KBR vs FOUR Comparison

KBR, formerly Kellogg Brown & Root, is a global provider of technology, integrated engineering, procurement, and construction delivery, and operations and maintenance services. The company's business is organized into two segments: mission technology solutions and sustainable technology solutions. KBR has operations in over 30 countries and employs approximately 36,000 people. The firm generated $7.8 billion in revenue in 2025.

Shift4 Payments Inc is an independent provider of software and payment processing solutions in the U.S., expanding internationally. Its payments platform offers integrated products and services across in-store, online, mobile and tablet-based channels, including end-to-end payment processing, merchant acquiring services, a proprietary omni-channel gateway, eCommerce capabilities, and reporting tools. The company distributes its services through internal sales teams and partners, including independent software vendors (ISVs) and value-added resellers (VARs). Revenue is predominantly recurring, derived mainly from processing fees and subscription revenue from POS software, business intelligence tools and other technology solutions. The company derives maximum revenue from the United States.