Manufactured & assembled in the USA.
http://www.kadee.com

Sharewell Directional Drilling
Sharewell is the premium supplier of downhole drilling tools, guidance systems and services for the Energy and HDD industries.
http://www.sharewell.com

Ferrier Coupler Inc.
Improves the amputee's mobility. Prosthetics device for an artificial limb that allows the lower leg be disconnected or exchanged without socket removal.
http://ferrier.coupler.com/