Leidos vs Automatic Data Processing
Side-by-side comparison of AI visibility scores, market position, and capabilities
Reston VA defense intelligence and government IT (NYSE: LDOS) $16.7B FY2024 revenue (+8%); NSA/DoD classified IT, VA EHRM $10B+ EHR modernization, Smiths Detection, competing with SAIC and Booz Allen.
About
Leidos Holdings, Inc. is a Reston, Virginia-based defense, intelligence, and civil government IT services company — publicly traded on the New York Stock Exchange (NYSE: LDOS) as an S&P 500 Industrials component — providing national security solutions (IT services for US intelligence community, Department of Defense analytics, cybersecurity), health and civil government services (VA electronic health records, HHS IT systems, FAA air traffic control modernization), and commercial services through approximately 47,000 employees. In fiscal year 2024, Leidos reported revenues of $16.7 billion (+8% year-over-year), with the National Security & Digital segment generating the majority of revenue from classified intelligence community IT programs and Department of Defense cybersecurity and analytics contracts, while Health & Civil generated revenue from the Leidos Digital Modernization contract for the Department of Veterans Affairs electronic health records (replacing VistA legacy EHR with Oracle Cerner's Millennium platform) — a 10-year, $10+ billion program that was simultaneously Leidos's largest contract and largest program execution challenge. CEO Tom Bell (joined 2023, previously from Rolls-Royce North America) has focused Leidos on transitioning from IT services to technology-enabled solutions: augmenting traditional government IT labor with proprietary software products (Leidos AI/ML platforms, cloud migration tools, cybersecurity automation) that generate higher margins than staff augmentation. The $1.65 billion acquisition of the security detection and automation business of Smiths Group (X-ray security screening equipment — baggage scanners for TSA checkpoints) in 2021 expanded Leidos into physical security hardware and detection systems for government and commercial airports.
Roseland NJ payroll and HCM leader (NASDAQ: ADP) $19.2B FY2024 revenue (+7%); 1.1M clients, $55B+ float income, TotalSource PEO, ADP NER economic data competing with Paychex and Workday.
About
Automatic Data Processing, Inc. (ADP) is a Roseland, New Jersey-based payroll processing and human capital management company — publicly traded on the NASDAQ (NASDAQ: ADP) as an S&P 500 Information Technology component — providing payroll processing, tax administration, benefits administration, HR management, time and attendance, talent management, and retirement plan services to 1.1 million clients ranging from small businesses (1-49 employees) to large enterprises (1,000+ employees) through approximately 58,000 employees globally. In fiscal year 2024 (ending June 2024), ADP reported revenues of $19.2 billion (+7% year-over-year) and adjusted EPS of $9.14 (+12%), continuing the company's consistent mid-to-high single digit revenue growth and double-digit EPS growth from operating leverage and capital return. CEO Maria Black (appointed 2023, ADP's first female CEO, previously leading ADP's employer services division) leads ADP's strategy of deepening client platform engagement: ADP's "employer of record" (EOR) and professional employer organization (PEO — ADP TotalSource) services handle all payroll, HR compliance, and benefits administration for small and mid-size businesses — creating outsourcing relationships where ADP becomes the operational HR department for companies that lack internal HR expertise. ADP's client fund float (ADP holds $55+ billion in client payroll funds between the time employers fund payroll and ADP distributes payments to employees and tax authorities — a multi-day float period generating interest income on $55B at current interest rates) generated $1.6B+ in interest income in FY2024 as rates remained elevated, creating an earnings tailwind that amplifies ADP revenue growth during high-interest rate environments.
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