Digital: Powering the Next Chapter in Aerospace and Defense
The aerospace and defense (A&D) industry stands at a critical turning point. Next-generation aircraft, smart manufacturing, mobility as a service, net-zero emissions goals and enhanced operational efficiencies are reshaping the industry's future.
With over three decades as a trusted global engineering and technology partner for aerospace and defense, we bring next-gen technologies that help our clients accelerate production, transform customer experiences and foster continuous innovation. Our aerospace and defense engineering services blend deep domain knowledge with advanced digital capabilities to meet your evolving needs.
Accelerate Transformation Across the Aerospace and Defense Ecosystem
From the ground up to the air and into space, our team brings unparalleled expertise in engineering and digital solutions to help our clients expedite their digital transformation journey.
We cater to various A&D sectors, extending comprehensive support to OEMs and Tier 1 companies in both commercial and defense. Our focus is on building secure and reliable platforms through product engineering and digital consultancy. Leveraging our connectivity solutions, we enhance personalized travel experiences and employ real-time monitoring and predictive maintenance to streamline operations for airports, airlines and maintenance, repair and overhaul (MROs). Additionally, we design and develop onboard and ground support equipment for satellite-based systems.
We harness a blend of cloud native, digital and next-gen solutions to capture the advanced air mobility market, helping our clients push the boundaries of innovation and thrive in the evolving A&D landscape. Our integrated offerings drive efficiencies, enhance experiences and create new revenue streams for clients, ensuring a competitive edge.
Commercial
Defense
Space
Civil Aviation
AAM/eVTOL
Partner Perspectives
Awards and Recognitions
Ranked as the No. 1 engineering services provider in Everest Group’s 2023 PEAK Matrix Provider of the Year™ Awards
Read the news releaseHCLTech positioned as a leader in Everest Group’s 5G Engineering Services PEAK Matrix® Assessment 2023
Download the analyst reportHCLTech positioned as a leader in IDC MarketScape worldwide application modernization services vendor assessment 2023
Download the analyst reportHCLTech recognized as a leader in Zinnov Zones for engineering R&D services 2022
Download the analyst reportHCLTech Positioned as a Leader in IDC MarketScape Worldwide Manufacturing PLM Systems Integrator and BPO Services Vendor Assessment 2022
Download the analyst reportCase Studies
Trends and Insights


Talk to Our Experts
Experience enhanced efficiencies, create unmatched experiences and discover new revenue streams. Gain the competitive edge you need with our defense engineering services and aviation engineering services.
Frequently Asked Questions about Aerospace and Defense Engineering Services
HCLTech serves the entire aerospace and defense spectrum—including commercial aviation, defense, space, advanced air mobility and MRO. Drawing on decades of engineering experience, we support OEMs, Tier-1 suppliers and operators with tailored solutions that address product development, manufacturing, digital transformation and fleet readiness.
HCLTech stands out for our deep domain expertise, global reach and proven ability to deliver at scale. With over 30 years of experience in aerospace and defense engineering and partnerships with leading OEMs and Tier-1 suppliers, we combine our engineering expertise with advanced digital capabilities to accelerate innovation and drive measurable outcomes for our clients.
Yes, we provide comprehensive support across the entire product lifecycle, including upgrades and sustenance. Our teams handle software, hardware and mechanical engineering to optimize legacy systems, improve reliability and ensure continued compliance. This keeps our clients’ products competitive, efficient and aligned with evolving industry requirements.
We offer tailored aftermarket aerospace engineering services, including technical documentation, repair engineering, predictive maintenance and field support. By leveraging digital tools and data analytics, we help clients maximize fleet availability, reduce downtime and ensure regulatory compliance—keeping their operations agile and mission-ready.
Yes, we actively partner with clients in the advanced air mobility and eVTOL sectors. Our expertise encompasses product engineering, digital manufacturing and certification support, helping to accelerate the development of safe and innovative solutions. We enable faster development cycles and regulatory compliance, supporting the future of urban air transport and next-gen aerospace platforms.
We maintain strict compliance with global defense regulations, including ITAR, through certified processes, secure infrastructure and specialized teams. Our seven ITAR-compliant centers in the US demonstrate our commitment to safeguarding sensitive data and meeting the highest standards for defense clients, ensuring reliable and audit-ready operations.
Absolutely. We streamline new product development with end-to-end aerospace and defense engineering solutions, leveraging digital tools, automation and cross-domain expertise. Our approach reduces time-to-market, enhances design quality and enables rapid prototyping, helping clients launch innovative products faster while maintaining regulatory and safety standards.
Digital engineering transforms aerospace and defense by enabling smarter products, predictive maintenance and connected operations. We use MBE, MBSE, AI, IoT and digital twins to drive efficiency, reduce costs and improve quality. Our expertise helps clients realize faster development cycles, better asset management and enhanced operational resilience.
HCLTech supports net-zero ambitions through sustainable engineering, manufacturing and operations solutions. Our Net Zero Intelligent Operations platform enables real-time monitoring and reduction of energy use and emissions. We help clients minimize environmental impact throughout the product lifecycle, aligning with global sustainability standards and targets.
We provide flexible engagement models tailored to OEMs and Tier-1 suppliers, including turnkey projects, dedicated engineering teams, managed services and co-innovation partnerships. Our scalable approach ensures that clients can leverage our expertise for their specific needs—whether accelerating product launches, optimizing operations or driving digital transformation.