IESCO Jobs 2023 Islamabad Electric Supply Company CTSP. Given an average yearly revenue base above Rs. 290 billion and operating jurisdiction over five districts Islamabad, Rawalpindi, Attock, Jhelum, and Chakwal Islamabad Electricity Supply business is a top electricity distribution business in Pakistan. For the following positions, IESCO is actively recruiting for highly qualified professionals. The applicants should have a proactive management style and have shown they are capable of handling their particular tasks.