From  http://www.scintrexltd.com/about_us.htm

Scintrex is like a tree with two main roots and many branches.

The oldest root dates back to 1946, when Edgar Sharpe, an inventive mechanical instrument designer, set up a machine shop to produce fine mechanical instruments and components. Through his association with 

Dr. Arthur Brant, then Professor of Geophysics at the University of Toronto, 

he designed and built a vertical force magnetometer. This young company, then known as Sharpe Instruments Limited, grew over the years, producing a number of innovative, mechanical magnetometers, several electrical measuring devices and electromagnetic systems, for the purposes of mineral exploration. Sharpe Instruments also acquired the technology of a quartz element gravity meter and started to produce it. In 1961, the company went public under the name of E.J. Sharpe Instruments of Canada Ltd.

The second root of the company dates back to 1956, when Dr. Harold 0. Seigel, then a consulting geophysicist, founded Seigel Associates Limited, 

a company providing consulting and contracting services to the mineral exploration industry. Dr. Seigel became a member of the Board of Directors of E.J. Sharpe Instruments of Canada Ltd., when it became a public company in 1961 and was appointed President in 1964.

In 1967, E.J. Sharpe Instruments of Canada Ltd. acquired Seigel Associates Limited and the two companies merged under the new name of Scintrex Limited, an acronym for Scientific Instruments, Research and Exploration. 

The combined company grew so rapidly that in 1969, Scintrex moved into 

a new plant located at 222 Snidercroft Road, Concord, which remains its current location.

During the 1960's, the company introduced a line of induced polarization equipment, fluxgate magnetometers, airborne and ground electromagnetic systems for base metal exploration, and gamma ray spectrometers for airborne, ground and borehole exploration for uranium, all developed through its own 

R&D efforts.

During the 1970's, Scintrex further developed its 1960's technology and expanded its product lines by producing a field-portable mercury spectrometer and a time-resolved, laser-induced fluorescence analyzer for uranium exploration. In addition, Scintrex developed the magnetic induced polarization method and the Metalog neutron-prompt gamma, in-situ analysis system, unique in both concept and execution.

In the 1980's, Scintrex's technological base was further expanded, with the launch of an atomic absorption spectrometer, and the development of the revolutionary Luminex system, used for airborne and ground exploration for minerals. In 1982, the company purchased the Cesium High Sensitivity Magnetometer division of Varian Associates Inc., thus bringing this valuable technology in-house, for use in both ground and aerial UXO applications. In 1988, the company purchased the Earth Science Division of EDA Instruments Ltd., adding their line of exploration, seismology, and radon detection and monitoring instruments to its already extensive line of earth science instrumentation. In 1989, Scintrex developed a quartz-based relative gravimeter, the CG-3, based on the PhD thesis of Dr. Andrew Hugill, who is currently Scintrex's Director of Engineering.

In the 1990's, Scintrex developed a new, automated resistivity imaging system (SARIS) and a new Cesium magnetometer (CS-3).

In 1999, Scintrex merged with Denver based Micro-g Solutions, a manufacturer of absolute gravimeters, and Auslog Pty. Inc., an Australian based borehole logging company, in order to expand its already diverse line of instrumentation.

LaCoste & Romberg - Scintrex, Inc. produce over 90% of the world's gravimeters in addition to the extensive geophysical instrumentation product line at Scintrex. The new company has offices in Concord, Ontario (Scintrex), Austin, Texas (LaCoste & Romberg), Denver, Colorado (Micro-g Solutions Inc.) and Brisbane, Australia (Auslog).

In 2001, LaCoste & Romberg, based in Austin, Texas, a long-time producer of metal, spring-based land and air /sea relative gravimeters, and Scintrex merged to form a new company known as LaCoste & Romberg - Scintrex, Inc., operating out of headquarters in Concord, Ontario.

Scintrex and its sister companies look forward to meeting your geophysical requirements.