Setting 2021 Financial Targets

ATN has a foundation of large, multi-year highly technical contracts Agency Award Size Duration Contract Scope $4.6B 8.5 years to 2025 MISSILE DEFENSE DEPARTMENT AGENCY OF DEFENSE NASA UNITED PARTMENT TATES OMMAND OF ENERGY AMERICA 197 UNITED ST DSTATES $1.1B $1.9B $771M 8 years to 2025 9 years to 2022 6 years to 2023 $5B 10 years to 2027 $1.4B 10 years to 2027 Operating the Missile Defense Integrated Operations Center, supporting its network infrastructure, modeling and simulation, and development of systems ✓ ~75% of scope is related to IT services - Marshall Science and engineering solutions to support the space launch system, space station and other projects, 6x successful rebids Johnson - IT development and infrastructure support across multiple initiatives including Orion Capsule, life support systems and robotics 20-years supporting national security and SOF missions via intelligence analysis, operational mission planning, cybersecurity and insider threat solutions, weapon system acquisition and sustainment, IT Service Management, and technology insertion to support critical operations ✓ Recently awarded the SITEC II global enterprise IT solutions contract Nevada National Security Site management and operations contract Jacobs is a 38% minority partner on a Honeywell-led joint venture Paducah deactivation and remediation contract Jacobs (CH2M) is a 40% majority partner in the joint venture Focused on mission critical government priorities JACOBS ® 21

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