MJS started as a software consultancy in 1995 developing LoJack Corporation's 2nd generation radio tower-to-vehicle communication software.
Since then, MJS has created products, software, and processes for notable clients such as LoJack, Vehicle Security Resource Ltd [Bogotà, Colombia],
Black Belt Magazine™ [Rainbow Publications, Inc], CarSearch Nigerian Ltd [Lagos, Nigeria], Leggette Actuaries Inc, MapFrame Inc, and GE Energy.
While representing GE Energy as a Senior Consultant, Mark Johnson provided consultation, software development, and support to the following energy companies:
AEP Energy, Atlanta Gas Light, ESKOM [Pretoria, South Africa], Excelon, Florida Power & Light, Idaho Power, Manitoba Hydro [Winnipeg, Manitoba], Nebraska Public Power District,
Nicor Gas, PECO, PNG, PPL, Southwest Gas, Williams Gas & Power, and XCEL Energy.
Currently MJS is developing GIS products utilizing OpenStreetMap® data and software supporting sUAS [small unmanned aircraft systems].
'Mark Johnson Software' registered with Dun & Bradstreet in 1998.
2018 - 2019
2017 - 2019
Licensed to GE Energy 2009-2010
1998 - 2000
Mark Johnson - Cedar Hill Texas, US