- 1970s
- Established in the 1970’s as an industry service shop with emphasis on the repair of water injection pumps.
- 1982
- Initiated repair of gas turbine, centrifugal gas compressors, high-speed equipment.
- 1983
- With new ownership in 1983, the company name was changed to GLM Corp.
- 1986
- A new 8,000 square foot facility was built. Moved into full skid restoration.
- 1996
- Present owner purchased GLM, first CNC equipment purchased, upgraded balancing equipment.
- 1997-2001
- Equipment purchases: CNC lathe, 4-axis mill, manual machines upgrade.
- 2001
- Became NB certified for the repair and testing of relief valves.
- 2002
- Expanded facilities adding 9,600 square feet and a 20-ton beam crane.
- 2005
- Replaced the manual lathes, retiring the older equipment.
- 2008
- Expanded facilities adding another 9,000 square feet to house equipment purchases (Mazak 5-axis milling center, Mazak QT 450 CNC lathe, AGIE sinker EDM, AGIE CNC wire EDM).
- Shenck H60 balancer installed.
- 2009
- Addition of a Metris CMM (coordinate measuring machine) with laser scanning.
- 2010
- Added a steam boiler to further the safety valve program to Section I valves.
- 2014
- GLM completes 250th TB5000/TB5400 overhaul and repair.
- 2015
- GLM adds Siemens/Ruston TA1750 and Tornado (SGT-200) overhaul and repair capabilities.
- 2016
- Thousands of engineered part numbers designed and demonstrated on Solar and Siemens/Ruston gas turbines.
- Changes its name to GLM Energy Services with major investments from D’Orazio Capital Partners.
- 2017
- A new 9,000 square feet facility built to house the expanding valve business.
Added a Mazak Variaxis i-700T to expand milling operations.
- 2018
- Acquired Industrial Instrument Service Company (IISCO), to expand offering in instrumentation and calibration lines.