In a shallow container, mix together the maple syrup, soy sauce, olive oil, garlic, ginger, orange zest and orange juice. Add the pork tenderloins, turn to cover, and marinate for at least an hour and up to overnight, refrigerated.

Preheat oven to 375. Heat a drizzle of oil in a large skillet over medium high heat and sear the tenderloin on all sides until nicely browned. Transfer the tenderloin to a baking sheet and place in oven. Cook until a thermometer inserted in the largest part of the tenderloin registers 135 degrees, about 10-15 minutes.

While the meat is cooking, bring any remaining marinade to a simmer and cook for 2-3 minutes to reduce and thicken into a sauce. Remove from heat. Allow the meat to rest for 5-10 minutes, then cut into slices. Drizzle with the sauce and serve.