Stronghold Engineering, Inc. (SEI) is an award-winning design and construction firm specializing in renowned projects for some of the nation’s largest organizations. Throughout our 30-year history, we have designed and constructed high profile ground up facilities, technically challenging repair and renovations for historical and non-historical facilities, and significant seismic upgrades, as well as large civil, infrastructure, and electrical projects exceeding $2.5 billion in construction cost.

2021 STATISTICS Rank #203 Total Kilowatts Installed 2021: 6,042 Employees: 200 Total Kilowatts Installed Since Founded:41,166 Primary Market: C&I   Primary Service: EPC

 

 

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2020 STATISTICS Rank #156 Total Kilowatts Installed 2020: 7,631 Employees: 214 Total Kilowatts Installed Since Founded:41,166 Primary Market: C&I   Primary Service: EPC

 

 

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2016 STATISTICS 2017 Rank #178 Total Kilowatts Installed 2016: 5,000 Employees: 180 Primary Market: Commercial Primary Service: EPC

 

2015 STATISTICS 2015 Rank #160 Total Megawatts Installed 2015: 4.59 Employees: 185 Primary Market: Commercial Primary Service: EPC

 

2014 STATISTICS 2014 Rank #219 Total Megawatts Installed 2014: 1.755 Employees: 150 Primary Market: Commercial Primary Service: EPC