| 1979 |
Bartlett Nuclear, Inc. is founded by Bruce R. Bartlett |
| 1983 |
Bartlett Services, Inc. is established, focusing on government energy facilities |
| 1984 |
Bartlett becomes the largest supplier of radiation protection services to the U.S. nuclear power industry |
| 1985 |
Bartlett becomes the largest supplier of decontamination personnel |
| 1996 |
Excel Modular Scaffold & Leasing Corporation is established |
| 1999 |
Bartlett Support Services, Inc. is established, signatory to national labor agreements |
| 2003 |
Bartlett becomes the only company to have provided radiation protection services to every U.S. commercial nuclear power plant |
| 2004 |
(January) Boston-based private equity firms Berkshire Partners LLC and Summit Partners lead the recapitalization of Bartlett, establishing Bartlett Holdings, Inc. (BHI) |
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(November) BHI acquires Numanco LLC and SUN Technical Services (SUN) |
| 2006 |
Recognition of Bartlett’s successful role in the completion of the Fernald Closure Project and Big Rock Point, Connecticut Yankee, Yankee Rowe and Mound Decommissioning Projects |
| 2007 |
Bartlett acquires leading maintenance company Power Equipment Maintenance, Inc. (PEM) |
| 2008 |
(August) BHI enters the wind turbine market through PEM |
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(December) Bartlett Nuclear is awarded an international contract to support the steam generator replacement project at Angra Nuclear Power Plant in Brazil |
| 2009 |
SUN plays an increased role in U.S. nuclear power station re-start & new build projects |
| 2010 |
BHI is now d.b.a. ‘BHI Energy,’ representing the diversification of our collective group of companies and the energy sectors we serve |