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Expect the Extraordinary.


Maintenance, Modification, & Construction (MMC)

APTIM is the maintenance and modification provider to the nuclear power generation market, specializing in outage work scope, online maintenance, and capital project execution. We are currently the maintenance and modification contractor of choice at over 38 nuclear units and we typically provide well over 80 percent of the supplemental support personnel at each of these sites. 

Customers include: Energy, Exelon