Cambridge International Systems, Inc. is a veteran-owned, veteran-led security and systems integrator that provides aviation, surveillance and sensors, critical-infrastructure/C6ISR, and cybersecurity support. Its official site says it serves government, private, and nonprofit customers in more than 70 countries, with more than half its workforce deployed or stationed overseas. It maintains global-support offices in Bahrain, Colombia, Germany, and Mexico; location, clearance, and hiring requirements depend on the contract.